Abstract I. Introduction II. Social Welfare Maximizing Share in MOnopolistic Market 2.1 Model 2.2 Market determination of output 2.3 Determination of Social Welfare Maximizing Manager's Share in Social Equilibrium 2.4 Transaction of Manager's Share III. Change in optimum share according to market structure 3.1 Relatiohship between the manager's share and output quantity 3.2 Determanation of Social Welfare Maximizing Manager's Share in an Oligopolistic Market IV. Conclusion References 국문초록