沙中精魂

从空中俯瞰，刻画在沙漠上的线条仿佛长时间暴露在阳光下的画作，轮廓已模糊难辨。飞行员在秘鲁南部纳斯卡镇以北的荒漠高原上空急转盘旋，我只能依稀辨出地面上一系列描绘精美的图形。     

A dynamic model of regional population growth and decline

"This paper presents a two-sector dynamic model of regional population change. The model contains a migration equation, an earnings equation, and an amenity equation for each region. In the context of this model, migration is seen as a disequilibrium process through which the regional populations move towards equilibrium positions. Migration occurs when one region is perceived to be superior to the other on the basis of its earnings and amenity levels. Equilibrium is achieved when population movements between the regions eliminate any differences in their relative attractiveness. A comparative-static analysis of the model is presented to analyze the effects of policy changes and exogenous shocks on the distribution of population among the regions." The geographical focus is on the United States.     

再谈"娱乐旅行新的人流"

1965年我曾为《加拿大地理学家》杂共撰写了一篇题为"娱乐旅行:新的人流"的文章."十七年过去了,在这段时间中发生了一件大事,即石油输出国组织(OPEC)的兴起,它对我们日常生活和前途发展都曾有很大影响.现在正是一个适当的时机,来回顾一下1965年一位观察家〔指作者本人〕对世界旅游形势的估计和展望,以及1973—74年的大事和随之而来的"能源危机"对他估计的旅游前景的影响.     

Aged migration to coastal and inland centres in NSW

The household characteristics and migration behavior of elderly migrants in Australia are compared. The results indicate that "inland movers are significantly different [from] coastal movers in socioeconomic and demographic respects, such as age, mobility, the location of the nearest child and previous occupation."