DEA by sequential exclusion of alternatives
The monograph discusses theoretical and practical approaches to economic effectiveness and efficiency of information systems (IS) estimation in Russian economy. First, the book considers modern theoretical results. Firm level empirical tests of IT and IS influence on productivity, such as estimation of computer capital impact on productivity; lagged effects of IT, complementary relations between computer, organization and human capital are of special interest.
The author tested some hypotheses on samples of Russian firms. For example, positive effect of computer capital on productivity was tested on a sample of 200 firms. Complementary relations between computer and organizational capital were investigated on some cases of Russian firms.
Theoretical advances enabled improvement of IT effectiveness estimation in practice. For this author purposes a number of new instruments such as map of organizational practice, extended matrix of change, a set of models for allocating IT costs across IT services within the firm. Existing methodologies of IT economic effectiveness and efficiency analysis are discussed as well.
Author acknowledges Michail Lugachyov, Chief of the Economic faculty IS economics department for consistent support of this research and important comments, Konstantin Zimin for access to unique set of data on IT expenses in Russian firms, Vladimir Ananyin and Pavel Alfyorov for useful discussions.
In the present paper we have hypothesized an explanation for the fact that the evaluation
of the social impact of law is modeled predominantly by the economic efficiency concept.
Considering the early stages of the concept’s development, we try to make it more
intelligible to the European lawyers.
Electron bunching processes in a carcinotrode (backward_wave oscillator with self_modulation of electron emission) operating in the high_efficiency regime determined previously are investigated. The possibility of obtaining an efficiency of about 80% is explained from the physical viewpoint.
There is by now a large literature arguing that auctions with a variety of after-market interactions may not yield an efficient allocation of the objects for sale, especially when the bidders impose strong negative externalities upon each other. In this note, we argue that these inefficiencies can be avoided by asking bidders prior to the auction to submit any publicly observable payment they would like to make. These payments, so-called flexible entry fees, do not affect the allocation decision of the auctioneer. We show that auctions with flexible entry fees have a fully revealing equilibrium where bidders signal their type before the auction itself takes place.
We estimate efficiency scores for Russian universities based on data set of input and output criteria by using Data Envelopment Analysis. In addition, we use a reputation index as another indicator of a university’s productivity. To construct it, 4000 contexts are analyzed and 13 reputation criteria are found. The threshold procedure is used to aggregate them into a reputation indicator. Factors which lead a university to be efficient are studied.
The main purpose of this monograph is to identify the key factors of risk man- agement efficiency of firm, whose management is able to increase the investment attractiveness of the business in general, as well as the formation of an effective or- ganizational risk management model that allows, on the one hand - to provide reliable protection for companies against unexpected losses, on the other hand - to make a risk management tool for the creation of corporate value. This monograph presents the organization of risk management in accordance with the latest regulatory require- ments. In the monograph authors provide a developed methods for evaluating the effectiveness of existing mechanisms of risk management, based on a representative theoretical review of the scientific literature of leading researchers in the field of risk management and internal control. In addition, an algorithm for evaluating the econom- ic and investment efficiency of the risk management is given, that takes into account the existing methods of performance evaluation, as well as recommendations on the organization of internal compliance as a tool ensuring the consistency of individual and corporate interests of the company. Most of the conclusions and positions pre- sented in the book, confirmed by empirical calculations on the example of Russian and international companies.