摘要：In a recent article (Bailly and Coffey 1994) make a strong case for the importance of scale effects in applied regional science. In a plea for a more applied regional science, three principles are presented, including: Principle 3.2: When treating space and time, it is necessary to recognize the effects ofemploying varying scales ofanalysis. "... the choice of spatial scale can exert an important influence upon our work." "Indeed, the flexibility of spatial scale associated with the concept "region" needs to be treated carefully. Consider, for example, the practical implications of formulating and implementing regional development policies in Canada, a vast country with 10 traditional administrative regions, and in Switzerland, a tiny country in which regional policy is administered in over 100 regions!"
