in the research we try to introduce “network matrix” in selecting optimizing portfolio for active management in investment companies, to evaluating obtained portfolio of this, with this aim that have high efficiency in relation to market portfolio efficiency. first matrix (portfolio) is value-growth stocks that are classified by standards p/e and p/b and second matrix (portfolio) are an aggress...

a r t i c l e i n f o This paper aims to offer new theoretical and empirical insights into power dynamics in an industrial supplier workshop setting. Theoretically, it advances an institutional perspective on supplier workshops as an important venue in managing, preserving and instituting industrial market power. Based on a detailed ethnographic analysis of an industrial workshop setting, this ...

In order to stabilize the global climate the world’s governments must make significant commitments to drastically reduce global greenhouse gas (GHG) emissions. One of the most promising methods of curbing GHG emissions is a world transition from fossil fuels to renewable sources of energy. Solar photovoltaic (PV) cells offer a technically sustainable solution to the projected enormous future en...

As part of the energy assistance program to help Ukraine shut down the Chornobyl nuclear reactors, the U.S. Department of Energy (DOE) asked the Pacific Northwest National Laboratory (PNNL) to identify and appraise industrial energy efficiency projects in Ukraine. The industrial sector currently accounts for over 60% of Ukraine’s energy consumption. Most industrial enterprises in Ukraine use en...

Development economists argue that trade protection reduces industrial sector efficiency, mainly through the distortion in relative prices, increased market power, x-inefficiency and inefficient scales of production. Nevertheless there is no convincing evidence on the link between trade reforms and improvement in economic performance. This work examines the case of Uruguay, an economy that intro...

abstract the main aim of the paper is to determine the marketing efficiency of poultry industry in karaj. in this research the marketing margin and the marketing efficiency of poultry market in different level of the market in karaj was calculated. the results showed that slaughter houses gain the main part of marketing margin and marking profit. the share of slaughter house was more that 50 pe...

The interest in predicting stock prices or returns is probably as old as the markets themselves, and the literature on the subject is enormous. Fama (1970) reviews early work and provides some organizing principles. This chapter concentrates selectively on developments following Fama's review. In that review, Fama describes increasingly fine information sets in a way that is useful in organizin...

The paper focuses on markets in which firms with different ownership structures compete with each other in a one-period Nash-Cournot setting. In particular the market outcome of a duopoly of one marketing cooperative and one private wholesaler (cooperative mixed duopoly) is compared to the outcomes of a public firm mixed duopoly and a pure private duopoly. None of these market arrangements are ...