Monopsony in Spatial Equilibrium

Alan Manning : Monopsony in Motion

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Local Monopsony and Free Riders

In an industry with upstream economies of scale in the distribution of differentiated products to retailers which have monopoly power within separate local market areas, the retailers have an incentive to exert monopsony power due to the divergence between average and marginal costs in the distribution of those inputs. The retailers increase their ability to exert monopsony power by forming coa...

Spatial Price Equilibrium

Classic Monopsony or New Monopsony? Searching for Evidence in Nursing Labor Markets

Prior studies find that hospitals face upward-sloping RN labor supply, which is taken as evidence of monopsonistic power. But previous research finds little relationship across labor markets between RN wages (relative to alternative wages) and measures of market size or hospital density. This inconsistency might be resolved if “classic” monopsonistic power varies over time owing to demand-suppl...

Spatial Equilibrium Models with Gams

This document gives a short introduction into Spatial Equilibrium modeling with GAMS. 1. Intertemporal-Spatial Price Equilibrium Solving spatial equilibrium models by mathematical programming is pioneered by [9],[12], [11], and [13]. One of the most basic forms is the transportation problem, also known as the “Koopmans-Hitchcock” model. An example is found in the GAMS model library in trnsport....