In a provocative paper, Galí (2014) showed that a policymaker who raises interest rates to rein in a potential bubble will only make a bubble bigger if one exists. This poses a challenge to advocates of lean-against-the-wind policies that call for raising interest rates to mitigate potential...

The Eurozone is in the midst of a deep crisis. We argue that the attempts to control government deficits and debts using the Stability and Growth Pact have failed. Moreover, austerity policies are inducing downward spirals in terms of growth. Political leaders have promised deeper political,...

In a financial market where traders are risk averse and short lived, and prices are noisy, asset prices today depend on the average expectation today of tomorrow's price. Thus (iterating this relationship) the date 1 price equals the date 1 average expectation of the date 2 average expectation...

Bubbles where asset prices rise and then collapse are often followed by financial crises where default is widespread. A simple theory of bubbles based on an agency problem is developed. Investors use money borrowed from banks to invest. Risky assets are relatively attractive because investors...

The returns of assets that are traded on financial markets are more volatile than the returns offered by intermediaries such as banks and insurance companies. This suggests that individual investors are exposed to more risk in countries which rely heavily on financial markets. In the absence of...

Stock returns of domestically listed Chinese firms are lower than that of externally listed firms and listed firms from large developed and emerging countries. The performance gap, measured by net cash flows, between domestically listed and externally listed and matched unlisted Chinese firms,...

At the end of January 2021, a group of stocks listed on US stock exchanges experienced sudden surges in their stock prices, which - coupled with high short interest – led to brief short squeeze episodes. We argue that these short squeezes were the result of coordinated trading by retail...

On October 26, 2008, Porsche announced a largely unexpected domination plan for Volkswagen. The resulting short squeeze in Volkswagen's stock briefly made it the most valuable listed company in the world. We argue that this was a manipulation designed to save Porsche from insolvency and the...

This introduces the symposium on financial economics.

Financial contagion is modeled as an equilibrium phenomenon. Because liquidity preference shocks are imperfectly correlated across regions, banks hold interregional claims on other banks to provide insurance against liquidity preference shocks. When there is no aggregate uncertainty, the...