Extreme heat is the single best predictor of corn and soybean yields in the United States. While average yields have risen continuously since World War II, we find no evidence that relative tolerance to extreme heat has improved between 1950 and 2005. Climate change forecasts project a sharp...

This paper examines the relationship between spot and futures prices for a broad range of commodities, including energy, precious and base metals, and agricultural commodities. In particular, we examine whether futures prices are (1) an unbiased and/or (2) accurate predictor of subsequent spot...

We consider the effects of central-bank purchases of a risky asset, financed by issuing riskless nominal liabilities (reserves), as an additional dimension of policy alongside "conventional" monetary policy (central-bank control of the riskless nominal interest rate), in a general-equilibrium...

I survey the literature on monetary policy at the zero lower bound (ZLB) and effective lower bound (ELB) to make three main points: First, the Federal Reserve's forward guidance and large-scale asset purchases are effective monetary policy tools at the Z/ELB. Second, during the 2008–15 U.S....

Monetary policy affects the real economy in part through its effects on financial institutions. High frequency event studies show the introduction of unconventional monetary policy in the winter of 2008-09 had a strong, beneficial impact on banks and especially on life insurance companies. I...

I argue in this paper that one of the two forms of hitherto unconventional monetary policy that many central banks have implemented in response to the 2007 financial crisis - large-scale asset purchases, or to put the matter more generically, use of the central bank's balance sheet as a distinct...

This paper compares the effects of conventional monetary policy on real borrowing costs with those of the unconventional measures employed after the target federal funds rate hit the zero lower bound (ZLB). For the ZLB period, we identify two policy surprises: changes in the 2-year Treasury...

We examine the first QE program through the lens of an open-market operation under taken by the Federal Reserve in 1932, at the height of the Great Depression. This program entailed large purchases of medium- and long-term securities over a four-month period. There were no prior announcements...

We introduce liquidity frictions into an otherwise standard DSGE model with nominal and real rigidities and ask: Can a shock to the liquidity of private paper lead to a collapse in short-term nominal interest rates and a recession like the one associated with the 2008 U.S. financial crisis? Once...

We first show that, at least in theory, open market operations in real assets can be a useful tool for overcoming a liquidity trap because they change the inflation incentives of the government, and thus change private sector expectations from deflationary to inflationary. We argue that this...