Attitudes of retailers towards cross-border trade. Knowledge regarding consumer legislation. Topics: interest in starting or intention to continue to sell online in the next twelve months to consumers: in the own country, in other EU countries, both; confidence regarding selling online to consumers: in the own country, in other EU countries, both; companies already practicing online selling were asked: importance of selected obstacles to the development of online sales to other EU countries: differences in national tax regulations, in national consumer protection rules, and in national contract law, higher costs of cross-border delivery compared to domestic delivery, higher costs in resolving complaints and disputes cross-border, higher fr...