Markov Models of Inertia and Dynamism on Two Contiguous Ohio Landscapes

This study examined landcover change during 1940–1988 in two contiguous landscapes of approximately 12,400 hectares in central Ohio, USA: an inertial till plain area and a more dynamic moraine area. Agriculture dominated both landscapes throughout, however, the cover of natural vegetation and urban-suburban development increased over time on the moraine while natural vegetation decreased and agriculture increased on the till plain. Markov process models for landcover change were constructed for three 14–17-year time intervals and for the entire forty-eight-year study period. Probabilities of self-replacement for agricultural lands (0.91–0.97) were higher and those for forests (0.54–0.65) lower than those reported for other landscapes. Predictions of landcover percentages for fifty years in the future were made using Markov process models derived from actual cover changes in 1940–1957, 1971–1988, and 1940–1988. All three models produced similar predictions for the inertial till plain area. In contrast, the three models' predictions differed considerably for the moraine area. Only the 1971–1988 transition matrix was sensitive to increases in urbanization and reforestation which began on the moraine in the 1970s. These results indicate that reliance on lengthy study intervals and net rates of change can obscure spatial and temporal patterns of landcover change that are caused by natural and socioeconomic factors operating on shorter time scales.     

In Search of Competitive Efficiency: Labour Process Flexibility in Canadian Newsprint Mills

This paper focuses on the strategies for production and work reorganization pursued in the Canadian newsprint industry during the 1990s. Many newsprint mill managers view new pulping technologies and increased labour process flexibility as the important keys to success in their never-ending quest to remain competitive in the U.S. market. These strategies are discussed in the context of two underlying themes: the nature of the particular competitive pressures faced by Canadian newsprint producers in the early 1990s and the specific nature of the labour process in newsprint mills. Evidence points to the central importance of achieving functional labour flexibility in newsprint mills and to the fact that numerical labour flexibility is not a viable strategy, given the continuous-process nature of the industry.
The Economics of Production, Technological Change, and Cost Competitiveness in the Newsprint Industry
Work Practices and Labour Conventions in the Newsprint Industry
Flexibility and the Quest for Competitive Efficiency in Canadian Newsprint Mills     

For Whom is the Rural Economy Resilient? Initial Effects of Drought in Western Sudan

This discussion piece addresses two recent debates: entitlement theory and the resilience of rural systems. The authors find that in western Sudan entitlement theory provides a specific and useful framework for understanding the nature of the crisis confronting the society. Arguments about the resilience of rural systems, however, need to be more closely examined and will depend on site-specific factors. The rural economy and society of western Sudan were not found to be resilient.     

Demand in the Spatial Economy: II Homo Stochasticus

Probabilistic preferences and choices and their connections to trip making and to distance-related demand are discussed. They are seen to aid aggregation. Risk aversion in retail shopping behavior and entropy maximizing as rational random behavior are examined. Elasticity of substitution is presented in terms of the covariance matrix. A Markovian phrasing and potential theory allow an analogy with deterministic choice: various applications of potential operators are outlined. Changes in utilities can only be modeled stochastically and some mechanisms are detailed. Price changes are random walked in time and space as a diffusion process. A fairly coherent theory of spatial demand emerges     

Graph Theory Interpretation of Flow Matrices: A Note on Maximization Procedures for Identifying Significant Links

A maximization procedure for identifying significant links in a flow matrix is described and its use illustrated. The method appears to have advantages over primary-flow linkage methods and over methods based on flow-combination procedures.     

Making federalism work—The state perspective

Making Federalism Work: Towards a More Efficient, Equitable and Responsive Federal System, edited by Russell Mathews. Centre for Research on Federal Financial Relations, ANU, Canberra, 1976. pp. xiv + 219.

Labor and the Constitution 1972–1975: The Whitlam Years in Australian Government, edited by Gareth Evans. Heinemann, Melbourne, 1977. pp. xv + 383.

The Government of Tasmania, by W. A. Townsley. University of Queensland Press, St. Lucia, 1976. pp. xii + 169.

The Government of Victoria, by Jean Holmes. University of Queensland Press, St. Lucia, 1976. pp. ix + 205.

The Government of South Australia, by Dean Jaensch. University of Queensland Press, St. Lucia, 1977. pp. vii + 203.

Administrative Federalism: Selected Documents in Australian Intergovernmental Relations, compiled land edited by Kenneth Wiltshire. University of Queensland Press, St. Lucia, 1977. pp. xiii + 309.