Criticism 1: Social capital is a concept based on a misleading metaphor – it isn’t capital
Social capital seems to be different from other types of capital as described by economists. While this need not be a problem for the concept if it is coherently explained in relation to other forms of capital, or as a complementary part of the family of capitals, its difference to the convention notion of capital has been acknowledged but rarely interrogated. One example of such an interrogation is found in economist Kenneth Arrow’s work (Arrow 1999). Arrow argues that the word “capital” implies three elements: extension in time; an intended sacrifice for deferred benefit; alienability. Arrow concludes that the concept of social capital lacks each of the three elements required to be a genuine example of capital and therefore found no reason for “adding something called ‘social capital’ to other forms of capital” (Arrow 1999: 4). Further to this, those outside economics recognise that the difference with other forms of capital weaken the explanatory power of the concept through confusion with the functions of other forms of capital. For example Samuel Bowles argues that while the concept “social capital” might describe important relationships, the term itself and the way it is conceptualised in the literature, is so unlike other forms of capital that the term “social capital” should be abandoned:
Social capital seems to be different from other types of capital as described by economists. While this need not be a problem for the concept if it is coherently explained in relation to other forms of capital, or as a complementary part of the family of capitals, its difference to the convention notion of capital has been acknowledged but rarely interrogated. One example of such an interrogation is found in economist Kenneth Arrow’s work (Arrow 1999). Arrow argues that the word “capital” implies three elements: extension in time; an intended sacrifice for deferred benefit; alienability. Arrow concludes that the concept of social capital lacks each of the three elements required to be a genuine example of capital and therefore found no reason for “adding something called ‘social capital’ to other forms of capital” (Arrow 1999: 4). Further to this, those outside economics recognise that the difference with other forms of capital weaken the explanatory power of the concept through confusion with the functions of other forms of capital. For example Samuel Bowles argues that while the concept “social capital” might describe important relationships, the term itself and the way it is conceptualised in the literature, is so unlike other forms of capital that the term “social capital” should be abandoned:
“Capital” refers to a thing possessed by individuals; even a social isolate like Robinson Crusoe had an axe and a fishing net. By contrast, the attributes said to make up social capital—such as trust, commitment to others, adhering to social norms and punishing those who violate them—describe relationships among people (Bowles 1999: 6)

