POISSON GRAVITY MODELS OF SPATIAL FLOWS*

ABSTRACT The purpose of this paper is to bring together a number of results on spatial flow models, and to reformulate them within a unified probability framework based on Poisson frequencies. To do so, a class of discrete stochastic processes, designated as independent flow processes, is developed which not only yields a complete characterization of Poisson flow frequencies, but also allows a wide range of gravity-type flow models to be formulated within this distributional framework. In particular, a hierarchical classification of 12 model types is developed, and each model type is shown to be characterizable directly in terms of behavioral axioms on independent flow processes.     

French imperial outposts in post‐imperial India, 1947–54

Despite the end of the British Raj on 15 August 1947. the French initially sought to retain their imperial possessions on the Indian sub‐continent. By focusing on the conflict in Vietnam, however, conventional studies of French decolonisation tend to ignore French India. Nevertheless, the two problems of French India and Vietnam were closely linked, not least by the role played in both disputes by the government of India: the ending of the conflict in Vietnam in 1954, in which India played an important part, smoothed the French transfer of power in India.