Gneezy, U., Haruvy, E., &Yafe, H. (2004). The inefficiency of splitting the bill. The Economic Journal, 114(495), 265-280.

When agents are ascribed selfish motives, economic theory points to grave inefficiencies resulting from externalities. We study a restaurant setting in which groups of diners are faced with different ways of paying the bill. The two main manipulations are splitting the bill between the diners and having each pay individually. We find that subjects consume more when the cost is split, resulting in a substantial loss of efficiency. Diners prefer the individual pay to the inefficient split‐bill method. When forced to play according to a less preferred set of rules, they minimise their individual losses by taking advantage of others.

 

 

Gneezy, U., Haruvy, E., &Yafe, H. (2004). The inefficiency of splitting the bill. The Economic Journal, 114(495), 265-280.

https://doi.org/10.1111/j.1468-0297.2004.00209.x 

 

Tversky, A., &Kahneman, D. (1974). Judgment under uncertainty: Heuristics and biases. science, 185(4157), 1124-1131.

This article described three heuristics that are employed in making judgements under uncertainty: (i) representativeness, which is usually employed when people are asked to judge the probability that an object or event A belongs to class or process B; (ii) availability of instances or scenarios, which is often employed when people are asked to assess the frequency of a class or the plausibility of a particular development; and (iii) adjustment from an anchor, which is usually employed in numerical prediction when a relevant value is available. These heuristics are highly economical and usually effective, but they lead to systematic and predictable errors. A better understanding of these heuristics and of the biases to which they lead could improve judgements and decisions in situations of uncertainty.

 

 

Tversky, A., &Kahneman, D. (1974). Judgment under uncertainty: Heuristics and biases. science, 185(4157), 1124-1131.

DOI: 10.1126/science.185.4157.1124

 

 

 

Levav, J., &McGraw, A. P. (2009). Emotional accounting: How feelings about money influence consumer choice. Journal of Marketing Research, 46(1), 66-80.

Mental accounting posits that people track their expenditures using cognitive categories or “mental accounts.” The authors propose that this cognitive process can be complemented by an approach that examines how feelings about a sum of money, or the money’s “affective tag,” influence its consumption. When people receive money under negative circumstances, this tag can include a negative affect component, which people aim to reduce by engaging in strategic consumption. The authors investigate two such strategies, laundering and hedonic avoidance, and demonstrate their effect on consumption of windfalls. The authors find that people avoid spending their negatively tagged money on hedonic expenditures and prefer to make utilitarian or virtuous expenditures to reduce, or “launder,” their negative feelings about the windfall. The authors call this tagging process and strategic consumption “emotional accounting.”

 

 

Levav, J., &McGraw, A. P. (2009). Emotional accounting: How feelings about money influence consumer choice. Journal of Marketing Research, 46(1), 66-80.

https://doi.org/10.1509/jmkr.46.1.66  

 

Cheema, A., &Soman, D. (2006). Malleable mental accounting: The effect of flexibility on the justification of attractive spending and consumption decisions.

Mental accounts are often characterized as self‐control devices that consumers employ to prevent excess spending and consumption. However, under certain conditions of ambiguity, the mental accounting process is malleable; that is, consumers have flexibility in assigning expenses to different mental accounts. We demonstrate how consumers flexibly classify expenses, or construct accounts, to justify spending. An expense that can be assigned to more than one account (i.e., an ambiguous expense) is more likely to be incurred than an unambiguous expense that is constrained either by existing budgets or by previously constructed accounts. We explore the justification processes that underlie these results and their implications for mental accounts as self‐control devices.

 

 

Cheema, A., &Soman, D. (2006). Malleable mental accounting: The effect of flexibility on the justification of attractive spending and consumption decisions. Journal of Consumer Psychology, 16(1), 33-44.

https://doi.org/10.1207/s15327663jcp1601_6

 

 

Shafir, E., &Thaler, R. H. (2006). Invest now, drink later, spend never: On the mental accounting of delayed consumption. Journal of economic psychology, 27(5), 694-712.

Monetary transactions in which consumption is temporally separated from purchase naturally lend themselves to multiple frames and to alternative accounting schemes, which nonetheless maintain a modicum of discipline and authenticity. We investigate some of the relevant accounting rules, and find that advanced purchases (e.g., a case of wine) are typically treated as “investments” rather than spending. At the same time, consumption of a good purchased earlier and used as planned (a wine bottle opened for dinner) is often coded as “free”, or even as savings. However, when it is not consumed as planned (a bottle is dropped and broken), then the relevant account, long dormant, is resuscitated and costs associated with the event are perceived as the cost of replacing the good, especially if replacement is actually likely. Related phenomena and assorted implications are discussed.

 

 

Shafir, E., &Thaler, R. H. (2006). Invest now, drink later, spend never: On the mental accounting of delayed consumption. Journal of economic psychology, 27(5), 694-712.

https://doi.org/10.1016/j.joep.2006.05.008 

 

Prelec, D., &Loewenstein, G. (1998). The red and the black: Mental accounting of savings and debt. Marketing science, 17(1), 4-28.

In the standard economic account of consumer behavior the cost of a purchase takes the form of a reduction in future utility when expenditures that otherwise could have been made are forgone. The reality of consumer hedonics is different. When people make purchases, they often experience an immediate pain of paying, which can undermine the pleasure derived from consumption. The ticking of the taxi meter, for example, reduces one’s pleasure from the ride. We propose a “double-entry” mental accounting theory that describes the nature of these reciprocal interactions between the pleasure of consumption and the pain of paying and draws out their implications for consumer behavior and hedonics. A central assumption of the model, which we call prospective accounting, is that consumption that has already been paid for can be enjoyed as if it were free and that the pain associated with payments made prior to consumption (but not after) is buffered by thoughts of the benefits that the payments will finance. Another important concept is coupling, which refers to the degree to which consumption calls to mind thoughts of payment, and vice versa. Some financing methods, such as credit cards, tend to weaken coupling, whereas others, such as cash payment, produce tight coupling.

 

Our model makes a variety of predictions that are at variance with economic formulations. Contrary to the standard prediction that people will finance purchases to minimize the present value of payments, our model predicts strong debt aversion—that they should prefer to prepay for consumption or to get paid for work after it is performed. Such pay-before sequences confer hedonic benefits because consumption can be enjoyed without thinking about the need to pay for it in the future. Likewise, when paying beforehand, the pain of paying is mitigated by thoughts of future consumption benefits. Contrary to the economic prediction that consumers should prefer to pay, at the margin, for what they consume, our model predicts that consumers will find it less painful to pay for, and hence will prefer, flat-rate pricing schemes such as unlimited Internet access at a fixed monthly price, even if it involves paying more for the same usage. Other predictions concern spending patterns with cash, charge, or credit cards, and preferences for the earmarking of purchases.

 

We test these predictions in a series of surveys and in a conjoint-like analysis that pitted our double-entry mental accounting model against a standard discounting formulation and another benchmark that did not incorporate hedonic interactions between consumption and payments. Our model provides a better fit of the data for 60% of the subjects; the discounting formulation provides a better fit for only 29% of the subjects (even when allowing for positive and negative discount rates).

 

The pain of paying, we argue, plays an important role in consumer self-regulation, but is hedonically costly. From a hedonic perspective the ideal situation is one in which payments are tightly coupled to consumption (so that paying evokes thoughts about the benefits being financed) but consumption is decoupled from payments (so that consumption does not evoke thoughts about payment). From an efficiency perspective, however, it is important for consumers to be aware of what they are paying for consumption. This creates a tension between hedonic efficiency and what we call decision efficiency. Various institutional arrangements, such as financing of public parks through taxes or usage fees, play into this tradeoff. A producer developing a pricing structure for their product or service should be aware of these two conflicting objectives, and should try to devise a structure that reconciles them.

 

 

Prelec, D., &Loewenstein, G. (1998). The red and the black: Mental accounting of savings and debt. Marketing science, 17(1), 4-28.

https://doi.org/10.1287/mksc.17.1.4

 

 

Soman, D., et al. (2005). The psychology of intertemporal discounting: Why are distant events valued differently from proximal ones?.

Research in intertemporal choice has been done in a variety of contexts, yet there is a remarkable consensus that future outcomes are discounted (or undervalued) relative to immediate outcomes. In this paper, we (a) review some of the key findings in the literature, (b) critically examine and articulate implicit assumptions, (c) distinguish between intertemporal effects arising due to time preference versus those due to changes in utility as a function of time, and (d) identify issues and questions that we believe serve as avenues for future research.

 

 

Soman, D., Ainslie, G., Frederick, S., Li, X., Lynch, J., Moreau, P., … &Wertenbroch, K. (2005). The psychology of intertemporal discounting: Why are distant events valued differently from proximal ones?. Marketing Letters, 16(3-4), 347-360.

https://doi.org/10.1007/s11002-005-5897-x

 

Tyran, J. R., &Engelmann, D. (2005). To buy or not to buy? An experimental study of consumer boycotts in retail markets. Economica, 72(285), 1-16.

We investigate experimentally how firms and consumers react to a sudden cost increase in a competitive retail market. We compare two conditions that exclusively differ with respect to how difficult it is to organize and enforce boycotts. We find that cost increases translate into sudden price increases, and that consumer boycotts are frequent in response. However, consumer boycotts are unsuccessful in holding down market prices even if collective action problems are completely eliminated. While consumer boycotts do not increase consumer rent, they reduce market efficiency. Consumer boycotts apparently serve to punish firms for seemingly unfair price increases.

 

 

Tyran, J. R., &Engelmann, D. (2005). To buy or not to buy? An experimental study of consumer boycotts in retail markets. Economica, 72(285), 1-16.

https://doi.org/10.1111/j.0013-0427.2005.00399.x

 

 

Fehr, E., &Goette, L. (2005). Robustness and real consequences of nominal wage rigidity. Journal of Monetary Economics, 52(4), 779-804.

Nominal wage rigidity has been shown to exist in periods of high inflation, while reduction in nominal pay has been hypothesized to occur in times of low inflation. Nominal wage rigidity would therefore become irrelevant because there is little need to cut nominal pay under high inflation, while the necessary cuts would occur under low inflation. We test this hypothesis by examining Swiss data in the 1990s, where wage inflation was low. Nominal wage rigidity proves robust in a low inflation environment, constituting a considerable obstacle to real wage adjustments. Real wages would indeed respond to unemployment without downward nominal rigidity. Moreover, wage sweep-ups caused by nominal rigidity correlate strongly to unemployment, suggesting downward nominal wage rigidity fuels unemployment.




Fehr, E., &Goette, L. (2005). Robustness and real consequences of nominal wage rigidity. Journal of Monetary Economics, 52(4), 779-804.

https://doi.org/10.1016/j.jmoneco.2005.03.006 

 

Goldstein, D. G., Hershfield, H. E., &Benartzi, S. (2016). The illusion of wealth and its reversal. Journal of Marketing Research, 53(5), 804-813.

Research on choice architecture is shaping policy around the world, touching on areas ranging from retirement economics to environmental issues. Recently, researchers and policy makers have begun paying more attention not just to choice architecture but also to information architecture, or the format in which information is presented to people. In this article, the authors investigate information architecture as it applies to consumption in retirement. Specifically, in three experiments, they examine how people react to lump sums versus equivalent streams of monthly income. Their primary question of interest is whether people exhibit more or less sensitivity to changes in retirement wealth expressed as lump sums (e.g., $100,000) or monthly equivalents (e.g., $500 per month for life). They also test whether people exhibit an “illusion of wealth,” by which lump sums seem more adequate than monthly amounts in certain conditions, as well as the opposite effect, in which lump sums seem less adequate. They conclude by discussing how format-dependent perceptions of wealth can affect policy and consumers’ financial decision making.

 

 

Goldstein, D. G., Hershfield, H. E., &Benartzi, S. (2016). The illusion of wealth and its reversal. Journal of Marketing Research, 53(5), 804-813.

https://doi.org/10.1509/jmr.14.0652