Livestock production in Vietnam is, as in most Asian countries, increasing rapidly and changing into specialized highly intensified operations. The volume of animal excreta generated exceeds the capacity of the operation land base and cannot be utilized efficiently. As a consequence, there is a loss of plant nutrients from livestock farms that causes environmental pollution. This study carried ...

I investigate changes in the structure of trade of seventeen transition economies between 1996 and 2006, focusing on differences across three types of products – homogeneous goods, reference priced goods, and differentiated products. I examine shares of exports of each type of good, intensive and extensive margins, and the hazard of exporting. While there are cross-country differences in the di...

The amount of wastewater depends on the technical level of process in each industry sector and will be gradually reduced with the improvement of industrial technologies. The increasing rates of industrial wastewater in developing countries are thought to be much higher than those in developed countries. This fact predicts that industrial wastewater pollution, as a mean environment pollution pro...

Increasing concern exists over the adverse effects of air pollution on human health. Epidemiological studies have shown a clear association between cardiovascular morbidity, decreased lung function, increased hospital admissions, mortality, and airborne concentrations of photochemical and particulate pollutants. Human exposure chamber studies of specific pollutants have shown that short term ex...

Pollution emitted by US manufacturers has been declining steadily over the past several decades, while at the same time, the real value of manufacturing output has been increasing. This cleanup has two sources: advances in production or abatement processes (“technology”), and changes in the composition of goods manufactured in the United States. The composition changes can be divided further in...