We develop a new distance-based test of localized knowledge spillovers that embeds the concept of control patents. Using microgeographic data, we identify localization distance for each technology class while allowing for spillovers across geographic units. We revisit the debate by Thompson and...

The existence of localized knowledge spillovers found by Jaffe, Trajtenberg and Henderson (1993) has recently been challenged by Thompson and Fox-Kean (2005). To settle this debate, we develop a new approach by incorporating their concepts of control patents into the distance-based test of...

We develop a new approach to localized knowledge spillovers by incorporating the concept of control patents (Jaffe, Trajtenberg and Henderson 1993) into the distancebased test of localization (Duranton and Overman, 2005). Using microgeographic data, we identify localization distance while...

We develop a new approach to localized knowledge spillovers by incorporating the concept of control patents (Jaffe, Trajtenberg and Henderson 1993) into the distance-based test of localization (Duranton and Overman, 2005). Using microgeographic data, we identify localization distance while...

It has been argued in the economic literature that job search through informal job networks improves the employer-employee match quality. This paper argues that inventors' research collaboration networks reduce the uncertainty of firms about the match qualities of inventors prior to hiring. We...

It has been argued in the economic literature that job search through informal job networks improves the employer-employee match quality. This paper argues that inventors' research collaboration networks reduce the uncertainty of firms about the match qualities of inventors prior to hiring. We...

Observed spatial wage disparities reflect not only disparities in regional productivity but also an uneven geographical distribution of heterogeneous worker skills. We measure spatial skill disparities in Japan and evaluate how migration contributes to these disparities. For this purpose, we...

In this paper, we analyze the optimal structure of a monocentric city that has multiple jurisdictions. The cost of providing a public good depends on both the area of the jurisdiction and the quality of the service, both of which are endogenous variables. We show that the optimal quality of the...

This paper investigates the location choices of firms and workers, and the implied commuting behavior, in a city comprising several jurisdictions. Jurisdictions are geographically represented by segments that are connected to each other at the center. Each jurisdiction has its own amenities....