Key issues in this interaction are how the institution of religion influences the institutions of law and state, and therefore, prosperity (institutional influence of religion) (see Sect. 5.3). On the cultural influence of religion (Weberian), central questions are “how religiosity affects individual characteristics, such as work ethic, honesty and thrift, and thereby influences economic performance” (McCleary & Barro, 2006, p. 49).
7.1.1 The Weberian “Cultural” Argument on Christianity and Prosperity (1)
Max Weber linked religion and economic performance arguing that the Protestant Reformation initiated modern capitalism, with Protestant societies outpacing Catholic ones economically (Weber, 1905). Weber’s classic thesis illustrated prosperity differences between diverse religious affiliations using taxable capital available in Baden in 1895. He found that tax returns from financial capital totalled over four millions marks per 1000 Jews; 954,000 marks per 1000 Protestants and 589,000 marks per 1000 Catholics (Weber, 1905, p. 133). Based on this evidence, Weber advanced a Protestant work ethic-based theory of prosperity. Accordingly, Protestant beliefs (e.g. Calvinist, Puritans) would enhance the economy “by fostering traits such as work ethic, honesty (and hence trust), thrift, charity, hospitality to strangers and so on” (McCleary & Barro, 2006, p. 51).
Following Weber (1905), numerous quantitative studies have analysed the empirical relationships between prosperity indicators (mainly GDP) and religious affiliation (mostly the proportion of adherents). Thousands of articles and hundreds of books have discussed (and continue to discuss) Weber’s thesis. Some works widely accept his claim as one of the most valid explanations of the rise of Western Civilisation while others criticise particular points (Ferguson, 2011); (Berman, 2003, p. 24); (Becker et al., 2016).
However, empirical research on prosperity determinants typically—and blindly—neglects the influence of religion (Barro & McCleary, 2003, p. 760). Religion as a determinant suffers from similar mainstream disregards in other disciplines such as law (Berman, 2003; Witte, 2002), international relations (Snyder, 2011), or political science (Manow & van Kersbergen, 2009).
7.1.2 Some Empirical Studies Refuting Weber’s Thesis
The results and conclusions of several empirical studies associating religion and prosperity vary depending on the type of prosperity proxy variables chosen. Also, the spatial (cross-country, national, or subnational) and temporal configurations of these studies influence the different outcomes.
Acemoglu et al. (2001, 2006) found no effect of religion (adherents) on economic growth in cross-country settings. As shown, concentrating only on religious adherents is problematic (Sect. 5.3.1), yet Delacroix and Nielsen (2001) reported mixed results from comparing different historical periods and proxy variables. Other empirical studies refuting Weber’s thesis have been performed at a subnational level. Cantoni (2015), for instance, found no effects of Protestantism on population figures used as proxies of economic growth. He used a dataset comprising 272 cities in the period 1300–1900 in the German Lands of the so-called “Holy” Roman Empire. The main problem of Cantoni’s approach lies in accepting city size as a proxy of prosperity. Thus, the city-size argument might lead one to consider Sao Paulo or Mexico DC as far more prosperous than Bern or Brussels today, for instance. Moreover, while Cantoni’s finding might be accurate at a subnational level, it cannot account for the historical performance of Germany as a whole compared to other countries with a Catholic tradition (e.g. Portugal or Spain).
7.1.3 Most Empirical Studies Confirm Weber’s Thesis (Although for Different Reasons)
Based on their comparative examination and systematic, state-of-the-art synthesis, Becker et al. (2016) concluded that historical Protestantism encouraged a wide range of societal developments. Balancing the empirical evidence, most studies have confirmed a positive impact of Protestantism on prosperity using different variables as well as diverse spatial and temporal configurations. On the whole, most empirical studies examining the consequences of the Reformation associate them with positive developments of governance and the economy (Becker et al., 2016).
Economic prosperity has also been robustly linked with secularisation and declining levels of religiosity (Barro & McCleary, 2003; Inglehart & Baker, 2000). Secularisation precedes economic growth, which means that prosperity did not cause secularisation in the past (Ruck et al., 2018). Historically, Protestantism is a well-established precursor of secularism (Snyder, 2011; Agnew, 2010; Shah & Philpott, 2011; Woodberry, 2012; Berger, 1990; Gregory, 2012; Sect. 8.3.4.4). Therefore, the causal arrows seem to run from historical Protestantism (anti-clericalism) to secularisation, to economic prosperity and security, and to postmaterialist values (Granato et al., 1996; Inglehart & Baker, 2000).
Hence, the effects of Protestantism may not be immediate (i.e. considering the previously explained causal arrows). Capitalism emerged during the three centuries after the Reformation, mainly in the Protestant regions of Europe and the New World, and among Protestant minorities in Catholic countries. In contrast, pre-industrial societies were “zero-sum systems” where little or no economic growth took place (Granato et al., 1996). Consequently, Granato et al. (1996) argued that Protestantism has been decisive as it “undermines a set of religious norms that inhibit economic achievement and are common to most preindustrial societies”. Therefore, the authors explain that “Weber is correct in arguing that the rise of Protestantism is a crucial event in the modernization of Europe” (pp. 609–610).
Furthermore, historically Protestant countries still differ considerably in their values and attitudes today compared with Roman Catholic, Orthodox, or Islamic societies. Such enduring effects influence prosperity in the longue durée, although few people are still religious in present-day Protestant Europe, for instance (Inglehart & Baker, 2000, p. 49; see also Chap. 10). It is therefore hardly surprising that influential works link empirically good economic outcomes to Protestantism in different sets of countries. However, such studies recognise the effect of historical Protestantism as a pivotal precursor of prosperity pillars rather than as a direct prosperity trigger in a classical Weberian sense. Thus, for instance, the robust empirical associations of Protestantism with prosperity relate to the development of democratic institutions (Woodberry, 2012), the rise of education and printing (Becker & Woessmann, 2009), and the weakening of hierarchical structures (La Porta et al., 1999; Volonté, 2015).