Mergers and acquisitions (M&As) have become a more and more important topic in the management and development of companies. Companies usually conduct M&A to preserve or extend their competitive advantages. However, M&As usually fail in real life. For the given bidder company, a critical step to...

A number of studies have used data envelopment analysis (DEA) to evaluate the performance of the countries in the Olympic Games. In this paper, an extension tool of DEA, namely cross-efficiency evaluation method, is used to measure the performance of the nations participating in the Summer...