Manufacturer Collusion and Resale Price Maintenance*
研究转售价格维持如何帮助制造商在零售商有替代选择时实现合谋，通过提高零售利润来维持更高的批发价格。
We provide a novel theory of harm for resale price maintenance (RPM). In a model with two manufacturers and two retailers, we show that RPM facilitates manufacturer collusion when retailers have alternatives to selling a manufacturer's product. Because of the alternatives, manufacturers can only ensure that retailers sell their products by leaving sufficient retail margins. This restricts the wholesale price level even when the manufacturers collude. RPM allows colluding manufacturers to establish higher prices.