Published online by Cambridge University Press: 27 January 2009
In the only official policy position ever taken by the American Political Science Association, it advocated the transformation of American political parties into a strong, centralized two-party system. Olson has proposed a detailed explanation of why Westminster political systems and parties will produce more efficient public policy than weak, decentralized political parties. He argues that centralized political parties in two-party political systems are ‘encompassing’ and, hence, have an incentive to minimize redistributive policies. Olson thus provides a justification for the policy position taken by the APSA. I evaluate Olson's explanation from the perspective of Tullock's rent-seeking behaviour argument and the deadweight losses needed for Olson's argument to hold. An alternative formulation of encompassing organizations is presented and contrasted with Olson's definition as it applies to political institutions. Finally, an empirical test of the responsible and Westminster party systems arguments is provided. The evidence presented here rejects the claims of the Westminster and responsible party models.
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6 The definitions of ‘encompassing’, ‘deadweight losses’ and ‘Westminster parties’ are open to debate. I will present exact definitions below, after reviewing various definitions.
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8 Taken from Olson, , ‘A Theory of the Incentives Facing Political Organizations’.Google Scholar
9 In the presentation, like Olson, I will analyse the effects on income, not wealth. Wealth raises separate problems that must be dealt with in another paper.
10 Both groups, as will be shown below, are encompassing. However, the second group will have an incentive to stop all rent-seeking behaviour, while the first group will only reduce its rent-seeking behaviour. The rent-seeking group will pursue redistributive policies if they are profitable, that is, if the gains exceed the costs to the group. The rent seekers are not deterred if their policies impose net losses on society as a whole.
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13 The relationship between Harberger's consumer surplus loss, Tullock, 's ‘unproductive’Google Scholar lobbying costs and private costs of lobbying is not necessarily linear and additive. For a good exposition, see Bhagwati, , ‘Directly-Unproductive’.Google Scholar A general equilibrium analysis of rent seeking, which requires a separate paper, is necessary to show all the possible relations between the three.
14 The distinction between productive and unproductive activities has a long history in economics. The Physiocrats – for example, Mirabeau and Quesnay – first made the distinction. They argued that farming was the only productive economic activity and that manufacturing was unproductive. Classical economists like Smith and Marx took over the distinction, but the specific activities included in each category differed from the Physiocrats. Marx denned labour expended in the manufacturing of products or farming as productive activity, while he considered managerial labour and all labour engaged in the service sector as unproductive. Neoclassical economists have simply dropped the distinction.
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23 Magee, , Brock, and Young, 's evidence (see Black Hole Tariffs)Google Scholar for their analysis is a negative correlation between lawyers per 100,000 population and the economic growth rate.
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26 A discrete or continuous measure would require a metric for all three characteristics. However, I know of no theoretical basis for the required weights or metric.
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28 Two and a half party systems are those with several parties, but where two parties dominate. Either dominant party forms a ruling coalition with a minority party. Hence, the dominant party is held accountable.
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41 Choi, , ‘A Statistical Test of Olson's Model’Google Scholar, presents a full description of the construction of the index. I use his Index B. I also ran the analysis with his Index A, and as in Choi's analysis, the findings the same.
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48 A number of different specifications were tried. For example, concurrent systems were coded 1.5, that is, between executive and legislative dominated. In none of the variations did the (EXECUTIVE) variable reach statistical significance.
49 In this article I have presented only a detailed exposition of Olson's Westminster model of political parties. I just claim that the responsible party model of the APSA is essentially identical to the Westminster model. See Jankowski, Richard, ‘Westminster and Responsible Parties: A Comparison’ (unpublished manuscript, for a detailed exposition of the linkages between the responsible and Westminster models).Google Scholar
50 Magee, , Brock, and Young, , Black Hole Tariffs.Google Scholar
51 See Jankowski, Richard, ‘A Missing-Market Interpretation of the Paradox of Vote Trading’ (paper presented at the Public Choice Society Meetings, 1989)Google Scholar for a possible explanation of the findings that does not rely upon the encompassing character of political institutions.
52 Finer, , Adversary Politics and Electoral ReformGoogle Scholar; also, The Changing British Party System, 1945–79.
53 The Australian lower house uses a preferential voting rule in single-member districts.
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57 Tullock, G. and Buchanan, J., The Calculus of Consent (Ann Arbor: University of Michigan Press, 1962)Google Scholar; Weingast, Barry and Marshall, William, ‘The Industrial Organization of Congress: Or Why Legislatures, Like Firms, Are Not Organized as Markets’, Journal of Political Economy, 96 (1988), 132–63.CrossRefGoogle Scholar
58 Hence, transaction costs that undermine the efficacy of Coase's private bargaining might also preclude encompassing political institutions.
59 Another line of inquiry is to establish an alternative set of deadweight losses which are based on economic conditions. The most wide-ranging work on deadweight losses is found in the extensive optimal tax literature. But the maximum deadweight losses (excess burden) established by this literature is only a fraction of the revenues (redistributive gains?) raised. See Fullerton, Don, ‘Reconciling Recent Estimates of the Marginal Welfare Cost of Taxation’, American Economic Review, 81 (1991), 302–8Google Scholar, for a discussion of empirical estimates of the excess burden of taxation.
60 Cellular encompassing organizations are better mechanisms for reducing redistributive policies because they perform their function even if the deadweight gains are smaller than the redistributive gains. Olson's encompassing organizations cast a much coarser net because they only constrain redistributive policies which have deadweight losses twice the size of redistributive gains.
61 This linkage between the effects of institutions and their microfoundations is controversial because it requires a selection mechanism. Such a mechanism has not been established for social phenomenon, as opposed to natural selection for biological systems.
62 Additional effort must also be given to expand Vanhanen's measure of political systems and Blondel's measure of party competition. At present, they are based on an impressionistic reading for a number of countries.
63 Shepsle, , ‘The Role of Institutional Structure’.Google Scholar
64 See Jankowski, , ‘A Missing-Market Interpretation of the Paradox of Vote Trading’Google Scholar, for an effort along these lines.
65 An example illustrating the need for an integrated analysis is seen if we assume that vote-trading promotes economic efficiency. In this case, strongly centralized political parties will retard economic efficiency because centralized political parties limit vote-trading among their members. By contrast, if vote-trading reduces economic efficiency, strong parties are needed to prevent vote-trading. Any complete analysis of interest aggregation must examine all the institutions simultaneously to determine their ultimate effect.