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Research to manage the Environment for Development

Recent publications


Climate Change and Food Security in Kenya

The paper investigates the effects of climate change on food security in Kenya. Fixed and random effects regressions for food crop security are estimated. The study further simulates the expected impact of future climate change on food insecurity based on the Special Report on Emissions Scenarios and Atmospheric Oceanic Global Circulation Models. The study is based on county-level panel data for yields of four major crops and daily climate variables data spanning over three decades. The results show that climate variability and change will increase food insecurity.


Assessment of the Potential Biomass Supply from Crop Residues in China

Using a mathematical programming model, we estimated the potential biomass supply from crop residues in China at various exogenously-given biomass prices and identified the areas that are likely to produce crop residues. Our analysis indicated that China can potentially produce about 153.0–244.2 million dry metric tons of crop residues per year when biomass prices are larger than $90 per metric ton. Rice straw is expected to account for about 47% of total residue production across the different biomass prices and residue production scenarios that we considered.


The Residential Demand for Electricity in Ethiopia

This paper examines the causality between residential electricity consumption and GDP in Ethiopia by using time series data for the period 1970–2011. Examining the link between economic growth and energy consumption can help policy makers design appropriate policy instruments.


Contingent valuation of community forestry programs in Ethiopia: Controlling for preference anomalies in double-bounded CVM

This study examines the welfare effects of community plantations in Ethiopia via contingent valuation. Both single-bounded and double-bounded survey methods were considered, and, with respect to double-bounded methods, the potential for anomalous response behaviour was also taken into account. The results generally confirm that there are statistically significant welfare benefits to be derived from community forestry; however, the range of the estimated benefits is large.


Household Energy Conservation in Kenya: Estimating the Drivers and Possible Savings

This paper uses the National Energy Survey Data for Kenya 2009 to investigate the main determinants of household energy conservation and savings, exploiting discrete choice and Tobit models. It estimatea conservation models for five household fuels—fuel wood, charcoal, kerosene, LPG, and electricity—and generates information to predict not only the odds for household energy conservation but also the levels of possible savings.


Optimal Health and Environmental Policies in a Pollution-Growth Nexus

Highlights   • We study a dynamic overlapping-generations model where pollution worsens risk of future ill health. • The paper shows why policies aimed at insuring health risks and those intended to improve the environment are (and should be) deeply intertwined. • Our model generates a “pollution-growth nexus” in which capital accumulation is attractive from a growth perspective but might hurt welfare. •


Voting under Tempatation

Within the confines of linear tax and complete market, we show that the efficiency force for a negative capital tax may not be strong enough to reverse the politico-economic force for a positive redistributive taxation under temptation and self-control preferences.