Vendas no varejo eletrônico (via internet) nos EUA antes e depois da popularização dos smartphones. teste da hipótese de quebra estrutural.

Abstract

E-commerce has been gaining considerable space in the decisions of consumers and sellers. For the companies, the greatest advantages on e-commerce are the reduced costs associated with the broad reach of new customers, while for the consumers, the most important advantages are the convinience, the price comparison and potential cost reduction. The technological advance, the creation and popularization of smartphones certainly have contributed to the start of e-commerce as a new business practice. The purpose of this article is to analyse whether there was a change in the sales pattern on e-commerce in the USA in the period when smartphones have became popular around the world. For this we used the structural break test developed by Zeileis et al. (2002). The test result suggests that there were structural breaks in the analyzed series. The advent of the smartphone, along with the improvement of technologies, may have contributed to the change in e-commerce participation in USA retail sales.