We use an extended version of the well-established Crepon, Duguet and Mairesse model (1998) to model the relationship between appropriability mechanisms, innovation and firm-level productivity. We enrich this model in several ways. First, we consider different types of innovation spending and...

The combinatorial clock auction is becoming increasingly popular for large-scale spectrum awards and other uses, replacing more traditional ascending or clock auctions. We describe some surprising properties of the auction, including a wide range of ex post equilibria with demand expansion,...

British general incorporation law granted companies an extraordinary degree of contractual freedom to craft their own governance rules. It provided companies with a default set of articles of association, but incorporators were free to reject any part or all of the model and write their own...

Urban economies are often heavily reliant on a small number of dominant industries, leaving them vulnerable to negative industry-specific shocks. This paper analyzes the long-run impacts of one such event: the large, temporary, and industry-specific shock to the British cotton textile industry...

This paper documents that rotation group bias -- the tendency for labor force statistics to vary systematically by month in sample in labor force surveys -- in the Current Population Survey (CPS) has worsened considerably over time. The estimated unemployment rate for earlier rotation groups has...

With malls, franchise strips and big-box retailers increasingly dotting the landscape, there is concern that middle-class jobs in manufacturing in the U.S. are being replaced by minimum wage jobs in retail. Retail jobs have spread, while manufacturing jobs have shrunk in number. In this paper,...

We explore the extent to which composition, duration dependence, and labor force non-participation can account for the sharp increase in the incidence of long-term unemployment (LTU) during the Great Recession. We first show that compositional shifts in demographics, occupation, industry,...

An analogy has been made between the collapse of the Bretton Woods system in 1971 and the recent Eurozone crisis. The build up of TARGET balances in the Eurosystem of Central Banks after 2007 with the GIPS (deficit countries having large liabilities) and Germany (a surplus country) with large...

Treasury bills and other near-money assets provide owners with liquidity service benefits that are reflected in prices in the form of a liquidity premium. I relate time variation in this liquidity premium to changes in the opportunity cost of money: The liquidity service benefits of near-money...

We present a simple graphical framework to illustrate the potential welfare gains from a "top-up" health insurance policy requiring patients to pay the incremental price for more expensive treatment options. We apply this framework to breast cancer treatments, where lumpectomy with radiation...