The Policy Agendas Project (PAP) was developed in the United States in the early 1990s as a means of collecting data on the contents of the policy agenda. The PAP coding method has subsequently been employed in the United Kingdom, a number of European countries, Canada, Israel, New Zealand, as well as the state of Pennsylvania (http://www.comparativeagendas.org/). What does PAP measure? How does it measure it? What does it find? How does it explain what it finds? We use these questions to structure our review.

Previous research on deregulation in industrialised countries emphasises differences between left-wing and right-wing parties, but data on product market regulation (PMR) indicate that these differences have been modest. If partisan preferences on the merits of deregulation differ sharply, why such modest differences? We argue that partisan differences only become pronounced when the government is strong and rules a relatively unified legislature. Thus, legislative fragmentation should reduce the left-right difference in PMR. We test this theory against PMR data in 29 industrialised countries, 1978–2007. We find that right-wing governments only have a strong negative effect on regulation if the legislature and the government are not fragmented.

A growing literature in public policy, comparative politics and international relations has studied how the policies of one unit (e.g. country, federal state or city) are influenced by the policies of other units – that is, how policies diffuse. This article provides a meta-analysis of 114 studies, demonstrating persisting inconsistencies in the measurement of the mechanisms driving policy diffusion processes. Different indicators are used to measure the same mechanism, and the same indicators are used to measure different mechanisms. To improve this state of affairs, this article puts forward a conceptual structure that serves as a guide for the application of diffusion arguments, a starting point for theoretical refinement and a benchmark to assess measurement validity. In addition to paying more attention to the conceptual consistency of indicators, overcoming the problems currently found in the literature requires the construction of original, innovative research designs instead of the replication of widely used templates.

This article argues that public opinion on retirement is related to people’s causal beliefs about how labour markets work. Whereas voters do not think that there is an employment trade-off between older and younger workers in some European countries, in others, this is a dominant paradigm. When they believe this trade-off exists, people are more hostile to reforms that lead to longer working lives. The article uses Eurobarometer data to investigate the determinants of this belief – for instance, more people being led to believe in such a trade-off under high levels of labour market regulation. The article then goes on to show that this belief is related to policy preferences about early retirement. Finally, the article illustrates the political consequences of this belief and shows that it affects many policy areas even beyond early retirement.

The efficient use of market-based policy instruments is an area of increasing importance as scholars and policymakers work to balance effective climate policy with economic growth. Carbon allowances and carbon offsets, despite being statutorily substitutable, behave in practice like imperfect substitutes. This paper provides a synthesis of extant work, market data and the regulatory frameworks of the world’s major carbon markets, and provides a comprehensive assessment of the drivers of demand for carbon offsets. It also provides a detailed assessment of the process through which international carbon offsets are produced, the UN’s Clean Development Mechanism. Demand for carbon offsets is heavily influenced by key programme design parameters that are specific to carbon market design and its implementation. These design parameters heavily influence the degree to which transaction costs, regulatory uncertainty and risk factor into the decisions of firms operating within the carbon trading programme. This paper also identifies key extra-statutory drivers that are outside of the policymaker’s control, which should be considered in both the policy design and the implementation process. This paper provides an instructive set of guiding criteria for policymakers and scholars for the design of future market-based environmental policy.