If I were to pick the field of economics I am most anxious to see adopt behaviorally realistic approaches, it would, alas, be the field where behavioral approaches have had the least impact so far: macro-economics.
(Richard Thaler, 2015, p. 349)
Economists, especially those who formulate public policy, often express dismay at the failure of the general public to understand economics. This is not a matter of ignorance as in the way non-specialists cannot say much about the workings of, say, the spleen. No one expects us to possess extensive knowledge about this fine organ. We are not exposed to any information about it nor do we engage in any conscious interaction with it. Just the reverse holds for economics. People do hold beliefs and entertain hunches about economics, but much of them are systematically misguided. This book will document lay beliefs about economics and try to expose their sources.
Why is this important? Because peopleâs economic views have practical consequences. Whereas what you think about your spleen doesnât affect it in any way, economic beliefs guide peopleâs behavior (think of inflation expectations) and figure in economic models. Further, the general publicâs beliefs also affect public policy, especially in democratic regimes. The authorities ignore the views of the public at their peril, and if the policy measures they put forward are misunderstood or disliked, they may be difficult or impossible to implement. It is therefore extremely important to map the publicâs understanding of economics, and to consider what it implies for public policy. A recent poll (IGM Forum, 2017) asked two panels of respected economists in the US and in Europe whether âInsights from psychology about individual behavior â examples of which include limited rationality, low self-control, or a taste for fairness â predict several important types of observed market outcomes that fully-rational economic models do not.â All the US experts and 88% of the European ones agreed that this is the case. George Stigler (1970, p. 61), who was awarded the Nobel Prize (inter alia) for highlighting the importance of information, turned his attention to economic knowledge:
Understanding by the public is of particular importance for Central Banks, who rely on transparency to convince the public that they will control inflation and are committed to their targets, and to that end routinely make all relevant information and considerations public. Ben Bernanke, then Chairman of the Federal Reserveâs Board of Governors, was well aware of this:
This is not just a matter of knowledge or ignorance: misunderstanding exerts its toll. Alan Blinder, an economist with major experience in both the Federal Reserve System and the US administration, discussed how the simplistic views of the general public raise difficulties for running delicate policies:
Psychology and economics have been fruitfully engaging for decades. Extensive work has taken place in Behavioral Economics, mostly concerning decision making by individuals. We will refrain from recapitulating the most important insights of behavioral economics, and refer the reader to existing surveys (Ariely & Jones, 2008; Camerer, Loewenstein, & Rabin, 2011; Kahneman, 2011). Countless studies document the type of mistakes people make, both errors of omission and of commission. These findings have inspired research into helping people avoid mistakes. Best known are the attempts to ânudgeâ individuals to take a recommended course of action without downright imposing it (Sunstein & Thaler, 2008; Thaler, 2015). The newfound insights are widely being used in the attempt to develop âbehavioral public finance.â This embryonic field holds promise to expand the set of available policy instruments by relying on realistic psychological foundations, but also opens up the possibility of evaluating welfare with respect to a psychologically realistic model of decision making and so provide a sounder foundation for public policy (Congdon, Kling, & Mullainathan, 2011; OECD, 2017). Richard Thaler, the 2017 Nobel Laureate who ranks amongst the most prominent behavioral economists, wishes macroeconomics too were psychologically informed, and laments this isnât taking place to any great extent.
Compared to that extensive body of work, strikingly little is known about how people think in the economics domain, as opposed to how they decide. This neglect of lay economic understanding is a serious lacuna. As humanity expands its environment, it becomes increasingly important to investigate how our existing cognitive and psychological endowment is deployed in understanding this broader environment.
Psychology traditionally wasnât interested in the question. Cognitive psychologists mostly concentrate on the processing of limited quantities of information, such as can be encompassed in very few sentences at most, whereas the study of how entire domains are comprehended is relatively undeveloped (Friedkin, Proskurnikov, Tempo, & Parsegov, 2016). There are research traditions, originating with the work of Carey (1985) and Keil (1989, 1992), who study the development of understanding in fundamental domains such as the natural (fire, liquids, weather), biological (health and disease, organisms), physical (material objects, forces), and psychological/interpersonal realms of life, all domains where cognitive preparedness developed to benefit our forebears (Pinker, 2003; Shtulman, 2015). But, as Pinker notes, economics as it developed over the last centuries never benefited from such preparedness, and perhaps for this reason, the psychology of economic understanding wasnât considered an interesting psychological question. Recently Boyer and Petersen (in press) upended this insight to great benefit. These authors take domain-specific systems identified by evolutionary psychology (such as cheater detection, ownership intuitions, or coalitional psychology) and that evolved to the benefit of our evolutionary ancestors to enable coordination between them, and then trace how those play out in our current environment, leading to biases in folk-economics. We take a complementary perspective, and relate misunderstanding to the limited cognitive resources available to individuals who struggle to make sense of the modern economic environment. Much of this book involves relating the cognitive and psychological features of humans to characteristics of economic thinking, in an attempt to account for how ordinary people cope with it.
And the fact is, they cope very poorly. Economists, frustrated by the failure of the public to grasp what they see as obvious economic realities, sometimes try to speak to the public and to explain what they are doing and why, only to be met with incomprehension or suspicion.
They typically do not realize the magnitude of the obstacle. Blinder also remarked: âI think the economists, with some exceptions, donât help a lot in that they spend precious little time talking â and I guess that means through the media â to ordinary people in ways that ordinary people can understandâ (Blinder, interviewed in Erickson, 1994). Apparently, he believed that if only economists were to take the trouble to explain matters to the public, things would go much more smoothly. That naĂŻve hope was shared by Valery Giscard dâEstaing. On February 10, 1972, while Franceâs Finance Minister, he invited himself onto a talk show1 because, as he put it: âI am responsible for the French tax system. I would like everyone to understand our tax system, and to a certain extent, approve it.â Whereupon he stepped up to a flip board and explained the arcane principles of the now defunct âlâavoir fiscalâ concept (tax credits linked to dividends paid to shareholders of French companies subject to corporate tax).2
A little fireside chat with the public will accomplish nothing, because members of the public understand economic matters very differently than economists do, and the mismatch is deeply rooted in our cognitive abilities. The coming chapters discuss this mismatch in detail, and show why numerous specific tensions arise.
But this covers only half our purpose. Failing to understand economic concepts and reasoning does not paralyze the public. On the contrary, a conspicuous feature of lay discourse about economics (the proverbial bloke in the pub) is that people speak confidently of policies and economic events. How can this be? Later chapters will discuss several means that enable them to be both confident and uninformed.
Economics is not a theoretical discipline that concerns academics only. There are social pressures on individuals to have economic views. Because the issues affect people so much, they are often debated in social settings, and everyone who is anyone should have a view. For the same reason, economic issues are frequently discussed in the media. News pieces on the current state of the economy, the consequences of policy changes or the goals pursued by those who formulate them, are routinely addressed to the general public, implicitly conveying to its members that they are expected to grasp them. Newscasts and the written press will discuss whether the present time is a good time to buy a house and why, the reasoning behind the latest decisions by the central bank governor and their likely consequences, or the economic significance of âBrexitâ (UK withdrawal from the European Union). This state of affairs is unlike that observed in other domains: news programs do not invite civil engineers to talk about the precise technical mishap that caused a bridge to collapse, as no one expects laypeople to be able to follow the explanation. But in the economic domain, the corresponding information is conveyed to the public. Here is a curtailed example at random, taken from the Orange County News, entitled âWhat a Fed rate increase could mean for youâ (www.nerdwallet.com/blog/finance/what-a-fed-rate-increase-could-mean-for-you/)