Koji Okuguchi

2.0k total citations
89 papers, 1.1k citations indexed

About

Koji Okuguchi is a scholar working on Economics and Econometrics, General Economics, Econometrics and Finance and Strategy and Management. According to data from OpenAlex, Koji Okuguchi has authored 89 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Economics and Econometrics, 15 papers in General Economics, Econometrics and Finance and 12 papers in Strategy and Management. Recurrent topics in Koji Okuguchi's work include Merger and Competition Analysis (35 papers), Economic theories and models (30 papers) and Global trade and economics (12 papers). Koji Okuguchi is often cited by papers focused on Merger and Competition Analysis (35 papers), Economic theories and models (30 papers) and Global trade and economics (12 papers). Koji Okuguchi collaborates with scholars based in Japan, Australia and United States. Koji Okuguchi's co-authors include Ferenc Szidarovszky, Takeshi Yamazaki, Murray C. Kemp, Ngo Van Long, Carl Chiarella, Kotaro Suzumura, Takashi Negishi, Yoshio Kimura, Sándor Molnár and Takeshi Yamazaki and has published in prestigious journals such as The Review of Economic Studies, Journal of Economic Theory and Economica.

In The Last Decade

Koji Okuguchi

77 papers receiving 982 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Koji Okuguchi Japan	14	847	346	155	147	131	89	1.1k
Giacomo Bonanno United States	17	483 0.6×	356 1.0×	98 0.6×	191 1.3×	153 1.2×	83	914
Jean‐François Mertens Belgium	13	996 1.2×	1.0k 2.9×	294 1.9×	33 0.2×	43 0.3×	31	1.4k
Igor V. Evstigneev United Kingdom	16	799 0.9×	233 0.7×	73 0.5×	89 0.6×	21 0.2×	96	1.1k
Michele Piccione United Kingdom	18	621 0.7×	608 1.8×	304 2.0×	209 1.4×	163 1.2×	33	1.3k
Klaus Reiner Schenk–Hoppé United Kingdom	24	1.0k 1.2×	232 0.7×	268 1.7×	26 0.2×	24 0.2×	117	1.6k
Jan Tuinstra Netherlands	20	1.4k 1.6×	325 0.9×	343 2.2×	62 0.4×	72 0.5×	70	1.7k
Guoqiang Tian United States	17	639 0.8×	450 1.3×	95 0.6×	41 0.3×	56 0.4×	80	1.0k
Marek Pycia United States	15	599 0.7×	605 1.7×	131 0.8×	40 0.3×	172 1.3×	56	913
Mamoru Kaneko Japan	18	844 1.0×	627 1.8×	127 0.8×	15 0.1×	40 0.3×	76	1.1k
Werner Hildenbrand Germany	23	1.9k 2.2×	464 1.3×	87 0.6×	33 0.2×	106 0.8×	55	2.3k

Countries citing papers authored by Koji Okuguchi

Since Specialization

Citations

This map shows the geographic impact of Koji Okuguchi's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Koji Okuguchi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koji Okuguchi more than expected).

Fields of papers citing papers by Koji Okuguchi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koji Okuguchi. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Koji Okuguchi. The network helps show where Koji Okuguchi may publish in the future.

Co-authorship network of co-authors of Koji Okuguchi

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Okuguchi. A scholar is included among the top collaborators of Koji Okuguchi based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Koji Okuguchi. Koji Okuguchi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Okuguchi, Koji. (2004). Optimal Pollution Tax in Cournot Oligopsonistic Oligopoly. RePEc: Research Papers in Economics. 2 indexed citations

Okuguchi, Koji & Ferenc Szidarovszky. (2003). Oligopoly with Intertemporal Demand Interaction. Journal of Economic Research (JER). 8(1). 51–61. 1 indexed citations

Okuguchi, Koji & Ferenc Szidarovszky. (2002). Existence of Nash-Cournot equilibrium in oligopoly games with pollution treatment cost-sharing. Pure mathematics and applications. 13(4). 455–462. 1 indexed citations

Okuguchi, Koji. (2000). Comparative statics for oligopoly, oligopsony and oligopsonistic oligopoly. Journal of Economic Research (JER). 5(2). 173–187. 3 indexed citations

Okuguchi, Koji. (1998). LONG-RUN FISH STOCK AND IMPERFECTLY COMPETITIVE INTERNATIONAL COMMERCIAL FISHING. Keio economic studies. 35(1). 9–17. 5 indexed citations

Okuguchi, Koji. (1998). EXISTENCE OF EQUILIBRIUM FOR COURNOT OLIGOPOLY-OLIGOPSONY. Keio economic studies. 35(2). 45–53. 2 indexed citations

Okuguchi, Koji, et al.. (1996). EFFECTS OF TRADE POLICY FOR INTERNATIONAL DUOPOLY. Keio economic studies. 33(2). 13–22. 3 indexed citations

Okuguchi, Koji & Takeshi Yamazaki. (1994). BERTRAND AND HIERARCHICAL STACKELBERG OLIGOPOLIES WITH PRODUCT DIFFERENTIATION. Keio economic studies. 31(1). 75–80. 2 indexed citations

Okuguchi, Koji & Takeshi Yamazaki. (1994). AD VALOREM AND SPECIFIC TAXES, AND OPTIMAL PIGOUVIAN TAX WITHIN COURNOT OLIGOPOLY. Keio economic studies. 31(2). 25–32. 5 indexed citations

10.

Okuguchi, Koji. (1993). FOLLOWER'S ADVANTAGE IN LABOR-MANAGED DUOPOLY. Keio economic studies. 30(2). 1–5. 3 indexed citations

11.

Okuguchi, Koji & Ferenc Szidarovszky. (1991). ENTRY IN BERTRAND AND COURNOT OLIGOPOLIES WITH PRODUCT DIFFERENTIATION. Keio economic studies. 28(1). 43–49. 2 indexed citations

12.

Szidarovszky, Ferenc & Koji Okuguchi. (1987). NOTES ON THE STABILITY OF QUADRATIC GAMES. Keio economic studies. 24(2). 33–45. 1 indexed citations

13.

Okuguchi, Koji & Ferenc Szidarovszky. (1987). STABILITY OF THE LINEAR COURNOT OLIGOPOLY WITH MULTI-PRODUCT FIRMS. The economic studies quarterly/Economic studies quarterly/Kikan riron keizaigaku. 38(2). 184–187.

14.

Okuguchi, Koji. (1985). NASH-COURNOT EQUILIBRIUM FOR AN INDUSTRY WITH OLIGOPOLY AND A COMPETITIVE FRINGE. Keio economic studies. 22(2). 51–56. 1 indexed citations

15.

Okuguchi, Koji. (1984). COMMERCIAL FISHING WITH PREDATOR-PREY INTERACTION. Keio economic studies. 21(2). 37–44. 3 indexed citations

16.

Kemp, Murray C., Yoshio Kimura, & Koji Okuguchi. (1977). MONOTONICITY PROPERTIES OF A DYNAMICAL VERSION OF THE HECKSCHER-OHLIN MODEL OF PRODUCTION. The economic studies quarterly/Economic studies quarterly/Kikan riron keizaigaku. 28(3). 249–253. 8 indexed citations

17.

Okuguchi, Koji. (1976). FURTHER NOTE ON MATRICES WITH QUASIDOMINANT DIAGONALS. The economic studies quarterly/Economic studies quarterly/Kikan riron keizaigaku. 27(2). 151–154. 3 indexed citations

18.

Okuguchi, Koji. (1975). POWER-POSITIVE MATRICES AND GLOBAL STABILITY OF COMPETITIVE EQUILIBRIUM. Keio economic studies. 12(1). 37–40. 3 indexed citations

19.

Okuguchi, Koji. (1974). Input Choices under Rate of Return Regulation (in English). Econometric Reviews. 25(3). 272–275. 2 indexed citations

20.

Okuguchi, Koji & Kotaro Suzumura. (1971). UNIQUENESS OF THE COURNOT OLIGOPOLY EQUILIBRIUM: A NOTE. The economic studies quarterly/Economic studies quarterly/Kikan riron keizaigaku. 22(1). 81–83. 8 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact