Most with Erich Gundlach, 
				GIGA IAS and Hamburg University, Germany
				Income and Democracy: 
				A comment on Acemoglu, Johnson, Robinson and Yared (2008).
				October 2008. 
				
				
				The polity data: 
				An analysis of their properties. 
				March 2009. 
				
				The democratic transition in a generic country
				A graphical exposition
				September 2010.
	
								
				
				The demographic transition
				an estimate of the typical path
				September 2010.
	
						
				
				The agricultural transition in a generic country
				A graphical exposition
				September 2010.
				
				
				The transition of corruption
				Causality and two models
				September 2010.
				
				
				
				The religious transition and the transition in support for capitalism
				Causality and two models
				September 2010.
			
										
				
				Background paper to the spirits of capitalism and socialism.
				With Christian Bjørnskov, My department 
				August 2010.
				Description of the Polity-data used
				New version for: Why do political regimes change? 
				A study of triggering events. 
				August 2017.
Measuring Democracy, 1972-2016 How different are eight democracy indices? Discussion paper June 2021.
				Measuring democracy, 1960-2016
				How different are the Polity and the V-Dem indices?
				Discussion paper June 2021.
Appendix to the measuring democracy papers
				The Kernel-pair method of causal analysis of macro relations
				Show how kernel regressions may give causal evidence
				Version 4 2023