Updated on 2024/10/05

写真a

 
TAKATSUKA Hajime
 
Organization
Graduate School of Economics Department of Economics Professor
School of Economics Department of Economics
Title
Professor
Affiliation
Institute of Economics

Position

  • Graduate School of Economics Department of Economics 

    Professor  2022.04 - Now

  • School of Economics Department of Economics 

    Professor  2022.04 - Now

Degree

  • Ph.D. in Social Engineering ( Tokyo Institute of Technology )

Research Areas

  • Others / Others  / Spatial Economics

Research Interests

  • Spatial Economics

Papers

  • Mobile capital, optimal tariff, and tariff war Reviewed

    Hajime Takatsuka, Dao Zhi Zeng

    Review of International Economics   30 ( 1 )   166 - 204   2022.02( ISSN:1467-9396

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

  • Uniform emission taxes, abatement, and spatial disparities Reviewed

    Hajime Takatsuka

    Australian Journal of Agricultural and Resource Economics   64 ( 4 )   1133 - 1166   2020.10( ISSN:1364-985X

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    Publishing type:Research paper (scientific journal)   Kind of work:Single Work  

    © 2020 Australasian Agricultural and Resource Economics Society Inc. This paper examines how a commitment to a common tax on greenhouse gas (GHG) emissions affects spatial distribution of production and welfare between countries. To focus on the long-term effects of firm relocation, the paper employs a two-country model of monopolistic competition with a variable abatement technology. In the model, the elasticity of substitution between GHG emissions and the conventional input is a key parameter. If the elasticity of substitution is smaller than one (in the substitutable area), the relative number of firms and the relative welfare in the large country monotonically increase with uniform tax rates. Meanwhile, if the elasticity of substitution is larger than one, they both follow inverted U-shaped curves in response to tax rates. Nevertheless, for any level of taxes, they both are necessarily higher than those in the case without taxes. This suggests that uniform emission taxes widen international disparities of firm location and welfare.

    DOI: 10.1111/1467-8489.12397

  • Elastic labor supply, variable markups, and spatial inequalities Reviewed

    Hajime Takatsuka, Dao Zhi Zeng

    Review of International Economics   26 ( 5 )   1084 - 1100   2018.11( ISSN:09657576

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    © 2018 John Wiley & Sons Ltd. Assuming an inelastic labor supply, existing studies show that a larger country has a higher wage rate and a higher individual income. We reexamine these results using a model with an endogenous labor supply and variable markups. We find that these results can be reversed. Specifically, in the larger country, the wage rate is lower but the individual income is higher if the love for variety is strong and trade costs are high. In contrast, the wage rate is higher but the individual income may be lower if the love for variety is weak and trade costs are low.

    DOI: 10.1111/roie.12350

  • Nontariff protection without an outside good Reviewed

    Hajime Takatsuka, Dao Zhi Zeng

    International Review of Economics and Finance   41   65 - 78   2016.01( ISSN:10590560

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    © 2015 Elsevier Inc. Assuming an outside good, the existing intra-industry trade models show that the domestic price index is lowered and the welfare is improved by unilateral nontariff protection against foreign products. Removing the outside good, we reexamine this issue incorporating the factor-price changes to capture the terms-of-trade effect. In the case of one production factor (immobile labor), we find that unilateral protection is neither price-index lowering nor welfare improving. In the case of two production factors (immobile labor and mobile capital), the same result holds if the elasticity of substitution between varieties is as large as that observed in empirical studies. Therefore, the outside-good assumption is not harmless to evaluate trade policies.

    DOI: 10.1016/j.iref.2015.09.005

  • Does Globalization Foster Economic Growth? Reviewed

    MORITA, Tadashi, TAKATSUKA, Hajime, YAMAMOTO, Kazuhiro

    The Japanese Economic Review   66 ( 4 )   492 - 519   2015.12( ISSN:13524739

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    © 2015 Japanese Economic Association. This article examines the effects of globalization, by especially focusing on the relaxation of local equity requirements (LERs) in developing countries. By constructing an endogenous growth model, where profit leakage to the South through LERs plays a key role, we obtain the following results. First, the relaxation of LERs in the South drives the relocation of firms from the North to the South, yielding a U-shaped growth rate. Second, our numerical simulations suggest that a sufficient relaxation of LERs is beneficial for the South, although the shared profit of joint ventures is maximized through the use of LERs.

    DOI: 10.1111/jere.12059

  • Resource-Based Cities and the Dutch Disease Reviewed

    Hajime Takatsuka, Dao-Zhi Zeng, Laixun Zhao

    Resource and Energy Economics   40   57 - 84   2015.05( ISSN:09287655

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    © 2015 Elsevier B.V. This paper examines the relationship between resource development and industrialization. When transport costs are high, the region with a more valuable natural resource enjoys a higher welfare than the other region. However, as transport costs decrease, firms begin to move out of the region, causing the Dutch disease to occur, initially in terms of industry share, and eventually in terms of welfare too when transport is sufficiently free. A resource boom in intermediate inputs may strengthen the tendency for manufacturing agglomeration in the same region, but a resource boom in consumption inputs will weaken this tendency. The model thus provides insight for cities to utilize their limited resources efficiently.

    DOI: 10.1016/j.reseneeco.2015.01.003

  • Tax Effects in a Two-Region Model of Monopolistic Competition Reviewed

    Hajime Takatsuka

    Papers in Regional Science   93 ( 3 )   595 - 617   2014.08( ISSN:10568190

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    Publishing type:Research paper (scientific journal)   Kind of work:Single Work  

    I examine how unit tax and ad valorem tax affect firm location in a monopolistic-competition model with asymmetrically sized regions and a quasi-linear preference. Tax revenue is evenly distributed to all workers or evenly distributed to the workers residing in the region generating the tax revenue. When a homogeneous good is traded, despite reimbursement systems, the ad valorem tax retains the firm share, while the unit tax accelerates firm agglomeration in the larger region. When the homogeneous good is nontradable, despite taxation schemes, the intraregional distribution retains the firm share, while the interregional one accelerates agglomeration in the larger region. © 2013 RSAI.

    DOI: 10.1111/pirs.12010

  • Industrial Configuration in an Economy with Low Transportation Costs Reviewed

    Hajime Takatsuka, Dao-Zhi Zeng

    The Annals of Regional Science   51 ( 2 )   593 - 620   2013.10( ISSN:05701864

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    We examine how the spatial economy with multiple industries is shaped when interregional trade costs and intraregional commuting costs are low. All industries are characterized by increasing returns to scale and monopolistic competition, and they are differentiated by their trade costs and the degree of intra-industry competition measured by their firm numbers. We find some distinct rules in industrial location. First, at most, one industry disperses, while others agglomerate in a region according to their ratios of relative trade costs to firm numbers. Second, industries with stronger competition constitute a smaller region, while those with higher trade costs compose a larger region. The results are consistent with the classical Weberian location theory and suggest that the degree of intra-industry competition also becomes an essential factor to determine industrial location when transportation costs are small. Finally, the population differential between the regions monotonically decreases in the relative commuting cost. © 2013 Springer-Verlag Berlin Heidelberg.

    DOI: 10.1007/s00168-013-0553-5

  • Spatial inequality, globalization, and footloose capital Reviewed

    Toshiaki Takahashi, Hajime Takatsuka, Dao Zhi Zeng, Dao Zhi Zeng

    Economic Theory   53 ( 1 )   213 - 238   2013.05( ISSN:09382259

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    This paper shows the equivalence of spatial inequalities in industrial location and in income by revisiting the home market effect (HME) without any homogeneous good based on a reconstructed footloose capital model. In this simple framework, spatial inequalities in industrial location and in income are the HMEs in terms of firm share and wage, respectively. We show that the larger country has a more-than-proportionate share of firms and a higher wage. Furthermore, both the wage differential and the industrial location in the larger country evolve in an inverted U-pattern when transport costs decline. Finally, we analytically examine the effects of trade liberalization on the welfare and show that both countries may gain from globalization. © 2011 Springer-Verlag.

    DOI: 10.1007/s00199-011-0686-7

  • Trade liberalization and welfare: Differentiated-good versus homogeneous-good markets Reviewed

    Hajime Takatsuka, Dao Zhi Zeng, Dao Zhi Zeng

    Journal of the Japanese and International Economies   26 ( 3 )   308 - 325   2012.09( ISSN:08891583

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    In this paper, we examine the effects of liberalization on industrial location and national welfare in a framework of new economic geography. Specifically, we explicitly incorporate arbitrary trade costs in both differentiated-good and homogeneous-good sectors into a two-country model, and clarify the effects of trade-barrier reduction in each sector. We show that their impacts on welfare levels in the two countries are different, and, if an industry is liberalized while the other is protected, a conflict between the countries might occur. Therefore, appropriate liberalization in both sectors is effective to alleviate such a conflict. © 2012 Elsevier Inc.

    DOI: 10.1016/j.jjie.2012.05.003

  • Mobile capital and the home market effect Reviewed

    Hajime Takatsuka, Dao Zhi Zeng

    Canadian Journal of Economics   45 ( 3 )   1062 - 1082   2012.08( ISSN:00084085

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Most existing studies examine the home market effect (HME) in a framework with immobile labour as the only production factor and the assumption of a freely traded homogeneous good is known to be crucial for the HME to emerge. This study explores the HME in the presence of mobile capital by use of a footloose capital model allowing for positive transport costs of the homogeneous good. The mobile capital generates a channel to offset the trade imbalance of a country. As a result, the HME always appears for arbitrary transport costs in both sectors of differentiated and homogeneous goods. © Canadian Economics Association.

    DOI: 10.1111/j.1540-5982.2012.01727.x

  • Economic Geography of Firms and Skilled Labor Reviewed

    Hajime Takatsuka

    Journal of Regional Science   51 ( 4 )   784 - 803   2011.10( ISSN:00224146

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    Publishing type:Research paper (scientific journal)   Kind of work:Single Work  

    This paper investigates the relationship between firm location and skilled-labor location. While existing new economic geography (NEG) models could not explicitly analyze the relationship due to their assumptions, I construct a new NEG-type model allowing for different location dynamics of firms and skilled labor for this objective. The main results are as follows. First, a relatively large pool of skilled labor attracts firms when trade costs are small, while it might repel firms when trade costs are sufficiently large. Second, assuming that skilled workers are mobile between regions, the model shows that skilled workers agglomerate faster than firms with decreasing trade costs. Third, the model supports the hypothesis that firms follow skilled labor rather than the reverse. These results are consistent to Indian and Chinese experiences, and some "creative-class" or "skilled-city" stories. © 2011, Wiley Periodicals, Inc.

    DOI: 10.1111/j.1467-9787.2011.00724.x

  • Dispersion forms: An interaction of market access, competition, and urban costs Reviewed

    Hajime Takatsuka, Dao Zhi Zeng, Dao Zhi Zeng

    Journal of Regional Science   49 ( 1 )   177 - 204   2009.02( ISSN:00224146

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    This paper analyzes a two-region model including multiple industries with different transport costs. Two results are derived. First, dispersion occurs for small transport costs, but the specific dispersion patterns depend on the level of urban costs. This results from an interaction of the market-access effect on consumers, the market-access effect on firms, the competition effect, and the urban-cost effect. Second, decreasing transport cost tends to let industries with lower transport costs disperse, although the shares of industries locating in the larger region are not in order of their transport costs. We further provide some empirical data concerning the second result. © 2009 Wiley Periodicals, Inc.

    DOI: 10.1111/j.1467-9787.2008.00588.x

  • Existence Conditions of the Optimal Stopping Time: The Cases of Geometric Brownian Motion and Arithmetic Brownian Motion Reviewed

    Hajime Takatsuka

    Journal of the Operations Research Society of Japan   47 ( 3 )   145 - 162   2004

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    Publishing type:Research paper (scientific journal)   Kind of work:Single Work  

  • A Present-Value Model of Real Estate with Interneighborhood Dependency of Incomes Reviewed

    TAKATSUKA, Hajime, HIGUCHI, Yoichiro

    The Journal of Real Estate Finance and Economics   23 ( 1 )   47 - 76   2001.07

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

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Books and Other Publications

  • Spatial Economics

    Dao-Zhi Zeng and Hajime Takatsuka( Role: Joint author)

    Tokyo: Toyo Keizai Inc  2016.09  ( ISBN:9784492314852

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    Book type:Scholarly book

    CiNii Books

  • Urban Development in Japan: 60 Best Planning Practices

    The City Planning Institute of Japan (ed.)( Role: Contributor)

    Tokyo: Asakura Shoten  2011.11 

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    Book type:Scholarly book

  • Honshi Brideges and Regional Economy

    Takeo Ihara (ed.)( Role: Contributor)

    Tokyo: Keiso Shobo  2003.02 

Grant-in-Aid for Scientific Research

  • 資本の国際移動がある下での貿易・国内政策および「深化した貿易協定」に関する研究

    Grant-in-Aid for Scientific Research(C)  2025

  • 資本の国際移動がある下での貿易・国内政策および「深化した貿易協定」に関する研究

    Grant-in-Aid for Scientific Research(C)  2024

Charge of on-campus class subject

  • 空間経済学

    2024   Weekly class   Undergraduate

  • 初年次ゼミナール

    2024   Weekly class   Graduate school

Job title

  • Job title within the department

    Graduate School of Economics 

    副研究院長  2024.04

  • Job title within the department

    Graduate School of Economics 

    副研究科長  2024.04

  • Job title within the department

    School of Economics 

    副学部長  2024.04