We study portfolio choice when labor income and dividends are cointegrated. Economically plausible calibrations suggest young investors should take substantial short positions in the stock market. Because of cointegration the young agent's human capital effectively becomes "stock-like." However,...

Prior to the stock market crash of 1987, Black-Scholes implied volatilities of Samp;P 500 index options were relatively constant across moneyness. Since the crash, however, deep out-of-the-money Samp;P 500 put options have become %u2018expensive%u2019 relative to the Black-Scholes benchmark....

Prior to the stock market crash of 1987, Black-Scholes implied volatilities of S&P 500 index options were relatively constant across moneyness. Since the crash, however, deep out-of-the-money S&P 500 put options have become 'expensive' relative to the Black-Scholes benchmark. Many researchers...

Empirical evidence shows that changes in aggregate labor income and stock market returns exhibit only weak correlation at short horizons. As we document below, however, this correlation increases substantially at longer horizons, which provides at least suggestive evidence that stock returns and...