This paper examines the impact of innovation on future profitability and stock returns. We first replicate confirm findings Hirshleifer et al. (2018) in U.S. setting. Consistent with we find that is associated with: (1) higher more persistent suggesting innovative firms are able to maintain a competitive advantage (2) positive returns mispricing current share prices. When extend these analyses ...

volume indicates. Index options give market participants the ability to participate in anticipated market movements without having to buy or sell a large number of securities, and they permit portfolio managers to limit downside risk. Given their prominence and functions, the pricing efficiency of these markets is of great importance to academics, practitioners , and regulators. Well-functionin...

This study examined the role of positive and negative discretionary accrual management in the stock price impact. A sample of 66 firms listed in Tehran Stock Exchange was selected for a ten-year period (2008-2017). Accrual management was found to lead to significant changes in stock prices, and uninformed investors incur trading costs caused by the stock price impact. The results showed two key...

In an exchange economy under uncertainty populated by multiple consumers, we how the heterogeneity in the individual consumers’ subjective beliefs affect the representative consumer’s utility function. We derive a formula that indicates that the more heterogeneous the individual consumers’ beliefs are, the higher probabilities the representative consumer’s belief attaches to extreme events that...