Evaluating the Impact of Online Market Integration—Evidence from the EU Portable PC Market
构建了一个评估市场整合影响的框架，考虑了多渠道间的溢出效应，并应用于欧盟便携式电脑市场。研究发现，高收入国家消费者从价格趋同中获益最多，而其他国家消费者可能受损；总体福利增长有限，主要来自产品选择增加而非价格歧视减少。
We develop a framework to evaluate the impact of market integration, accounting for spillovers between multiple distribution channels. We adapt the standard random coefficients logit demand model to allow for substitution between channels and consumer arbitrage across countries. We apply our framework to the European portable PC market, where geoblocking practices that restrict online cross-border trade have recently been banned. Consumers in high income countries gain most from price convergence, while consumers in other countries may be worse off. The total consumer and welfare gains from online market integration are more modest and mainly due to increased product choice rather than reduced price discrimination.