The financial crisis of 2007-08 has underscored the importance of adverse selection in financial markets. This friction has been mostly neglected by macroeconomic models of financial frictions, however, which have focused almost exclusively on the effects of limited pledgeability. In this paper, we fill this gap by developing a standard growth model with adverse selection. Our main results are that, by fostering unproductive investment, adverse selection: (i) leads to an increase in the economy's equilibrium interest rate, and; (ii) it generates a negative wedge between the marginal return to investment and the equilibrium interest rate. Under financial integration, we show how this translates into excessive capital inflows and endogenous cycles. We also explore how these results change when limited pledgeability is added to the model. We conclude that both frictions complement one another and argue that limited pledgeability exacerbates the effects of adverse selection.

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The degree of intergenerational altruism is estimated in a benchmark Barro-type OLG framework with imperfect altruism, exploiting the exogenous variation generated by reforms of the tax treatment of bequests and inter vivos real estate donations enacted in Italy between 2000 and 2001. Using longitudinal information on the housing stock and house prices in 13 large Italian cities between 1993 and 2004, the structural parameter of interest is estimated via the effect of the reform on house prices. We estimate a degree of intergenerational altruism ranging between 0.2 and 0.3, a magnitude consistent with existing parametrization for the US economy. This suggests that intergenerational altruism may be similar across advanced economies.