Long waves and geography in the 21st century

Intersecting macrohistorical rhythms provide insights into the processes that will guide geographical change in the first half of the next century. The repetition of long-wave rhythms provides a key to what lies 25 and 50 years ahead, helping us to identify the patterns, determine the processes, and work out their logical consequences. To understand this it is necessary to clarify the concepts of 'techno-economic systems' and 'long waves of prices' and their interrelationships in 'growth logistics.' A second key to the next half-century is provided by the baby boom-baby bust generational rhythms that interlock with long waves and growth logistics at double the frequency. Together, the two keys not only provide a macrohistorical framework for unraveling the course of economic and social history; they provide a basis for geographical anticipations. (C) 1997 Elsevier Science Ltd.