I. Some shortcomings of traditional trade doctrine and the concept of income potential, 305. — II. Interregional input-output analysis and international trade, 310. — III. Conclusions, 318.

VI. Transport-oriented equilibrium under simplified conditions, 373. — VII. Transport-oriented equilibrium with realistic rate structures, 379. — VIII. Substitution between outlays and revenues and other forms of orientation, 390. — IX. Equilibrium with areal markets and material sources, 395. — X. Conclusions, 398.

I. Empirical regularities and the distance factor, 181. — II. The need for and definition of distance inputs, 186. — III. Distance inputs contrasted with capital inputs: spatial roundaboutness and extent of production; space preference and discounting, 190. — IV. Transport rate: the price of a distance input, 195. — V. Distance inputs and the classification of factors, 197.

I. Introduction, 476. — II. Early contributions to general location theory: the evolutionary approach of Alfred Weber, 479. — III. Predöhl and the substitution principle in location analysis, 482. — IV. The contribution of Hans Weigmann, 489. — V. The Lösch model of a space-economy operating under conditions of monopolistic competition, 494. — VI. The inter relation of trade and location theories, 502. — VII. Conclusion, 505.

Scope of the inquiry, 202. — I. Costs in generating power: inadequacy of the data available, 204; two estimates, 205; comparison with conventional power plants, 209; implications, 211. — II. Effects on real output, 213; on household consumption, 215. — Effects on the location of industry: diminished significance of agricultural differentials, 216; power differentials, 217; classification of large users of fuel and power, 218; effects on each, 218. — General considerations: concentration of industry, 222; technical inflexibilities in production, 224; cultural and institutional elements, 224; dynamic forces, 226.

Introduction, 90. — I. Innovations in transport technology and geographic location, 91. — Effect upon population movements, 93. — Upon building, 93.— The timing of innovations in transportation, 94. — Influence of rate structures, 95. — Effects upon consumer behavior, 96. — Influence of monetary conditions, 97. — II. Character of the statistical data, 98. — Six cycles in building and in transport development revealed, 101. —III. The impact of transport development upon building in Ohicago, 107. — IV. Implications for future transport developments and building booms, 111.

I. Impact of transport technology upon the United States economy, 145. — II. Costs of air transport, 149. — The rôle of aircraft in the future transport web, 153. — Private aircraft, 156. — Cargo movement, 157. — III. Implications of the foregoing: urban-metropolitan patterns, 161; investment outlets, 163; trade channels and commercial centers, 164; capital exports, 166; government aid, 166. — Appendix: the case of Brazil, 168.

I. Introduction, 97. — II. Empirical evidence on commodity flows over distance, 98. — III. Location theory and Graham's theory: a fusion, 104. — IV. Conclusions, 114.