Research Reports

Research reports are final reports from projects of broad interest. Peer reviewed and edited.

This study aims to investigate the extent of imbalance in the use of inorganic fertilizers in Vietnam. Due to lack of basic information, the analysis only infers on the relationship between the use of inorganic fertilizers with increased pest occurrences, and hence increased pesticide use. Health effects of pesticide use…
Increased vehicle emission in Colombo is one of the most important environmental issues that has drawn the attention of policymakers, administrators, and environmentalists in the recent past. Various studies undertaken by regulatory agencies and researchers clearly indicate that inefficient combustion of petroleum in motor vehicles is the primary cause of…
Industrialization has given birth to a new environmental problem in both developed and developing countries -- wastewater collection, disposal, and treatment. Inappropriate wastewater disposal is one of the major sources of water pollution in urban areas. The cost of wastewater collection, disposal, and treatment is an important component of the…
Dasgupta and Maler (1991) ruefully observed  "The fact that for such a long while environmental and development economics have had little to say to each other is a reflection of these academic disciplines; it does not at all reflect the world as we should know it." Fortunately for us, environmental concerns…
China began its program of economic reforms in 1978 and has enjoyed double-digit annual growth ever since. Agricultural reforms were implemented most aggressively (Lin 1992). Industrial reforms and industrial growth followed and, as in any rapidly industrializing economy, so did industrial pollution. Indeed, many see the environment as a casualty…
Paddy productivity and variable factors efficiency were calculated based on a farm survey. Logit regression was employed to relate econometrically a set of farmer characteristics to indicators of pesticide exposure to identify types of health impairments that may be attributed to prolonged pesticide use. Then, the pesticides' negative effects on…
By developing a model to estimate the environmental externalities associated with electricity generation, this project provides a detailed analysis of the damages and costs caused by different pollutants at varying distances from the Mawan Electricity Plant in Shenzhen, China. The major findings of this study are that (1) environmental damages…
In 1995 the contribution of the forestry sector to the Sri Lanka economy was nearly 1.3 percent of the Gross National Product (Central Bank of Sri Lanka, 1995). Its contribution to the national economy declined from 1.7 percent in 1988 to 1.4 percent in 1994 as can be seen in…
Since the late 1960s, economists have been developing methodologies to measure environmental impacts. Among the approaches most widely used are the travel cost method (TCM) and the contingent valuation method (CVM). Generally, these methods provide a reasonable approximation of the value of a non-marketed environmental good or service; their drawbacks…
Pollution, in general, can cause damages on natural resource systems which provide valuable though unpriced services to society. Oftentimes, the harmful effects of pollution are not considered by the polluter in decision-making, thus creating excessive environmental externalities. To estimate the externalities generated by pollution, it is necessary to develop economic…
Like most developing countries, Thailand has insufficient basic infrastructure such as roads, highways, and energy supply. Trying to overcome these deficiencies is the first step in the development process, and Thailand's National Economic and Social Development Plans, especially the First and the Second Plans, did just that. Electricity, one of…
Widespread water shortages in Metro Manila have made the urban water problem a central policy issue. President Ramos recently called a "Water Summit Meeting" and directed all concerned agencies to develop a short- and medium-term strategy for addressing the impending water crisis. In Congress, the Water Crisis Act was passed…
The objective of this paper is to address this research gap by looking into the issue of overfishing using a sectoral approach (i.e., in terms of commercial fisheries, municipal fisheries and total marine fisheries). It is hoped that the results will help show whether or not overfishing indeed exists as…
This paper presents findings from a study completed in May 1998 by WWF-Indonesia and EEPSEA to assess the economic value of damage caused by the 1997 fires and haze. The work was carried out by EEPSEA and WWF staff and academic researchers in Indonesia, Malaysia and Singapore, with methodological advice…
The upper Nanpan river in Qujing city, Yunnan province, China is heavily polluted. Its main stream (122 km long) is designated as water for industrial and agricultural use. However, the instream water quality is unsuitable for any use. Industrial discharges and municipal sources contribute significantly to the river's pollutant loads…
National parks benefit society in many ways. Besides their ecological functions, national parks also provide recreational benefits to park visitors and help earn foreign exchange from international travellers. In Thailand, more than 80 forest reserves have been declared national parks under the National Park Act of 1961. However, despite the…
Improving lake water quality is believed to increase the economic value of recreational resorts. However, few empirical estimates have been made in China to determine the value of the economic benefits brought about by such improvements. In this study, two non-market valuation methods, contingent valuation (CV) and travel cost (TC),…
For many developing countries, tropical forests represent an important resource base for economic development. If managed wisely, the forest has the capacity to provide a perpetual stream of income and subsistence products, while supporting other economic activities (such as fisheries and agriculture) through its ecological services and functions. Tropical forestland…
Mangrove ecosystems are a very important category of wetland systems that shelter coastlines and estuaries. Mangroves, especially in the tropics, are rich in flora and fauna. Their major environmental services include storm protection, shore stabilization, and control of soil erosion and flooding. They are also a biomass export and a…
The growing concern over environmental degradation has heightened the role of environmental economics and the valuation of natural resources as analytical tools that facilitate policy design for sustainable management. Research of the past four decades, however, has not provided reliable methods for measuring the economic value of most nonmarketable environmental…
This study presents an economic analysis of the different uses of the mangrove resource of Koh Kong province, Cambodia. The objective of the study is to provide information on the economic benefits and operational practices of key activities in the area that might be employed in the identification of an…
Ratanakiri is a richly forested province located in remote Northeast Cambodia. Forestland in Ratanakiri represents an extremely valuable natural resource that needs to be correctly managed if its benefits are to be maximised. Despite the lack of a land use plan for the province, a number of commercial development activities…
This study attempts to estimate the costs and benefits of managing forested catchments in Peninsular Malaysia. Two land use options are simulated in four selected catchments in the Hulu Langat Forest Reserve (HLFR), Selangor. The land use options considered are total protection (TP) or no logging in the catchment and…
By adopting both case study and survey methods in investigating enterprises' compliance behavior in dealing with the Pollution Charge System (PCS) in China, this project found that no matter what the existing fee level is compared to the optimal fee level, the enterprises respond to it in an economic way.…
The rapid growth, urbanization and migration in Metro Manila has increased water demand which has outpaced the capacity of the water agency, The Metropolitan Waterworks and Sewerage System (MWSS), to expand supply. Unserved sectors have resorted to well construction while others have resorted to tapping illegal connections to MWSS pipes.…
Economy and Environment Program for Southeast Asia