This article relates corporate credit rating quality to competition in lending between the public bond market and banks. In the model, the monopolistic rating agency's choice of price and quality leads to an endogenous threshold separating low-quality bank-dependent issuers from higher-quality...

Can the freedom to choose how retirement funds are invested leave workers worse off? We analyze social risks of allowing choice, using the Social Security system as an example. Comparing a privatized alternative with the current system via simulation, we document that choice in both equity...

Young firms disproportionately employ young workers, controlling for firm size, industry, geography and time. The same positive correlation between young firms and young employees holds when we look just at new hires. On average, young employees in young firms earn higher wages than young...

The 2003 Northeast Blackout revealed vulnerabilities within the US electric power-grid system. With the economy so dependent on electric power for most aspects of life, a power-grid failure can have far-reaching higher-order effects and can impair the operability of other critical...