E-commerce is a global phenomenon that reshapes retailing and the appropriate multinational corporations. The goal of this study is to get a better understanding of the relationship between online customer reviews (OCRs), sales and sales after returns in the cross-national and cross-cultural context. We discuss our hypotheses by empirically analyzing a large and unique data set from a European fashion e-commerce company. This study links a wide range of transaction data (0.8 billion page clicks, 17 thousand different products, 499 brands, 50 product categories, 22 million sold and 11 million returned items) from six different countries (Austria, France, Germany, Italy, Netherlands, Poland) with a large set of OCRs (0.7 million). Our results show that positive OCRs can lead to higher sales and sales after returns with considerable cross-country differences. We argue that differences in culture provide a substantial explanation for these effects by using Hofstede's cultural framework.

• Tobias Maximilian Lohse(RWTH Aachen University, Germany)
• Jan Kemper(RWTH Aachen University, Germany)
• Malte Brettel(RWTH Aachen University, Germany)