Bad Surveys
Yet another survey concludes that people are pretty dull when it comes to finances. This time it’s the Teachers Insurance and Annuity Association (TIAA) Institute who asked just over a thousand Americans 28 financial questions. The respondents didn’t do very well. But sometimes, it’s the designers of the study who are dull. A Wall Street Journal article quotes one of the survey’s 28 questions: There’s a 50/50 chance that Malik’s car will need engine repairs within the next six months which would cost $1,000. At the same time, there is a 10% chance that he will need to replace the air conditioning unit in his house, which would cost $4,000. Which poses the greater financial risk for Malik? Anyone mathematically inclined sees instantly that the expected cost is $500 for the engine and $400 for the air conditioner. But the question is which potential repair “poses the greater financial risk for Malik?” In the field of assessing threats and vulnerabilities, “risk” is defined ...