Central Economics and Mathematics Institute

About: Central Economics and Mathematics Institute is a facility organization based out in Moscow, Russia. It is known for research contribution in the topics: Population & Foreign-exchange reserves. The organization has 297 authors who have published 580 publications receiving 6449 citations. The organization is also known as: Federal State Institution of Science Central Economics and Mathematics Institute of the Russian Academy of Sciences.

On Martingale Selectors of Cone-Valued Processes

Abstract: We discuss a result of Guasoni, Rasonyi, and Schachermayer on the existence of martingale selectors for a class of continuous cone-valued processes. The setting includes that arising in models of financial markets with transaction costs.

Semantic linkages in research information systems as a new data source for scientometric studies

Abstract: A growing number of research information systems use a semantic linkage technique to represent in explicit mode information about relationships between elements of its content. This practice is coming nowadays to a maturity when already existed data on semantically linked research objects and expressed by this scientific relationships can be recognized as a new data source for scientometric studies. Recent activities to provide scientists with tools for expressing in a form of semantic linkages their knowledge, hypotheses and opinions about relationships between available information objects also support this trend. The study presents one of such activities performed within the Socionet research information system with a special focus on (a) taxonomy of scientific relationships, which can exist between research objects, especially between research outputs; and (b) a semantic segment of a research e-infrastructure that includes a semantic interoperability support, a monitoring of changes in linkages and linked objects, notifications and a new model of scientific communication, and at last--scientometric indicators built by processing of semantic linkages data. Based on knowledge what is a semantic linkage data and how it is stored in a research information system we propose an abstract computing model of a new data source. This model helps with better understanding what new indicators can be designed for scientometric studies. Using current semantic linkages data collected in Socionet we present some statistical experiments, including examples of indicators based on two data sets: (a) what objects are linked and (b) what scientific relationships (semantics) are expressed by the linkages.

Solvability of Implicit Complementarity Problems

Abstract: In this paper, a new notion of exceptional family of elements (EFE) for a pair of functions involved in the implicit complementarity problem (ICP) is introduced. Based upon this notion and the Leray–Schauder Alternative, a general alternative is obtained which gives more general existence theorems for the implicit complementarity problem. Finally, via the techniques of continuous selections, these existence theorems are extended to the multi-valued implicit complementarity problems (MIPS).

The Monge—Kantorovich problems and stochastic preference relations

Abstract: A method in mathematical utility theory based on the duality theorems for the general Monge—Kantorovich problem proves to be fruitful in various parts of mathematical economics. In the present survey we give further development of that method and study its applications to closed preference relations (resp. correspondences) on a topological space (resp. between two topological spaces) and to their convex stochastic extensions on the corresponding spaces of lotteries. Among other results, we prove characterization theorems: for a functionally closed preorder (Theorem 2.1); for the corresponding strong stochastic dominance (Theorems 2.2 and 3.1); for the convex stochastic extension of an arbitrary closed correspondence between two topological spaces (Theorem 4.1).

Appropriate Economic Policies at Different Stages of Development

Abstract: This paper summarizes theoretical arguments and provides empirical evidence to support the statement that rational economic policies depend qualitatively on two factors – technological and institutional level of development of a country. We concentrate on the impact of three policies to promote the catch up development – import tariffs, increase of government revenues/spending, and the speed of foreign exchange reserves accumulation ("exchange rate protectionism"). It is shown that the impact of these policies may be positive or negative dependening on a stage of development; in each case we find threshold levels or critical combinations of GDP per capita and/or an institutional quality indicator. A theoretical model demonstrates how tariff protection and accumulation of reserves can boost long term growth in the presence of externalities.