We explore a view of the crisis as a shock to investor sentiment that led to the collapse of a bubble or pyramid scheme in financial markets. We embed this view in a standard model of the financial accelerator and explore its empirical and policy implications. In particular, we show how the...

This paper outlines a set of financial policies that can help make financial crises less likely in emerging market countries. To justify these policies, the paper first explains what a financial crisis is, the factors that promote a financial crisis and the dynamics of a financial crisis. It...

To explain the fact that government spending and tax policy are procyclical in emerging and developing countries, we develop a model for the joint behavior of optimal tax rates and government spending over the business cycle. Our set-up relies on financial frictions, which have been shown to be...

The US government has recently conducted large scale purchases of assets and implemented policies that reduced the cost of funds to financial institutions. Arguably these policies have helped to correct credit market dysfunctions, allowing interest rate spreads to shrink and output to begin a...

Credit markets typically freeze in recessions: access to credit declines and the cost of credit increases. A conventional policy response is to rely on monetary tools to saturate financial markets with liquidity. Given limited space for monetary policy in the current economic conditions, we...

In the recent financial crisis, macroeconomic stimuli produced mixed results across developed economies. In contrast, China's stimulus boosted real GDP growth from an annualized 6.2% in the first quarter of 2009 trough to 11.9% in the first quarter of 2010. Amidst this phenomenal response, land...

Aging populations in advanced economies are placing ever-increasing demands on government spending in the form of old-age benefits. Economies that have promised substantially more benefits than they have made provision to finance are heading into a prolonged era of fiscal stress. Unresolved...

How high can public debt rise without compromising fiscal solvency? We answer this question using a stochastic ability-to-pay model of sovereign default in which risk-neutral investors lend to a government that displays "fiscal fatigue," because its ability to increase primary balances cannot...

This paper studies the patterns of fiscal stimuli in the OECD countries propagated by the global crisis. Overall, we find that the USA net fiscal stimulus was modest relative to peers, despite it being the epicenter of the crisis, and having access to relatively cheap funding of its twin...

When the zero lower bound on nominal interest rates binds, monetary policy cannot provide appropriate stimulus. We show that in the standard New Keynesian model, tax policy can deliver such stimulus at no cost and in a time-consistent manner. There is no need to use inefficient policies such as...