This paper studies the efficiency of financial intermediation through securitization in a model with heterogeneous lending opportunities and asymmetric information about the quality of securities. Issuers of securities can signal their quality by providing recourse to security buyers. I find that signaling increases the variation in the degree of asymmetric information over the business cycle, which creates the documented growth asymmetry in the cycle. In particular, in the boom stage of the business cycle, security quality remains private information and lower-quality securities accumulate on the balance sheets of lenders. This inefficient allocation of capital implies a deeper drop in output in a subsequent recession proportional to the length of the preceding boom.

We examine third-party loan repayment guarantees in a model in which lenders can screen, learn loan quality over time, and can sell loans before maturity when in need of liquidity. A loan guarantee improves market liquidity and reduces lending standards, with a positive overall welfare effect. Guarantees improve the average quality of non-guaranteed loans traded and thus the market liquidity of these loans, which is a positive pecuniary externality. As a result, guarantees are excessively low and should be subsidized. Our results contribute to a current debate about reforming government-sponsored loan guarantees.

We identify a sizable wealth redistribution channel which creates a monetary policy trade-off whereby short-term economic stimulus is followed by persistently lower output over the medium term. This trade-off is stronger in economies with more nominal household debt but weakened by a more aggressive monetary policy stance and under price-level targeting. Given this trade-off, low-for-long episodes can lead to persistently depressed output. The medium-term implications of the wealth redistribution channel rely on the presence of labor supply heterogeneity, which we show both analytically and in the context of an estimated New Keynesian general equilibrium model with household heterogeneity.

Markets for securitized assets were characterized by high liquidity prior to the recent financial crisis and by a sudden market dry-up at the onset of the crisis. A general equilibrium model with heterogeneous investment opportunities and information frictions predicts that, in boom periods or mild recessions, the degree of adverse selection in resale markets for securitized assets is limited because of the reputation-based guarantees by asset originators. This supports investment and output. However, in a deep recession, characterized by high dispersion of asset qualities, there is a sudden surge in adverse selection due to an economy-wide default on reputation-based guarantees, which persistently depresses the output in the economy. Government policy of asset purchases limits the negative effects of adverse selection on the real economy, but may create a negative moral hazard problem.

Bail-in bonds have gained a lot of attention among bank regulators. These bonds supposedly raise the hurdle for a government bailout by converting into loss-absorbing capital once the issuing bank runs into trouble. We argue that banks can short-circuit bail-in requirements by offering investors off-balance-sheet insurance against conversion. The bond itself appears as a bail-in bond on the issuer's balance sheet while the insurance is booked off balance sheet until the bond converts. The government can deter insurance provision by imposing penalties when insurance is discovered, but these penalties may not be credible. We find conditions for an equilibrium in which insurance against conversion is provided by banks and bailed out by the government rather than penalized upon discovery. We also present new empirical evidence in support of our model.