Firm size is an essential factor in examining the relation between returns and idiosyncratic volatilities. This paper documents that, when the idiosyncratic volatility is specified by firm size, the size-portfolio idiosyncratic volatility is statistically significant in explaining the future...

Countries pass through different stages of structural transformation. In the early stage of development, economic activity is dominated by agriculture and mining. As a country develops, firms adopt new technology and move toward industrialization and faster economic growth. Eventually, the...