This paper studies the excess returns on stocks, associated to various company fundamentals on a panel of US stocks from 1979 to 2008. The returns premia are measured using a random coefficient panel data model on the individual stock level. We show that the HML and SMB factors in the Fama and...

We overview different methods of modeling volatility of stock prices and exchange rates, focusing on their ability to reproduce the empirical properties in the corresponding time series. The properties of price fluctuations vary across the time scales of observation. The adequacy of different...