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Productivity and Real Exchange Rates : Some Empirical Examples
Irandoust, Manuchehr,Sjo¨o¨, Boo 세종대학교 국제경제연구소 2002 Journal of Economic Integration Vol.17 No.3
This paper examines the relevence of the Balassa-Samuelson productivity-bias hypothesis for explaning long-run permanent shocks in the real exchange rates. The sample consists of yearly data on real exchange rates and productivity for six OECD countries. On the basis of Johansens maximum likelihood tests and VECMs, we find little support for the hypothesis. Our results provide a weak support for monetary integration in Europe.
Productivity and Real Exchange Rates: Some Empirical Examples
( Manuchehr Irandoust ),( Boo Sjoo ) 세종대학교 경제통합연구소 2002 Journal of Economic Integration Vol.17 No.3
This paper examines the relevance of the Balassa-Samuelson productivity-bias hypothesis for explaining long-run permanent shocks in the real exchange rates. The sample consists of yearly data on real exchange rates and productivity for six OECD countries. On the basis of Johansens maximum likelihood tests and VECMs, we find little support for the hypothesis. Our results provide a weak support for monetary integration in Europe.
How Sustainable Are Trade Balances in China, Japan, and Korea?
Manuchehr Irandoust 서울대학교 경제연구소 2022 Seoul journal of economics Vol.35 No.3
Previous studies of trade flows have been based on bivariate analysis and residual-based panel cointegration techniques. This paper studies the long-run relationship between exports and imports in China, Japan, and Korea by applying the likelihoodbased panel cointegration technique and multivariate analysis. The results indicate that there exists a long-run steady-state relationship between exports and imports. The policy implications of our findings are that trade flows do not lead to the violation of international budget constraints and, more importantly, there is no productivity gap between the domestic economy and the rest of the world. This implies a lack of permanent technological shocks to the domestic economy. The existence of cointegration between imports and exports in the sample countries also suggests that their macroeconomic policies are effective in bringing exports and imports into balance.
FDI and Natural Resource Rents: Evidence from Eight Post-Communist Countries
Manuchehr Irandoust 중앙대학교 경제연구소 2022 Journal of Economic Development Vol.47 No.2
This study examines the long-run relationship between foreign direct investment (FDI), trade openness, and natural resource rents in Transcaucasian and Central Asian post-communist countries. The paper deals with cross-sectional dependence, homogeneity restrictions, and panel unit root tests. The departure from earlier studies of the role of natural resources in attracting FDI is in the asymptotic theory of likelihood-based panel cointegration allowing for multiple cointegrating vectors. The results reveal that the variables cointegrate in six countries out of eight under review. This implies that natural resource rents and trade openness promote FDI. Policy implications and legal aspects are discussed.
Foreign Aid and Economic Growth: New Evidence from Panel Cointegration
Abdulnasser Hatemi-J,Manuchehr Irandoust 중앙대학교 경제연구소 2005 Journal of Economic Development Vol.30 No.1
The relationship between foreign aid and economic growth is investigated for a panel of developing countries (Botswana, Ethiopia, India, Kenya, Sri-Lanka, and Tanzania) over the period 1974-1996. The results reveal that the variables contain a panel unit root and they cointegrate in a panel perspective. The long-run elasticities (close to one for most countries) show that foreign aid has a positive and significant effect on economic activity for each country in the sample. A policy implication which may be drawn from the study is that foreign capital flows can have a favorable effect on real income by supplementing domestic savings.
SOLVING PAINLEVE EQUATION OF TYPE 1 USING HOMOTOPY PADE METHOD
G. Hojjati,H. Kheiri,S. IRANDOUST-PAKCHIN 장전수학회 2013 Advanced Studies in Contemporary Mathematics Vol.23 No.2
In this paper we use homotopy Pad´e method for solving Painlev¢¥e equation of type 1. The ability of this method in overcoming on the singular points difficulty, makes it to be efficient method in deal with Painlev¢¥e equation.
Amir Mohammad Mansouri,Ali Akbar Zinatizadeh,Mohsen Irandoust,Aazam Akhbari 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.1
Simultaneous removal of carbon and nutrients from a synthetic wastewater in aerobic/anoxic sequence batch reactor (SBR) was investigated. The experiments were conducted based on a central composite design (CCD)and analyzed using response surface methodology (RSM). Two significant independent variables, cycle time and aeration time, were studied to analyze the process. Five dependent parameters--total COD (TCOD) removal, total nitrogen removal,total phosphorus removal, total Kjeldahl nitrogen removal and effluent nitrate concentration--were monitored as the process responses. The region of exploration for the process was taken as the area enclosed by cycle times (2,4.25 and 6.5 h) and aeration times (30, 40 and 50 min/h) boundaries. The maximum COD (87.18%) and TKN (78.94%)removal efficiencies were obtained at the cycle time and aeration time of 6.5 h and 50 min/h, respectively. While the maximum TN (71.15%) and phosphorus (68.91%) removal efficiencies were obtained at cycle time of 6.5 h and aeration time of 40min/h. As a result, high cycle time (6.5 h) and moderate aeration time (40min/h) were found to be the optimal region for maximum carbon and nitrogen removal efficiencies.
Yadollah Mansouri,Ali Akbar Zinatizadeh,Parviz Mohammadi,Mohsen Irandoust,Aazam Akhbari,Reza Davoodi 한국화학공학회 2012 Korean Journal of Chemical Engineering Vol.29 No.7
The hydraulic characteristic of an anaerobic rotating biological contactor (AnRBC) were studied by changing two important hydraulic factors effective in the treatment performance: the hydraulic retention time (τ) and rotational disk velocity (ω). The reactor hydraulic performance was analyzed by studying hydraulic residence time distributions (RTD) obtained from tracer (Rhodamine B) experiments. The experiments were conducted based on a central composite face-centered design (CCFD) and analyzed using response surface methodology (RSM). The region of exploration for the process was taken as the area enclosed by τ (60, 90 and 120 min) and ω (0.8 and 16 rpm) boundaries. Four dependent parameters, deviation from ideal retention time (Δτ), dead volume percentage and dispersion indexes (Morrill dispersion index (MDI) and dispersion number (d)), were computed as response. The maximum modeled Δτand dead volume percentage was 43.03 min and 37.51% at τ and ω 120 min and 0 rpm, respectively. While, the minimum predicted responses (2.57 min and 8.08%) were obtained at τ and ω 60min and 16 rpm, respectively. The interaction showed that disk rotational velocity and hydraulic retention time played an important role in MDI in the reactor. The AnRBC hydraulic regime was classified as moderate and high dispersion (d=0.09 to 0.253). As a result, in addition to the factors studied, the reactor geometry showed significant effect on the hydraulic regime.