"Prospects for the Welfare State", CeALCI, Fundación Carolina, 2008.
"The Welfare State – Background, Achievements, Problems". New Palgrave Dictionary, 2nd edition, 2006.
"Conceptualization of Non-Financial Defined Contribution Systems". In Robert Holzmann and Edward Palmer, eds., Pension Reform: Issues and Prospects for Non-Financial Defined Contribution (NDC) Schemes. World Bank, Washington, DC, September 2005.
"An Essay on Welfare State Dynamics". In Bo Södersten, ed., Globalization and the Welfare State. Basingstoke and New York: Palgrave Macmillan, 2004.
"Improving the Performance of the European Social Model – The Welfare State over the Life Cycle". In Jordi Gaul, ed., Building a Dynamic Europe. Cambridge University Press, 2004.
"Changing Tides for the Welfare State: An Essay". In Sijbjen Cnossen and Hans-Werner Sinn, eds., Public Finance and Public Policy in the New Century. CESifo Seminar Series, MIT Press, Cambridge, MA, 2003.
"From the Cradle to the Grave. A prescription for reform of European welfare states over the individual’s life cycle". A publication in Skandia’s Social Focus series, Stockholm 2002.
"Pensions and Contemporary Socioeconomic Change". In Martin Feldstein and Horst Siebert, eds., Social Security Pension Reform in Europe, National Bureau of Economic Research Conference Report. Chicago: University of Chicago Press, 2002.
"Unemployment – Structural". In Neil J. Smelser and Paul B. Baltes, eds., International Encyclopedia of the Social and Behavioral Sciences. Pergamon, Elsevier Science, Oxford, 2002.
"Lessons from Sweden for Post-Socialist Countries". In Janos Kornai, Stephan Haggard and Robert R. Kaufman, eds., Reforming the State, Fiscal and Welfare Reform in Post-Socialist Countries. Cambridge: Cambridge University Press, 2001.
"The Labor Market". In Governance, Equity and Global Markets. Proceedings of the Annual Bank Conference on Development Economics in Europe, Paris, June 21-23, 1999, Paris: La Documentation Française, 2000.
"How Can Economic Policy Strike a Balance between Economic Efficiency and Income Equality?" In Income Inequality: Issues and Policy Options. The Federal Reserve Bank of Kansas City, 1998.
"Incentives in the Welfare State: Lessons for Would-Be Welfare States". The Austin Robinson Lecture, Tunis, Dec. 1995. In Yair Mundlak, ed., Contemporary Economic Issues. Proceedings of the Eleventh World Congress of the International Economic Association, Vol 2: Labour, Food and Poverty, Macmillan Press Ltd, London, 1998.
"Stabilization Policy in Open Economies with Endogenous Politicians". In Political business cycles. Elgar Reference Collection. International Library of Critical Writings in Economics, vol. 79. Cheltenham, U.K. and Lyme, N.H.: Elgar; distributed by American International Distribution Corporation, Williston, Vt, 1997.
The Swedish Experiment. Stockholm: SNS Förlag, 1997.
"Welfare State Dynamics". In The Welfare State in Europe, Challenges and Reforms. European Economy (European Commission, Directorate-General for Economic and Financial Affairs), No. 4, 1997.