We develop and estimate a theory-consistent gravity model for interregional migration flows in the presence of … equation for bilateral mobility that embodies a co-determined local unemployment term. As a theory of migration, our model …

This paper reports results from a laboratory experiment on network formation among heterogeneous agents. The … experimental design extends the Bala-Goyal (2000) model of network formation with decay and two-way flow of benefits by allowing … private information. In all treatments, the (efficient) equilibrium network has a "star" structure. With homogeneous agents …

Recruiting agents, or "programs" costly screen "applicants" in matching processes, and congestion in a market increases … costs can be used as a Pigouvian tax. Higher costs reduce congestion by discouraging applicants from applying to certain … experimental and structural estimates show that a (low) application cost effectively reduces congestion without harming match …

and wages move in the same direction under neo-classical assumptions, agglomeration economies in production, congestion in … congestion in production or the agglomeration in consumption models. The micro-economics of such consumption … thus suggest that consumption-oriented agglomeration and congestion should receive more attention in the future …

" congestion (LC) – where MC > AC and both increase with output. I identify two additional congestion categories, "high" (HC) and … "super" (SC) congestion – where AC is backward-bending and MC < 0. Using a general equilibrium model, I derive the open …

When workers send applications to vacancies they create a network. Frictions arise because workers typically do not … friction affects network formation, while the second coordination friction affects network clearing. We show that those … that can arise and the number of matches on a given network. Equilibria that exhibit wage dispersion are inefficient in …