Fixed point theorems are the standard tool used to prove the existence of equilibria in mathematical economics. This paper shows how to prove a slight generalization of Brouwer's and Kakutani's fixed point theorems using the familiar techniques of drawing and shifting curves in the plane and is,...

"This paper will introduce new methods to estimate the two-way fixed effects model and the match effects model in datasets where the number of fixed effects makes standard estimation techniques infeasible. The methods work for balanced and unbalanced panels and increase the speed of estimation...

"The IAB Establishment Panel contains no direct information on establishments' capital stock. This report presents some advice in implementing a capital stock approximation by the perpetual inventory method as proposed by Müller (2008). STATA code is provided in the appendix." (Author's...

We propose and axiomatically analyze a class of rational solutions to simple allocation problems where a policy-maker allocates an endowment <InlineEquation ID="IEq1"> <EquationSource Format="TEX">$$E$$</EquationSource> </InlineEquation> among <InlineEquation ID="IEq2"> <EquationSource Format="TEX">$$n$$</EquationSource> </InlineEquation> agents described by a characteristic vector c. We propose a class of recursive rules which mimic a decision process where the...</equationsource></inlineequation></equationsource></inlineequation>

In the article investigational method of diagnostics of efficiency of controlling of business processes, resulting in its implementation it is possible to identify deficiencies controlling systems. The essence of this method is compared to the controlling systems with a reference value.