Microeconomics

The largely unexpected arrival of the global economic crisis and the largely unpredicted slowness of the recovery from the Great Recession should be precipitating an intellectual crisis across economics and policy making. We require additional theories and additional methods to detect how an economy is evolving and to provide the basis for policy intervention (Haldane, 2014).

The central concepts of Keynes’ macroeconomic theories concerning the behavior of labor markets, aggregate demand, and asset pricing can be formulated as special cases of a general social interaction model.

Caring Economics is about a new way of thinking about human prosperity. In mainstream economics, prosperity is a matter of consumption, income and wealth. By contrast, Caring Economics conceives of prosperity in terms of deeper sources of durable human wellbeing.

The Institute for New Economic Thinking held its sixth Annual Conference from April 8 to April 11, 2015, in collaboration with the Organization for Economic Cooperation and Development (OECD) in Paris.

Do large firm dynamics drive the business cycle? We answer this question by developing a quantitative theory of aggregate fluctuations caused by firm-level disturbances alone. We show that a standard heterogeneous firm dynamics setup already contains in it a theory of the business cycle, without appealing to aggregate shocks.

This chapter surveys experimental research on networks in economics.

The interaction between social structure and markets remains a central theme in the social sciences. In some instances, markets can build on and enhance social networks’ economic role; in other contexts, markets appear to be in direct competition with social networks. The impact of markets on inequality and welfare is also varying: while markets can sometimes offer valuable outside options to marginalised individuals, in other situations only well connected and better off individuals can benefit from them.

Individuals derive benefits from their connections, but these may, at the same time, transmit external threats. Individuals therefore invest in security to protect themselves. However, the incentives to invest in security depend on their network exposures. We study the problem of designing a network that provides the right individual incentives.

Do economists live in a world of their own?

It is instructive to view the study of networks in economics as a shift in paradigm, in the sense of Kuhn (1962). This perspective helps us locate the innovation that networks bring to economics, appreciate different strands of the research, assess the current state of the subject and identify the challenges.

The ongoing explosion of the incomes of the richest households and the erosion of middle-class employment opportunities for most of the rest have become integrally related in the now-normal operation of the U.S. economy.

The tension between efficiency and equilibrium is a central feature of economic systems. In many contexts, social networks mediate this trade-off: an individual’s network position determines equilibrium play, and social relations allow coordination on an efficient norm.