Geographies of educational mobilities: exploring unevenness, difference and changes in international student flows (with Richard Perkins), The Geographical Journal, 180 (3), pp. 246-259 (pdf)

Does Legalized Prostitution Increase Human Trafficking? (with Seo-Young Cho and Axel Dreher), World Development, 41 (1), 2013, pp. 67-82 (pdf)

The Determinants of Anti-trafficking Policies – Evidence from a New Index (with Seo-Young Cho and Axel Dreher), Scandinavian Journal of Economics, 116 (2), 2014, pp. 429-254 (pdf)

Visa restrictions and bilateral travel, The Professional Geographer, 62 (2), 2010, pp. 1-11 (pdf)

Unequal Access to Foreign Spaces: How States Use Visa Restrictions to Regulate Mobility in a Globalised World, Transactions of the British Institute of Geographers 31 (1), 2006, pp. 72-84 (pdf)

Bogus Refugees? The Determinants of Asylum Migration to Western Europe, International Studies Quarterly 49 (4), 2005, pp. 389-409 (pdf)

Asylum Recognition Rates in Western Europe - Their Determinants, Variation and Lack of Convergence, Journal of Conflict Resolution, 49 (1), 2005, pp. 43-66 (pdf)

Asylum Destination Choice: What Makes some European Countries more Attractive than Others?, European Union Politics, 5 (2), 2004, pp. 155-180 (pdf)

The Environment: One more reason to keep immigrants out?, Ecological Economics, 59 (2), 2006, pp. 204-207 (pdf)

An empirical test of the neo-Malthusian theory of fertility change, Population and Environment, 27 (4), 2006, pp. 327-336 (pdf)

Aid and development finance

The Pattern of Aid Giving - The Impact of Good Governance on Development Assistance, London: Routledge 2003, Hardback £60.00 (ISBN 9780415298117), Paperback £20.00 (ISBN 9780415406956)

Are Stricter Investment Rules Contagious? Host Country Competition for Foreign Direct Investment through International Agreements (with Peter Nunnenkamp and Martin Roy), Review of World Economics, 152 (1), 2016, pp. 177-213 (pdf)

Why Aid is Unpredictable? An Empirical Analysis of the Gap Between Actual and Planned Aid (with Gustavo Javier Canavire-Bacarreza and Peter Nunnenkamp), Journal of International Development, 27 (4), 2015, pp. 440-463 (pdf)

Competition for Export Markets and the Allocation of Foreign Aid: The Role of Spatial Dependence among Donor Countries (with Fabian Barthel, Peter Nunnenkamp and Pablo Selaya), World Development, 64 (12), 2014, pp. 350-365 (pdf)

Competing for Scarce Foreign Capital: Spatial Dependence in the Diffusion of Double Taxation Treaties (with Fabian Barthel), International Studies Quarterly, 56 (4), 2012, pp. 645-660 (pdf)

The Impact of Double Taxation Treaties on Foreign Direct Investment: Evidence from Large Dyadic Panel Data (with Fabian Barthel and Matthias Busse), Contemporary Economic Policy, 28 (3), 2010, pp. 366-377 (pdf)

Do double taxation treaties increase foreign direct investment to developing countries?, Journal of Development Studies, 43 (8), 2007, pp. 1501-1519 (pdf)

Do bilateral investment treaties increase foreign direct investment to developing countries? (with Laura Spess), World Development, 33 (10), 2005, pp. 1567-1585. (pdf)

Self-interest, foreign need and good governance: Are bilateral investment treaty programs similar to aid allocation?, Foreign Policy Analysis 2 (3), 2006, pp. 245-267 (pdf)

Is the allocation of food aid free from donor interest bias?, Journal of Development Studies , 41 (3), 2005, pp. 394-411 (pdf)

Arab-Related Bilateral and Multilateral Sources of Development Finance: Issues, Trends, and the Way Forward, World Economy, 27 (2), 2004, pp. 281-300. (pdf)

Do human rights matter in bilateral aid allocation? A quantitative analysis of 21 donor countries, Social Science Quarterly, 84 (3), 2003, pp. 650-666 (pdf)

Is respect for human rights rewarded? An analysis of bilateral and multilateral aid allocation before and after the end of the Cold War, Human Rights Quarterly, 25 (2), 2003, pp. 510-527 (pdf)

What factors determine the allocation of aid by Arab countries and multilateral agencies?, Journal of Development Studies, 39 (4), 2003, pp. 134-147 (pdf)

The determinants of aid allocation by regional multilateral development banks and United Nations agencies, International Studies Quarterly 47 (1), 2003, pp. 101-122 (pdf)

Is good governance rewarded? A cross-sectional analysis of debt forgiveness, World Development 30 (6), 2002, pp. 913-930 (pdf)

Climate Change

A Missed Opportunity: The Stern Review On Climate Change Fails to Tackle the Issue of Non-Substitutable Loss of Natural Capital, Global Environmental Change, 17 (3-4), 2007, pp. 297-301 (pdf)

National Carbon Dioxide Emissions: Geography Matters, Area 36 (1), 2004, pp. 33-40 (pdf)

Can natural factors explain any cross-country differences in carbon dioxide emissions?, Energy Policy, 30 (1), 2002, pp. 7-12 (pdf)

In defense of historical accountability for greenhouse gas emissions, Ecological Economics, 33 (2), 2000, pp. 185-192 (pdf)

Global warming: Discounting is not the issue, but substitutability is, Energy Policy, 27 (1), 1999, pp. 33-43 (pdf)

Examining the Impact of Demographic Factors On Air Pollution (with Matthew A. Cole), Population and Environment, 26 (1), 2004, pp. 5-21. (pdf)

Disasters

Learning from Natural Disasters? The Case of the 2011 Tohoku Tsunami (with Thomas Plümper and Alejandro Quiroz Flores)

The Political Economy of Natural Disaster Damage (with Thomas Plümper and Fabian Barthel), Global Environmental Change, 24, 2014, pp. 8-19 (pdf)

A Trend Analysis of Normalized Insured Damage from Natural Disasters (with Fabian Barthel), Climatic Change, 113 (2), 2012, pp. 215-237 (featured in Nature) (pdf)

Normalizing Economic Loss from Natural Disasters: A Global Analysis(with Fabian Barthel), Global Environmental Change, 21 (1), 2011, pp. 13-24 (pdf)

The Gendered Nature of Natural Disasters: The Impact of Catastrophic Events on the Gender Gap in Life Expectancy, 1981-2002 (with Thomas Plümper), Annals of the American Association of Geographers, 97 (3), 2007, pp. 551-566 (pdf)

Famine Mortality and Rational Political Inactivity (with Thomas Plümper), World Development, 37 (1), 2009, pp. 50-61 (pdf)

Earthquake Propensity and the Politics of Mortality Prevention (with Phil Keefer and Thomas Plümper), World Development, 39 (9), 2011, pp. 1530-1541 (pdf) (Letter to the editor of New Scientist)

Economic Geography

Visa Restrictions and Economic Globalisation (with Mathias Czaika)

Financial Market Development in Host and Source Countries and Its Effects on Bilateral FDI (with Julian Donaubauer and Peter Nunnenkamp) (pdf)

Strategic Delaying and Concessions Extraction in Accession Negotiations to the World Trade Organization, World Trade Review 12 (4), 2013, pp. 669-692 (pdf)

Competing for Scarce Foreign Capital: Spatial Dependence in the Diffusion of Double Taxation Treaties (with Fabian Barthel), International Studies Quarterly, 56 (4), 2012, pp. 645-660 (pdf)

Fear of Floating and De Facto Exchange Rate Pegs with Multiple Key Currencies
(with Thomas Plümper), International Studies Quarterly, 55 (4), 2011, pp. 1121-1142 (pdf)

The ties that bind: The role of migrants in the uneven geography of international telephone traffic (with Richard Perkins), Global Networks, 13 (1), 2013, pp. 79-100 (pdf)

Transnational spatial dependencies in the geography of non-resident patent filings (with Richard Perkins), Journal of Economic Geography, 11 (1), 2011, pp. 37-60 (pdf)

On the Detrimental Impact of Visa Restrictions on Bilateral Trade and Foreign Direct Investment, Applied Geography, 31 (3), 2011, pp. 901-907 (pdf)

Visa restrictions and bilateral travel, The Professional Geographer, 62 (2), 2010, pp. 1-11 (pdf)

Is the internet really new after all? The determinants of telecommunications diffusion in historical perspective (with Richard Perkins), The Professional Geographer, 63 (1) 2011, pp. 55-72 (pdf)

Geographic Variations in the Early Diffusion of Corporate Voluntary Standards: Comparing ISO14001 and the Global Compact (with Richard Perkins), Environment and Planning A, 42 (2), 2010, pp. 347-365 (pdf)

Do Membership Benefits Buy Regulatory Compliance? An Empirical Analysis of EU Directives 1978-1999 (with Richard Perkins), European Union Politics, 8 (2), 2007, pp. 180-206 (pdf)

International technological diffusion, latecomer advantage and economic globalization: a multi-technology analysis (with Richard Perkins), Annals of the American Association of Geographers 95 (4), 2005, pp. 789-808 (pdf)

Does the 'resource curse' hold for growth in genuine income as well?, World Development, 32 (10), 2004, pp. 1627-1640 (pdf)

Uneven geographies of organizational practice: explaining the cross-national transfer and adoption of ISO 9000 (with Richard Perkins), Economic Geography 81 (3), 2005, pp. 237-259 (pdf)

What Explains the Uneven Take-up of ISO 14001 at the Global Level? A Panel Data Analysis (with Richard Perkins), Environment and Planning A 36 (5), 2004, pp. 823-839 (pdf)

Europeanisation and the uneven convergence of environmental policy: explaining the geography of EMAS (with Richard Perkins), Environment and Planning C, 22 (6), 2004, pp. 881-897 (pdf)

Environmental Commitment

Corruption and Climate Change Policies: Do the Bad Old Days Matter? (with Per Fredriksson), Environmental and Resource Economics, 63 (2), 2016, pp. 451-469 (pdf)

Democracy and Climate Change Policies: Is History Important? (with Per Fredriksson), Ecological Economics, 95, 2013, pp. 11-19 (pdf)

Kyoto Protocol Cooperation: Does Government Corruption Facilitate Environmental Lobbying? (with Per G. Fredriksson and Gergely Ujhelyi), Public Choice, 133 (1-2), 2007, pp. 231-251 (pdf)

Environmentalism, Democracy, and Pollution Control (with Richard Damiana, Per G. Fredriksson and Scott Gates), Journal of Environmental Economics and Management, 49 (2), 2005, pp. 343-365 (pdf)

The environment and left-wing political orientation, Ecological Economics, 51 (3-4), 2004, pp. 167-175 (pdf)

Does trade openness promote multilateral environmental cooperation?, World Economy 25 (6), 2002, pp. 815-832 (pdf)

Do Democracies Exhibit Stronger International Environmental Commitment?, Journal of Peace Research, 39 (2), 2002, pp. 139-164 (pdf)

Environmental Commitment, Democracy and Conflict. With Scott Gates and Nils Petter Gleditsch. Background Paper for World Development Report 2003. Washington D.C.: The World Bank (pdf)

What Explains the Uneven Take-up of ISO 14001 at the Global Level? A Panel Data Analysis (with Richard Perkins), Environment and Planning A 36 (5), 2004, pp. 823-839 (pdf)

Europeanisation and the uneven convergence of environmental policy: explaining the geography of EMAS (with Richard Perkins), Environment and Planning C, 22 (6), 2004, pp. 881-897 (pdf)

Environmental Performance

Regulatory distance and the transfer of new environmentally sound technologies: Evidence from the automobile sector (with Antoine Dechezleprêtre and Richard Perkins), Research Policy, 44 (1), 2015, pp. 244-257 (pdf)

Does the 'California effect' operate across borders? Trading- and investing-up in automobile emission standards (with Richard Perkins), Journal of European Public Policy, 19 (2), 2012, pp. 217-237 (pdf)

Do recipient country characteristics affect international spillovers of CO₂-efficiency via trade and FDI? (with Richard Perkins), Climatic Change, 112 (2), 2012, pp. 469-491 (pdf)

Transnational linkages and the spillover of environment-efficiency into developing countries (with Richard Perkins), Global Environmental Change, 19 (3), 2009, pp. 375-383 (pdf)

Fostering environment-efficiency through transnational linkages? Trajectories of CO₂ and SO₂, 1980-2000 (with Richard Perkins), Environment and Planning A, 40 (12), 2008, pp. 2970-2989 (pdf)

Implementing Multilateral Environmental Agreements: An Analysis of EU Directives (with Richard Perkins), Global Environmental Politics, 7 (3), 2007, pp. 13-31 (pdf)

The environmental Kuznets Curve (with Jamie Van Alstine). In Kevin P. Gallagher (ed.): Handbook on Trade and the Environment. Cheltenham: Edward Elgar 2009, pp. 49-59 (pdf)

Economic growth and the environment in developing countries: what are the implications of the Environmental Kuznets Curve? (together with Matthew A. Cole), in Peter Dauvergne (ed.): International Handbook of Environmental Politics, Cheltenham and Northampton: Edward Elgar Publishing 2005, pp. 298-318 (pdf) (corrigendum)

Environmental Pressure Group Strength and Air Pollution: An Empirical Analysis (with Seth Binder), Ecological Economics, 55 (4), 2005, pp. 527-538 (pdf)

Examining the Impact of Demographic Factors On Air Pollution (with Matthew A. Cole), Population and Environment, 26 (1), 2004, pp. 5-21. (pdf)

National Carbon Dioxide Emissions: Geography Matters, Area 36 (1), 2004, pp. 33-40 (pdf)

Are Left-Wing Party Strength and Corporatism Good for the Environment? A Panel Analysis of 21 OECD Countries, 1980-1998, Ecological Economics 45 (2), 2003, pp. 203-220 (pdf)

Can natural factors explain any cross-country differences in carbon dioxide emissions?, Energy Policy, 30 (1), 2002, pp. 7-12 (pdf)

Improvement without convergence: Pressure on the environment in European Union countries, Journal of Common Market Studies, 39 (5), 2001, pp. 927-937 (pdf)

Convergence in access to safe water and sanitation: An analysis across countries and time, International Journal of Water , 1 (2), 2001, pp. 210-216 (pdf)

How regime theory and the economic theory of international environmental cooperation can learn from each other, Global Environmental Politics, 1 (1), 2001, pp. 122-147 (pdf)

Overcoming barriers to campus greening (together with Marianne Dahle), International Journal of Sustainability in Higher Education, 2 (2), 2001, pp. 139-160 (pdf)

German packaging waste management: a successful voluntary agreement with less successful environmental effects, European Environment, 10 (3), 2000, pp. 152-163 (pdf)

Gender

The Unequal Burden of War: The Effect of Armed Conflict on the Gender Gap in Life Expectancy (with Thomas Plümper), International Organization, 60 (3), 2006, 723-754 (pdf)

Globalization and Women's Empowerment: An Analysis of Spatial Dependence via Trade and Foreign Direct Investment (with Indra de Soysa), World Development, 39 (7), 2011, pp. 1065-1075 (pdf)

Globalization, Women's Economic Rights and Forced Labour (with Indra de Soysa), World Economy, 30 (10), 2007, pp. 1510-1535 (pdf)

Globalization and Development

Do bilateral investment treaties increase foreign direct investment to developing countries? (with Laura Spess), World Development, 33 (10), 2005, pp. 1567-1585. (pdf)

Do double taxation treaties increase foreign direct investment to developing countries?, Journal of Development Studies, 43 (8), 2007, pp. 1501-1519 (pdf)

Globalization and Women's Empowerment: An Analysis of Spatial Dependence via Trade and Foreign Direct Investment (with Indra de Soysa), World Development, 39 (7), 2011, pp. 1065-1075 (pdf)

Globalization, Women's Economic Rights and Forced Labour (with Indra de Soysa), World Economy, 30 (10), 2007, pp. 1510-1535 (pdf)

Globalization and the Right to Free Association and Collective Bargaining: An Empirical Analysis (with Indra de Soysa), World Development, 34 (1), 2005, pp. 31-49 (pdf)

Trade Openness, Foreign Direct Investment and Child Labor, World Development, 33 (1), 2005, pp. 43-63 (with Indra De Soysa) (pdf)

HIV/AIDS and its impact on convergence analysis of life expectancy and survival rates, Population and Development Review, 30 (4), 2004, pp. 727-742. (pdf)

The impact of poor health on factor productivity: An empirical investigation (with Matthew A. Cole), Journal of Development Studies, 42 (6), 2007, pp. 918-938 (pdf)

Beyond income: Convergence in living standards, big time, Structural Change and Economic Dynamics, 14 (3), 2003, pp. 275-296 (pdf)

The Pitfalls of Convergence Analysis: Is the Income Gap Really Increasing? (together with Matthew A. Cole), Applied Economics Letters, 10 (6), 2003, pp. 355-357 (pdf)

Health

Spatial Inequalities in Premature Mortality in Great Britain (with Thomas Plümper and Denise Laroze) (pdf)

Inequalities of Income and Inequalities of Longevity: A Cross-Country Study (with Thomas Plümper), American Journal of Public Health,106 (1), 2016, pp. 160-165 (pdf)

Adoption and Compliance in Second-Hand Smoking Bans: a Global Econometric Analysis (with Richard Perkins), International Journal of Public Health, 59 (5), 2014, pp. 859-866 (pdf)

Recessions Lower Some Mortality Rates: Evidence from Germany, Social Science & Medicine, 58 (6), 2004, pp. 1037-1047 (pdf) Corrections (pdf)

The Economic Business Cycle and Mortality: A Comment, International Journal of Epidemiology, 34 (6), 2005, pp. 1221-1222 (pdf)

Health Spending, Out-of-Pocket Contributions, and Mortality Rates (with Thomas Plümper), Public Administration, 91 (2), 2013, pp. 403-418 (pdf)

HIV/AIDS and cross-national convergence in life expectancy, Population and Development Review, 30 (4), 2004, pp. 727-742. (pdf)

The impact of poor health on factor productivity: An empirical investigation (with Matthew A. Cole), Journal of Development Studies, 42 (6), 2007, pp. 918-938 (pdf)

Human Rights

Does Legalized Prostitution Increase Human Trafficking? (with Seo-Young Cho and Axel Dreher), World Development, 41 (1), 2013, pp. 67-82 (pdf)

The Determinants of Anti-trafficking Policies – Evidence from a New Index (with Seo-Young Cho and Axel Dreher), Scandinavian Journal of Economics, 116 (2), 2014, pp. 429–454 (pdf)

Do Governments Mean Business When They Derogate? Human Rights Violations During Declared States of Emergency, Review of International Organizations, 8 (1), 2013, pp. 1-31 (pdf)

The organized hypocrisy of ethical foreign policy: Human rights, democracy and Western arms sales (with Richard Perkins), Geoforum, 41 (2), 2010, pp. 247-256 (pdf)

A New Moral Hazard? Military Intervention, Peacekeeping and Ratification of the International Criminal Court, Journal of Peace Research, 46 (5), 2009, pp. 659-670 (pdf)

Qualified ratification: Explaining reservations to international human rights treaties, Journal of Legal Studies, 36 (2), 2007, pp. 397-430 (pdf)

Do international human rights treaties improve respect for human rights?, Journal of Conflict Resolution, 49 (6), 2005, pp. 925-953 (pdf)

Death Penalty: The political foundations of the global trend toward abolition, Human Rights Review, 9 (2), 2008, pp. 241-268 (pdf)

Death Penalty Abolition and the Ratification of the Second Optional Protocol, International Journal of Human Rights, 12 (1), 2008, pp. 3-21 (pdf)

Globalization and Women's Empowerment: An Analysis of Spatial Dependence via Trade and Foreign Direct Investment (with Indra de Soysa), World Development, 39 (7), 2011, pp. 1065-1075 (pdf)

Globalization, Women's Economic Rights and Forced Labour (with Indra de Soysa), World Economy, 30 (10), 2007, pp. 1510-1535 (pdf)

Globalization and the Right to Free Association and Collective Bargaining: An Empirical Analysis (with Indra de Soysa), World Development, 34 (1), 2005, pp. 31-49 (pdf)

Trade Openness, Foreign Direct Investment and Child Labor (with Indra De Soysa), World Development, 33 (1), 2005, pp. 43-63 (pdf)

Methodology

Robustness Tests for Quantitative Research (with Thomas Plümper), Cambridge University Press (forthcoming)

Robustness Tests and Statistical Inference (with Thomas Plümper) (pdf)

W (with Thomas Plümper), Political Science Research and Methods, 4 (1), 2016, pp. 175-193 (pdf)

Case Selection and Causal Inference in Qualitative Research (with Thomas Plümper and Vera Troeger) (pdf)

Model Uncertainty and Robustness Tests: Towards a New Logic of Statistical Inference (with Thomas Plumper) (pdf)

Conditional Spatial Policy Dependence: Theory and Model Specification (with Thomas Plümper), Comparative Political Studies, 47 (5), 2012, pp. 819-849 (pdf)

Spatial Effects in Dyadic Data (with Thomas Plümper), International Organization, 64 (1), 2010, pp. 154-166 (pdf)

Model Specification in the Analysis of Spatial Dependence (with Thomas Plümper), European Journal of Political Research, 49 (3), 2010, pp. 418-442 (pdf)

Making Spatial Analysis Operational: Ado-files for Generating Spatial Effect Variables in Monadic and Dyadic Data (with Thomas Plümper), Stata Journal, 10 (4), 2010, pp. 585-605 (pdf)

The Level of Democracy during Interregnum Periods: Recoding the polity2 Score (with Thomas Plümper), Political Analysis, 18 (2), 2010, pp. 206-226 (pdf)

Sustainable Development

Handbook of Sustainable Development, Co-edited with Giles Atkinson and Simon Dietz. Cheltenham and Northampton: Edward Elgar Publishing. Second Revised Edition 2014, Hardback (ISBN 9781843765776), Paperback (ISBN 9781848444720)

Weak versus Strong Sustainability: Exploring the Limits of Two Opposing Paradigms, Fourth Revised Edition, Cheltenham and Northampton: Edward Elgar Publishing 2013, Hardback (ISBN 9781781007075), Paperback (ISBN 9781781007099)

Sustainability and Inequality in Human Development. Human Development Reports Research Paper 2011/04. New York: United Nations Development Program. (pdf)

Human Development and Sustainability. Human Development Reports Research Paper 2010/05. New York: United Nations Development Program. Published in modified form in: Journal of Human Development and Capabilities, 13 (4), 2012, pp. 561-579. (pdf)

False Prophet, or Genuine Savior? Assessing the Effects of Economic Openness on Sustainable Development, 1980-1999 (with Indra de Soysa), International Organization 59 (3), 2005, pp. 731-772 (pdf) (Correction to table 5)

Free to squander? Democracy, Institutional Design and Economic Sustainability, 1975-2000 (with Indra de Soysa and Jennifer Bailey). In Richard A. Matthew, Jon Barnett, Bryan McDonald and Karen L. O'Brien (eds.): Global Environmental Change and Human Security. Cambridge (Mass.): MIT Press 2009, pp. 510-562 (pdf)

Corruption, the Resource Curse and Genuine Saving (with Simon Dietz and Indra de Soysa), Environment and Development Economics, 12 (1), 2007, 33-53 (pdf)

Weak and Strong Sustainability in the SEEA: Concepts and Measurement (with Simon Dietz), Ecological Economics, 61 (4), 2007, 617-626 (pdf)

Economics and Governance for Sustainable Development (with Simon Dietz). In: Neil Adger and Andrew Jordan (eds.): The Governance of Sustainability: Essays in Honour of Tim O'Riordan. Oxford: Oxford University Press 2008, pp. 259-282 (pdf)

A critical appraisal of genuine savings as an indicator of sustainability (with Simon Dietz), in Philip Lawn (ed.): Sustainable Development Indicators in Ecological Economics, Cheltenham: Edward Elgar 2006, pp. 117-135. (pdf)

Some constructive criticisms of the Index of Sustainable Economic Welfare (with Simon Dietz), in Philip Lawn (ed.): Sustainable Development Indicators in Ecological Economics, Cheltenham: Edward Elgar 2006, pp. 186-206. (pdf)

Indicators of Sustainability, in Tom Tietenberg and Henk Folmer (eds.): International Yearbook of Environmental and Resource Economics 2004/05, Cheltenham: Edward Elgar 2004, pp. 139-188 (pdf)

Genuine Savings: A Critical Analysis of its Policy-Guiding Value (with Simon Dietz), International Journal of Environment and Sustainable Development 3 (3/4), 2004, pp. 276-292 (pdf)

Sustainability and well-being indicators. United Nations University - World Institute for Development Economics Research (WIDER) Research Paper 23/2004 (pdf)

Does high indebtedness increase natural resource exploitation?, Environment and Development Economics, 10 (2), 2005, pp. 127-141 (pdf)

Does the 'resource curse' hold for growth in genuine income as well?, World Development, 32 (10), 2004, pp. 1627-1640 (pdf)

The Human Development Index and sustainability - a constructive proposal, Ecological Economics, 39 (1), 2001, pp. 101-114 (pdf)

Resource accounting in measures of unsustainability: Challenging the World Bank's conclusions, Environmental and Resource Economics, 15 (3), 2000, pp. 257-278 (pdf)

On the methodology of ISEW, GPI and related measures: some constructive comments and some doubt on the threshold hypothesis, Ecological Economics, 34 (3), 2000, pp. 347-361 (pdf)

Scarce or abundant? The economics of natural resource availability, Journal of Economic Surveys, 14 (3), 2000, pp. 185-192 (pdf)

Beyond growth: against the misplaced focus on economic growth, Politische Ökologie, 18, August/September, pp. 19-23 (pdf)

The ISEW: Not an indicator of sustainable economic welfare, Social Indicators Research, 48 (1), 1999, pp. 77-101 (pdf)

Preserving natural capital in a world of uncertainty and scarce financial resources, The International Journal of Sustainable Development and World Ecology, 5 (1), 1998, pp. 27-42 (pdf)

Is economic growth the environment's best friend?, Zeitschrift für Umweltpolitik und Umweltrecht (Journal of Environmental Law and Policy) 2/1998, pp. 161-176 (pdf)

Trade, Investment and environment

Greening Trade and Investment: Environmental Protection without Protectionism, London: Earthscan Publishing 2001, Paperback £17.95 (ISBN 1 85383 709), Hardback £48.00 (ISBN 1 85383 708 3)

The WTO and the environment: Its past record is better than critics believe, but the future outlook is bleak, Global Environmental Politics, 4 (3), 2004, pp. 1-8 (pdf)

Greening the WTO agreements: can the Treaty establishing the European Community be of guidance?, Journal of World Trade, 35 (1), 2001, pp. 145-166 (pdf)

Pollution havens: an analysis of policy options for dealing with an elusive phenomenon, Journal of Environment & Development,10 (2), 2001, pp. 147-177 (pdf)

Do countries fail to raise environmental standards? An evaluation of policy options addressing "regulatory chill", International Journal of Sustainable Development, 4 (3), 2001, pp. 231-244 (pdf)

A blueprint for making the prospective Mediterranean Free Trade Zone an environmental role model, European Environment, 11 (4), 2001, pp. 173-184 (pdf)

Trade measures in multilateral environmental agreements and WTO rules: potential for conflict, scope for reconciliation, Aussenwirtschaft, 55 (3), 2000, pp. 1-24 (pdf)

Trade and the environment: A critical assessment and some suggestions for reconciliation, Journal of Environment and Development, 9 (2), 2000, pp. 138-159 (pdf)

Multilateral agreement on investment: Lessons for the WTO from the failed OECD-negotiations, Wirtschaftspolitische Blätter 46 (6), 1999, pp. 618-628 (pdf)

Developing countries in the WTO: Support or resist a new Millennium round of trade negotiations?, Development in Practice 9 (5), 1999, pp. 592-595 (pdf)

Multilateral Environmental Agreements, Trade and Development: Issues and policy options concerning compliance and enforcement. Report for Consumer Unity & Trust Society, Jaipur, India 2001 (pdf)

Violence and Conflict

Spatial Spill-overs from Terrorism on Tourism: Western Victims in Islamic Destination Countries (with Thomas Plümper), Public Choice (forthcoming)

Free-riding in Alliances: Testing an Old Theory with a New Methodology (with Thomas Plumper), Conflict Management and Peace Science, 32 (3), 2015, pp.
247–268 (pdf)

The "Peer-Effect" in Counterterrorist Policies (with Thomas Plümper and Mariaelisa Epifanio), International Organization, 68 (1), 2014, pp. 211-234 (pdf)

Galton's Problem and the Spread of International Terrorism along Civilizational Lines (with Thomas Plümper), Conflict Management and Peace Science, 27 (4), 2010, pp. 308-325 (pdf)

International Terrorism and the Clash of Civilizations (with Thomas Plümper), British Journal of Political Science, 39 (4), 2009, pp. 711-734 (pdf)

The Friend of my Enemy is my Enemy. International Alliances and International Terrorism (with Thomas Plümper), European Journal of Political Research, 49 (1), 2010, pp. 75-96 (pdf)

Foreign Terror on Americans (with Thomas Plümper), Journal of Peace Research, 48 (2), 2011, pp. 1-12 (pdf)

The organized hypocrisy of ethical foreign policy: Human rights, democracy and Western arms sales (with Richard Perkins), Geoforum, 41 (2), 2010, pp. 247-256 (pdf)

Extra-territorial interventions in conflict spaces: Explaining the geographies of post-Cold War peacekeeping (with Richard Perkins), Political Geography, 27 (8), 2008, pp. 895-914 (pdf)

A New Moral Hazard? Military Intervention, Peacekeeping and Ratification of the International Criminal Court, Journal of Peace Research, 46 (5), 2009, pp. 659-670 (pdf)

Disarming Fears of Diversity: Ethnic Heterogeneity and State Militarization, 1988-2002 (with Indra de Soysa), Journal of Peace Research, 45 (4), 2008, pp. 497-518 (pdf)

The Unequal Burden of War: The Effect of Armed Conflict on the Gender Gap in Life Expectancy (with Thomas Plümper), International Organization, 60 (3), 2006, 723-754 (pdf)

Natural Resources and Civil War: Another Look with New Data (with Indra De Soysa), Conflict Management and Peace Science, 24(3), 2007, pp. 201-218 (pdf)

The Impact of Violence on Tourism - Dynamic Econometric Estimation in a Cross-National Panel, Journal of Conflict Resolution 48 (2), 2004, pp. 259-281. (pdf)

Inequality and Violent Crime: Evidence from Data on Robbery and Violent Theft, Journal of Peace Research, 42 (1), 2005, pp. 101-112 (pdf)

Good Policy can Lower Violent Crime: Evidence From Fixed Effects Estimation in a Cross-National Panel of Homicide Rates, 1980-97, Journal of Peace Research 40 (6), 2003, pp. 619-640 (pdf)

Are socio-economic factors valid determinants of suicide? Controlling for national cultures of suicide with fixed-effects estimation, Cross-Cultural Research Vol. 37 (3), 2003, pp. 307-329 (pdf)

Socioeconomic Factors and Suicide Rates at Large-Unit Aggregate Levels, Urban Studies, 40 (13), 2003, pp. 2769-2776 (pdf)

Miscellaneous other

Student Satisfaction, League Tables and University Applications (with Richard Perkins and Steve Gibbons), Economics of Education Review, 48, pp. 148–164 (pdf) (blog entry) (featured in Times Higher Education Supplement)

Distance, Power and Ideology: Diplomatic Representation in a World of Nation-States, Area, 40 (2), 2008, pp. 228-236 (pdf)

Unequal Access to Foreign Spaces: How States Use Visa Restrictions to Regulate Mobility in a Globalised World, Transactions of the British Institute of Geographers 31 (1), 2006, pp. 72-84 (pdf)

An empirical test of the neo-Malthusian theory of fertility change, Population and Environment, 27 (4), 2006, pp. 327-336 (pdf)

Do we trust the data? On the validity and reliability of cross-national environmental surveys, Social Science Quarterly, 83 (1), 2002, pp. 332-340 (pdf)

The super-rich in global perspective: a quantitative analysis of the Forbes list of billionaires, Applied Economics Letters, 11 (13), 2004, pp. 793-796. (pdf)