Help within genetically related and unrelated organisms as well as investments of investors holding shares to different degree including charity can be understood within the ensemble concept. In an ensemble transfer of substrate from a source to a sink may result in superadditivity as well as...

This study analyzes a continuous-time N-agent Brownian hidden-action model with exponential utilities, in which agents' actions jointly determine the mean and the variance of the outcome process. In order to give a theoretical justi¯cation for the use of linear contracts, as in Holmstrom and...

This study uses a multi-output multi-input Data Efficiency Analysis (DEA) to estimate the performance of all thirty-two participated football teams in the UEFA Champions League (CL) tournament 2005-06. The estimates are based on official match statistics from all 125 matches.

We study how ownership structure and management objectives interact in determining the company size without assuming information constraints or explicit costs of management. In symmetric agent economies, the optimal company size balances the returns to scale of the production function and the...

Knowledge has been defined as a major resource for development. Especially countries without natural resources have found this idea attractive and have embarked on development strategies to develop a knowledge-based economy. In doing so they may fall into a “knowledge trap”. The paper...

In the present global economy, strongly influenced by IT (information technology) and information systems evolution, the modern organizations try to face the challenges by adjusting their strategies and restructuring their activities, for aligning them to the new economy requirements. It is...