2016

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

• 'W' (with Thomas Plümper), Political Science Research and Methods, 4 (1), pp. 175-193, January 2016
  
  
• Spatial Spill-overs from Terrorism on Tourism: Western Victims in Islamic Destination Countries (with Thomas Plümper), Public Choice, 169 (3), pp. 195–206
  
  
• Inequalities of Income and Inequalities of Longevity: A Cross-Country Study (with Thomas Plümper), American Journal of Public Health,106 (1), pp. 160-165
  
  
• 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), pp. 177-213
  
  
• Corruption and Climate Change Policies: Do the Bad Old Days Matter?(with Per Fredriksson), Environmental and Resource Economics, 63 (2), pp. 451-469 

2015 

• Student Satisfaction, League Tables and University Applications (with Richard Perkins and Steve Gibbons), Economics of Education Review, 48, pp. 148–164 (blog entry) (featured in Times Higher Education Supplement)
• Spatial Dependence in Asylum Migration (with Fabian Barthel), Journal of Ethnic and Migration Studies, 41 (7), pp. 1131-1151 
• Environmental regulation and the cross-border diffusion of new technology: Evidence from automobile patents (with Antoine Dechezleprêtre and Richard Perkins), Research Policy, 44 (1), pp. 244-257
• Free-riding in Alliances: Testing an Old Theory with a New Methodology (with Thomas Plümper), Conflict Management and Peace Science, 32 (3), pp. 247–268
• 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), pp. 440-463 

2014

•  The "Peer-Effect" in Counterterrorist Policies (with Thomas Plümper and Mariaelisa Epifanio), International Organization, 68 (1), pp. 211-234 
• 'The Political Economy of Natural Disaster Damage' (with Thomas Plümper and Fabian Barthel), Global Environmental Change, 24, 2014, pp. 8-19
• Adoption and Compliance in Second-Hand Smoking Bans: a Global Econometric Analysis (with Richard Perkins), International Journal of Public Health, 59 (5), pp. 859-866 (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), pp. 350-365
• Geographies of educational mobilities: exploring unevenness, difference and changes in international student flows (with Richard Perkins), Geographical Journal, 180 (3), pp. 246-259 
• The Determinants of Anti-trafficking Policies – Evidence from a New Index (with Seo-Young Cho and Axel Dreher), Scandinavian Journal of Economics, 116 (2), pp. 429-454ichard Perkins), Geographical Journal, 180 (3), pp. 246-259

 2013

• Do Governments Mean Business When Strategic Delaying and Concessions Extraction in Accession Negotiations to the World Trade Organization, World Trade Review 12 (4), pp. 669-692
• Does Legalized Prostitution Increase Human Trafficking?(with Seo-Young Cho and Axel Dreher), World Development, 41 (1), pp. 67-82
• Strategic Delaying and Concessions Extraction in Accession Negotiations to the World Trade Organization, World Trade Review 12 (4), pp. 669-692
• The ties that bind: The role of migrants in the uneven geography of international telephone traffic (with Richard Perkins), Global Networks, 13 (1), pp. 79-100 
• Democracy and Climate Change Policies: Is History Important? (with Per Fredriksson), Ecological Economics, 95, pp. 11-19 
• Health Spending, Out-of-Pocket Contributions, and Mortality Rates (with Thomas Plümper), Public Administration, 91 (2), pp. 403-418

2012

• Competing for Scarce Foreign Capital: Spatial Dependence in the Diffusion of Double Taxation Treaties (with Fabian Barthel), International Studies Quarterly, 56 (4), pp. 645-660
• Conditional Spatial Policy Dependence: Theory and Model Specification (with Thomas Plümper), Comparative Political Studies, 47 (5), pp. 819-849
• A Trend Analysis of Normalized Insured Damage from Natural Disasters(with Fabian Barthel), Climatic Change, 113 (2), pp. 215-237
• Do recipient country characteristics affect international spillovers of CO2-efficiency via trade and FDI?(with Richard Perkins), Climatic Change, 112 (2), pp. 469-491 
• 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), pp. 217-237

2011

• Fear of Floating and De Facto Exchange Rate Pegs with Multiple Key Currencies (with Thomas Plümper), International Studies Quarterly, 55 (4), pp. 1121-1142
• Transnational spatial dependencies in the geography of non-resident patent filings (with Richard Perkins), Journal of Economic Geography, 11 (1), pp. 37-60
• Is the internet really new after all? The determinants of telecommunications diffusion in historical perspective (with Richard Perkins), The Professional Geographer, 63 (1), pp. 55-72
• Foreign Terror on Americans (with Thomas Plümper), Journal of Peace Research, 48 (1), pp. 1-12 
• Globalization and Women's Empowerment: An Analysis of Spatial Dependence via Trade and Foreign Direct Investment (with Indra de Soysa), World Development, 39 (7), pp. 1065-1075
• Earthquake Propensity and the Politics of Mortality Prevention (with Phil Keefer and Thomas Plümper), World Development, 39 (9), pp. 1530-1541
• Normalizing Economic Loss from Natural Disasters: A Global Analysis (with Fabian Barthel), Global Environmental Change, 21 (1), pp. 13-24
• On the Detrimental Impact of Visa Restrictions on Bilateral Trade and Foreign Direct Investment, Applied Geography, 31 (3), pp. 901-907

 2010

• 'Spatial Effects in Dyadic Data' (with Thomas Plümper), International Organization, 64 (1), 2010, pp. 145-166
• Model Specification in the Analysis of Spatial Dependence (with Thomas Plümper), European Journal of Political Research, 49 (3), pp. 418-442
• Making Spatial Analysis Operational: Ado-files for Generating Spatial Effect Variables in Monadic and Dyadic Data (with Thomas Plümper), Stata Journal, 10 (4), pp. 585-605
• The Level of Democracy during Interregnum Periods: Recoding the polity2 Score (with Thomas Plümper), Political Analysis, 18 (2), pp. 206-226
• Galton's Problem and the Spread of International Terrorism along Civilizational Lines (with Thomas Plümper), Conflict Management and Peace Science, 27 (4), pp. 308-325 
• The Friend of my Enemy is my Enemy. International Alliances and International Terrorism (with Thomas Plümper), European Journal of Political Research, 49 (1), pp. 75-96
• 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), pp. 347-365
• The organized hypocrisy of ethical foreign policy: Human rights, democracy and Western arms sales (with Richard Perkins), Geoforum, 41 (2), pp. 247-256
• Visa restrictions and bilateral travel, The Professional Geographer, 62 (2), pp. 1-11 
• 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), pp. 366-377

2009

• 'International Terrorism and the Clash of Civilizations' (with Thomas Plümper), British Journal of Political Science, 39 (4), 2009, pp. 711-734
• Transnational linkages and the spillover of environment-efficiency into developing countries (with Richard Perkins), Global Environmental Change, 19 (3), pp. 375-383 
• A New Moral Hazard? Military Intervention, Peacekeeping and Ratification of the International Criminal Court, Journal of Peace Research, 46 (5), pp. 659-670
• Famine Mortality and Rational Political Inactivity (with Thomas Plümper), World Development, 37 (1), pp. 50-61

2008

• Fostering environment-efficiency through transnational linkages?Trajectories of CO2 and SO2, 1980-2000 (with Richard Perkins), Environment and Planning A, 40 (12), pp. 2970-2989 
• Extra-territorial interventions in conflict spaces: Explaining the geographies of post-Cold War peacekeeping (with Richard Perkins), Political Geography, 27 (8), pp. 895-914 
• Death Penalty Abolition and the Ratification of the Second Optional Protocol, International Journal of Human Rights, 12 (1), pp. 3-21
• Death Penalty: The political foundations of the global trend toward abolition, Human Rights Review, 9 (2), pp. 241-268
• Disarming Fears of Diversity: Ethnic Heterogeneity and State Militarization, 1988-2002 (with Indra de Soysa), Journal of Peace Research, 45 (4), pp. 497-518
• Distance, Power and Ideology: Diplomatic Representation in a World of Nation-States, Area, 40 (2), pp. 228-236 

2007 

• '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
• Qualified ratification: Explaining reservations to international human rights treaties, Journal of Legal Studies, 36 (2), pp. 397-430
• Globalization, Women's Economic Rights and Forced Labour (with Indra de Soysa), World Economy, 30 (10), pp. 1510-1535
• Do double taxation treaties increase foreign direct investment to developing countries?, Journal of Development Studies, 43 (8), pp. 1501-1519
• Natural Resources and Civil War: Another Look with New Data (with Indra De Soysa), Conflict Management and Peace Science, 24 (3), pp. 201-218
• Corruption, the Resource Curse and Genuine Saving (with Simon Dietz and Indra de Soysa), Environment and Development Economics, 12 (1), pp. 33-53
• Implementing Multilateral Environmental Agreements: An Analysis of EU Directives (with Richard Perkins), Global Environmental Politics, 7 (3), pp. 13-31
• Do Membership Benefits Buy Regulatory Compliance? An Empirical Analysis of EU Directives 1978-1999 (with Richard Perkins), European Union Politics, 8 (2), pp. 180-206
• Weak and Strong Sustainability in the SEEA: Concepts and Measurement (with Simon Dietz), Ecological Economics, 61 (4), pp. 617-626
• 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), pp. 297-301 
• Kyoto Protocol Cooperation: Does Government Corruption Facilitate Environmental Lobbying? (with Per G. Fredriksson and Gergely Ujhelyi), Public Choice, 133 (1-2), pp. 231-251

 2006

• The Unequal Burden of War: The Effect of Armed Conflict on the Gender Gap in Life Expectancy (with Thomas Plümper), International Organization, 60 (3), 723-754
• 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), pp. 72-84
• Self-interest, foreign need and good governance: Are bilateral investment treaty programs similar to aid allocation?, Foreign Policy Analysis 2 (3), pp. 245-267
• The impact of poor health on factor productivity: An empirical investigation (with Matthew A. Cole), Journal of Development Studies, 42 (6), pp. 918-938
• The Environment: One more reason to keep immigrants out?, Ecological Economics, 59 (2), pp. 204-207
• An empirical test of the neo-Malthusian theory of fertility change, Population and Environment, 27 (4), pp. 327-336 

 2005

• International technological diffusion, latecomer advantage and economic globalization: a multi-technology analysis(with Richard Perkins), Annals of the American Association of Geographers 95 (4), pp. 789-808 
• Uneven geographies of organizational practice: explaining the cross-national transfer and adoption of ISO 9000 (with Richard Perkins), Economic Geography 81 (3), pp. 237-259 
• Do international human rights treaties improve respect for human rights?, Journal of Conflict Resolution, 49 (6), pp. 925-953 
• False Prophet, or Genuine Savior? Assessing the Effects of Economic Openness on Sustainable Development, 1980-1999 (with Indra de Soysa), International Organization 59 (3), pp. 731-772 
• Bogus Refugees? The Determinants of Asylum Migration to Western Europe, International Studies Quarterly 49 (4), pp. 389-409 
• Asylum Recognition Rates in Western Europe - Their Determinants, Variation and Lack of Convergence, Journal of Conflict Resolution, 49 (1), pp. 43-66 
• Do bilateral investment treaties increase foreign direct investment to developing countries? (with Laura Spess), World Development, 33 (10), pp. 1567-1585. 
• Globalization and the Right to Free Association and Collective Bargaining: An Empirical Analysis (with Indra de Soysa), World Development, 34 (1), pp. 31-49 
• Trade Openness, Foreign Direct Investment and Child Labor, World Development, 33 (1),  pp. 43-63 (with Indra De Soysa) 
• Is the allocation of food aid free from donor interest bias?, Journal of Development Studies, 41 (3), pp. 394-411 
• Inequality and Violent Crime: Evidence from Data on Robbery and Violent Theft, Journal of Peace Research, 42 (1), pp. 101-112 
• Environmentalism, Democracy, and Pollution Control (with Richard Damiana, Per G. Fredriksson and Scott Gates), Journal of Environmental Economics and Management, 49 (2), pp. 343-365 
• Environmental Pressure Group Strength and Air Pollution: An Empirical Analysis (with Seth Binder), Ecological Economics, 55 (4), pp. 527-538 
• Does high indebtedness increase natural resource exploitation?, Environment and Development Economics, 10 (2), pp. 127-141 
• The Economic Business Cycle and Mortality: A Comment, International Journal of Epidemiology, 34 (6), pp. 1221-1222 

2004

• 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), pp. 823-839 
• Europeanisation and the uneven convergence of environmental policy: explaining the geography of EMAS (with Richard Perkins), Environment and Planning C, 22 (6), pp. 881-897 
• Does the 'resource curse' hold for growth in genuine income as well?, World Development, 32 (10), pp. 1627-1640 
• National Carbon Dioxide Emissions: Geography Matters, Area 36 (1), pp. 33-40 
• The WTO and the environment: Its past record is better than critics believe, but the future outlook is bleak, Global Environmental Politics, 4 (3), pp. 1-8 
• The environment and left-wing political orientation, Ecological Economics, 51 (3-4), pp. 167-175 
• Genuine Savings: A Critical Analysis of its Policy-Guiding Value (with Simon Dietz), International Journal of Environment and Sustainable Development 3 (3/4), pp. 276-292 
• Examining the Impact of Demographic Factors On Air Pollution (with Matthew A. Cole), Population and Environment, 26 (1), pp. 5-21. 
• Asylum Destination Choice: What Makes some European Countries more Attractive than Others?, European Union Politics, 5 (2), pp. 155-180 
• The Impact of Violence on Tourism - Dynamic Econometric Estimation in a Cross-National Panel, Journal of Conflict Resolution 48 (2), pp. 259-281. 
• Arab-Related Bilateral and Multilateral Sources of Development Finance: Issues, Trends, and the Way Forward, World Economy, 27 (2), pp. 281-300. 
• HIV/AIDS and cross-national convergence in life expectancy, Population and Development Review, 30 (4), pp. 727-742. 
• Recessions Lower Some Mortality Rates: Evidence from Germany, Social Science & Medicine, 58 (6), pp. 1037-1047  Corrections 
• The super-rich in global perspective: a quantitative analysis of the Forbes list of billionaires, Applied Economics Letters, 11 (13), pp. 793-796. 

2003

• 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), pp. 619-640  
• Beyond income: Convergence in living standards, big time, Structural Change and Economic Dynamics, 14 (3), pp. 275-296 
• Are Left-Wing Party Strength and Corporatism Good for the Environment? A Panel Analysis of 21 OECD Countries, 1980-1998, Ecological Economics 45 (2), pp. 203-220 
• The Pitfalls of Convergence Analysis: Is the Income Gap Really Increasing? (together with Matthew A. Cole), Applied Economics Letters, 10 (6), pp. 355-357 
• Are socio-economic factors valid determinants of suicide? Controlling for national cultures of suicide with fixed-effects estimation, Cross-Cultural Research Vol. 37 (3), pp. 307-329  
• Socioeconomic Factors and Suicide Rates at Large-Unit Aggregate Levels, Urban Studies, 40 (13), pp. 2769-2776 
• Do human rights matter in bilateral aid allocation?A quantitative analysis of 21 donor countries, Social Science Quarterly, 84 (3), pp. 650-666 
• 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), pp. 510-527 
• What factors determine the allocation of aid by Arab countries and multilateral agencies?, Journal of Development Studies, 39 (4), pp. 134-147
• The determinants of aid allocation by regional multilateral development banks and United Nations agencies, International Studies Quarterly  47 (1), pp. 101-122 

2002

• Is good governance rewarded? A cross-sectional analysis of debt forgiveness, World Development 30 (6), pp. 913-930 
• Does trade openness promote multilateral environmental cooperation?, World Economy 25 (6), pp. 815-832 
• Do Democracies Exhibit Stronger International Environmental Commitment?, Journal of Peace Research, 39 (2), pp. 139-164 
• Do we trust the data? On the validity and reliability of cross-national environmental surveys, Social Science Quarterly, 83 (1), pp. 332-340 
• Can natural factors explain any cross-country differences in carbon dioxide emissions?, Energy Policy, 30 (1), pp. 7-12 

2001

• Improvement without convergence: Pressure on the environment in European Union countries, Journal of Common Market Studies, 39 (5), pp. 927-937
• Greening the WTO agreements: can the Treaty establishing the European Community be of guidance?, Journal of World Trade, 35 (1), pp. 145-166 
• How regime theory and the economic theory of international environmental cooperation can learn from each other, Global Environmental Politics, 1 (1) pp. 122-147 
• The Human Development Index and sustainability - a constructive proposal, Ecological Economics, 39 (1), pp. 101-114 
• Pollution havens: an analysis of policy options for dealing with an elusive phenomenon, Journal of Environment & Development, 10 (2), pp. 147-177 
• Convergence in access to safe water and sanitation: An analysis across countries and time, International Journal of Water , 1 (2), pp. 210-216 
• Do countries fail to raise environmental standards? An evaluation of policy options addressing "regulatory chill", International Journal of Sustainable Development, 4 (3), pp. 231-244
• A blueprint for making the prospective Mediterranean Free Trade Zone an environmental role model, European Environment, 11 (4), pp. 173-184 (pdf)
• Overcoming barriers to campus greening (together with Marianne Dahle), International Journal of Sustainability in Higher Education, 2 (2), pp. 139-160 

2000

• Resource accounting in measures of unsustainability: Challenging the World Bank's conclusions, Environmental and Resource Economics, 15 (3), pp. 257-278 
• On the methodology of ISEW, GPI and related measures: some constructive comments and some doubt on the threshold hypothesis, Ecological Economics, 34 (3), pp. 347-361 
• Trade measures in multilateral environmental agreements and WTO rules: potential for conflict, scope for reconciliation, Aussenwirtschaft, 55 (3), pp. 1-24 
• Trade and the environment: A critical assessment and some suggestions for reconciliation, Journal of Environment and Development, 9 (2), pp. 138-159 
• Scarce or abundant? The economics of natural resource availability, Journal of Economic Surveys, 14 (3), pp. 185-192 
• In defense of historical accountability for greenhouse gas emissions, Ecological Economics, 33 (2), pp. 185-192 
• German packaging waste management: a successful voluntary agreement with less successful environmental effects, European Environment, 10 (3), pp. 152-163 
• Beyond growth: against the misplaced focus on economic growth, Politische Ökologie, 18, August/September, pp. 19-23 

1999

• Global warming: Discounting is not the issue, but substitutability is, Energy Policy, 27 (1), pp. 33-43 
• The ISEW: Not an indicator of sustainable economic welfare, Social Indicators Research, 48 (1), pp. 77-101 
• Multilateral agreement on investment: Lessons for the WTO from the failed OECD-negotiations, Wirtschaftspolitische Blätter 46 (6), pp. 618-628 
• Developing countries in the WTO: Support or resist a new Millennium round of trade negotiations?, Development in Practice 9 (5), pp. 592-595 

 1998 

• Preserving natural capital in a world of uncertainty and scarce financial resources, International Journal of Sustainable Development and World Ecology, 5 (1), pp. 27-42 
• Is economic growth the environment's best friend?, Zeitschrift für Umweltpolitik und Umweltrecht (Journal of Environmental Law and Policy) 2/98, pp. 161-176