I found this image (shown below) illustrating the dynamics of home accidents as published in the 1973 editorial by W. G. Johnson entitled “Sequences in Accident Causation” (Journal of Safety Research, Vol. 5, No. 2, pp. 54-57):
I interpret the “Point of No Return” as “BOOM” on the accident-loss timeline.
Today was a really information-packed lecture. Perhaps the most dense lecture I ever gave. I did this because I really want to get the basic concepts out on the table now so I can spend most of the next few weeks making sense of these concepts. Here is my account of how the lecture went and what was covered:
I began the lecture with a little literature show and tell – I brought with me a book that I find to be a very good snapshot of the current state of practice of security risk management. The book is by Michael Blythe and it is entitled Risk and Security Management: Protecting People and Sites Worldwide (2008, ISBN: 978-0470373057). Personally, I decided not to use this book as a course text because it does little to address the mathematical basis of risk, does not provide much guidance on how to creatively reason about answer to risk questions, and doesn’t talk much about the more fundamental issues shaping risk communication (e.g., perception issues). My stated goal, after all, is to build risk literacy and risk intuition. However, this book really nails down how risk management is done in practice, to include what types of threats to look at, how to structure a site visit, how to construct a risk assessment report, etc. So, at best this book is complementary to the materials of my course. I highly recommend it to anyone wishing to learn more about how risk assessment is really done (but I must caveat that I do not necessarily endorse the way things are being done now as the way things should be done).
Consistent with one of my proposed changes for SRA 311 this semester, I introduced into today’s lecture several low stakes mini quizzes. The first was a question about the definition of risk taken directly from the study guide for the Physical Security Professional (PSP) credential from the American Society for Industrial Security. The second question related to the six questions of risk, and was taken from the Certified Information Systems Security Professional (CISSP) study guide by Shon Harris (6th edition, ISBN: 978-0-07-149786-2). I think I will continue this trend into the semester.
The remainder of the course focused on some pretty basic concepts of risk, in particular:
What is security?
What is risk management for?
What is a security context and why is it important?
The Six Questions of Risk
The risk triplet and the quantitative meaning of risk (or rather, mathematical phrasing of risk)
Scoping a risk study (STEM+VR)
With some review and reflection, I think the students should now be able to at least articulate what a risk study is supposed to do. In the latter part of next week we will start talking about what answers to the six questions of risk should look like. But first we need to better understand the nature of uncertainty and ignorance, which is the theme of the next lecture.
Oh, and next time starts my weekly quizzes (of which there are 14 this semester). The topic: words, definitions, questions, and scoping. I am also having the students read a pretty good article “An Introduction to the Concept and Management of Risk” by James Matschulat (an adjunct faculty member in the criminal justice department at the University of New Hampshire). This [really good] article is part of an edited volume entitled National Security Issues in Science, Law and Technology (2007, CRC Press, ISBN: 1-57444-908-7).
Hooray! As of about 6:30PM on Saturday, 20 Dec 08, I am done with SRA 311 (Risk Management) for the Fall 2008 semester! I have been thinking for several weeks now about what worked in SRA 311, what didn’t work, and what could be better from both student and instructor (and teaching assistant) perspectives. And now that class is over, I decided to take a few hours to write-about how I plan to do things differently for iteration 2 of SRA 311 in Spring 2009. For reference, I include my Fall 2008 syllabus below:
In the following I will just highlight a few of the changes I plan to make in the second iteration of SRA 311.
Revised Course Content for Iteration Two of SRA 311
Probability Theory: Looking back, I think I overstressed some less important topics, and forgot to include others I am now finding to be quite important. The most important thing I should have done was go over the basics of probability theory in detail rather than assume that my students were fully equipped to think probabilistically (I should have known better given that, at best, my students have had only a few lectures on the subject prior to taking this course). So, for the first part of the course, I plan to get serious about teaching probability theory from first principles. But of course, I will discuss this subject with respect to its place in security risk management. (btw: the book I plan to draw from is Introduction to Applied Probability by Pfeiffer and Schum, 1973, ISBN: 0125531508).
The Six Questions of Risk, Risk Triplet, and Definitions: As I did last semester, I plan to stress the six questions of risk assessment and risk management over and over again. The same holds for my repeated mention of the risk triplet and the definition of risk. This time, however, I will emphasize the risk triplet as being the set of scenario, s (which is the pair of initiating event and outcome, or s = (e,o)), probability of the scenario, p, and utility associated with the scenario, u. That is, risk is the set of all relevant ordered triples {<s,p,u>}. As for definitions, I am going to largely focus on risk as the potential for harm or loss, and thus save the more generic definition (i.e., risk as uncertainty about future events) for graduate discussions. Also, I will also stress the need for common definitions issue less as I found that such talk either goes over my students heads at best, or confuses them at worst.
Set Theory and Open vs. Closed Worlds: As I did last semester, I will spend about a week talking about sets (mutually exclusive, collectively exhaustive, conditionally exhaustive, etc.), as well as talk quite a bit about the difference between open and closed world thinking (w/ residual hypothesis). I still think that talking about open worlds (i.e., admitting the possibility of a residual hypothesis) should be introduced at the very beginning of a student’s exposure to risk and uncertainty. See my previous post on the topic. I plan to keep this lecture pretty much intact, but I do think I might add a few more security-oriented examples.
Utility Theory: To accommodate a full discussion of risk, I will be sure to spend a full lecture on the basics of utility theory, to cover what utility is, aspects of multicriteria decision analysis, risk attitudes, and so on. Last semester I spoke about utility for only 10 or so minutes, and consequently my students could not speak to the topic on the final. Though I a lot of utility theory was already covered in the prerequisite class SRA 231 (Decision Analysis), a little review couldn’t hurt.
Support Theory, Possibility Theory and Surprise: Integrated into my discussion of probability theory will be a discussion of support theory (the descriptive side of humans and probability), mention of possibility theory and its axioms, and also mention of Shackle’s theory of potential surprise. I am not clear yet how just where these discussions will occur, but they will surely happen somewhere during the first part (fundamentals) of the course.
Talk About Uncertainty: The discussion of uncertainty (aleatory and epistemic) and all its types will be presented up front with or soon after the introduction of the concept of risk. If all goes well, this will happen during lecture 2. We will also include the discussion of different types of ignorance at this time (unlike last time when it felt out of place in lecture 11).
Security Context and the Eight Elements of Thought: As I did last semester, I will introduce Liner and Paul’s Eight Elements of Thought and Intellectual Standards in great detail during the first lecture. Then, as before, the students will apply the Eight Elements and Intellectual Standards to their first Critical Article Review (CAR) assignment of Manunta’s paper “What is Security?” (published in a 1999 issue of Security Journal). The second lecture will be spent going over the Eight Elements and the Intellectual Standards as they apply to Manunta’s article, discussing the concept of a security context, and then proceed to do an in class example identifying and articulating different security contexts. This semester I want the students to be confident about the Eight Elements and Intellectual Standards by the end of their first week.
Accreditation: As part of the discussion on risk acceptance in Part III of the course, I will include a discussion of accreditation, or the practice of acknowledging that the risk associated with a protected asset is acceptable with respect to its value and purpose. I didn’t do this last semester, but now that SRA 311 is an essential part of the NSA Certificate in Risk Analysis, I figured I ought to start talking about accredidation. I will also include a discussion on standards, whether implicit (e.g., what would a normal security manager do) or explicit (e.g., contractually).
Life-Cycle Cost: When I talk about risk management this semester, I will be sure to include a discussion of life cycle cost of a risk mitigation strategy, to include maintenance costs, replacement costs, operational and procurement costs, and more interestingly, the implicit costs of decreased performance as adversary’s adapt and learn to overcome the countermeasure.
The Insurance Game: My good friend Professor Bilal Ayyub at the University of Maryland recently pointed out to me an interesting pedagogical exercise aimed at teaching undergraduates how to appreciate the role insurance plays in risk management. This semester, I plan to try out this game in the classroom to see how it works (and perhaps spend some money making cool game props, such as custom cards and so on).
Expert Elicitation and Probability Calibration: Last semester I spoke about probability, but did not talk at all about how to elicit probabilistic information when needed. This means that I also did not talk about how to calibrate personal probability judgments. Though I had every intention of talking about this during my fact finding discussion (which I also skipped over), this semester I will be sure to spend a whole lecture on the subject. I will call this lecture “Expert Elicitation and Fact Finding.”
Analytic Confidence: The discussion of analytic confidence will take place sometime in the first 5 weeks of class, probably after my discussion of conditional probability and possibility theory. Last semester I spoke about this all-too-important subject during lecture 20 – by then it was already too late for the concepts to sink in. I won’t make this mistake again.
Influence Diagrams: I am kicking myself for not discussing influence diagrams in class this past semester. Next semester I plan to not only talk about influence diagrams, but also have students use one or more software tools to draw and quantitatively analyze influence diagrams. This should be fun.
Decision Advantage: While risk analysis does promote decision advantage, I think that I will abandon this awkward phrase next semester. Instead, I will simply stick with “risk analysis informs decision making.”
Metrics and Formulas for Risk: As I did last semester, this semester I plan to cover all the relevant measurement scales and formula types one might encounter in a risk analysis methodology. But this time I will do it all in one lecture (or maybe a lecture and a half). I will also have some references to draw on this time around.
Pre-Mortem Analysis, Root Cause Analysis, and Convergent/Divergent Thinking: Last semester I ran an interesting case study focused on the 2007 shooting incident at the Virginia Tech campus. A few lectures after running this case study I figured out how to relate pre-mortem analysis and convergent/divergent thinking ot the case-study. But by the time I did this, it was already too late to solidify the connection in the student’s minds. So, this semester I plan to spend a week covering pre-mortem analysis and covergent/divergent thinking (and introduce the similar topic of root cause analysis) concurrently with running the case study. But unlike last semester’s VT case study, this semester’s focus will be on Aum Shimrikyo and the mid-1990’s sarin gas attack on the Tokyo subway. Other options might be a case study on the Khobar Towers bombing or one focused on the bombing of the Marine barracks in Beirut.
More Information Security and Crime, Less Terrorism: While terrorism is a hot topic these days (though becoming less so), I want to be sure that my course on security risk management (i.e., security in general) covers more than notional terrorists with bombs. This semester I plan to spend more time thinking about information security problems, routine criminal problems, and perhaps a little bit of personnel security/executive prevention. I will also talk about loss prevention as an idea, and also spend some time examining how safety balances and sometimes interferes with security.
CORAS, the McCumber Cube Model, and others: This semester I will start talking about a number of established security concepts and processes, to include CORAS, the McCumber Cube model, and OCTAVE, in addition to reviewing the basic concepts of the security bow tie and the swiss cheese model. But since these topics are no fun to hear about on their own, I still need to figure out a strategy for integrating them into the standard flow of course ideas. I think I figured out a way…
Certifications, Professional Societies, and Ethics: This time around, I will emphasize all the different certifications and security professional societies all throughout the semester. I plan to also integrate ethics into the curriculum in two ways – first by highlighting ethical issues as a matter of course during the semester, and to cap the course off with an ethics story-telling exercise on the last day of class (as I did this past semester, but this time it will be more structured).
Real Questions from Real Certification Exams: This semester I plan to integrate real risk management questions from either the CISSP exam, CPP or PSP exam, perhaps even the CAS Exam P (for actuaries). The goal here is to highlight that everything I teach in my class is relevant to things that matter in the professional world. I anticipate that no less than 25% of the final exam will consist of questions taken from professional exam study guides.
Assignments and Policies
Established Groups at the Beginning of the Semester: On day one I will assign all students to work in groups of my crafting. They are free to make individual trades among themselves long as the class is evenly divided into groups. These groups will work on all in-class exercises, homework, and projects together.
More Quizzes: Attendance was a big problem for me last semester. Without having the data in front of me, I estimate that, on average, only 60% of students showed up for any given lecture. So, this semester, in attempt to better prepare my class for the multiple-choice final exam, to review course material in a fast and effective way, and to take attendance, I plan to give frequent in-class multiple choice quizzes on either the assigned readings (CAR-style questions) or previous lecture’s material. Quizzes will be my means of taking attendance as well as gauging student performance.
More Organized CARs: Unlike last semester where I divided up the class so that 10-14 CARs were due at each lecture, this semester I plan to arrange the schedule such that all students work on CARs at the same time. This means five CARs, each due for all students at the same time. No make-ups. The format for these CAR assignments will be exactly the same as it was last semester.
Critical Book Reviews: Like last semester there will be two required book reviews. But unlike last semester, I will prescribe both books. The first book is Against the Gods: The Remarkable Story of Risk by Peter Bernstein, and the second book is Risk Intelligence by David Apgar. The format for these assignments will be exactly the same as before.
Homework: Ah, there will be homework assignments this semester. Homework will largely consist of preparatory exercises for quizzes. But there will be times when I ask for, say, an influence diagram, some worked problems, etc. All homework will be done in groups.
Final Course Project: This semester, the focus of the final project will be focused on building a risk assessment tool for exploring a particular risk problem of interest to real decision makers. That is, the tool is primary, and will be supported with some multi-media presentation (e.g., reports, poster, auto slide show, You Tube, etc.). While the topics have yet to be determined, I will make available 5-10 topics that groups may choose from. I am tentatively thinking about one or two on maritime piracy, one or two on lab site security, one or two on online communities, one on social engineering, one on party security, and so on. I am still eliciting ideas from people, and hope to have a list in hand by the second week of class.
Methodology Appraisal: There will be no formal methodology appraisal this semester. Rather, I will integrate a methodology review into one or two of the five CAR assignments.
Final Exam: There will be a final exam that, for the most part, will assume the same form as the exam from the Fall semester. There is some question in my mind whether to keep the CAR in the exam or if I should make the entire exam one big multiple choice test. I think I will keep my options open for the next few weeks.
Extra Credit: I always give extra credit, but never anything that amounts to more than 5% on top of a student’s final grade. This semester, extra credit was very helpful for those students who, for some reason or another, didn’t do well on the first assignments of the semester. Although I will not guarantee extra credit opportunities, I suspect that something will come up toward the middle-end of the semester. After all, it helps out those who did well on previous assignments, but not well enough to meet my cutoff values for certain letter grades. But in a perfect world there would be no need for extra credit since everyone would have already done superb routine work…
Attendance: Attendance in required. I will take attendance most of the time this semester, but not always. My policy for attendance is that I don’t give points to students for showing up to class. Rather, I take away points for not showing up to class. My plan for Spring is to implement an attendance policy that is tolerant of up to two (2) random absences, and then for apply a reduction factor to the final exam grade that is in proportion to the number of classes missed. If a student misses all classes, that student will get a zero on the final regardless of whether he or she actually takes it [in math speak, the final exam grade = actual score * (attendance days - missed days)/attendance days]. This is a hard core policy, but perfectly reasonable.
Course Materials: This semester three books will be required – two for the book reviews (see above) and one newer version of a book covering the Eight Elements of Thought. However, this semester I will also insist on using a variety of online soft-copy materials that will all be posted to the PSU course management system (i.e., ANGEL).
Office Hours: Despite having official office hours posted, either no one comes or they try to schedule a different time with me. So, my intentions this year are to have office hours by appointment only. But I also plan to do it in different environments, such as Second Life, PS3 Home, Skype, etc. It is high time I become more IST-ized.
No TA, But One Grader and One TI: Unfortunately, next semester I will not have a TA to help me along with my class. Instead I will have one undergraduate grader working for SRA 311 10 hours per week, and one teaching intern who will take part in class activities and maybe an occasional afternoon or evening event. I, personally, don’t know how I will function without a TA, but I suspose things should be ok if my grader and TI are good (which I suspect they will be).
Better Class Time and Better Room: I am by no means a morning person. This is why I am happy about having a class that begins at 11:15am instead of 9:45am. On top of that, I am pleased to find that I am moving my class from the worst room in the IST building (IST 205 with annoying tabletop Macintosh computers) to the best room in the building (IST 206 with PC laptops). I suppose that, in some may, the later class time and better room make up for the college taking away my teaching assistant.
My Blog About the Class: Next semester I intend to make more efficient use of my blog for recapping course content. The way I am going to do this, though, is to point to relevant reference materials to support learning instead of writing lecture notes from scratch after each class session (my tendency to write a lot about each lecture acted more as a deterrent to writing than I intended). I will also start to tweet about the class and integrate some other types of web communication technology (RSS feeds?).
Future Challenges
Two Sections of SRA 311: In Spring 2009, there will be two offerings of SRA 311. One of these (the larger one) will be taught by me on Tuesday/Thursday mornings. A smaller section of SRA 311 will be taught Tuesday/Thursday afternoons by Professor Dave Mudgett of IST 230-fame. What this means is that we have to coordinate our class schedules, or at least align the learning objectives for our courses.
Cybertorium in Fall 2009: Beginning Fall 2009, my understanding is that SRA 311 will be moving to the infamous IST Cybertorium, a 150+ person computer-ridden ampitheatre not at all designed for fTf (face to face). Fortunately (and by my request) the schedule should be such that the class will meet twice per week for 50-minutes in the Cybertorium, and one more time per week in smaller groups at a location somewhere away from the IST building. The astute reader will see here that I am making lecture more of just that – a lecture. My intent is to move all in-class activities to the recitation sections where students can spend an entire hour applying the things they learned in the lessons prior. To accomodate this move to the cybertorium, I will be, in a small way, treating my Spring 2008 course as a cybertorium class, focusing mostly on lectures with fewer in-class exercises. But when in-class exercises do occur, they will be extensive.
Guest Speakers: For some reason, I feel some pressure to recruit a guest speaker or two this semester. A challenge for me is to identify who would be a good speaker that can (a) entertain the students, (b) convey useful real-world insights, and (c) align his message with the learning objectives I would otherwise have to address were I giving the lecture. Any thoughts?
Epilogue
I invite interested readers to make suggestions regarding what to include, what to stress, what to omit, and what to test. I will be posting a revised syllabus to this blog within the next two weeks. Note that I reserve the right to add more to this post (either directly or via comment) as I things come to mind.
In the course of my searching for good examples for use in my SRA 311 (Risk Management: Assessment and Mitigation) course, I came across the following examples and resources that proved helpful:
Security and Loss Prevention: An Introduction, 5th Edition (by Philip Purpura, 2007, ISBN: 978-0123725257): This book, while not my favorite textbook in the world, is one of the few books on security that actually has exercise problems (case problems) at the end of each of its nineteen chapters.
Practical Risk Analysis: An Approach Through Case Histories (by David Hertz and Howard Thomas, 1984, ISBN: 978-0471101444): Chapter 7 of this book had an excellent case study focused on how an underwriter performed a first-order risk assessment of a company’s computer information systems. This case study provided a springboard for talking about risk attitudes, the role of insurance, ruin, and so on. Unfortunately, this book is very out of print, so you will have to order it from a used bookseller to read the case study I am talking about (and all others in the book).
Risk Management for Security Professionals (by Carl Roper, 1999, ISBN: 978-0750671132): Appendix A of this book offers a near complete security risk analysis exercise through a series of five vignettes (asset ID, threat analysis, vulnerability assessment, risk assessment, and benefit-cost analysis). But be warned – this case study takes a long time for students to complete, and should be something that extends throughout an entire semester (not a week like I did – yikes!). The book itself is ok, but like most other security risk management books, it lacks end of chapter exercises. But at least the case study is good.
Now keep in mind that I sifted through twenty or more books over the course of four hours one very late Monday evening/Tuesday morning on risk analysis, security management, and so on, looking for good examples and case studies to use in my SRA 311 class. The above three resources are all that I found in this time. This is not to say I didn’t miss anything – I am sure there are a number of in-chapter worked-out exercises that I could adapt to meet the needs of my class. But I did do what I thought was a pretty good job looking through these books. I will spend some time over Christmas break looking through these items again.
Meanwhile, if you are a reader that does security risk analysis, please feel free to suggest sources of problems, exercises, and case studies. For one, I plan to mine Certified Information Systems Security Professional (CISSP), Certified Protection Professional (CPP), Physical Security Professional (PSP), and Society of Actuaries Exam P exam reference materials for questions. One goal I have for my class is to ensure that successful students will be able to correctly answer all risk-relevant questions on the CISSP, CPP, PSP, and SOA Exam P exams, or at least be able to take their newly acquired intuition to reason toward the correct answer.
For those readers following the current financial crisis, one can come up with a number of seemingly good reasons for and against the US government’s proposed bailout package. I admit that I am very ignorant of the inner workings of the extremely complex system we call “the economy” as it is (as most people are, whether they realize it or not, economists included). Because of this, I am in no position to assess the benefits (which may, in general, be negative) and risks associated with a bailout. The only information I have is the direct cost of action (up to $700,000,000,000 or more) and direct cost of inaction ($0).
Due to my extreme ignorance of the economy, all I can estimate are three possible futures given that the US government proceeds with the bailout (mutually exclusive and collectively exhaustive; event labels shown in parentheses following scenario narratives):
The bailout will hurt the economy relative to inaction (“-”|B)
The action taken will not change anything about the economy relative to inaction (N|B)
The bailout will improve the economy relative to inaction (“+”|B)
Following LaPlace’s principle of indifference, I am forced to assign a probability of [0,1] to each of these three scenarios since I have minimal understanding of the economy. In “precisiated” form (to use the term coined by Professor Lotfi Zadeh), this means that the probability of each scenario above is equal at 0.333… or 1/3.
If the bailout does not happen (“Not B” ior “~B”), then there are three possible outcomes:
The economy is worse in X years than it is now (“Worse”|~B)
The economy is the same in X years as it is now (“Same”|~B)
The economy is better in X years than it is now (“Better”|~B)
Let’s assume X = 5. Again, following principle of indifference, I am forced to assign a probability of [0,1] to each of these three scenarios. In “precisiated” form, this means that the probability of each ~B scenario above is equal at 0.333… or 1/3.
Just for sake of argument, lets express the state of the economy in terms of an overall “utility” value labeled U. For the three ~B scenarios above, we then have the following utility values where a value of 0 corresponds to the current (i.e., today’s) state:
U(“Worse”|~B) = -a
U(“Same”|~B) = 0
U(“Better”|~B) = b
Obviously, -a ≤ 0 ≤ b, or rather “a” and “b” provide magnitudes and the signs preceding these variables specify whether this magnitude is good or bad. Now let’s examine the expected utility associated with each option “Not Bailout” or “Bailout.” For the ~B option, we have (not including cost to implement):
In the above, “c” is the magnitude of “Δbad” with respect to the non-bailout possibility of “-a”; “d” is the magnitude of “Δbad” with respect to the non-bailout possibility of “b”; “e” is the magnitude of “Δbad” with respect to the non-bailout possibility of “0″; “f” is the magnitude of “Δgood” with respect to the non-bailout possibility of “-a”; “g” is the magnitude of “Δgood” with respect to the non-bailout possibility of “b”; and “h” is the magnitude of “Δgood” with respect to the non-bailout possibility of “b.”
The expected five-year benefit of the bailout action is the difference between the expected utility of bailout and the expected utility of no bailout, or:
Benefit(B) = U(B) – U(~B) = (f+g+h-c-d-e)/9
The question now is whether expected benefit exceeds the cost of implementing the bailout plan, or does Benefit(B) ≥ $7·1011? In terms of the benefit above, is (f+g+h-c-d-e) ±Y ≥ $6.3·1012 ± Z? (note that I added the “Y” and “Z” to account for costs, benefits, and risk outside the immediate scope of my reasoning). Well, I cannot answer this question of judgment given my personal knowledge of “the economy.” And again, I doubt there is more than perhaps just a few people out there that could state with any appreciable degree of confidence that this inequality will be true in five years time. The only reliable way to work toward an answer to this question is to debate various positions. Admittedly, this is what congress is doing right now. But for a problem as big as the media and president claims it to be, I doubt sufficient debate can occur in the perceived window of opportunity for action (regardless of whether this perception is accurate).
Now why did I go through all of that only to say that I have no idea whether or not this equality is true? The reason is simple – when it comes down to strict economic terms, the real question is whether (f+g+h-c-d-e) ≥ $6.3·1012. Basically, this is the explicit form of the otherwise vague question “do the benefits of the bailout meet or exceed its costs?” To date, answers have been as vague as the question they are working with.
I have my own suspicions as to why the bailout is being given serious consideration, and it is simpler than the reasons offered in the media. Basically, decision makers are averse to increased ontological uncertainty. Ontological uncertainty, as explained by Professor DG Elms at the University of Canterbury in his paper “Structural Safety – Issues and Progress” published in the journal Progress in Structural Engineering Materials, Vol. 6, No. 2, pp. 116-126 (2004), doi:10.1002/pse.176, has to with the unknown and unexpected, or uncertainty due to our lack of understanding of what really exists (I personally do not see much difference, conceptually, between ontological uncertainty and epistemic uncertainty, as both are reducible forms of uncertainty having to do with lack of knowledge). Let’s view the bailout as a measure aimed at mitigating increasing ontological uncertainty. Currently, decision makers and their advisers across government and academia have some understanding of how this complex system we call “the economy” works as it was a few days, weeks, or months ago (as meager this understanding is). Unfortunately, the extremeness of recent events is forcing a structural change within this complex economic system. When the dust settles say, one, two, or three years hence, we will be left with a new economy that, while functional, has the potential to be radically different from the economy we have come to understand. The bailout, thus, can be viewed as a strategy aimed at trying to keep the economy as it was AND to not let it self-correct. If the economy stays as it was, then our collective understanding of how it works remains relevant.
But no one can deny that, regardless of whether the bailout passes, change is-a-happenin. Several structural changes have occurred already, e.g., less lending, government intervention with AIG, Bank of America purchasing Washington Mutual, Citigroup wanting to purchase Wachovia, etc. How does the economy work now relative before when Washingto Mutual and Wachovia existed? And with any intervention, while it may preserve what is left of “the economy” as we knew it, it is bound to set precedent for future government intervention both here and abroad, may adjust investor attitudes toward risky propositions, sour public sentiment, and so on. That is, while the bailout might quell change in the economic system, it may also significantly impact the socio-political system that the economy relies on to function. At this point, I suspect the total amount of structural change that will occur, bailout or not, will leave our experts more in the dark about how our system works than they were not too long ago. That is, ontological uncertainy is increasing regardless of whether action is taken. Then again, were we in the dark to start with? If so, this might explain why we find ourselves in this mess.
Inspired by a recent post on Kristan Wheaton’s blog Sources and Methods highlighting the neat Cymbolism project website, I felt inclined to submit various words that are relevant to my interest in risk and uncertainty analysis. After all, who wouldn’t want to know what colors people associate with certain words? For those readers unfamiliar with the Cymbolism project, basically it is an Internet-wide survey that presents participants with a word and asks them to select one of 19 colors that best matches the mood or visual images inspired by the word. The goal of this project is to:
attempt to quantify the association between colors and words, making it simple for designers to choose the best colors for the desired emotional effect (see the blog for more details)
I just checked the site, and to my surprise, all of the words I submitted are now taking opinions from web passer-bys. Unfortunately, the site doesn’t offer a feature to dynamically link to the color scheme for a word, at least not yet. So, instead below are the links to the various words of risk and uncertainty that might be of interest for risk and uncertainty students, researchers, and practitioners.
impossible: (very bold and dark in a manner similar to confident and certain, but with more black. Very interesting, especially given that “impossible” is a high confidence or certainty word)
I can’t help but feel partly inspired to develop several questions that might warrant future experimentation. For example, can the intensity of colors be pegged to varying degrees confidence? Based on what I have seen so far, more confident words were bolder (brighter, more intense, e.g., “certain”) than less confident words that were more subdued (bland e.g., “uncertain”). Does this hold in general? I submitted several other words to test this hypothesis (albeit in a very loose way), including “distrust,” “high confidence,” “moderate confidence,” “low confidence,” “no confidence,” “surprise,” and “chance.” These phrases have yet to be posted. The results from this general experiment might be of interest to the intelligence community; after all, there was a time when colored text was used to communicate levels of confidence. Maybe we should focus on changing the intensity of the colors to express confidence rather than changing the colors themselves? That is, instead of making low confidence red and high confidence green, what if we made low confidence light gray and high confidence black? Can you imagine what an NIE that followed such a scheme would look like? Just for grins and illustration, I took the unclassified key judgments of the November 2007 NIE entitled “Iran: Nuclear Intentions and Capabilities” and applied shades of gray to complement judgments (see below). Overall, it doesn’t look that bad.
Also, notice that the words “likely” and “probable,” while similar in meaning, have different color distributions (you have to see for yourself). It seems that there is general agreement on what “likely” means “cymbolically,” yet no apparent agreement on what “probable” means. Perhaps this result suggests that “likely” is a better word stem to use than “probable” when communicating degrees of likeliness given its stronger cymbolic agreement. Of course, whether cymbolic agreement matters depends on whether it serves as a proxy for conceptual agreement. I have yet to do a literature review to see how academia might address this line of thought, or if remains an open question.
What I found really interesting was the fact that the words “risk,” “threat,” “hazardous,” “dangerous,” and “unsafe” are all cymbolically similar (also very red). I will add the words “hazard,” “danger,” “peril,” to see just how red they get, but I suspect they will yield the same results. In practice, many risk scholars get quite frustrated when practitioners equate the concepts of risk with threat. Having seen the Cymbolism results, it seems now that the equality happens at perhaps a much deeper level. Maybe one strategy to break people of this equality is to push different colors for the terms risk and threat (it is ok if threat and hazard are taken to be the same), such as through colored text definitions, colored images, marketing materials, etc. The question I have then is whether color re-conditioning assists in getting people to dissociate previously accepted word equalities? Or in simpler speak, if I condition a group of people to start to see threat as cymbolically purple, will they also stop equating the words risk and threat? If so, would complementary colors work better than more similar colors? A very interesting experiment indeed.
Another question to ask is how an adverb such as “very” or “somewhat” affects the color schemes for a word. From the results so far, likely appears dominated by greens and blues. What if we say “very likely” instead? Does the color scheme become more green, more blue, less intense, more intense, or what? Does the phrase “somewhat likely” have the opposite effect? Again, more questions worth testing. I will try to submit these words too.
Finally, I am curious as to whether the definitions offered for a word actually have any affect on the survey responses. An interesting study might, at random, decide to show or not show the definition, keeping track of the responses in both cases. My current hypothesis is that the average results would be the same regardless of whether the definition is shown. If I am wrong, then what effect do differing usage contexts have on the color scheme? An extension to this experiment might test the impact of incorrect definitions on colors. So many things can be done with this project!
Proposed Enhancements to the Website
As you might have guessed, I am VERY intrigued by this study. But I feel that more data post-processing can and should be done to learn discover new and interesting things about the relationships between words and colors. Here are some suggestions that, hopefully, make their way to the developers at Cymbolism:
Make it so that users can download the data, say, in an Excel spreadsheet or data file. The image below shows how I would like to see the raw data (and I am almost certain it is stored in the database this way). Having the data available would help us in the academic community better understand the relationship between colors and words (and in my case, between colors and notions of risk or degrees of confidence), and whether such a relationship is worth further study.
Calculate the level of “conflict” in the responses. Basically, what is the entropy of the color scheme? Maximum entropy occurs when there is complete disagreement among colors for a word. For example, a word for which there are equal number of votes for each of the nineteen color has maximum entropy. In contrast, zero entropy occurs when everyone agrees that a particular word is associated with a particular color. Such a metric, as straightforward as it would be to implement, would help me understand the extent of disagreement without having to count the number of colors represented and measure the relative proportions using a soft-ruler (e.g., line segment in MS Visio). Given the fractions pi = Ni/NTotal for each of the 19 colors i with data inputs Ni (NTotal is total number of responses), entropy can be assessed as follows:
S = -Σpilog(pi) (summation over all colors i = 1, 2, … 19)
Calculate a word similarity measure. Envision a matrix such as is shown below, where column and row headings each are filled with all words for which there is data. A cell in this matrix would provide a measure of similarity in “cymbolic” meaning, where, say, 100% means the two words are “cymbolically” equivalent and 0% corresponds to completely inequivalence. Such a measure would allow me to make more defensible statements of the extent to which “risk” and “threat” are cymbolically the same.
Enable embedding of the color scheme in personal blogs, wikis, etc. This is just something I, personally, want to have for my blog. As you can see from my static blog page header image, I currently have to take a snapshot of the webpage, open it in paint, cut out the color bar, copy and past it into Visio, measure it out and replicate it using rectangular boxes, and then save as a .gif or .jpg so I can post it to my webpage. That is a lot of work! Embedding the image would have been far easier.