Online marketplace designers frequently run A/B tests to measure the impact of proposed product changes. However, given that marketplaces are inherently connected, total average treatment effect estimates obtained through Bernoulli randomized experiments are often biased due to violations of the...

Price dispersion - firms charging different prices for the same product - is widely observed in both online and traditional offline markets. While most price dispersion is explained by stylized clearinghouse models such as Varian (1980), these models do not explain why prices in offline markets...

The Internet provides consumers with unprecedented amounts of product information. Although the competitive implications of better-informed consumers have been extensively studied, little attention has been paid to the impact of information on overall consumer demand. In this paper, we estimate...

The paper deals with an analysis of factors influencing the acceptance of the seven major payment methods (i.e. cash on delivery, bank transfer, online payment integrator, payment in person, pay-by-link, card payment and virtual payment provider) by the Polish online shops. Our research was...