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by Stephen Smith While most people associate cities with pollution and the material and ecological excess of late capitalism, I’ve long believed that urbanization has the potential to be a great environmental savior. The NYT has a fascinating article that confirms what I said about cities attracting people who would otherwise live more environmentally profligate lives: the amount of total rain forest is likely growing, due to the reforestation of towns and villages abandoned by people in Latin America and Asia who are moving to cities. Elisabeth Rosenthal, the article’s author, explains the reasons that people are abandoning land at a growing pace: In Latin America and Asia, birthrates have dropped drastically; most people have two or three children. New jobs tied to global industry, as well as improved transportation, are luring a rural population to fast-growing cities. Better farming techniques and access to seed and fertilizer mean that marginal lands are no longer farmed because it takes fewer farmers to feed a growing population. By some estimates, these demographic and technological shifts mean that forests are growing back far faster than they’re being cut down: These new “secondary” forests are emerging in Latin America, Asia and other tropical regions at such a fast pace that the trend has set off a serious debate about whether saving primeval rain forest – an iconic environmental cause – may be less urgent than once thought. By one estimate, for every acre of rain forest cut down each year, more than 50 acres of new forest are growing in the tropics on land that was once farmed, logged or ravaged by natural disaster. There are two problems, though, with the new forests: they aren’t “old growth” forests, and they aren’t necessarily able to support many endangered species. The first part – the fact […]
Environmental and Urban Economics – Commuting Cost Arithmetic When people work in the suburbs, will they save many gallons of gasoline if they move to the center city? Yes, they will be closer to their center city friends and stores but they will still need to reverse commute by car to their jobs (unless they can ride the Google Bus from Center City San Fran to Mountainview). So this raises the question of whether high gas prices will push employers to move back to the center city? Employers who need land (think of Google) will be unlikely to want to rent out 35 stories of a skyscrapper. Total One Way commute cost = price of a gallon of gas + hourly wage Case #1: you make minimum wage = 5 + 7 = 12 and the share of expenditure on gas = 5/12 Case #2: Ivy League graduate = 5 + 100 = 105 and the share of expenditure on gas = 5/105 So this simple example highlights how the wage can swamp the price of gas for the high skilled but for the less educated, gas is a huge part of the commute cost. Interesting point. CBDs tend to attract highly talented workers, who tend to earn higher salaries. So, will those people have the incentive to move closer? Probably not much. However, there are plenty of middle wage workers who commute to CBDs, and may be tempted to locate closer. But, a firm that desires to attract the most talented workers will most likely locate in the CBD anyway. Thus, I wouldn’t expect as much difference in firm location preference, compared with the shifts in housing location preference. Those who work in suburban locations may end up moving closer to their jobs, making living patterns more compact near […]