Social Networks and Trust discusses two possible explanations for the emergence of trust via social networks. If network members can sanction untrustworthiness of actors, these actors may refrain from acting in an untrustworthy manner. Moreover, if actors are informed regularly about trustworthy behavior of others, trust will grow among these actors.
A unique combination of formal model building and empirical methodology is used to derive and test hypotheses about the effects of networks on trust. The models combine elements from game theory, which is mainly used in economics, and social network analysis, which is mainly used in sociology.
The hypotheses are tested (1) by analyzing contracts in information technology transactions from a survey on small and medium-sized enterprises and (2) by studying judgments of subjects in a vignette experiment related to hypothetical transactions with a used-car dealer.

Micro-Macro Links and Microfoundations in Sociology focuses on two main issues in sociology. Firstly, how macro-conditions can explain macro-outcomes mediated by actor behaviour at the micro-level (micro-macro links). Secondly, how alternative micro-models affect macro-outcomes (microfoundations). The contributions reflect key features of micro-macro modelling in sociology as well as recent progress in this field. The chapters address core features of explanations of social phenomena using micro-macro models, the problem of cooperation, heterogeneity of actors, structural balance, opinion formation, segregation, and problems of micro-macro models that are based on rational choice assumptions. Moreover, the contributions show how different research methods can be applied fruitfully, such as laboratory experiments, equilibrium analysis, and agent-based modelling. As a result, the book can be a guide for graduate students who want to develop their skills in building micro-macro models. In addition, the book provides specialists of the different substantive research areas with up-to-date new developments in their research area. This book was originally published as a special issue of Journal of Mathematical Sociology.

Micro-Macro Links and Microfoundations in Sociology focuses on two main issues in sociology. Firstly, how macro-conditions can explain macro-outcomes mediated by actor behaviour at the micro-level (micro-macro links). Secondly, how alternative micro-models affect macro-outcomes (microfoundations). The contributions reflect key features of micro-macro modelling in sociology as well as recent progress in this field. The chapters address core features of explanations of social phenomena using micro-macro models, the problem of cooperation, heterogeneity of actors, structural balance, opinion formation, segregation, and problems of micro-macro models that are based on rational choice assumptions. Moreover, the contributions show how different research methods can be applied fruitfully, such as laboratory experiments, equilibrium analysis, and agent-based modelling. As a result, the book can be a guide for graduate students who want to develop their skills in building micro-macro models. In addition, the book provides specialists of the different substantive research areas with up-to-date new developments in their research area. This book was originally published as a special issue of Journal of Mathematical Sociology.

The problem of cooperation is one of the core issues in sociology and social science more in general. The key question is how humans, groups, organizations, institutions, and countries can avoid or overcome the collective good dilemmas that could lead to a Hobbesian "war of all against all". The chapters in this book provide state of the art examples of research on this crucial topic. These include theoretical, laboratory, and field studies on trust and cooperation, thereby approaching the issue in three complementary and synergetic ways. The theoretical work covers articles on trust and control, reputation formation, and paradigmatic articles on the benefits and caveats of abstracting reality into models. The laboratory studies test the implications of different models of trust and reputation, such as the effects of social and institutional embeddedness and the potentially emerging inequalities this may cause. The field studies test these implications in applied settings such as business purchasing and supply, informal care, and different kinds of collaboration networks. This book is exemplary for rigorous social science. The focus is on effects of social conditions, in particular different forms of social and institutional embeddedness, on social outcomes at the macro level. Modelling efforts are applied to connect social conditions to social outcomes through micro-level behavior in ways that are easily overlooked when argumentation is intuitive and impressionistic. The book sets forth a mixed-method approach by applying different empirical methods to test hypotheses about similar questions. Several contributions re-evaluate the theoretical strengths and weaknesses following from the laboratory and field studies. Improving the theory in light of these findings facilitates pushing the boundaries of social science .

Social Networks and Trust discusses two possible explanations for the emergence of trust via social networks. If network members can sanction untrustworthiness of actors, these actors may refrain from acting in an untrustworthy manner. Moreover, if actors are informed regularly about trustworthy behavior of others, trust will grow among these actors.
A unique combination of formal model building and empirical methodology is used to derive and test hypotheses about the effects of networks on trust. The models combine elements from game theory, which is mainly used in economics, and social network analysis, which is mainly used in sociology.
The hypotheses are tested (1) by analyzing contracts in information technology transactions from a survey on small and medium-sized enterprises and (2) by studying judgments of subjects in a vignette experiment related to hypothetical transactions with a used-car dealer.