Research on the Evolution of the Productivity Management Working with the Wage System at Toyota

2016 Fiscal Year Final Research Report

• Project/Area Number: 25380426
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Economic history
• Research Institution: Okayama University
• Principal Investigator: Shimizu Koichi 岡山大学, 社会文化科学研究科, 特命教授 (00235649)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: トヨタ生産方式 / 原価・能率管理 / 大野耐一 / 歩合制度 / 生産手当（生産性給） / 歩合会議 / 生産性評価制度

Outline of Final Research Achievements

The Toyota Production System is well known in its technical aspects like leveled production, Just-In-Time production, and “Jidoka” for carrying out Kaizen to increase productivity and to decrease production cost. However, the Toyota Production System had its particular management system of productivity, closely linked to a part of the wage, called “productivity allowance”, worked up by Taiichi Ohno from 1948 to 1971. This productivity management system remained unknown for us, outsiders. Based on interviews with the company, this study elucidates in detail the institutional framework of this productivity management working with the wage system and the evolution of such management system from 1948 to 2011, emphasizing the fact that this productivity management system of Ohno was abolished in 2004.

Free Research Field

経済学