The number of comparative tax law studies is substantial. The available literature on the methodology behind these tax comparisons, however, is rather limited and underdeveloped. This article aims to contribute to the theoretical background of tax comparisons by explicating methodological considerations in a comparative tax research on tax incentives for cross-border donations and relating it to the available methodological literature. Two aspects of tax law make comparative research in tax law a challenging endeavour: its complexity and fast-changing nature. To overcome these issues, this article proposes to divide jurisdictions into a limited number of categories. In this process the different legal levels are analysed systematically, resulting in categories of jurisdictions. Among the jurisdictions in one category, common characteristics are identified. This results in an abstract description of the category. I use the term ‘ideal types’ for these categories. The high level of abstraction in the use of ideal types allows for comparison of tax jurisdictions, without the risk that the comparison gets outdated. An additional advantage of working with ideal types is that the conclusions of the comparison can be applied to all jurisdictions that fit in the ideal type. This increases the generalisability of the conclusions of the comparative tax research.

The evolution of the case law in the field of free movement of goods has been marked by consecutive changes in the legal tests applied by the Court of Justice of the European Union for the determination of the existence of a trade restriction. Starting with the broad Dassonville and Cassis de Dijon definition of MEEQR (measures having equivalent effect to a quantitative restriction), the Court subsequently introduced the Keck-concept of ‘selling arrangements’, which allowed for more regulatory autonomy of the Member States, but proved insufficient to capture disguised trade restrictions. Ultimately, a refined ‘market access’ test was adopted, qualified by the requirement of a ‘substantial’ hindrance on inter-State trade. Contrary to the free movement of goods, the free movement of capital has not undergone the same evolutionary process. Focusing on the ‘golden shares’ case law, this article questions the broad interpretation of ‘capital restrictions’ and seeks to investigate whether the underlying rationale of striking down any special right that could have a potential deterrent effect on inter-State investment is compatible with the constitutional foundations of negative integration. So far the Court seems to promote a company law regime that endorses shareholders’ primacy, lacking, however, the constitutional and institutional legitimacy to decide on such a highly political question. It is thus suggested that a refined test should be adopted that would capture measures departing from ordinary company law and hindering market access of foreign investors, while at the same time allowing Member States to determine their corporate governance systems.

In 2012, China revised its Criminal Procedure Law (2012 CPL). One of the major changes is its official approval of the use of victim-offender reconciliation, or ‘criminal reconciliation’ in certain public prosecution cases. This change, on the one hand, echoes the Confucian doctrine that favours harmonious inter-personal relationships and mediation, while, on the other hand, it deviates from the direction of legal reforms dating from the 1970s through the late 1990s. Questions have emerged concerning not only the cause of this change in legal norms but also the proper position of criminal reconciliation in the current criminal justice system in China. The answers to these questions largely rely on understanding the role of traditional informal dispute resolution as well as its interaction with legal norms. Criminal reconciliation in ancient China functioned as a means to centralise imperial power by decentralizing decentralising its administration. Abolishing or enabling such a mechanism in law is merely a small part of the government’s strategy to react to political or social crises and to maintain social stability. However, its actual effect depends on the vitality of Confucianism, which in turn relies on the economic foundation and corresponding structure of society.