The general idea of social capital is that relationships matter. In this sense, trust, cooperation and reciprocity involved in these relationships can have a positive impact on the wealth of the society by reducing transaction costs, facilitating collective actions and lowering opportunistic behavior. This work sheds light on the different theoretical and empirical problems that a scholar is likely to face in dealing with social capital research and analysis. We propose a critical road map of the social capital theories and applications for a general audience, nonusers included, with particular attention to the works of political and social economists. We provide a critical debate on the different definitions and measures produced, the theoretical frameworks developed and the empirical techniques adopted so far in the analysis of the impact of social capital on socio-economic outcomes. We turn to the limitations of these techniques and we suggest some basic strategies to reduce the magnitude of these limitations.

We conduct the first empirical investigation into the relationship between prosocial behaviour and tax morale in a context under state capacity building like the Palestinian Territories. We consider public spirit and associational activity two major expressions of pro-social behaviour and we estimate their impact on Palestinians' tax morale (intrinsic motivation to pay taxes). The empirical analysis employs a unique Palestinian public opinion survey conducted in 2007 in West Bank and Gaza Strip. By using a bivariate probit model, we find that tax morale increases with public spirit but it is lower among Palestinians involved in associational activities. Predicted conditional probabilities indicate that public spirit has more impact when the respondent has low confidence in the institutions and in the rule of law.Finally, more public spirit is required for a self-employee in order to deal with tax compliance than for a worker in the public sector, unless the worker in the public sector has lower confidence in the institutions and in the rule of law than the self-employee.

This paper contributes to the literature by conducting the first empirical investigation into the determinants of prosocial behaviour in the Palestinian Territories, with a focus on the role of trust and institutions. Drawing on a unique dataset collected through the administration of a questionnaire to a representative sample of the population of the West Bank and the Gaza Strip, we have found that institutional trust is the strongest predictor of prosociality. This result suggests that, in collectivist societies with low levels of generalized trust, the lack of citizens' confidence in the fairness and efficiency of public institutions may compromise social order. The strengthening of institutional trust may also reinforce prosocial behaviour in individualist societies, where a decline in generalized trust has been documented by empirical studies.

We examine the cultural context for individual's trust in public institutions. To shed some light on possible cultural explanations from a more comparative perspective and cover a wider set of cultural aspects, we use indicators of cultural dimensions by Kaasa et al. (2014) based on Hofstede's (1980) approach. Multilevel regression analysis is conducted with individual-level data from two waves of the European Social Survey (2008, 2010) and regional-level data from multiple sources. Confirmatory factor analysis is used to construct the indicators of social and institutional trust and corruption. Our results suggest that individuals tend to trust institutions less in regions with large power distance. Hence, an important key for governments being more successful in achieving their aims seems to be related to improving the sense of participation and civic responsibility.

Citizens' tax compliance should not only respond to the quality of formal institutions, but might also be culturally driven. We contribute to this literature by investigating whether tax morale, an individual's intrinsic non-pecuniary motivation to comply with taxes, is associated with the cultural values (following Hofstede's typology) held by this individual. The analysis exploits four waves of the European Values Survey (1981–2010) across 48 countries. The cultural dimensions are constructed through a polychoric principal component analysis on a set of relevant survey items consistent with Hofstede's definitions. Ordered logit estimations suggest that although values of individualism and femininity are associated with higher individual's tax morale, power distance and uncertainty avoidance are associated with lower tax morale. These results remain consistent as we increase the level of granularity of our investigation through within-region analyses and, subsequently, within-cohort analyses. We argue that these results inevitably enrich the emerging debate about cultural values and citizens' compliance with formal institutions. They also indicate that societal culture as well as individual values should be considered when designing policies aiming to improve tax compliance.