‎In this paper‎, ‎we consider the optimal asset control of a financial company which can control its liquid reserves by paying dividends and by issuing new equity‎. ‎We assume that the liquid surplus of the company in the absence of control is modeled by the diffusion model‎. ‎It is a hot topic to maximize the expected present value of dividends payout minus equity issuance until the time of ba...

This essay will attempt, first and foremost, a definitive exposition of Marx’s theory of productive and unproductive labour.1 This theory is presented in the three volumes of Capital and in Theories of Surplus Value—Marx’s projected historico-critical fourth volume.2 This seems useful and necessary for several reasons. First, as one of the most suspect legacies of classical political economy, i...

monthly discharge is one of the most important factors considered in designs and hydrological works. some watersheds are not equipped with needed hydrometric equipment. in such a case average monthly discharge could be estimated from regional monthly water balance models of representative watersheds. in this study, thornthwaite & mather (tm) model were used in the pishkouh watershed in arid...

Everyone has to eat, so those who produce food must produce enough to feed themselves and to feed all those who do not produce their own food. Once stated. this is trivially obvious but, I will argue, making that simple relation between agriculture and the rest of the economy explicit and, at least in principle, quantifiable played a significant role in the development of economic thinking in t...

This study uses dynamic 5-bus and 30-bus test cases to explore the net surplus (congestion rents) collected and redistributed by ISOs in restructured wholesale power markets with grid congestion managed by locational marginal pricing. The price-sensitivity of demand and the learning capabilities of generators are taken as treatment factors. A key finding is that ISO net surplus substantially in...

plentifulness of oil resources on the one hand, and serious economic challenges in the course of development of the country, on the other hand, makes the optimum use of these resources a considerable issue in achieving the goals of sustainable development. iran’s experience in establishing exchange reserve account (era) during 2000-2005 indicates that its main function is saving the surplus rev...

We show uniform, linear prices in power exchange markets, such as in the Amsterdam Power Exchange (APX) DayAhead market or the Nord Pool Elspot market, that allow nonconvex, “fill or kill” block bids by market participants may not result in an equilibrium in an economic sense, nor do they maximize surplus to market participants. We propose, as an alternative, a multi-part, discriminatory pricin...

"This paper, in a comparative analysis of the Philippines and Indonesia, examines first under what conditions can migration favorably contribute to the process of economic development and then to what extent can economic growth impact upon reducing emigration pressures in these labor surplus economies. The paper also argues that there is still considerable scope for putting in place [an] agreed...

We modify the compound Poisson surplus model for an insurer by including liquid reserves and interest on the surplus. When the surplus of an insurer is below a fixed level, the surplus is kept as liquid reserves, which do not earn interest. When the surplus attains the level, the excess of the surplus over the level will receive interest at a constant rate. If the level goes to infinity, the mo...