Organizaciju vadyba: sisteminiai tyrimai Nr. 30

This publication presents summarized macro analysis of gross product of mixed economy, aggregate demand, aggregate supply, consumption, saving, investments, macroeconomic balance and multiplication effect. Some of the problems of macro analysis of mixed economy are raised and ways of their solution are searched for.

Keywords: Gross product of mixed economy; consumption, saving and investments in mixed economy; macro balance of mixed economy; multiplication effect in mixed economy.

JEL Classifications: E01/E12/E21/E22

INDUSTRIAL AND PRODUCTION ECONOMICS

Inga MAKSVYTIENĖ

ECONOMIES OF SCALE AND COMPETITIVENESS OF AN ENTERPRISE

The aim of the research is to introduce the role of enterprise scale under the conditions of competition. In the article the theoretical model of scale economies and diseconomies interaction influence on the competitive ability of the enterprise enabling to evaluate this influence is presented.

Keywords: competitive advantages of enterprise, scale economies, scale diseconomies.

JEL Classifications: F12/L25

LABOR AND DEMOGRAPHIC ECONOMICS

Bronislovas MARTINKUS, Daiva BERŽINSKIENĖ

IDENTIFICATION OF RATE CHANGES IN LABOUR MARKET

The paper deals with the identification of the rate changes in the labour market and its estimation problems as well as the identification methods of dynamic rate changes.

Keywords: labour market, employment, model of employment estimation, model of the integrated macroeconomic indicator.

JEL Classifications: E24/E10

Violeta PUKELIENĖ, Rasa GLINSKIENĖ, Daiva BERŽINSKIENĖ

LABOUR MIGRATION: GLOBAL ASPECT

The article deals with the theoretical labour migration presumptions and the theoretical labour migration model, demonstrating the benefits for both the countries and the migrants. The dynamics of the internal and external migration and the survey of the factors preconditioning it are presented, the migration tendencies on the global as well as Lithuanian level are analysed.

Keywords: labour force, labour force migration, migration theory, globalization, global migration.

JEL Classifications: F22/J2

FINANCE AND FINANCIAL ECONOMICS

Valdonė DARŠKUVIENĖ, Paulius VAZNIOKAS

CORPORATE GOVERNANCE SYSTEM: MICROECONOMICAL ASPECT

The paper provides systemic view on corporate governance, joining managerial, legal and economic approaches. Concepts of corporation and corporate governance are analyzed, defining elements and characteristics of corporate governance, which determine development of specific models.

Keywords: corporation, corporate governance, corporate governance models, ownership, control, economic benefit.

JEL Classifications: G3/G34/J5/P2/P3

Alexander MAKIENKO

ANALYSIS OF INVESTMENT SERVICES MARKET IN LATVIA

The article gives overview of emerging Latvian investment services market. Different sub sectors are examined to identify individual trends influencing development of single activities and a broader vision of the whole market is given as well.

Keywords: investment services, asset management, mutual funds, pension funds, employee motivation

JEL Classifications: G11/G22/G23/G24

ENVIRONMENTAL AND RESOURCE ECONOMICS

Dalius TARVYDAS

MONETARIZATION OF EMISSION PERMITS IN LITHUANIA POWER MARKETS

This article is focused on analysis how effected CO2 emissions, structure of electricity supply and security of energy supply would be in Lithuania, if no free emission permits were distributed in the energy sector. Calculations are performed by applying modeling tool MESSAGE.

Keywords: emissions permits, emissions permits distribution, CO2, greenhouse gases, modeling, optimization models, Lithuania.

JEL Classifications: N74/O13/C61/H23

MATHEMATICAL AND QUANTITATIVE METHODS IN ECONOMICS

Gundars BERZINS, Nicholas A. NECHVAL, Maris PURGAILIS, Konstantin N. NECHVAL, Natalia ZOLOVA

OPTIMAL MULTIPERIOD PROJECT PORTFOLIO INVESTMENT UNDER UNCERTAINTY

The authors present a mathematical model of investment for a set of projects under conditions of uncertainty. The model addresses the problem of an investor with access to a limited pool of capital that makes decisions on investment. They discuss optimal investment decisions for the cases where the return from investment is a random variable. The single-period and multiperiod cases of investment decisions are considered. The paper presents closed form solutions for commonly adopted utility functions.

Keywords: project, portfolio, multiperiod investment, optimal control.

JEL Classifications: G11/C4