The advent of international advertising, electronic communications and wide access to the mass media have fed a worldwide public appetite for new and more products, and for travel. Rising affluence has fueled the 'Western' model of consumption, and its emulation all over the world. And, though developing countries still account for less than 20 per cent of global GDP, many of their people are joining the consumer society. Per capita incomes are rising, and habits of diet, mobility and resource consumption are changing to reflect industrial country patterns.