Neoclassical economics is based on and structured around the notion of homo economicus. The theory of consumer choice, the theory of the firm, industrial organization, and welfare theorems all require the assumption that agents act in accordance with the scheme of individualistic rational optimization. In this context, our contribution is threefold. First, we delimit the notion of homo economicus according to five characteristics or dimensions. Second, we critically review this anthropological scheme from five distinct approaches, namely, behavioral economics, institutional economics, political economy, economic anthropology, and ecological economics. Third, we conclude that the scheme of homo economicus is clearly inadequate and deficient. However, despite its inadequacies, it remains one of the fundamental pillars of the neoclassical paradigm in economics, which allows us to discuss why we have not yet overcome this paradigm.

PurposeThe purpose of this paper is to analyze the effects of corruption on economic growth, human development and natural resources in Latin American and Nordic countries.Design/methodology/approachUsing the hierarchical prior of Gelman et al. (2003), a Bayesian panel Vector AutoRegression (VAR) model is estimated. In addition, two alternative approaches are considered, namely, a panel error correction VAR model and an asymmetric panel VAR model.FindingsThe results reveal some relevant contrasts: (1) in Latin America there is support for the sand the wheels hypothesis in Bolivia and Chile, support for the grease the wheels hypothesis in Colombia and no significant impact of corruption on growth in Brazil and Peru, while in Nordic countries the response of growth to shocks in corruption is negative in all cases; (2) corruption negatively affects human development in all countries from both regions; (3) corruption tends to spur natural resources sector in Latin American countries, while it is detrimental for natural resources sector in Nordic countries.Research limitations/implicationsThe panel VAR approach uses recursive scheme identification. The authors have analyzed robustness using alternative ordering of the variables. The authors also have followed two alternatives suggested by the Referee: a panel error correction VAR model and a panel asymmetric VAR model. However, another more sophisticated identification scheme could be used. Also other variables could be introduced in the VAR model.Practical implicationsRegardless of the issue of the “grease” vs the “sand the wheels” debate, corruption should be reduced because it is anyway harmful for human development. The differences in the results for Latin American and Nordic countries show that the effects of corruption have to be assessed considering the different institutional and economic conditions of the countries analyzed.Social implicationsGovernments should seek to reduce corruption because, despite corruption can have mixed effects on economic growth in some contexts, it is anyway harmful for human development. Besides, the finding that in some Latin American countries more activity in the extractive industries is generated by means of corruption confirm the association between corruption and extractivism found by Gudynas (2017) and can explain why there are issues of environmental damage and social conflict linked to natural resources in those countries.Originality/valueThe present study contributes to the literature by presenting evidence on the effects of corruption on growth, human development and natural resources sector in Latin American and Nordic countries. It is the first study on economics of corruption which directly compares Latin American and Nordic countries. This is relevant because there are important differences between both regions since Latin American countries tend to suffer from widespread corruption, while the Nordic ones have a high level of transparency. It is also the first in using a Bayesian panel VAR approach in order to evaluate the effects of corruption.

This article provides a survey of the existing literature on the effects of corruption on economic growth, foreign direct investment, income inequality, human development, and natural resources sector. Both the theoretical arguments and the empirical evidence are considered. It is found that: i) Several studies support a negative impact of corruption on growth (sand the wheel hypothesis), but there are also studies supporting a positive impact (grease the wheels hypothesis); ii) Concerning the impact of corruption on foreign direct investment, the evidence is also mixed since there are studies supporting a negative effect (the "grabbing hand" view), a positive effect (the "helping hand" view), and even no significant effect; iii) The great majority of studies find that corruption generates more income inequality, although some studies find an inverse relationship in regions where the informal sector is large; iv) There is a strong consensus regarding that corruption hampers human development by affecting aspects like poverty, education and health; v) Most of studies show that there is a direct association between corruption and the natural resources sector, especially in the mining, oil and gas industries. In addition, research challenges of economics of corruption in aspects like the definition of corruption, multidisciplinary perspective, econometric specification, and data issues are discussed.

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