Leiwen Jiang
Assistant Professor of International Studies (Research):
Watson Institute for International Studies
Phone: +1 401 863 3861
Leiwen_Jiang@Brown.EDU
Leiwen Jiang is interested in population-environment studies by applying a multi-method approach and carefully exploring the environmental implications of demogrpahic dynamics. His research portfolio has involved methodological work on improving demographic components of integrated environment assessment models, urbanization and energy transition, population migration and land degradation, population dynamics and housing condition in China, and development of new population and household models.
Biography
Jiang received his Ph.D. in environmental sciences (specified in demography) from the University of Amsterdam in 1999. He conducted post-doc research at Max Planck Institute for Demographic Research, and was Visiting Scholar at Vienna Institute for Demography, Summer Faculty Fellow at the Center for Institutional, Population and Environmental Change, Indiana University. Prior to joining Brown in 2002, he was Associate Professor at Institute of Population Research, Peking University. He is also Guest Researcher at International Institute for Applied System Analysis and Adjunct Professor at Peking University.
Interests
Jiang investigated how demographic compositional changes affected energy consumption and carbon emission in the US, China, India, and Europe. Using household survey data, this research revealed that population aging was important to the changes of energy use in the US, while urbanization and household size changes accounted for a large proportion of China's recent decrease of per capita residential energy consumption. Adopting the ProFamy model, Jiang made household projections for the US and China. Integrated analysis of characteristics of cross-sectional household energy use and household projection results reveals that population aging will significantly drive energy consumption downward in the US, and in some cases will exert an even more important effect on carbon emission than technological changes.
Jiang pays close attention to electrification and use of renewable energy resource among rural households of China. His research finds that residential energy transition from biomass to modern fuel in China plays an important role in the local and global environment changes, yet it is at an early stage. He is now extending the analysis to improving understandings of the effects of urbanization on energy use in the developing regions, and to adopt an integrated assessment model on the impacts of urbanization on land use.
To meet the increasing requirements for better understanding future household dynamics, Jiang is devoted to improving methodology of household modeling. He aims at developing a new household projection model which on the one hand, integrates knowledge about future changes of demographic events into household dynamics and provides sufficient information for the analysis of socioeconomic and environmental trends; and that on the other hand, significantly reduces the amount of data requirement, which is a key problem hindering application of the more complicated household models. Using the ProFamy model and US household projection input file, he further investigates the relative importance of various demographic events on household formation, and projects the possible ranges of future US household compositional changes.
Funded by the Wellcome Trust Foundation, Jiang studies the impact of population migration on land degradation in Xinjiang, China. This research provides a classic case of population-environment interactions, and contributes to the knowledge on the effects of population movement on environment changes, despite most of existing researches focusing on the environmental impacts on migration.
Jiang's work on population and household dynamics and housing condition was funded as a National Key Research Project by China National Census Office. Exploring 2000 micro dataset, he conducted the first nationwide study on Chinese housing conditions, and projected housing demand under different scenarios of future demographic changes. Jiang paid particular attention to the housing conditions of floating population in urban China, and investigated the impacts of rural-urban migration on slum expansion. He found that massive rural-urban migration did not induce slum expansion in China (mainly due to institutional intervention), and indicated that migration enables rural population to share part of the rapid economic development output in the urban areas. Under this framework, Jiang is studying residential segregation in Beijing Municipality.
Degrees
PhD. of Environment Sciences (specified in demography)
Awards
1992 Second Prize of Yan Jingyao Scholarship of Sociology at Peking University
1993 Second Prize of the 1st Scientific Research Achievement Award of Population Association of China
1996 Scholarship of Ma Yin Chu Scientific Foundation for Population Studies, and An Tai Scholarship
1997 - 1998 Fellowship of the Population Council for the year
2000 The First Prize (Highest) Award for Social Scientific Research, Peking University
2000 Summer Faculty Fellowship, Center for the Study of Institution, Population and Environmental Changes (CIPEC), Indiana University
2002 The First Prize (Highest) of the Research Achievement Award, China Association of Population Studies and China Family Planning Commission
2002 Research Fellowship from Taiwan Zhong Liu and Himalaya Foundation
Affiliations
International Union for the Scientific Study of Population
Population Association of America
Funded Research
Current Grants
(O'Neill, Brian Ph.D.)
7/2005-7/2009
European Union
Demography, uncertainty, and learning in integrated assessment models of climate change.
Total amount:
Role: Co-investigator
(Jain, Atul, Ph.D.)
9/2006-9/2008
Department Of Energy
Integrated dynamic global modeling of land use, energy, and economic growth
Total Amount：
Role：Co-PI
(O'Neill, Brian Ph.D.)
2002 - 2005
United States Environmental Protection Agency
Households, consumption, and energy use: The role of demographic change in future U.S. greenhouse gas emissions.
Total amount:
Role: Researcher
(Leiwen Jiang Ph.D.)
2/2004 – 2/2007
China National Science Foundation (70373011)
Multi-regional and Probabilistic Population and Human Capital Projection for China,
Total Amount: RMB ￥180,000
Role: PI (transferred to other people in Oct. 2005)
Completed Grants
(Leiwen Jiang Ph.D.)
5/2002 – 5/2005
Wellcome Trust Foundation (432104004)
Population Change and Land Degradation in Xinjiang of China
Total Amount: RMB ￥1,930,000
Role: PI
(O'Neill, Brian Ph.D.)
2001 - 2004
United States Department of Energy
Improving Demographic Components of Integrated Assessment Models: The Influence of Aging and Changes in Household Characteristics on Energy Use
Total Amount:
Role: Researcher
(Leiwen Jiang Ph.D.)
08/01/2002 - 07/31/2003
National Key Project, China National Census Office
Study on the Impacts of Population and Household Changes on Housing Condition
Total amount: RMB ￥60,000
Role: PI (transfere)
(Leiwen Jiang Ph.D.)
01/01/2002 – 11/30/2002
World Bank
Photovoltaic System Application and Environmental Implications in Northwest China
Total amount: RMB ￥400,000
Role: PI
(Leiwen, Jiang Ph.D.)
05/01/2002 - 12/31/2003
China Ministry of Education
China Future Population and Household Changes and Its Environmental Impacts.
Total amount: RMB ￥30,000
Role: PI