https://plagiarism.repec.org/offenders.html


1.

Aidong Liu, Business School of Central South University
Jinfang Liu, Business School of Central South University

Facts
Note: some links may turn invalid over time, especially if the committee has requested some works to be pulled.
Liu, Aidong & Liu, Jinfang, 2010. " The Collusion Deterrence with Prisoner's Dilemma," Journal of Service Science and Management, vol. 3(4), pages 470-478. (local copy)

Kofman, Fred & Lawarree, Jacques, 1996. "A prisoner's dilemma model of collusion deterrence," Journal of Public Economics, vol. 59(1), pages 117-136, January.(local copy)

Liu and Liu (2010) is a copy of Kofman and Lawaree (1996), except that a few paragraphs have been added or removed, and a small amount of rewording.


2.

Jixiang Zhang, School of Economics and Management, Southeast University, Nanjing
Qingli Da, School of Economics and Management, Southeast University, Nanjing
Yanhua Wang, School of Environmental Science and Engineering, Shanghai Jiao Tong University Min Hang

Facts
Note: some links may turn invalid over time, especially if the committee has requested some works to be pulled.
Zhang, Jixiang & Da, Qingli & Wang, Yanhua, 2007. "Analysis of nonlinear duopoly game with heterogeneous players," Economic Modelling, Elsevier, vol. 24(1), pages 138-148, January. (local copy)

H.N. Agiza, A.A. Elsadany, 2003. Nonlinear dynamics in the Cournot duopoly game with heterogeneous players, Physica A: Statistical Mechanics and its Applications, Volume 320, 15 March 2003, pages 512-524. (local copy)

The first article is a rewrite of the second one with a slightly different cost function. The text structure is preserved, except for a few omissions, and the wording has been altered. The second article is cited.


3.

Zhu Qingyu

Facts
Note: some links may turn invalid over time, especially if the committee has requested some works to be pulled.
Qingyu, Zhu, 2010. "Regional unemployment and house price determination," MPRA Paper 41785, University Library of Munich, Germany. (local copy)

Apsden, Adam, 2012. "House Prices and Unemployment for UK Regions", Senior Honours Dissertation, University of Glasgow (local copy)

Qingyu (2010) is an identical copy, save for title and author, of Apsden (2012). Note that Qingyu (2010) was submitted to MPRA on 3. February 2013 and contains references dated in 2011 and 2012. The University of Glasgow confirmed that the Master thesis of Apsden (2012) was submitted and accepted in February 2012 (email with attached dissertation).