¹ It should be noted, of course, that while the two concepts are logically distinct, there are obviously interrelations between the two in reality.

² This is not meant to imply that theoretical model-building has. no (long-run) practical value. Quite the contrary, I believe that such model-building is indispensable.

³ Cf. Shister, J., “The National War Labor Board: Its Significance” (Journal of Political Economy, 03, 1945, pp. 49ff.).Google Scholar

⁴ See Shister, J., “Trade Union Government: A Formal Analysis” (Quarterly Journal of Economics, 11, 1945, pp. 82ff.).Google Scholar

⁵ See Shister, J., “The Theory of Union Wage Rigidity” (Quarterly Journal of Economics, 08, 1943, passim).CrossRefGoogle Scholar

⁶ “In Defense of Monopoly” (Quarterly Journal of Economics, 08, 1945).Google Scholar

⁷ See Shister, J., “Note on Cyclical Wage Rigidity” (American Economic Review, 03, 1944, p. 113).Google Scholar

⁸ Cf. Myers, C. A. and Maclaurin, W. R., The Movement of Factory Workers (New York, 1943), passim.Google Scholar

⁹ I have taken up this point in far greater detail in a forthcoming paper.

¹⁰ See Roethlisberger, F. J. and Dickson, W. J., Management and The Worker (Cambridge, Mass., 1939).Google Scholar