In a model with housing collateral, the ratio of housing wealth to human wealth shifts the conditional distribution of consumption growth. In the model, a decrease in house prices reduces the collateral value of housing, increases household exposure to idiosyncratic risk, reduces the amount of...

Aggregate stock prices, relative to virtually any indicator of fundamental value, soared to unprecedented levels in the 1990s. Even today, after the market declines since 2000, they remain well above historical norms. Why? We consider one particular explanation: a fall in macroeconomic risk, or...