2Roberto Perotti. Growth, income distribution, and democracy: What the data say[J] 1996,Journal of Economic Growth(2):149~187
3Professor Harrie A. A. Verbon,Marijn J. M. Verhoeven. Decision making on pension schemes under rational expectations[J] 1992,Journal of Economics Zeitschrift für National?konomie(1):71~97
4. Voting for social security[J] 1985,Public Choice(3):225~240