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Re?finements to the MLB-NPB Posting System: A Clear Win for Japanese Players and Loss for Japanese Teams, Journal of Sports Economics


We theoretically and experimentally analyze recent changes in the posting system used by Japan?s Nippon Professional Baseball organization and the United States?Major League Baseball organization to transfer the rights of NPB players from NPB teams to MLB teams. Under the old system - a sequential, ?rst-price sealed-bid auction among MLB teams for player negotiation exclusivity rights ?the NPB team enjoyed considerable surplus from lucrative posting fees. We predict that the revised system ?an English auction with an entry fee ?will transfer most of the NPB?s middleman bene?fits (posting fees) to the players through higher salaries. Additionally, we analyze a third, proposed but not adopted, mechanism ?a weighted-average sealed-bid auction. Our experimental results con?rm our theoretical predictions. Furthermore, under the new system: efficiency is greatest, MLB teams spend less on Japanese players, and the players?' salaries increase signi?cantly.




Donald Dale, William Gryc

Date Published



Dale, Donald, and William Gryc. 2015. Re?finements to the MLB-NPB Posting System: A Clear Win for Japanese Players and Loss for Japanese Teams. Journal of Sports Economics.


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