Updated on 2023/06/08

写真a

 
SAITO, Yukiko
 
Scopus Paper Info  
Paper Count: 13  Citation Count: 294  h-index: 7

Click to view the Scopus page. The data was downloaded from Scopus API in June 07, 2023, via http://api.elsevier.com and http://www.scopus.com .

Affiliation
Faculty of Political Science and Economics, School of Political Science and Economics
Job title
Associate Professor

Research Experience

  • 2018.09
    -
    Now

    Waseda University   Faculty of Political Science and Economics   Associate Professor

  • 2014.04
    -
    2018.08

    Research Institute of Economy, Trade and Industry   Senior Fellow

  • 2012.04
    -
    2014.03

    Research Institute of Economy, Trade and Industry   Fellow

  • 2007.06
    -
    2012.03

    Fujitsu Research Institute   Economic Research Center   Senior Associate

  • 2002.04
    -
    2007.05

    Fujitsu Research Institute   Economic Research Center   Research Associate

  • 1999.04
    -
    2002.03

    Japan Society for the Promotion of Science   Research Fellow (DC1)

▼display all

Research Areas

  • Economic policy   Spatial Economics / Economic policy   Spatial Economics

Research Interests

  • Knowledge Spillover

  • Agglomeration

  • Inter-firm Network

 

Papers

  • China's impact on regional employment: Propagation through input-output linkages and co-location patterns

    Shuhei Kainuma, Yukiko U. Saito

    WORLD ECONOMY   45 ( 11 ) 3559 - 3601  2022.11  [Refereed]

     View Summary

    How do imports from China affect local labour markets in Japan? We examine this question using commuting zones as regional units and analysing shock propagation through supply chains and co-location patterns. Applying the method proposed by Autor et al. (American Economic Review, 103, 2121, 2013) and Acemoglu, Autor et al. (Journal of Labor Economics, 34, S141, 2016), we examine the impact of import shocks on regional manufacturing employment using input-output tables which allows us to investigate the propagation of shocks to both upstream and downstream industries and to relate the regional impact to industry co-location patterns. We find that the negative direct effect on local employment is underestimated in previous studies that do not consider the regional propagation of the shock through supply chains, especially the positive shock to downstream industries. Downstream industries in Japan, for example, significantly benefit from imports from China as they lower input prices and increase employment. In contrast to downstream industries, we find no significant impact on upstream industries. Our results imply that the direct negative effect on local labour markets is somewhat mitigated by effects on downstream industries within the same region.

    DOI

    Scopus

    1
    Citation
    (Scopus)
  • Indirect trade and direct trade: Evidence from Japanese firm transaction data

    Tadashi Ito, Yukiko Umeno Saito

    WORLD ECONOMY   44 ( 2 ) 444 - 461  2021.02  [Refereed]

     View Summary

    This paper attempts to establish stylised facts on direct and indirect trade and its relationship with firm performance using firm transaction data of Japanese firms, with the special goal of shedding light on regional aspects of indirect exports/imports. The major findings are as follows: (a) firms in regional areas are smaller in size than those in a metropolitan area, and firms in regional areas are less likely to participate in export or import, even after controlling for firm size; (b) direct and indirect exports/imports in terms of the number of firms, employees, and sales values represent 40%-70% of the regional economies; (c) indirect exporters/importers in the previous period are likely to be direct exporters/importers in the subsequent period, which suggests the effects of learning in terms of procedures for conducting exporting/importing, searching for customers/suppliers, and gaining information on foreign markets; and (d) both direct export/import firms and indirect export/import firms in the previous period tend to have higher firm performance in the subsequent period.

    DOI

    Scopus

    1
    Citation
    (Scopus)
  • How does the global network of research collaboration affect the quality of innovation?

    Takashi Iino, Hiroyasu Noue, Yukiko U. Saito, Yasuyuki Todo

    JAPANESE ECONOMIC REVIEW   72 ( 1 ) 5 - 48  2021.01  [Refereed]

     View Summary

    This study examines how research collaboration of firms affects the quality of their innovation outcomes using comprehensive patent data for firms in the world from 1991 to 2010. Identifying research collaboration by co-patenting relationships, we find that research collaboration with other firms, particularly with foreign firms, leads to substantial improvement in innovation quality. We also observe a positive effect of the brokerage in the global network, especially for firms with international collaboration links. These results are applicable to the effect on the quality of innovation achieved individually without any collaboration. Therefore, our findings emphasize the importance of links with a variety of partners, particularly with foreign partners to improve innovation performance. Finally, we find that the collaboration effect is larger in the 2000s than in the 1990s and varies depending on firm size and across countries.

    DOI

    Scopus

    10
    Citation
    (Scopus)
  • Supply Chain Disruptions: Evidence from the Great East Japan Earthquake*

    Vasco M Carvalho, Makoto Nirei, Yukiko U Saito, Alireza Tahbaz-Salehi

    The Quarterly Journal of Economics   136 ( 2 ) 1255 - 1321  2020.12  [Refereed]

     View Summary

    Abstract

    Exploiting the exogenous and regional nature of the Great East Japan Earthquake of 2011, this article provides a quantification of the role of input-output linkages as a mechanism for the propagation and amplification of shocks. We document that the disruption caused by the disaster propagated upstream and downstream along supply chains, affecting the direct and indirect suppliers and customers of disaster-stricken firms. Using a general equilibrium model of production networks, we then obtain an estimate for the overall macroeconomic impact of the disaster by taking these propagation effects into account. We find that the earthquake and its aftermaths resulted in a 0.47 percentage point decline in Japan’s real GDP growth in the year following the disaster.

    DOI

    Scopus

    73
    Citation
    (Scopus)
  • Localization of collaborations in knowledge creation

    Hiroyasu Inoue, Kentaro Nakajima, Yukiko Umeno Saito

    The Annals of Regional Science   62 ( 1 ) 119 - 140  2019.02  [Refereed]

     View Summary

    This study investigates the localization of collaboration in knowledge creation by using data on Japanese patent applications. Applying distance-based methods, we obtained the following results. First, collaborations are significantly localized at the 5% level with a localization range of approximately 100km. Second, the localization of collaboration is observed in most technologies. Third, the extent of localization was stable from 1986 to 2005 despite extensive developments in information and communications technology that facilitate communication between remote organizations. Fourth, the extent of localization is substantially greater in inter-firm collaborations than in intra-firm collaborations. Furthermore, in inter-firm collaborations, the extent of localization is greater in collaborations with small firms. This result suggests that geographic proximity mitigates the firm-border effects on collaborations, especially for small firms.

    DOI

    Scopus

    10
    Citation
    (Scopus)
  • Production Networks, Geography, and Firm Performance

    Andrew B Bernard, Andreas Moxnes, Yukiko U Saito

    Journal of Political Economy   127 ( 2 ) 639 - 688  2019.02  [Refereed]

  • Indirect exports and wholesalers: Evidence from interfirm transaction network data

    Daisuke Fujii, Yukako Ono, Yukiko Umeno Saito

    JAPAN AND THE WORLD ECONOMY   44   35 - 47  2017.12  [Refereed]

     View Summary

    A substantial fraction of international trade is facilitated by wholesalers, who enable manufacturers to indirectly export their products to foreign markets. Using large-scale Japanese interfirm transaction network data, this paper investigates the features of both direct and indirect exporters as well as international wholesalers. As predicted by a simple Melitz-type trade model with indirect export alternative, the sorting pattern is confirmed in our data, and the distributions of sales and labor productivity are ordered for direct, indirect, and non-exporters in terms of first order stochastic dominance. Multinomial logit analysis is also consistent with the model, which assumes lower fixed cost and higher marginal cost for indirect exporters compared to direct exporters. We also find that the number of suppliers raises the probability of direct exporting implying a cost sharing mechanism of firms with more suppliers. On the other hand, the number of customers raises the probability of exporting in general (both indirect and direct) implying a higher product appeal and broader demand base for firms who have more customers. (C) 2017 Elsevier B.V. All rights reserved.

    DOI

    Scopus

    7
    Citation
    (Scopus)
  • Localization of knowledge-creating establishments

    Hiroyasu Inoue, Kentaro Nakajima, Yukiko Umeno Saito

    JAPAN AND THE WORLD ECONOMY   43   23 - 29  2017.09  [Refereed]

     View Summary

    This study investigates the localization of establishment-level knowledge creation using data from a Japanese patent database. Using distance-based methods, we obtain the following results. First, Japanese knowledge-creating establishments defined by patenting experience are significantly localized at the 5% level, with a localization range of approximately 80 km. Second, localization is observed for all patent technology classes, and the extent of localization has a positive relationship with the level of technology measured by R&D investment. Finally, the extent of localization is stronger for establishments that are more productive in terms of both the number of patents and the number of citations received, i.e., quantitatively and qualitatively. These results indicate that geographical proximity is important for knowledge spillover, particularly for establishments that demand external knowledge intensively. (C) 2017 Elsevier B.V. All rights reserved.

    DOI

    Scopus

    5
    Citation
    (Scopus)
  • 被災地以外の企業における東日本大震災の影響 — サプライチェーンにみる企業間のネットワーク構造とその含意—

    齊藤有希子

    日本統計学会誌   42 ( 1 ) 135 - 144  2012.09  [Refereed]

  • Measuring economic localization: Evidence from Japanese firm-level data

    Kentaro Nakajima, Yukiko Umeno Saito, Iichiro Uesugi

    JOURNAL OF THE JAPANESE AND INTERNATIONAL ECONOMIES   26 ( 2 ) 201 - 220  2012.06  [Refereed]

     View Summary

    Nakajima, Kentaro, Saito, Yukiko Umeno, and Uesugi, lichiro-Measuring economic localization: Evidence from Japanese firm-level data
    This paper examines location patterns of Japan's manufacturing industries using a unique firm-level dataset on the geographic location of firms. Following the point-pattern approach proposed by Duranton and Overman (2005), we find the following. First, about half of Japan's manufacturing industries can be classified as localized and the number of localized industries is largest for a distance level of 40 km or less. Second, several industries in the textile mill products sector are among the most localized, which is similar to findings for the UK, suggesting that there exist common factors across countries determining the concentration of industrial activities. Third, the distribution of distances between entrant (exiting) firms and remaining firms is, in most industries, not significantly different from a random distribution. These results suggest that most industries in Japan neither become more localized nor more dispersed over time and are in line with similar findings by Duranton and Overman (2008) for the UK. Fourth, a comparison with the service sector indicates that the share of localized industries is higher in manufacturing than in services, although the extent of localization among the most localized manufacturing industries is smaller than that among the most localized service industries, including financial service industries. J. Japanese Int. Economies 26 (2) (2012) 201-220. Faculty of Economics, Tohoku University, 27-1 Kawauchi, Aoba-ku, Sendai-shi, Miyagi 980-8576, Japan; Fujitsu Research Institute, New Pier Takeshiba South Tower, 16-1 Kaigan 1-chome, Minato-ku, Tokyo 105-0022, Japan: Institute of Economic Research, Hitotsubashi University, 2-1 Naka, Kunitachi-shi, Tokyo 186-8603, Japan. (C) 2012 Elsevier Inc. All rights reserved.

    DOI

    Scopus

    35
    Citation
    (Scopus)
  • The bursting of housing bubble as jamming phase transition

    Katsuhiro Nishinari, Mitsuru Iwamura, Yukiko Umeno Saito, Tsutomu Watanabe

    Journal of Physics: Conference Series   221  2010  [Refereed]

     View Summary

    In this paper, we have proposed a bubble burst model by focusing on transaction volume incorporating a traffic model that represents spontaneous traffic jam. We find that the phenomenon of bubble burst shares many similar properties with traffic jam formation on highway by comparing data taken from the U.S. housing market. Our result suggests that transaction volume could be a driving force of bursting phenomenon. © 2010 IOP Publishing Ltd.

    DOI

    Scopus

    3
    Citation
    (Scopus)
  • Do larger firms have more interfirm relationships?

    Yukiko Umeno Saito, Tsutomu Watanabe, Mitsuru Iwamura

    PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS   383 ( 1 ) 158 - 163  2007.09  [Refereed]

     View Summary

    In this study, we investigate interfirm networks by employing a unique data set containing information on more than 800,000 Japanese firms, about half of all corporate firms currently operating in Japan. First, we find that the number of relationships, measured by the indegree, has a fat-tail distribution, implying that there exist "hub" firms with a large number of relationships. Moreover, the indegree distribution for those hub firms also exhibits a fat tail, suggesting the existence of "super-hub" firms. Second, we find that larger firms tend to have more counterparts, but the relationship between firms' size and the number of their counterparts is not necessarily proportional; firms that already have a large number of counterparts tend to grow without proportionately expanding it. (C) 2007 Elsevier B.V. All rights reserved.

    DOI

    Scopus

    35
    Citation
    (Scopus)

▼display all

 

Syllabus

▼display all

 

Sub-affiliation

  • Faculty of Political Science and Economics   Graduate School of Political Science

  • Faculty of Political Science and Economics   Graduate School of Economics