Literature Cited
- Beach , C. M and Kaliski , S. F . 1986 . Structural unemployment: Demographic change or industrial structure . Canadian Public Policy , 12 : 356 – 67 .
- Dacey , M. P and Norcliffe , A . 1977 . A flexible doubly-constrained trip distribution model . Transportation Research , 11 : 203 – 04 . 10.1016/0041-1647(77)90020-X
- Evans , S . 1973 . A relationship between the gravity model for trip distribution and the transportation problem in linear programming . Transportation Research , 7 : 39 – 61 . 10.1016/0041-1647(73)90005-1
- Fotheringham , A. S and O'Kelly , M. E . 1989 . Spatial Interaction Models: Formulations and Applications , Dordrecht : Kluwer Academic Publishers .
- Guy , C. M . 1991 . Spatial interaction modelling in retail planning practice: The need for robust statistical methods . Environment and Planning B: Planning and Design , 18 : 191 – 203 .
- Hallefjord , A and Jörnsten , K . 1985 . A note on relaxed gravity models . Environment and Planning A , 17 : 597 – 604 .
- Islam , M. N . 1983 . The efficiency of interprovincial migration in Canada, 1961–1978 . Regional Science and Urban Economics , 13 : 231 – 49 . 12338957, 10.1016/0166-0462(83)90015-7
- Jaynes , E. T . 1957 . Information theory and statistical mechanics I . Physical Review , 106 : 620 – 30 . 10.1103/PhysRev.106.620
- Jefferson , T. R and Scott , C. H . 1979 . The analysis of entropy models with equality and inequality constraints . Transportation Research , 13 : 123 – 32 .
- Jörnsten , K. O , Larsson , T , Lundgren , J. T and Migdalas , A . 1990 . An entropy model with variable target . Environment and Planning A , 22 : 493 – 506 .
- Kaliski , S. F . 1984 . Why must unemployment remain so high? . Canadian Public Policy , 10 : 127 – 41 .
- Knudsen , D. C . 1985 . Exploring freight system change: U.S. rail freight flows, 1972–1981 . Annals of the Association of American Geographers , 75 : 539 – 51 .
- Kullback , S . 1959 . Information Theory and Statistics , New York : Wiley .
- Ledent J 1991 The notion of natural migration as a basis for measuring the relative contributions of push and pull factors to interregional migration. Unpublished manuscript, University of Quebec, Montreal, Canada
- Liaw , K. L . 1990 . Joint effects of personal factors and ecological variables on the interprovincial migration pattern of young adults in Canada: A nested logit analysis . Geographical Analysis , 22 : 189 – 208 .
- Mayhew , L. D , Gibberd , R. W and Hall , H . 1986 . Predicting patient flows and hospital case-mix . Environment and Planning A , 18 : 619 – 38 .
- Miller , F. C . 1987 . The natural rate of unemployment: Regional estimates and policy implications . Canadian Journal of Regional Science , 10 : 63 – 76 .
- Newbold , K. B and Liaw , K.-L . 1990 . Characterization of primary, return, and onward interprovincial migration in Canada: Overall and agespecific patterns . Canadian Journal of Regional Science , 13 : 17 – 34 .
- Plane , D. A . 1981 . Estimation of place-to-place migration flows from net migration totals: A minimum information approach . International Regional Science Review , 6 : 33 – 51 . 12312181
- Plane , D. A . 1984 . A systemic demographic efficiency analysis of U.S. interstate population exchange, 1935–1980 . Economic Geography , 60 : 294 – 312 . 12313418
- Pooler , J. A . 1988 . “ Spatial interaction models incorporating serial dependency effects ” . In Geographical Systems and Systems of Geography, Essays in Honour of William Warntz , Edited by: Coffey , W. J . 89 – 100 . London, Ontario : Department of Geography, University of Western Ontario .
- Pooler , J. A . 1992 . Spatial uncertainty and spatial dominance in interaction modelling: A theoretical perspective on spatial competition . Environment and Planning A , 24 : 995 – 1008 .
- Rogerson , P. A and Plane , D. A . 1984 . Modeling temporal change in flow matrices . Papers of the Regional Science Association , 54 : 147 – 64 .
- Roy , J. R . 1987 . An alternative information theory approach for modelling spatial interaction . Environment and Planning A , 19 : 385 – 94 .
- Roy , J. R and Flood , J . 1992 . Interregional migration modeling via entropy and information theory . Geographical Analysis , 24 : 16 – 34 .
- Samson , L . 1985 . A study of the impact of sectoral shifts on aggregate unemployment in Canada . Canadian Journal of Economics , 18 : 518 – 30 .
- Slater , P. B . 1989 . A field theory of spatial interaction . Environment and Planning A , 21 : 121 – 26 .
- Smith , T. E . 1978 . A cost-efficiency principle of spatial interaction behavior . Regional Science and Urban Economics , 8 : 317 – 37 .
- Snickars , F and Weibull , J. W . 1977 . A minimum information principle: Theory and practice . Regional Science and Urban Economics , 7 : 137 – 68 . 10.1016/0166-0462(77)90021-7
- Statistics Canada . 1983 . International and Interprovincial Migration in Canada , Ottawa : Minister of Supply and Services . Catalog 91–208
- Thomas , D. S . 1941 . Social and Economic Aspects of Swedish Population Movements: 1790–1933 , New York : The Macmillan Company .
- Thomas , R. W and Huggett , R. J . 1980 . Modelling in Geography: A Mathematical Approach , Totowa, NJ : Barnes and Noble .
- Tobler , W. R . 1980 . A model of geographical movement . Geographical Analysis , 13 : 1 – 20 .
- Vanderkamp , J and Grant , E. K . 1988 . Canadian internal migration statistics: Some comparisons and evaluations . Canadian Journal of Regional Science , 11 : 9 – 32 . 12282009
- Weber , J . 1987 . Elasticities of constrained gravity Models . Journal of Regional Science , 27 : 621 – 40 .
- Williams , P. A and Fotheringham , A. S . 1984 . “ The calibration of spatial interaction models by maximum likelihood estimation with program SIMODEL ” . In Geographic Monograph Series 7 , Bloomington, IN : Department of Geography, Indiana University .
- ∗The support of the Social Sciences and Humanities Research Council of Canada research grant #410–87–1373 is acknowledged gratefully, as are the helpful comments of the referees.