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Agricultural Protectionism and Welfare in a Small Open Economy
( Sugata Marjit ),( Gautam Gupta ) 세종대학교 경제통합연구소 1995 Journal of Economic Integration Vol.10 No.4
The recently concluded multilateral trade agreement, GATT, proposes to reduce export subsidies on agricultural items. This paper discusses, in a general equilibrium framework, the welfare implications of such a move on a small open economy that imports as well as exports agricultural products. The paper shows that, depending upon the pattern of agricultural trade as a whole, the volume of trade and price sensitivity of import demand, the welfare implications of agricultural trade liberalization can go either way.
( Sugata Marjit ) 세종대학교 경제통합연구소 1989 Journal of Economic Integration Vol.4 No.1
This paper builds up a neo-classical trade model to explain the ``product-cycle`` hypothesis originally proposed by Raymond Vernon. As the skill intensity of a product falls over time, the more capital-abundant North tends to export ``new`` goods and the less developed South exports ``old`` goods, The trade pattern remains invariant over time although the product mix changes as the ``new`` goods become old, and this exhibits the product-cycle type phenomenon. Thus, it is shown that. with reasonable assumpitons. the traditional factor-abundance model is sufficient to generate a product cycle type trade pattern.
On the Participation of Local Capital in a Foreign Enclave-A General Equilibrium Analysis
( Sugata Marjit ) 세종대학교 경제통합연구소 1994 Journal of Economic Integration Vol.9 No.4
We provide a general equilibrium analysis of a “joint venture" between local and foreign capitalists in an export sector of a small economy. When, due to political reasons, the local government is unable to alter the tariff rates drastically, promoting such joint-ventures improves national welfare. Our results obtained earlier in a “full employment" context continue to hold in a model with unemployment.
Diagnostics in logistic regression models
Sugata Sen Roy 한국통계학회 2008 Journal of the Korean Statistical Society Vol.37 No.2
In this paper we study the diagnostics of a logistic regression model using the deletion of observation technique. The model istted using the maximum likelihood method and the changes in the estimates and the deviance are observed when the model isretted after deleting an observation. Expressions are derived so that it is not necessary to re-run the regression after each deletion,thereby considerably saving the computational time.
A WFC3 study of globular clusters in NGC 4150: an early‐type minor merger
Kaviraj, Sugata,Crockett, R. Mark,Whitmore, Bradley C.,Silk, Joseph,O’Connell, Robert W.,Windhorst, Rogier A.,Mutchler, Max,Rejkuba, Marina,Yi, Sukyoung,Frogel, Jay A.,Calzetti, Daniela Blackwell Publishing Ltd 2012 Monthly notices of the Royal Astronomical Society. Vol.422 No.1
<P><B>ABSTRACT</B></P><P>We combine near‐ultraviolet (NUV; 2250 Å) and optical (<I>U</I>, <I>B</I>, <I>V</I>, <I>I</I>) imaging from the Wide Field Camera 3 (WFC3), on‐board the <I>Hubble Space Telescope</I> (<I>HST</I>), to study the globular cluster (GC) population in NGC 4150, a sub‐L* (<I>M</I><SUB><I>B</I></SUB>∼−18.48 mag) early‐type minor‐merger remnant in the Coma I cloud. We use broad‐band NUV–optical photometry from the WFC3 to estimate individual ages, metallicities, masses and line‐of‐sight extinctions [<I>E</I>(<I>B</I>−<I>V</I>)] for 63 bright (<I>M</I><SUB><I>V</I></SUB> < −5 mag) GCs in this galaxy. In addition to a small GC population with ages greater than 10 Gyr, we find a dominant population of clusters with ages centred around 6 Gyr, consistent with the expected peak of stellar mass assembly in faint early types residing in low‐density environments. The old and intermediate‐age GCs in NGC 4150 are metal poor, with metallicities less than 0.1 Z<SUB>⊙</SUB>, and reside in regions of low extinction [<I>E</I>(<I>B</I>−<I>V</I>) < 0.05 mag]. We also find a population of young, metal‐rich (<I>Z</I> > 0.3 Z<SUB>⊙</SUB>) clusters that have formed within the last Gyr and reside in relatively dusty [<I>E</I>(<I>B</I>−<I>V</I>) > 0.3 mag] regions that are coincident with the part of the galaxy core that hosts significant recent star formation. Cluster disruption models (in which ∼80–90 per cent of objects younger than a few ×10<SUP>8</SUP> yr dissolve every dex in time) suggest that the bulk of these young clusters are a transient population.</P>
The Product Cycle Hypothesis and The Heckscher-Ohlin-Samuelson Theory of International Trade
Marjit, Sugata 세종대학교 국제경제연구소 1989 Journal of Economic Integration Vol.4 No.1
This paper builds up a neo-classical trade model to explain the 'product-cycle' hypothesis originally proposed by Raymond Vernon. As the skill intensity of a product falls over time, the more capital-abundant North tends to export 'new' goods and the less developed South export 'old' goods. The trade pattern remains invariant over time although the product mix changes as the 'new' goods become old, and this exhibits the product-cycle type phenomenon. Thus, it is shown that, with reasonable assumpitons, the traditional factor-abundance model is sufficient to generate a product cycle thpe trade pattern.
Subcontracting, R&D and Labour Productivity : A Theoretical Explanation
DIBYENDU MAITI;SUGATA MARJIT 경제연구소 2011 Journal of Economic Development Vol.36 No.3
While a large body of researches discusses the effects of international subcontracting on firm dynamics, the present work deals with the similar issues of a domestic firm who subcontracts to the informal sector in a typical developing world. Theoretically, we develop a model that if the formal sector wage is higher than that of informal sector, the choice of informal sector subcontracting and in-house R&D investment appears to be alternative options to the firm to bypass expensive labour in the formal sector. We argue that the R&D and labour productivity in formal sector are highly influenced by the informal wage but not the formal sector one. Since the subcontracting can raise both supply and demand for informal workers due to a rise of formal sector wage, the movement of informal sector wage is uncertain and thereby, the formal sector R&D and labour-productivity are also ambiguous. Thus, countries with a vast segment of lowly-paid informal workers exhibit lowly-productive formal workers.
SUBCONTRACTING, R&D AND LABOUR PRODUCTIVITY: A THEORETICAL EXPLANATION
DIBYENDU MAITI,SUGATA MARJIT 중앙대학교 경제연구소 2011 Journal of Economic Development Vol.36 No.3
While a large body of researches discusses the effects of international subcontracting on firm dynamics, the present work deals with the similar issues of a domestic firm who subcontracts to the informal sector in a typical developing world. Theoretically, we develop a model that if the formal sector wage is higher than that of informal sector, the choice of informal sector subcontracting and in-house R&D investment appears to be alternative options to the firm to bypass expensive labour in the formal sector. We argue that the R&D and labour productivity in formal sector are highly influenced by the informal wage but not the formal sector one. Since the subcontracting can raise both supply and demand for informal workers due to a rise of formal sector wage, the movement of informal sector wage is uncertain and thereby, the formal sector R&D and labour-productivity are also ambiguous. Thus, countries with a vast segment of lowly-paid informal workers exhibit lowly-productive formal workers.