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Savings-Investments Relationship in an Open Economy
Florin-Marius PAVELESCU
Revista Romana de Economie , 2009,
Abstract: This paper reviews the conceptual-theoretical framework related to the analysis of the savings-investments relationship in an open economy and reveals the main trends of the respective relationship in the consolidated market economies and emerging countries during the second part of the 20-th century and first decade of the 21-st century. In this context, the author proposes some improvements in the savings-investments relationship analysis methodology, emphasizing the role of the foreign trade balance stock on the values of discrepancy between the savings and investments and of the Feldstein-Horioka econometric model estimated parameters. The respective methodological improvements are applied in the case of Romania for the period 1990-2007. At the end of the paper some guidelines for the savings-investments relationship modeling are presented in order to avoid recession and assure the premises for a sustainable economic growth.
On the Development of Economy, Science and Technology  [cached]
Ning Jin
International Journal of Business and Management , 2009, DOI: 10.5539/ijbm.v4n6p189
Abstract: The advance in global economy promotes the development of science and technology, which propels the former in return. The development of economy as well as science and technology has promoted global competition and encouraged people to develop economy, science and technology in order to get out of crisis. As a result, the development of science and technology will promote the diversification of economy and global exchanges. This article is divided into two parts--- the challenges and opportunities in the development of economy as well as science and technology and their development. In order to develop economy, science and technology, we must broaden our minds to deal with challenges and opportunities.
Piketty’s Capital-Income Theory Reconsidered for a Small Open Economy with Increasing Savings Rate  [PDF]
Yasunori Fujita
Open Journal of Statistics (OJS) , 2016, DOI: 10.4236/ojs.2016.61004

Since Piketty offered a new view of capital/income ratio, numerous attempts have been made to examine the relationship between return on capital, economic growth and the capital/income ratio. This paper attempts to shed new light on this field. More precisely, following recent literatures that pay attention to dynamics of external balance sheets of countries, we examine if Piketty’s results for large countries are robust for a country that takes the world rate of return on capital as given and whose savings rate increases gradually from negative value. It is revealed that for such a country, (1) Kuznets curve is drawn and (2) capital/income ratio decreases in accordance with a rise in savings rate and return on capital.

Toplinska analiza procesa - I. Sinteza mre e izmjenjiva a topline pinch-postupkom  [PDF]
Matija?evi?, Lj.
Kemija u Industriji , 2006,
Abstract: In the last twenty-five years in the chemical process industry an important point of interest has been, how to minimize total costs, i.e. capital and operating costs expressed as annual charges.Pinch method is thermodynamically oriented method for the synthesis of heat exchanger networks with extended to combined heat and power system, separation schemes, integrated distillation columns and general process design. There have been two schools of the heat exchanger network synthesis. One relies on thermodynamic principles where the designer manually or interactively if software is available, synthesizes the network.The heat exchanger network of a nitric acid plant has been studied and it was found that it is possible to reduce requirements for cooling water and medium pressure steam. In order to enable these savings, three heat exchangers should be replaced with new ones. Energy consumption insteam power system increases slightly. However, the final result is a reduction of energy costs and a payback time of 14.5 months.The other approach relies on mathematical methods like linear and nonlinear programming. In this work thermodynamically oriented method is presented for the synthesis of heat exchanger network.
Application of an Optimum Design of Cooling Water System by Regeneration Concept and Pinch Technology for Water and Energy Conservation  [PDF]
A. Ataei,M.H. Panjeshahi,R. Parand,N. Tahouni
Journal of Applied Sciences , 2009,
Abstract: In this study, using a combination of Pinch Technology and Mathematical Programming, a new technique is presented in order to grass-root design for a cooling water system to achieve minimum total annual cost. The presented technique is further improved by using patterns from the concept of regeneration recycling in water systems; in a sense that cooling water is regenerated locally by an air cooler. Moreover, in the proposed method, optimum design of cooling tower has been achieved through a mathematical model. Related coding in MATLAB version 7.3 was used for the illustrative example to get optimal values in the proposed cooling water design method computations. The result of the recently introduced design methodology was compared with the conventional and Kim and Smith design methods. The outcomes indicate that by using this new design method, more water and energy can be saved and a lower level of total annual cost can be reached.
Carlos Eduardo Borba,Aparecido Nivaldo Modenes,Fernando Rodolfo Espinoza-Quinones,Guilherme Bazarin
Engevista , 2011,
Abstract: In this paper, a case study of energy integration in extraction phase in a soybean oil factory was performed. Based on the thermal potential change, two hot and two cold currents were selected from a set of streams of soybean oil extraction phases. A first hot current (Q1) transports crude oil with 110 and 80oC as input and output temperatures, respectively, while the second one (Q2) transports water that comes out from a boiler with a 90°C input temperature and it needs to be reduced to 55°C output temperature. A first cold current (F1) transports water that comes out from a decanter and it needs to be heated from 40 to 90°C, while the second one (F2) transports a oil-hexane (70% - 30%) mixture with 60°C input and 90°C output temperatures. The Pinch Analysis was chosen as a synthesis methodology for the heat exchanger network synthesis. A cost analysis was carried out, verifying a 79,6% steam consumption economy, after the pinch analysis-based energy integration, performing a 77,5% (5.3% overall consumption of plant) annual total cost reduction and showing a utilities investment return on three months.
Influence of Macroeconomic Factors on Dynamics of National Savings  [PDF]
L. Kukhtiy,K. Vorobyova
Economics of Development , 2011,
Abstract: National savings as a basic investment resource are viewed in modern economic literature not only at the level of national economy but at the level of world economy as well.When the income level is decreased people do not reduce the consumption level but they reduce their level of savings.Having analysed this problem, the following conclusion can be drawn:savings can be negative when income level is low under the condition that the previous income level was higher than the current one;in a short run, by increasing income savings grow in an absolute as well as in a relative expression;in a long run, by increasing income savings grow only in an absolute expression and in a relative expression they remain stable (norm of savings is a ratio of the part of income that is saved to the income itself).Factors that may have influence on the norm of net national savings are as following:Monetization index as a ratio of a monetary aggregate M2 to GDP;Growth rate of GDP per capita;Consumer Price Index;Effective rate of interest;Currency exchange rate;Balance of payments;Level of unemployment;Part of population over 60 years old.
Time-Resolved Measurement Technology for Z Pinch

JIANG Xiao-guo,YANG Li-bing,HUANG Xian-bin,LI Cheng-gang,GU Yuan-chao,ZHOU Rong-guo,OUYANG-kai,LI Jun,ZHANG Si-qun,YANG Liang,ZHOU Shao-tong,ZOU Jie,WANG Xiong,

光子学报 , 2007,
Abstract: A time-resolved framing photography has been set up,which characterizes exposure time of about 3ns and interframe time of 10ns.It can capture up to 8 frame images at once.The technology is a combination of high speed electronics,image intensifier technology and optical splitter technology.The shutter in the system are structured by 8 MCPs and the time-resolved desire can be met by controlling the shutters sequentially.The images captured by this time-resolved framing photography characterize high definition,abundant spatial information.The evolutive course of Z pinch imploding plasma has been recorded clearly and the latest results will be displayed.
Joannis Papavassiliou
Physics , 1995,
Abstract: Some of the most important theoretical and phenomenological aspects of the pinch technique are presented, and several recent developments are briefly reviewed.
Information technology deployment in a transition economy: Results from Slovenia
Hovelja Toma?
Economic Annals , 2009, DOI: 10.2298/eka0983056h
Abstract: Information technology (IT) is increasingly establishing itself as one of the major topics of study in the OECD area. The resulting OECD studies found that IT has an enormous productive potential; however before an economy can gain most of IT's benefits, several challenges need to be successfully addressed. The key challenges these studies identified are adequate organizational transformations of the enterprises and adequate reorganization of key national institutions. How these two challenges are tackled by the economies that are going through the transition from a socialist towards a coordinated/liberal market economy is, unfortunately, not equally well documented. To improve this situation in this paper I present new findings from one transition economy concerning the issues that the developed OECD countries already highlighted as critical for the successful deployment of IT, and issues that seem specific to the transition environments. The presented findings are based on the study I conducted into 94 enterprises, representing the population of the 914 biggest added value generating enterprises in Slovenia. This article thus tries to allow Slovenia and other economies in a similar situation to draw broad and important conclusions with managerial and political implications on how to deploy all available IT potential.
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