In the competitive market of B2B e-commerce website, as customer switching cost and network externality could prevent customers to switch to later entrant, the earlier entrant has the advantage to build and retain its market share. However, the declining cost of information technology (IT) over time provides the later entrant a cost advantage. In order to maintain competitive advantage, what sh...

In the competitive market of B2B E-commerce platform, the former entrant has the advantage of switching cost while the later entrant has the advantage of declining IT cost. Considering the variable investment cost due to the improvement of platform quality, the paper develops an IT investment model to investigate the best investment strategy for B2B E-commerce platform under the impact of switc...

stock selection criteria play a key role in contrarian portfolio construction. the usual approach is applying cumulative return as stock selection criteria however applying this criterion leads to ranking stocks without considering investment risk. in this study, we analyze contrarian strategies that are based on reward–risk stock selection criteria in contrast to ordinary contrarian strategies...