Mergers lead to larger firms and a less competitive market structure, but their effects on innovation are not clear. Mergers may improve innovation incentives by promoting economies of scope and scale, R\&D activities, and increasing the ability to deal with uncertainties. However, mergers may...

Improving shareholder value has often been cited as a merger determinant. Since mergers create larger firms and less competition, they may increase shareholder value through higher market share and stock-market value. We investigate merger impacts on firms' stock-market value and market share....