Market Share Dynamics and the ‘Persistence of Leadership’ Debate
This paper introduces a novel analysis of the classic "persistence of leadership" question, and applies it to a newly constructed dataset for Japanese manufacturing. The analysis rests on an appeal to an empirical "scaling relationship" between current market share and the variance of changes in market share. This relationship provides a powerful "model selection criterion" for candidate models of market share dynamics. It also makes it feasible, even in small datasets, to test directly for the properties of the "first passage times" corresponding to loss of leadership.
|Date of creation:||Jan 2004|
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References listed on IDEAS
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- Mueller,Dennis C., 1986.
"Profits in the Long Run,"
Cambridge University Press, number 9780521306935, December.
- John Sutton, 1980. "A Model of Stochastic Equilibrium in a Quasi-Competitive Industry," Review of Economic Studies, Oxford University Press, vol. 47(4), pages 705-722.
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