After registering for the FRM exam and purchasing study materials, many new FRM candidates find it difficult to figure out where to begin with their FRM study plan. It is very important to have a study plan because without one, you may not be able to get through the entire GARP curriculum. The GARP curriculum providesRead More

# Archives for October 2015

## Modified Duration

Our forum contains hundreds of questions about duration. Duration often vexes new candidates, in part because there are several types. Let’s first settle a confusion: the units of all durations are years (time). So, regardless of which duration, we can typically say something like “The bond’s duration is 4.52 years.” I taught duration several yearsRead More

## What Is a Z Table?

Functions based on the normal distribution are easy to retrieve in code or excel, so we do not really need z tables anymore, in practice. But we still want to understand the z table. Why? Because the popular exam calculators (TI BA II+ and HP 12c) do not include z table functionality, so we doRead More

## Statistical Inference: Hypothesis Testing and Confidence Intervals

Recently 25 banks were surveyed. Their sample average total capital is 8.40% (i.e., Tier 1 plus Tier 2 as a percentage of risk-weighted assets, RWA) with a sample standard deviation of 1.0%. Our one-sided null hypothesis is that the population’s “true” average total capital is less than or equal to 8.0%.

## Economic Capital (Schroeck)

According to Schroeck, economic capital is an estimate of the overall level of capital necessary to guarantee the solvencyof the bank at some predetermined confidence level. Which stakeholder tranche represents the “critical threshold” targeting by this confidence level?

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