What explains the large variation in the number of contacts (degree) that different participants of social networks have: age, randomness, or some unobservable quality measure? The model presented in Jackson and Rogers (2007), which emphasizes age as the main source of variation, successfully...

The returns to skills and the nature of work differ systematically across labor markets of different sizes. Prior research has pointed to worker interactions, technological innovation, and specialization as key sources of urban productivity gains, but has been limited by the available data in...

There is substantial within-industry variation, even within industries that use and produce homogeneous inputs and outputs, in the prices that plants pay for their material inputs. I explore, using plant-level data from the U.S. Census Bureau, the consequences and sources of this variation in...

We introduce new measurement tools to understand the sources of earnings differences across space. Based on the natural language employers use in job vacancy text, we develop granular measures of job tasks and of worker specialization. We find that jobs in larger commuting zones involve greater...

We investigate the impact of a set of place-based subsidies introduced in Turkey in 2012. Using firm-level balance-sheet data along with data on the domestic production network, we first assess the policy's direct and indirect impacts. We find an increase in economic activity in...

We investigate the impact of a set of place-based subsidies introduced in Turkey in 2012. Using firm-level balance-sheet data along with data on the domestic production network, we first assess the policy’s direct and indirect impacts. We find an increase in economic activity in...

This paper attempts to quantify the benefits associated with operating a liquidity-saving mechanism (LSM) in Fedwire, the large-value payment system of the Federal Reserve. Calibrating the model of Martin and McAndrews (2008), we find that potential gains are large compared to the likely cost of...

This paper attempts to quantify the benefits associated with operating a liquidity-saving mechanism (LSM) in Fedwire, the large-value payment system of the Federal Reserve. Calibrating the model of Martin and McAndrews (2008), we find that potential gains are large compared to the likely cost of...

This paper considers the welfare effect of introducing a liquidity-saving mechanism (LSM) in a real-time gross settlement (RTGS) payment system. We study the planner's problem to get a better understanding of the economic role of an LSM and find that an LSM can achieve the planner's allocation...