function with a timevariable stochastic efficiency term we show that positive scale and scope effects from a merger arise only … efficiency as the acquiring firms. For the post-merger phase, our empirical results provide no evidence for efficiency gains from …

The main subject of theoretical-empirical study presented in this paper is economic efficiency of companies listed on … essence and assessment measures of companies' economic efficiency. The second part presents the results of a comparative … empirical research on economic efficiency of the companies listed on the Warsaw Stock Exchange and included in the WIG30 index …

there is a tradeoff as to efficiency and inequality with respect to services that are contracted to private companies in a …