東北大学
現代経済学研究会
この研究会について:
 2006年度より、東北大学に在籍する経済学研究者有志が集まって定期的に研究会を開催することになりました。本研究会では国際的学術雑誌への投稿を精力的に行っている第一線の研究者に研究発表をお願いしています。参加資格は特に設けませんので、報告論題に関心のある方は奮ってご参加ください。学内の方はもちろん、学外の方もご参加いただけます。

 開催予定はあくまで暫定であり、日時が変更されたりキャンセルされる場合があります。ご注意ください。

アクセス情報:
 第401演習室は、経済学部研究棟ではなく、文科系総合研究棟(教育学研究科が入居している建物)の4階にあるのでご注意ください。
 経済学研究科へのアクセスと川内キャンパス内の建物の配置についてはこの地図をご参照ください(地図中のC16が経済学部研究棟、C14が文科系総合研究棟です)。

共催情報:
 今年度の研究会は全てサービス・データ科学研究センターワークショップとの共催です。
 サービス・データ科学研究センターについてはこのサイトをご参照ください。









セミナー幹事: 松前 龍宜
matsumae@econ.tohoku.ac.jp

4月27日(木) 16:20-17:50 第401演習室(文科系総合研究棟4階)
                 

鈴木慶春 氏 (千葉大学)


Competition, Patent Protection, and Innovation in an Endogenous Market Structure

Abstract: This study revisits the relationship between competition and innovation by incorporating an endogenous market structure in a dynamic general equilibrium model. We consider a free-entry model that the leader engages in Cournot competition with both non-innovative and innovative followers in each industry. A competition-enhancing policy, which reduces entry cost, can stimulate the entry of innovative followers when the entry cost is high. However, when the entry cost is sufficiently low, the entry of non-innovative followers crowds out innovative followers from the market. As a result, there is a non-monotonic relationship (inverted-V shape) between competition and innovation. Furthermore, we show that, while strengthening patent protection positively affects innovation when competition is sufficiently intense, the effect may be negative under milder competition. This suggests that a competition policy could complement a patent policy.



2017年5月18日(木) 16:20-17:50 第401演習室(文科系総合研究棟4階)

奴田原健悟 氏 (専修大学)

Title: Can the Laffer curve for consumption tax be hump-shaped? (abstract)

This paper characterizes the shape of the Laffer curve for consumption tax analytically. The Laffer curve for consumption tax can be hump-shaped if the utility function is an additively separable one in consumption and labor supply. Conversely, it cannot be hump-shaped if the utility function is the one employed by previous researchers. The difference in the utility functions has quantitatively significant effects on the peak tax rates of the Laffer curves for labor and capital income taxes.


2017年5月25日(木) 16:20-17:50 第401演習室(文科系総合研究棟4階)

稲葉大 氏 (関西大学)

Title: Regional Business Cycle and Growth Features of Japan (abstract)

We study the features of regional business cycles and growth in Japan. We find evidence of unconditional convergence over the 1955-2008 period. For the 1975-2008 period, we find evidence of convergence conditional on TFP gap, population growth, private investment rate and TFP growth. We also find that the consumption-output correlation puzzle exists, which implies that the idiosyncratic income shocks are not shared among prefectures and regions. Our analysis implies that frictions in financial markets are responsible for the low consumption risk-sharing among prefectures.


2017年6月15日(木) 16:20-17:50 第401演習室(文科系総合研究棟4階)

堀健夫 氏 (東京工業大学)

Title: Monetary Policy, Financial Frictions, and Heterogeneous R&D Firms in an Endogenous Growth Model (abstract)

Motivated by the empirical facts, we construct an endogenous growth model in which heterogeneous R&D firms are financially constrained and use cash to finance R&D investments. The interaction between financial constraints and heterogeneity is an important determinant of the optimality of the Friedman rule. If there are no financial frictions, the presence of heterogeneity does not affect the optimality of the Friedman rule. If there are severe financial frictions, however, heterogeneity has an important effect. Without heterogeneity, the Friedman rule is optimal. However, with heterogeneity among R&D firms, deviating from the Friedman rule improves social welfare under a plausible condition.


2017年7月20日(木) 16:20-17:50 TBA

松島法明 氏 (大阪大学)

Title: TBA (abstract)

TBA


2017年7月24日(月) 16:20-17:50 TBA

濱秋純哉 氏 (法政大学)

Title: TBA (abstract)

TBA


2017年7月27日(木) 16:20-17:50 TBA

荒戸寛樹 氏 (首都大学東京)

Title: TBA (abstract)

TBA


2017年8月24日(木) 16:20-17:50 TBA

高塚創 氏 (香川大学)

Title: TBA (abstract)

TBA



これまでの研究会:

2017年4月20日(木) 16:20-17:50 第21演習室(文科系総合研究棟10階)
Language: English, 応用統計計量ワークショップとの共催

Chung-Fang Chiang 氏 (National Taiwan University)

Title: What do voters learn from foreign news? Experimental Evidence on PTA diffusion in Japan and Taiwan (abstract)

What are the effect of foreign news exposure on voter policy preferences? The proportion of news reports about foreign government actions, relative to domestic government actions, has increased dramatically during the past decades. This paper tests three hypotheses on what voters learn from foreign news in forming their opinions on a forthcoming trade agreement: self-interests, socio-tropic inference and the extraction of government competence signal. We designed and conducted two-waves of coordinated survey experiments in Japan and Taiwan in 2015, which randomly assigned different but factual news reports of their neighboring countries (Korea and China) signing a trade agreement, and solicit support for their own government signing an agreement with China. The results suggest that exposure to foreign news increases opposition to PTA with China around 7% points in Japan and decreases opposition by 6%-7% points in Taiwan.? In both countries, socio-tropic inference shapes respondent attitudes and respondents did not seem to learn self-interests or sectoral distributional implications from the foreign news reports. The findings shed new lights on the voter-based mechanisms underlying diffusion of economic policies across countries.?




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