Researcher Database

Susumu Imai
Faculty of Public Policy Public Policy Public Policy
Professor

Researcher Profile and Settings

Affiliation

  • Faculty of Public Policy Public Policy Public Policy

Job Title

  • Professor

Research funding number

  • 10796494

J-Global ID

Research Interests

  • Applied Econometrics   Labor Economics   Empirical Industrial Organization   

Research Areas

  • Humanities & social sciences / Economic statistics

Research Activities

Published Papers

  • Susumu Imai, Derek Stacey, Casey Warman
    Canadian Journal of Economics 52 (3) 914 - 953 0008-4085 2019 [Refereed][Not invited]
     
    © 2019 Canadian Economics Association We examine the ability of immigrants to transfer the occupational human capital they acquired prior to immigration. We first augment a model of occupational choice to study the implications of language proficiency on the cross-border transferability of occupational human capital. We then explore the empirical predictions using information about the skill requirements from O*NET and a unique dataset that includes both the last source country occupation and the first four years of occupations in Canada. We supplement the analysis using Census estimates for the same cohort with source country occupational skill requirements predicted using detailed human capital related information such as field of study. We find that male immigrants to Canada were employed in source country occupations that typically require high levels of cognitive skills, but rely less intently on manual skills. Following immigration, they find initial employment in occupations that require the opposite. Consistent with the hypothesized asymmetric role of language in the transferability of previously acquired cognitive and manual skills, these discrepancies are larger among immigrants with limited language fluency.
  • Susumu Imai, Yuka Ohno
    Japanese Economic Review 69 (3) 255 - 257 1352-4739 2018/09 [Refereed][Not invited]
  • Hitoshi Hayakawa, Susumu Imai, Kazuko Nakata
    Japanese Economic Review 69 (3) 324 - 339 1352-4739 2018/09 [Refereed][Not invited]
     
    © 2018 Japanese Economic Association In this paper, we survey the empirical analysis of brands. The difficulty in this area of research is that even though a brand is easily identifiable, its economic roles are not directly observable. We first discuss methods where the effect of a brand is measured as the unobservable component of sales or price of a product, which researchers recover as a residual of the sales or price regression. We then describe the approaches to estimate the various roles of brands, such as providing information and increasing the utility of consumption. Finally, we provide examples of research that highlight the role of brands in exploiting the irrationality of consumers for profit.
  • Peter Fallesen, Lars Pico Geerdsen, Susumu Imai, Torben Tranæs
    Labour Economics 52 263 - 286 0927-5371 2018/06 [Refereed][Not invited]
     
    © 2018 We estimate the effects of active labor market policies on men's crime. To do this, we exploit a local policy change in Denmark that targeted unemployed people without unemployment insurance. Our results show that crime rates decreased among treated men relative to both untreated unemployment insured and uninsured men. Lower property crime accounted for the decrease in overall crime. Increased earnings from higher employment rates cannot explain the decrease in crime. Instead, participation in the active labor market program reduced young men's propensity to commit crime. The results suggest that active labor market programs have substantial secondary effects on criminality.
  • Eskil Heinesen, Susumu Imai, Shiko Maruyama
    Journal of Health Economics 58 151 - 175 0167-6296 2018/03 [Refereed][Not invited]
     
    © 2018 The Authors Previous studies find significant negative effects of cancer on employment, with stronger effects for less-educated workers. We investigate whether the effect of cancer varies by skill requirement in the pre-cancer occupation, whether such heterogeneity can explain educational gradients, and whether cancer is associated with changes in job characteristics for cancer survivors who remain employed four years after the diagnosis. We combine Danish administrative registers with detailed skill requirement data and use individuals without cancer as a control group. Our main findings are the following: the negative effect of cancer on employment is stronger if the pre-cancer occupation requires high levels of manual skills or low levels of cognitive skills; the educational gradient diminishes substantially if we allow the effects of cancer to also depend on pre-cancer skill requirements; and cancer is not associated with occupational mobility, indicating potential for policies that reduce labour market frictions for cancer survivors.
  • Susumu Imai, Hajime Katayama, Kala Krishna
    Journal of International Economics 91 (1) 40 - 52 0022-1996 2013/09 [Refereed][Not invited]
     
    This paper proposes a new test of the Protection for Sale (PFS) model by Grossman and Helpman (1994). Unlike existing methods in the literature, our approach does not require any data on political organization. We use quantile and IV quantile regressions in our tests, using the data from Gawande and Bandyopadhyay (2000). Surprisingly, the results do not provide any evidence favoring the PFS model. We also explain why previous work may have found support for it. © 2013.
  • Andrew T. Ching, Susumu Imai, Masakazu Ishihara, Neelam Jain
    Quantitative Marketing and Economics 10 (2) 151 - 196 1570-7156 2012/06 [Refereed][Not invited]
     
    This paper provides a step-by-step guide to estimating infinite horizon discrete choice dynamic programming (DDP) models using a new Bayesian estimation algorithm (Imai et al., Econometrica 77:1865-1899, 2009a) (IJC). In the conventional nested fixed point algorithm, most of the information obtained in the past iterations remains unused in the current iteration. In contrast, the IJC algorithm extensively uses the computational results obtained from the past iterations to help solve the DDP model at the current iterated parameter values. Consequently, it has the potential to significantly alleviate the computational burden of estimating DDP models. To illustrate this new estimation method, we use a simple dynamic store choice model where stores offer "frequent- buyer" type rewards programs.Our Monte Carlo results demonstrate that the IJC method is able to recover the true parameter values of this model quite precisely. We also show that the IJC method could reduce the estimation time significantly when estimating DDP models with unobserved heterogeneity, especially when the discount factor is close to 1. © Springer Science+Business Media, LLC 2012.
  • Susumu Imai, Neelam Jain, Andrew Ching
    Econometrica 77 (6) 1865 - 1899 0012-9682 2009/11 [Refereed][Not invited]
     
    We propose a new methodology for structural estimation of infinite horizon dynamic discrete choice models. We combine the dynamic programming (DP) solution algorithm with the Bayesian Markov chain Monte Carlo algorithm into a single algorithm that solves the DP problem and estimates the parameters simultaneously. As a result, the computational burden of estimating a dynamic model becomes comparable to that of a static model. Another feature of our algorithm is that even though the number of grid points on the state variable is small per solution-estimation iteration, the number of effective grid points increases with the number of estimation iterations. This is how we help ease the "curse of dimensionality." We simulate and estimate several versions of a simple model of entry and exit to illustrate our methodology. We also prove that under standard conditions, the parameters converge in probability to the true posterior distribution, regardless of the starting values. © 2009 The Econometric Society.
  • Susumu Imai, Hajime Katayama, Kala Krishna
    European Economic Review 53 (6) 675 - 688 0014-2921 2009/08 [Refereed][Not invited]
     
    This paper asks whether the results obtained from using the standard approach to testing the influential Grossman and Helpman "protection for sale" model of political economy might arise from a simpler setting. A model of imports and quotas with protection occurring in response to import surges, but only for organized industries, is simulated and shown to provide parameter estimates consistent with the protection for sale framework. This suggests that the standard approach may be less of a test than previously thought. © 2008 Elsevier B.V. All rights reserved.
  • Susumu Imai, Hajime Katayama, Kala Krishna
    International Review of Economics and Finance 18 (2) 181 - 191 1059-0560 2009/03 [Refereed][Not invited]
     
    This paper critically and selectively surveys the literature on protection for sale and discusses directions for future research in this area. It suggests that the standard approach needs to be augmented to provide more compelling tests of this model. © 2008 Elsevier Inc. All rights reserved.
  • Ivan Cherkashin, Svetlana Demidova, Susumu Imai, Kala Krishna
    Journal of International Economics 77 (1) 120 - 132 0022-1996 2009/02 [Refereed][Not invited]
     
    There is little work on the inner workings of journals. What factors seem to affect the ability to publish in a journal? Could simple rules (which are already used by some journals) like the desk rejection of a significant minority of papers, help to streamline the process? At what cost? How well do journals seem to do in choosing papers? What can we say about the extent of type 1 and type 2 errors? Do editors seem to have uniform standards or are some harsher than others? We use data on submissions to the Journal of International Economics to help answer these questions. © 2008 Elsevier B.V. All rights reserved.
  • Susumu Imai, Kala Krishna
    International Economic Review 45 (3) 845 - 872 0020-6598 2004/08 [Refereed][Invited]
     
    Using maximum likelihood techniques and monthly panel data we solve and estimate an explicitly dynamic model of criminal behavior where current criminal activity impacts future labor market outcomes. We show that the threat of future adverse effects in the labor market when arrested acts as a strong deterrent to crime. Moreover, such forward-looking behavior is estimated to be important. Hence, policies that weaken this deterrence will be much less effective in fighting crime. This suggests that prevention is more powerful than redemption since anticipated redemption allows criminals to look forward to negating the consequences of their crimes.
  • Susumu Imai, Michael P. Keane
    International Economic Review 45 (2) 601 - 641 0020-6598 2004/05 [Refereed][Not invited]
     
    We solve and estimate a dynamic model that allows agents to optimally choose their labor hours and consumption and that allows for both human capital accumulation and savings. Estimation results and simulation exercises indicate that the intertemporal elasticity of substitution is much higher than the conventional estimates and the downward bias comes from the omission of the human capital accumulation effect. The human capital accumulation effect renders the life-cycle path of the shadow wage relatively flat, even though wages increase with age. Hence, a rather flat life-cycle labor supply path can be reconciled with a high intertemporal elasticity of substitution.
  • Brand and Quantity Dynamics under Price Uncertainty
    Susumu Imai
    Quantitative Marketing and Economics 1 (1) 5 - 64 2003/03 [Refereed][Not invited]
  • The Value of Owner-Occupation in Neighborhoods
    Susumu Imai
    Journal of Housing Research 13 (2) 153 - 174 2003 [Refereed][Not invited]
  • The Benefits of Owner-Occupation in Neighborhoods
    Susumu Imai
    Journal of Housing Research 14 (1) 21 - 48 2003 [Refereed][Not invited]

Educational Activities

Teaching Experience

  • 論文
    開講年度 : 2018
    課程区分 : 修士課程
    開講学部 : 経済学院
  • Special Study of Industrial Organization A
    開講年度 : 2018
    課程区分 : 修士課程
    開講学部 : 経済学院
  • 現代経済経営演習Ⅰ
    開講年度 : 2018
    課程区分 : 修士課程
    開講学部 : 経済学院
  • Special Study of Industrial Organization B
    開講年度 : 2018
    課程区分 : 修士課程
    開講学部 : 経済学院
  • 現代経済経営演習Ⅱ
    開講年度 : 2018
    課程区分 : 修士課程
    開講学部 : 経済学院
  • General Education Seminar
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 総合教育部
  • 現代経済経営演習
    開講年度 : 2018
    課程区分 : 博士後期課程
    開講学部 : 経済学院
  • General Education Seminar
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 現代日本学プログラム課程
  • 卒業論文
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部
  • English Seminar
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 全学教育
    キーワード : industry groups, industrial policy,business strategy, business system, Competitive advantage, resource-based view of the firm(RBVF), economic ethics
  • 演習Ⅰ(2単位)
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部
  • Arts and Science Courses in English 2
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 国際本部
  • 演習Ⅱ(2単位)
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部
  • Seminar I
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部
    キーワード : 政策のための理論と実証
  • 演習Ⅲ(2単位)
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部
  • Industrial Organization
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部
    キーワード : 産業組織論、企業、独占市場、寡占市場、価格差別化、製品差別化、情報の経済学
  • 演習Ⅳ(2単位)
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部
  • 演習Ⅴ(2単位)
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部
  • 演習Ⅵ(2単位)
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部
  • 演習Ⅶ(2単位)
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部
  • 演習Ⅷ(2単位)
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 経済学部


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