This paper explains how informal institutions influence the reaction to the COVID-19 pandemic and the response to formal restrictions. I claim that it is not enough to introduce countermeasures, as individuals must follow them if they are to be effective. The acceptance of such measures is reflected in individuals' degrees of mobility decrease and contact reduction, the aims of governmental restrictions. I identify a group of attitudes connected with individuals' responses that differ across countries. They are associated with social relations and approaches to dealing with problems. The analysis confirms that formal restrictions can be seen as successful only if they are supported by strong informal institutions. In some cases, they even define individuals' reactions more than formal recommendations. The findings are useful not only for explaining the special case of reaction to pandemic restrictions but also for investigating what generally determines individuals' compliance with formal rules.

The cross-dehydrogenative arylation of benzylic C–H bonds with arenes provides straightforward access to synthetically useful 1,1-diarylmethanes, from readily available starting materials. Current approaches suffer from limited substrate scope, requirement for...

Purpose: The purpose of this paper is to identify changes in formal and informal institutions that influence the sharing economy development. Design/methodology/approach: An approach to the analysis of sharing economy based on institutional economics has been proposed. It considers both formal and informal institutions vital for the sharing economy's development. However, it focuses on the latter as the nature, role and design of informal institutions remain undiscovered while for sharing economy they seem crucial. Findings: Based on the findings it can be argued that informal institutions are of great importance for the sharing economy development. Despite the often-stressed role of regulations, it becomes clear that in this case, informal institutions may evolve more quickly and fill the gaps left by formal norms. It is of great importance than to support trust growth between the users and strengthen the evolution of property's perceptionfrom owning to sharing. Practical implications: The results may be useful for the sharing platforms as they stress the importance of their regulations and role in building trust between the users and providers of goods or services. They may contribute to a better design of the platforms and further development. The findings are important also for the users as they need an encouraging environment to operate effectively. Originality/value: The research is original because of the adopted perspectiverarely is the institutional economics base for sharing economy analysis, still, it offers important insights. The analysis indicates important changes in institutions connected with sharing economy and points which of them are crucial for its further development. Moreover, it stresses the role of informal institutions which despite growing importance are often excluded from the analysis.

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The aim of the study is to analyse how the social capital in Poland affects contracting. It's role is significant as the contracts concluded on the market are incomplete, i.e. they do not regulate all the issues explicitly. The effects of contractual incompleteness can be mitigated by the high level of trust and well-developed social capital. However, the research results show that the level of trust in Poland has been low for years and that social capital remains underdeveloped. It prevents the social capital to fulfil its role as a factor supporting the conclusion of contracts properly. This results in a real loss for enterprises, as part of the transactions is not conducted.