The article presents a method of establishing efficiency of business units when a result (e.g. production, profit, income) is obtained with more than one input. This approach is a generalization of a method presented in [4]. It is based on partial efficiency isoquants in the input-productivity...

This article presents the super-efficiency model (SE-CCR), which is one of the most important modifications of the classic CCR model, and describes the main analytical capabilities of the SE-CCR model. Some of these capabilities are direct equivalents to the capabilities of the CCR model, e.g....

In standard input-oriented DEA it is assumed that the marginal productivity of inputs is constant. The efficiency changes can be achieved by proportional changes of all inputs. The author of the article considers decreasing marginal productivity of inputs and presents the appropriate...

The author suggests a “model” of relations between liquidity, costs of liquidity and basic or empirical profitability. The first part of the article present the idea of the model analysis. The author makes an effort to explain the frequent empirical paradox – when an increase of liquidity...

The article presents basic approaches to statistical estimation of the Product Life Cycle (PLC) market model: a) when data doesn’t include all phases of the cycle (incomplete data), b) when data includes all phases of the cycle. The author describes the problems with estimation of the full and...

The article describes some analytical applications of the basic DEA model – CCR model proposed by Charnes, Cooper and Rhodes [2]. The author presents elementary DEA profiles, terminology, ideas and some traditional ways of determining the optimal technology for inefficient objects and...

The Laffer curve is undoubtedly the most popular tax revenue curve. Many critics claim that the Laffer curve does not describe any real economic processes, but only represents an “ideology”. The author of the present paper shows that the Laffer curve, and, in general, the tax revenue curves,...

The article analyses the most popular methods for the empirical estimation of the relationship between bank profitability and liquidity. Owing to the fact that profitability depends on various factors (both economic and non-economic), a simple correlation coefficient, two-dimensional...

The objective of this paper is to formulate a standard set of stochastic assumptions for a prediction method which consists in a linear extrapolation of the mean empirical growth. The author shows how to derive formulas for the mean error of prediction (the ex ante prediction error). These...