‘The dilemmas and paradoxes of public bodies performing commercial tasks’: The rhetoric of rationality and the rejection of traditional labor philosophy on the role of the state.

Traditionally a commitment to an active public sector has been a centrepiece of Labor's official thinking. Rhetorical conflict between Labor and non‐Labor has always focused upon the role of the State. The most recent instance of this was the debate between Labor and non‐Labor over the Fraser Government's Review of Commonwealth Functions (commonly known as the ‘Razor Gang').

Traditions have been changing and developing on both sides. The changes made by E. G. Whitlam have been widely discussed. Three years and as many months after the election of the first Hawke Government Labor traditions themselves are being rewritten.

In this paper I shall use the policy area of the function and administration of public sector enterprises in order to demonstrate the depth and significance of this change. It has been said also that the Hawke Government has reduced politics to pronouncements from the Kirribilli Cabinet and non‐productive factional squabbling. The ‘fourth graders’ of the Hawke Government, which apparently includes members of the outer Cabinet as well as the backbenchers, have been excluded from the policy‐making process. This is notwithstanding the firm intentions of the Report of Task Force on Government Administration.

The public sector area can be used to demonstrate shifts along four axes, (i) Significant frontbenchers have been bent upon changing the rhetoric, so that the activities of public sector enterprises are assessed in terms like ‘efficiency’ and ‘dollar rationality’. Change in rhetoric is part of a wider tendency to reject appeals to traditional Labor imagery (such as equality, welfare, the public sector as a good in its own right and other social as opposed to economic goals).

(ii) This, in turn, is related to a rejection of the traditional Labor practices whereby the Labor Party Platform (which could broadly be seen as a pro‐public enterprise document) is no longer seen by significant members of the Labor front‐bench as the most important guide to policy, (iii) Other sources of policy have become more salient, in the case of public sector enterprises, the rhetoric and ideas of the Department of Finance have become prominent (iv) The changing tone of the rhetoric has reflected to a small extent changes being made to official party theology as expressed in the Party Platform. Key individuals have successfully opposed left‐wing challenges to maintain and to shore up the role of the public sector and of public sector enterprises. To the extent that the Platform will retain its traditional symbolic role these activities are significant.

Policy‐making has been about domination from above and the ‘crowding out’ of traditional ideas and their sources. Control, however, has not always been successful. Sources of objection have included the Left Faction of Caucus, key Ministerial Departments (viz. Transport and Communications) dealing with public sector enterprises, and the Ministers themselves.     

Book reviews

Australian politics

Cora Vellekoop Baldock, Volunteers in Welfare (Sydney: Allen & Unwin, 1990) pp.xii + 171. $19.95 ISBN 0 04 442213 X.

Hugh V. Emy and Andrew Linklater (eds.), New Horizons in Politics: Essays with an Australian Focus (Sydney: Allen & Unwin, 1990) pp.vii+207. $17.95 ISBN 0 04 442269 5.

P. Hay, R. Eckersley and G. Holloway, Environmental Politics in Australia and New Zealand (Hobart: University of Tasmania, 1989) pp.200. $n.p. ISBN 0 85901 405 3.

Peter Larmour (ed.) The Greening of Government: The Impact of the Labor/Green Accord on Government in Tasmania (Hobart: Royal Australian Institute of Public Administration, 1990) pp.iv + 74. $12.00.

Ian McAllister, Malcolm Mackerras, Alvaro Ascui and Susan Moss Australian Political Facts (Longman Cheshire, 1990) pp.x + 234. $12.99 ISBN 0 582 71258 0.

John Summers, Dennis Woodward and Andrew Parkin (eds.), Government, Politics and Power in Australia (Melbourne: Longman Cheshire, 4th edition, 1990) pp.375. $n.p. 0 582 86843 2.

Comparative and international politics

Archie Brown (ed.), Political Leadership in the Soviet Union (London: Macmillan, 1989) pp.xi + 245. $14.99 ISBN 0 333 41343 1.

Henry P. Frei, Japan's Southward Advance and Australia—from the sixteenth century to World War II (Melbourne: Melbourne University Press, 1991) pp.xvii + 303. $34.95 ISBN 0 522 843921.

Manuel Antonio Garreton, The Chilean Political Process (Translated by Sharron Kellum and Gilbert W. Merkx) (London: Unwin Hyman, 1989) pp.xix + 220. $39.95 ISBN 0 04 497069 2.

Timothy Garton Ash, We The People, The Revolution of ‘89, Witnessed in Warsaw, Budapest, Berlin & Prague (Cambridge: Granta Books, 1990) pp.156. $12.99 ISBN 0 14 014023 9.

Misha Glenny, The Rebirth of History: Eastern Europe in the Age of Democracy (London: Penguin, 1990) pp.xiii + 245. $14.99 ISBN 0 14 014394 7.

Dennis Gilbert, Sandinistas: the party and the revolution (Oxford: Basil Blackwell, 1988, paperback edition, 1990) pp.xii + 238. $29.95 ISBN 1 55786 072 6.

Dennis Kavanagh and Peter Morris, Consensus Politics from Attlee to Thatcher (Basil Blackwell, 1989) pp.ix + 137. £6.95 ISBN 0 631 16566 5.

Institute of Southeast Asian Studies, Southeast Asian Affairs 1990. (Southeast Asian Studies, 1990) pp.x + 395. $US37.00 ISBN 0377 5437.

David Lane, Soviet Society under Perestroika (Boston: Unwin Hyman, 1990) pp.xv + 401. $34.95 ISBN 0 04 445167 9.

Ralph Miliband, Divided Societies: Class Struggle in Contemporary Capitalism (Oxford: Clarendon Press, 1989) pp.x + 277. $n.p. ISBN 0–19827535–8.

J.D.B. Miller and John Vincent (eds.), Order and Violence: Hedley Bull and International Relations (Oxford: Clarendon Press, 1990) pp.viii + 220. $55.00 ISBN 0 19 827555 2.

Peter Riddell, The Thatcher Decade: How Britain has changed during the 1980s (Oxford: Basil Blackwell, 1989) pp.x + 236. $39.50 ISBN 631 16274 7.

Carlyle A. Thayer, War by Other Means: National Liberation and Revolution in Vietnam 1954–1960 (Sydney: Allen and Unwin, 1989) pp.xxx + 256. $19.95 ISBN 0 04 370187 6.

Malcolm Waters, Class and Stratification: Arrangements for Socioeconomic Inequality Under Capitalism (Melbourne: Longman Cheshire, 1990) pp.ix + 199. $n.p. ISBN 0 582 86833 5.

Political theory and methodology

Rodney Barker, Political Legitimacy and the Stale (Oxford: Clarendon Press, 990) pp. 216. $62.50 ISBN 0 19 827495 5.

John Braithwaite and Philip Pettit, Not Just Deserts (Oxford: Clarendon Press, 1990) pp.viii + 229. $65.00 ISBN 0 19 824233 6.

David Gauthier, Moral Dealing: Contract, Ethics, and Reason (Ithaca: Cornell University Press, 1990). pp.377. $14.95 ISBN 0 8014 2431 3.

G.T. Kaplan and C.S. Kessler (eds.), Hannah Arendt (Sydney: Allen and Unwin, 1989) pp.xi + 178. $16.95 ISBN 0 04 920109 3.

David W. Lovell, Marx's Proletariat: The Making of a Myth (N.Y.: Routledge, 1988) pp.261. $27.59 ISBN 0–415–00116–1.

Schmidtz, David. The Limits of Government: An Essay on the Public Goods Argument (Boulder: Westview Press, 1991) pp.xviii + 197. $21.00 ISBN 0 81 330871 2.

Michael Thompson, Richard Ellis, Aaron Wildavsky, Cultural Theory (Boulder, San Francisco and Oxford: Westview Press, 1990) pp.xiv + 296. $49.95 ISBN 0 8133 7863 X.     

Thermal convection in faulted extensional sedimentary basins: theoretical results from finite-element modeling

Thermal convection has the potential to be a significant and widespread mechanism of fluid flow, mass transport, and heat transport in rift and other extensional basins. Based on numerical simulation results, large‐scale convection can occur on the scale of the basin thickness, depending on the Rayleigh number for the basin. Our analysis indicates that for syn‐rift and early post‐rift settings with a basin thickness of 5 km, thermal convection can occur for basal heat flows ranging from 80 to 150 mW m^?2, when the vertical hydraulic conductivity is on the order of 1.5 m year^?1 and lower. The convection cells have characteristic wavelengths and flow patterns depending on the thermal and hydraulic boundary conditions. Steeply dipping extensional faults can provide pathways for vertical fluid flow across large thicknesses of basin sediments and can modify the dynamics of thermal convection. The presence of faults perturbs the thermal convective flow pattern and can constrain the size and locations of convection cells. Depending on the spacing of the faults and the hydraulic properties of the faults and basin sediments, the convection cells can be spatially organized to align with adjacent faults. A fault‐bounded cell occurs when one convection cell is constrained to occupy a fault block so that the up‐flow zone converges into one fault zone and the down‐flow zone is centred on the adjacent fault. A fault‐bounded cell pair occurs when two convection cells occupy a fault block with the up‐flow zone located between the faults and the down‐flow zones centred on the adjacent faults or with the reverse pattern of flow. Fault‐bounded cells and cell pairs can be referred to collectively as fault‐bounded convective flow. The flow paths in fault‐bounded convective flow can be lengthened significantly with respect to those of convection cells unperturbed by the presence of faults. The cell pattern and sense of circulation depend on the fault spacing, sediment and fault permeabilities, lithologic heterogeneity, and the basal heat flow. The presence of fault zones also extends the range of conditions for which thermal convection can occur to basin settings with Rayleigh numbers below the critical value for large‐scale convection to occur in a basin without faults. The widespread potential for the occurrence of thermal convection suggests that it may play a role in controlling geological processes in rift basins including the acquisition and deposition of metals by basin fluids, the distribution of diagenetic processes, the temperature field and heat flow, petroleum generation and migration, and the geochemical evolution of basin fluids. Fault‐bounded cells and cell pairs can focus mass and heat transport from longer flow paths into fault zones, and their discharge zones are a particularly favourable setting for the formation of sediment‐hosted ore deposits near the sea floor.