I agree Ninja. CAPM has very strong assumptions. For example, it is a one-period model that does not incorporate any priors which may feed into shaping future betas and the state of the market. Clearly, it does not include all risk factors and that's why we have other factor models. Models can...
Hi Ninja,
If I am getting your question right, since beta is related to the covariance of a firm's stock or assets with the market and the variance of the market, betas will change due to an external shock (covariances and variance of market will change). Also, demand elasticity for various...
David's explanation for portfolios with nonlinear payoffs is more important than the linear case because an exam question on this topic is more likely to test the nonlinear case which requires a deeper understanding.
It will underestimate the true VaR because, delta-normal method assumes that the return distribution is normal, that is, it assumes that large negative returns are less likely compared to a fat tailed distribution.
Hope this helps.
My take is that, he is referring to a, in my own words, structure of mean reversion parameter. That is, some news are long-lived (smaller mean reversion parameter) and some are short-lived (larger parameter) and in that regard it is important how the mean reversion parameter is determined to...
arkabose,
When interest rates are high, European put options with less time to expiration are more desirable so that one can sell the underlying earlier and invest the proceeds at the high interest rate.
When it comes to correlation among regressors, the most desirable situation is when the regressors are not correlated at all. But this does not say anything about the level of R^2.
Collinearity impacts a regression through standard errors, meaning that statistical significance of regressors will...
Yes, flat volatility term structure is same as constant volatility over different time horizons. However, in reality, interest rates are more volatile in the short term (the volatility term structure is downward sloping) than the long term. A mean reverting model (e.g.; Vasicek Model) conforms...
Hi MSharky,
It is because the demand for products with high demand elasticity is more volatile than inelastic goods. For example; when economy is good (e.g.; low unemployment, higher wages) households will more likely consume luxury goods but they will also quit consuming these goods first when...
No. Today's results would not change. I was watching the website since the results were out and information were uploaded slowly. First the pass/fail info became available for Part 1 only. Then the performance analysis for Part 1 became available. Same thing happened for Part 2 as well.
In...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.