Social capital

Social capital is an interdisciplinary social science concept that has been used to bring together aspects of social conduct, such as trust and cooperation, that may be expected to contribute to the well-being of a community. There have been attempts to quantify its influence upon community achievements, but there is no agreement concerning the weights that should be assigned to its components, and there have been reservations about the validity of any attempt to aggregate them.

Definition and implications
The term 'social capital' was introduced by L.J. Hanifan in his 1916 and 1920 studies of the rural community center. In the latter, he defined social capital as "that in life which tends to make ... tangible substances count for most in the daily lives of a people; namely, good will, fellowship, sympathy, and social intercourse among the individuals and families who make up a social unit." He further proposed that, just as financial capital must be amassed before a construction project can commence, social capital must be accummulated in order for meaningful community building to take place.

Nevertheless, Hanifan's contribution went unrecognized for many years. In Foundations of Social Theory, for example, the sociologist James Coleman credits the term to Glenn Loury, an economist who in 1977 defined social capital as a set of designated intangible resources in families and communities that help to promote the social development of young people. Loury himself credited Jane Jacobs, who used the term in her 1961 book, The Death and Life of Great American Cities.

There are many definitions of social capital in social and political science. One widely accepted version defines it as an “investment in social relations with expected returns in the marketplace.” This definition is consistent with interpretations by  Pierre Bourdieu, Nan Lin, James Coleman, Hendrik Flap, Ronald Burt, Robert Putnam, Jenny Onyx, Bonnie Erickson and others; nevertheless, it remains a matter of controversy, as noted in the concluding section of this article. The sociologist Pierre Bourdieu defined the concept as “the aggregate of the actual or potential resources which are linked to possession of a durable network of more or less institutionalized relationships of mutual acquaintance or recognition”. He pointed out that “Social capital is the sum of the resources, actual and virtual, that accrue to an individual or a group by virtue of possessing a durable network of more or less institutionalized relationships of mutual acquaintances and recognition.” Francis Fukuyama defined it as "a capability that arises from the prevalence of trust in a society." James Coleman defined social capital “as a variety of entities with two elements in common: They all consist of some aspect of social structure, and they facilitate certain action of actors-whether persons or corporate actors-within the structure.” To be capital a social structure must serve a function for individuals engaged in an activity. The actors exercise control over the resources in which they have an interest and at least partial control of others involved. Social relations are important to facilitating this action by the actors.

The concept of social capital can be related to similar concepts of civil society that are drawn from the works of James Madison (in The Federalist Papers), Alexis de Tocqueville (in Democracy in America) and John Stuart Mill (in On Liberty).

Organizational components
Although they are interrelated, it is customary to distinguish the influence of a community's social organization on the social acts of its members from its influence on their individual attitudes. A community's social capital is generally considered to be determined as much by the collective traditions, beliefs and value systems that are part of its culture, as by the cognitive characteristics and perceptions of its members. Similarly, the collectively-determined rules embodied in a community’s institutions, are considered to be as necessary to the development of social capital as the impulses and constraints created by the psychological drives that are experienced by its members. The institutions that are held to be capable of contributing to social capital range from the state apparatus of law-making and enforcement, to the patterns of mutual obligation that are created by interpersonal networks. Interpersonal networks have been categorized by applying the terms "bonding", "bridging" and "linking" to, respectively, networks of family and friends; networks of colleagues and associates; and networks that connect different networks.

Cognitive components
Social influences are considered to provide the principal components of people's social attitudes. Trust, for example, is considered to be influenced mainly by the social institutions that have been referred to. However, there is evidence to suggest that a significant component may also come from the innate or “hard-wired” characteristics of the human brain. Neuroeconomics experiments   have revealed an association between the possession of a particular hormone and a propensity to trust others .) Trust in the sense of believing most people to be trustworthy is referred to in the literature as "generalized trust" to distinguish it from trust in particular categories of people and trust concerning specific issues. Unsurprisingly, it has been found to be highest in communities where there are effective institutions that punish cheats; but it has also been found to be positively associated with education, civil liberties, and ease of communication (roads and telephones) and negatively associated with ethnic diversity and income inequality. Trust is generally held to be an essential component of social capital, as is willingness to conform to collectively-determined rules, but  other  cognitive characteristics have often been been included: notably the willingness to take actions that are for the exclusive benefit of others. Examples include charitable donations, participation in voluntary collective activities, and many other forms of philanthropy. The exercise of such social attitudes has been held to be among the main characteristics of civil society. Beyond those essentials, however, attitudes that are generally conducive to social concord such as tolerance of unfamiliar customs, practices and beliefs and a general preference for  negotiation over confrontation have sometimes been included.

Economic implications
Economists were writing about social capital before that term came into use. Writing in 1891, Alfred Marshall referred to economics as “a branch of biology, interpreted broadly” and attributed differences between successful and unsuccessful economic activity to variations in "general enlightenment ... and habits of mutual trust",  and in the  willingness of people to “sacrifice themselves for the common wellbeing”. Similar statements have been attributed to Thorstein Veblen, writing at about the same time. Some eighty years later the economist Kenneth Arrow remarked that much of the economic backwardness in the world could be explained as "lack of mutual confidence". Until recently, however, social capital had been regarded as merely an exogenous factor that is  necessary to a reasonable standard of  economic efficiency in much the same way as a functioning monetary system; and little attention had been given to its creation or to its quantitative influence. The idea that collective action might be expected to promote economic performance had been specifically rejected in the writings of the economist Mancur Olson (whose views are summarised below under the heading objections and qualifications)

Interest in the quantitative effects of social capital was stimulated by Robert Putnam’s 1993 study of democracy in Italy, in which he attributed the  higher levels of GDP per capita in the North to previously higher levels of  civic engagement, his measure of which gave weight to membership of voluntary organizations (which he referred to as "horizontal ties") ; and later by his essay and best-selling book, "Bowling Alone", in which he attached importance to the decline in membership of voluntary organizations in the United States, (of which he took the decline in membership of bowling clubs to be a typical example). Apparently prompted by Putnam's Italian study, several further examinations of the economic effects of various components of social capital have since been reported. A 1997 study using data collected by the World Bank for a sample of 29 market economies established a statistical association between economic performance and measures of trust and civic cooperation, but did not confirm Putnam's finding about the importance of horizontal ties. In a survey of economic growth studies by Robert Barro several components of social capital emerge as making significant contributions, notably education, the maintenance of law and the strength of democratic institutions.

The topic of the creation of social capital has since been explored at several levels. At the empirical level there have been a number of statistical analyses of the recently-collected data. One such study identified the factors affecting the development of trust as income per person, income distribution, government effectiveness, social cohesion and education . Another analyses evidence concerning the creation of individual social capital. At a more abstract level, explanations of the development of mutual trust have been developed from game theory by means of experiments in the iterative application of the prisoners dilemma game. A one-shot prisoners development game is unlikely to lead to cooperation because it pays each player to defect, but computer simulations of iterated prisoners dilemma games have demonstrated that simple tactics can be devised that lead to a cooperative outcome to the benefit of both players (although when played between humans, cooperation often fails to develop because players succumb to envy). Such an outcome is similar to what biologists term an evolutionary stable strategy because once it becomes a community's established strategy, attempts to depart from it are unlikely to succeed ). At a purely theoretical level a study by economic modeling has produced results that suggest that the development of mutual trust is a slow process that is best pursued gradually, and that it can be hampered by some otherwise productivity-enhancing changes of production methods (providing a possible explanation of the difficulty of successfully transferring developed countries' production methods to developing countries).

Sociological Implications
It has been established by a variety of studies  that social capital  has a direct effect upon the well-being of members of a community in addition to the indirect effects that arise from its economic consequences . The connection between social  capital and individual well-being has been used to explain the fact that, in many countries, and despite growing prosperity,  subjectively – reported well being has not increased over the years – an observation that is often referred to as the “happiness paradox”. The connection has been attributed to the psychological importance  interpersonal relationships and the  decline in happiness in the United States has been related to measures of “relational social capital” .

Other studies have examined its  effects upon health, longevity, suicide rates  and the incidence of crime. In a study sponsored by Britain’s National Health Service, low levels of survey-determined neighborhood attachment were found to be associated with higher risks of mental illness and marital breakdown . A study of  crime among homeless youths in Toronto and Vancouver  established strong associations with social capital. . However,  it was found  from  a cross-country study sponsored by the World Bank that  the only component of social capital  that was   negatively  associated with the incidence of murder,  was trust among community members .

Policy implications
The economist Partha Dasgupta has argued that a personal investment in a reputation for trustworthiness results in beneficial  “externalities”:  that is to say  benefits to others besides the person who makes the investment. It is a generally accepted  proposition of  economic theory that markets tend to underprovide  activities that generate beneficial externalities,  and that it is to the benefit of the community for governments to make up the deficiency. That proposition has been extended to suggest that economic welfare can be increased by government intervention in the provision of many of the components of social capital, and has led to a variety of policy studies. A range of policy proposals has been put forward by the  Saguaro Seminar in the United States , and a research paper by Australia’s Productivity Commission lists some possible policy initiatives to promote social capital, some side-effects of existing policies, and some policies that already  make use of the existing stock of social capital . Although potentially beneficial policies can be readily identified, the problem of quantifying  the benefits of specific interventions, to enable them to be subjected to cost/benefit assessments, remains an obstacle to the  formulation of policies that can be expected to yield net benefits.

Measuring social capital
Measurements of the components of social capital have been undertaken by social researchers in many different countries. In the United States, the Social Community Benchmark Survey was a telephone survey of over 30,000 respondents conducted by a network of researchers in 40 communities in the year 2000. . It was followed up in 2006 by a further selective survey As of the beginning of 2008, over 50 studies have used the Social Benchmark Survey data. The European Union’s  Active Citizen Composite Index combines 63 basic indicators, drawn mainly from the European Social Survey  into a single index  by an arbitrary weighting regime. Composite indexes are also produced concerning the variously-defined topics of social cohesion, civil society, community cohesion, political life, human development, and  corruption perceptions. The World Bank’s Social Capital Assessment Tool gathers information by survey and interview as source data for the assessment of social capital. . Surveys conducted by national statistics agencies  provide a further source of relevant statistics. British statistical surveys containing a social capital element have been listed by their Office of National Statistics

The problem of combining measures of the various components of social capital into a single index number has been tackled by a number of  researchers, but as Francis Fukuyama has noted, there is no consensus as to how it should be done. Robert Putnam combined 13 different measures into a single measure, using factor analysis – a technique that establishes weights related to evidence concerning the effects of each component upon a chosen outcome. Other attempts have been criticized on the grounds that invalid econometrics methods were used.

Objections and qualifications
There is no single consensus approach to social capital. Many of the disputes are interdisciplinary, with economists, sociologists and political scientists often disagreeing about discrete points. There have been objections to Robert Putnam’s approach, for example, on the grounds that it is logically inconsistent. Michael Woolcock has argued that to avoid tautological reasoning, any definition of social capital should focus on its sources rather than its consequences, or "what it is, not what it does." In other words, if social capital is defined as a contributor to an outcome, it would be tautological to claim that it contributes to that outcome. Studies that relate single components of social capital to the outcome under investigation are not affected by that objection, but it raises doubts about the use of combinations of components, members of which are included because of their expected contributions to that outcome. There have also been objections to the aggregation of organizational and cognitive components where the two categories are inter-related (since trust is promoted by law enforcement, a weighted sum those two components is difficult to interpret). Also, Portes and Landolt have questioned the assumption that a community’s social capital is the sum of that of its members , as well as the assumption that its outcomes are necessarily beneficial to the community - recalling Mancur Olson’s   suggestion  that the principle motive for the formation of an association is rent-seeking - in other words, an attempt by a group to gain an advantage at the expense of the community. (The assumption that social  capital  necessarily benefits even those groups that acquire it  is contrary to  the evidence of  the “Robbers Cave Experiments”, which  demonstrated that  close-knit groups tend to acquire dangerously mistaken perceptions concerning their  members and  others   .)  James de Fillipis has described Robert Putnam’s methodology as "fundamentally flawed"  and has argued for a return to the interpretation of the concept by Pierre Bourdieu as being essentially about the power to attract and control physical capital