In this paper we examine the adaptability of the Japanese style lean organization system and the traditional American style mass organization system under changing environments. From an organizational design perspective, key structural aspects of the two organizations are modeled in a problem solving context using computational methods. Organizational-level performance in terms of decision making accuracy and severity of errors is measured as an indicator of organizational adaptability under conditions where the task environment shifts between predictable to unpredictable or vise versa. Our study shows that both organizations have their respective advantages under different task environments and that they adapt to environmental shifts in different forms. Specifically, when the time pressure is high the lean organization system’s performance is virtually identical to the mass organization system, even though the lean organization system’s members are more proactive. When the time pressure is low, the mass organization system shows a much faster adaptability when the environment shifts to a predictable one but it is also more vulnerable when the environment shifts to an unpredictable one. In contrast, the lean organization system’s response to the changing environment is characterized by its slower adaptability. When the environment shifts to an unpredictable one, the lean organization system shows a gradual improvement till reaching a high level. When the environment shifts to a predictable one, however, the lean organization system shows a gradual

the New York State Board of Regents, and education scholars, researchers and policymakers from New York and around the country. By bringing education researchers together with policymakers, the Consortium seeks to address critical questions about the state of public education in New York. The Consortium’s mission is to foster an exchange of information and ideas that informs education policy decisions, assist education policy decision-makers in identifying issues that require initial or further study, and produce quality and timely research that contributes to the development of sound education policy. The Consortium is housed in the Center for Policy Research, Rockefeller College of Public Affairs & Policy, University at Albany – SUNY. Condition reports are written using education data compiled by New York State agencies and from data independently collected by the researchers. Consortium researchers work closely with agency staff to identify and analyze trends in school district spending, school staffing and student performance. The condition reports describe various characteristics of New York State's public school systems and also identify potential areas for further study.

Author’s address: