Showing posts with label behavioural economics. Show all posts
Showing posts with label behavioural economics. Show all posts

Thursday, October 23, 2014

Lecture on Intertemporal Choice

I am currently giving a set of lectures as part of a module "Behavioural Economics: Concepts and Theories" in Stirling. I am posting brief informal summaries of some of these lectures on the blog to generate discussion. Thanks to Mark Egan for a lot of help in putting these together online.

Decisions that deliver benefits and costs over different time periods are central to the study of economics and a key area of interaction between economics, psychology and policy. This lecture reviews the basic discounted utility model. It examines hyperbolic discounting and dual-process accounts of inter-temporal choice. The lecture reviews domain specific discounting, children's discounting, preferences for sequences, heuristics employed in judging future utility, evidence on the power of defaults. It then examines recent evidence on neurological mechanisms involved in time preferences. The lecture concludes with a discussion of the policy issues at stake, in particular the implications for regulation of financial markets.

Readings:

Frederick, S., Loewenstein, G. & O’Donoghue, T. (2002), "Time discounting and time preference: a critical review", Journal of Economic Literature, 40: 351-401

Elster, J. (1985). Ulysses and the Sirens: Studies in Rationality and Irrationality. Cambridge: Cambridge University Press.

Fehr, E. (2002), "The economics of impatience", Behavioural Science, 415: 269-272.

Textbooks:

1. Camerer, Loewenstein & Rabin (2004) Advances in Behavioral Economics

2. Frey & Stutzer (2007), Economics and Psychology: A Promising New Cross-Disciplinary Field

3. Loewenstein (2007), Exotic Preferences: Behavioral Economics and Human Motivation

4. Shafir (2013), The Behavioral Foundations of Public Policy

5. Angner (2012), A Course in Behavioural Economics

6. Wilkinson & Klaes (2012) An Introduction to Behavioural Economics

7. Varian (2008), Intermediate Microeconomics

Wednesday, March 06, 2013

Pollion - new smartphone data collection app

How can researchers and universities make better use of smartphones?

Programming dedicated apps for different research needs is costly both in the time and resources needed. It also requires deeper programming skills not always available to the average researcher.

Pollion, a new service for researchers, tries to answer this problem by providing a flexible data collection platform for different research needs. Pollion is able to collect deep behavioural data from respondents through short surveys and the smartphone's various sensors (e.g. GPS signal). This makes it possible to collect individuals' behaviour across geographic space for example.

Pollion can also be used for more elaborate designs using the day reconstruction method or simpler tasks such as getting instantaneous feedback from a study group (e.g. course evaluations).

Pollion will be launching across major smartphone operating systems soon. Get more information on the Pollion website.

Monday, June 18, 2012

New NBER Working Papers on Development and Behavioural Economics

The Behavioralist Goes to School: Leveraging Behavioral Economics to Improve Educational Performance
Steven D. Levitt, John A. List, Susanne Neckermann, Sally Sadoff

NBER Working Paper No. 18165
Issued in June 2012
NBER Program(s):   ED   PE

A long line of research on behavioral economics has established the importance of factors that are typically absent from the standard economic framework: reference dependent preferences, hyperbolic preferences, and the value placed on non-financial rewards. To date, these insights have had little impact on the way the educational system operates. Through a series of field experiments involving thousands of primary and secondary school students, we demonstrate the power of behavioral economics to influence educational performance. Several insights emerge. First, we find that incentives framed as losses have more robust effects than comparable incentives framed as gains. Second, we find that non-financial incentives are considerably more cost-effective than financial incentives for younger students, but were not effective with older students. Finally, and perhaps most importantly, consistent with hyperbolic discounting, all motivating power of the incentives vanishes when rewards are handed out with a delay. Since the rewards to educational investment virtually always come with a delay, our results suggest that the current set of incentives may lead to underinvestment. For policymakers, our findings imply that in the absence of immediate incentives, many students put forth low effort on standardized tests, which may create biases in measures of student ability, teacher value added, school quality, and achievement gaps. 

http://www.nber.org/papers/w18165.pdf



The European Origins of Economic Development
William Easterly, Ross Levine

NBER Working Paper No. 18162
Issued in June 2012
NBER Program(s):   EFG   POL

A large literature suggests that European settlement outside of Europe shaped institutional, educational, technological, cultural, and economic outcomes. This literature has had a serious gap: no direct measure of colonial European settlement. In this paper, we (1) construct a new database on the European share of the population during the early stages of colonization and (2) examine its impact on the level of economic development today. We find a remarkably strong impact of colonial European settlement on development. According to one illustrative exercise, 47 percent of average global development levels today are attributable to Europeans. One of our most surprising findings is the positive effect of even a small minority European population during the colonial period on per capita income today, contradicting traditional and recent views. There is some evidence for an institutional channel, but our findings are most consistent with human capital playing a central role in the way that colonial European settlement affects development today.

http://www.nber.org/papers/w18162.pdf

Wednesday, May 09, 2012

Institute for Advanced Behavioural Studies

The Institute for Advanced Behavioural Studies' new website has just been launched. The mission of the institute is to act as a facilitator on behavioural research, bringing together partners such as Gallup, the OECD or the RAND Corporation. IFABS organises events on behavioural issues and also publishes a working paper series. Also check out the research news feed, which compiles new behavioural research from several online sources.

Wednesday, February 29, 2012

Gilles St. Paul The Tyranny of Utility

Will organise an online bookclub on this recent publication from Princeton University Press in the near future. Description below.


"The general assumption that social policy should be utilitarian--that society should be organized to yield the greatest level of welfare--leads inexorably to increased government interventions. Historically, however, the science of economics has advocated limits to these interventions for utilitarian reasons and because of the assumption that people know what is best for themselves. But more recently, behavioral economics has focused on biases and inconsistencies in individual behavior. Based on these developments, governments now prescribe the foods we eat, the apartments we rent, and the composition of our financial portfolios. The Tyranny of Utility takes on this rise of paternalism and its dangers for individual freedoms, and examines how developments in economics and the social sciences are leading to greater government intrusion in our private lives.
Gilles Saint-Paul posits that the utilitarian foundations of individual freedom promoted by traditional economics are fundamentally flawed. When combined with developments in social science that view the individual as incapable of making rational and responsible choices, utilitarianism seems to logically call for greater governmental intervention in our lives. Arguing that this cannot be defended on purely instrumental grounds, Saint-Paul calls for individual liberty to be restored as a central value in our society.
Exploring how behavioral economics is contributing to the excessive rise of paternalistic interventions, The Tyranny of Utility presents a controversial challenge to the prevailing currents in economic and political discourse.
Gilles Saint-Paul is professor of economics at the Toulouse School of Economics. His books includeInnovation and Inequality (Princeton)."

Tuesday, February 28, 2012

Monkeynomics

TED talk by Laurie Santos from a while back. This is really interesting. About seven minutes in, we see some clips of monkeys using money tokens to pay for food. It seems they also learn pretty well how to use them in a normal demand fashion but also make some similar reasoning mistakes.

Ipsos MORI: Public Opinion on Behaviour Change Policy

Ipsos MORI recently published a report detailing research carried out into the acceptability of governmental interventions, available here.

The poll assessed public perceptions of a hierarchy of policy interventions, from providing information to banning products outright. A majority of participants supported each of the interventions, though it did decrease as they became more severe. However, a substantial number of participants also felt that government should not get involved in individual choices. This 'cognitive polyphasia', a willingness to support specific interventions while also opposing governmental involvement, is seemingly contradictory. The authors suggest that it may point to a desire for government to tackle a particular issue while maintaining a level of suspicion about their involvement. It may also reflect a willingness to support legislation for the bad choices  of others, while maintaining a desire to retain your own freedom of choice.

There were differences in support for interventions between countries, with richer countries less likely to support the more severe interventions. In another seeming contradiction, within countries, richer respondents were more likely to endorse the more stringent interventions, perhaps because they do not feel themselves to be the targets of the policies.

Overall, the report suggests that public attitudes towards interventions like incentives, restrictions and bans is quite positive. Those who object to such measures may be in a passionate minority.

Friday, November 11, 2011

Michael Lewis Article on Kahneman

I had a quick read of Kahneman's new book and will read it more carefully over the weekend. Looks wonderful from first reading. Michael Lewis's article on Kahneman from Vanity Fair is linked here (thanks to Dave Madden for sending link).

Derren Brown: The Experiments

Tomorrow sees the conclusion of a recent series of Channel 4 programmes put together by the illusionist Derren Brown: The Eperiments. According to the Wikipedia entry, it is a series of "ambitious sociological experiments, in which the unwitting subject is a single person, a crowd, or even an entire town."
The first episode, entitled "The Assassin"... consists of Brown successfully hypnotising an unwitting member of the public to 'assassinate' a celebrity revealed to be Stephen Fry. This technique was used as a comparison to conspiracy theories regarding the assassination of Robert Kennedy by Sirhan Sirhan, who claims to have no memory of the event... In the second episode, "Remote Control"... Brown hosted a game show, asking a masked audience to vote for the escalating outcome of the fate of one contestant in an attempt to demonstrate the effect of deindividuation. The theory is that taking away individuality from someone turns them from themselves to just part of a crowd, and makes them act in a way that would sometimes go against their morals... In the third episode, "The Guilt Trip"... Brown attempted to find out if he could convince someone through association to admit to a crime they didn't commit. He worked through tricking a participant into distrusting their own memory and having excessive feelings of guilt, to the extent where he confessed to the murder of an actor whom he had interacted with and was later told had been murdered... In the fourth episode, "The Secret of Luck"... (due to air tomorrow)... Brown spreads a rumour of a lucky dog statue throughout an entire town and documents the consequences.
These experiments should be of interest to behavioural economists in the context of the Nudge theory (and the impact of Nudge on public policy; especially Thaler and Sunstein's discussion of libertarian paternalism). In particular, Brown's "Gameshow" experiment is evocative of the Stanford Prisoner Experiment. Brown's experiments can be investiagted further on YouTube or 4OD. Below is a trailer for the "Gameshow" episode.

Tuesday, November 08, 2011

American Academy of Arts and Sciences to Honour Daniel Kahneman

"The American Academy of Arts and Sciences will present its Talcott Parsons Prize to Daniel Kahneman, whom some have called the world’s most influential living psychologist. The prize, which will be given to Kahneman on November 9, 2011 (tomorrow) is awarded for outstanding contributions to the social sciences... With his friend and colleague, the late Amos Tversky, Kahneman conducted pioneering work that laid the foundation for the field of behavioral economics... at the Talcott Parsons award ceremony, Kahneman will address Two Systems in the Mind."
The above is from the Cambridge Chronicle. Here is a Wikipedia entry on dual process theory (which Kahneman will discuss at the award ceremony tomorrow). And here is a recent post by Liam about a Kahneman masterclass on intuitive thinking. Kahneman is the first psychologist to win the Talcott Parsons Prize. The award (made every 5-6 years) has gone to an economist only once: the development and political economy scholar, Albert Hirschman, in 1983.

Sunday, November 06, 2011

Nudge nudge, Thaler Thaler: program on radio 4

Nudgers amongst you might be interested in a recent special program from the excellent BBC Radio 4 series All in the Mind that looks at the concept and in particular the role of the UK government’s Behavioural Insight Team. It is here. It includes contributions from Richard Thaler who has helped create the field.
I found the program a bit uncritical and it’s hard to know whether Nudge is going to live up to the hype but its worth a try I suppose.

Thursday, November 03, 2011

Costs of Irrationality: Procrastination

I recently read Fischer's (JEBO, 2001) paper 'Read this paper later: procrastination with time-consistent preferences.'

It builds a standard model of optimising the work-rate in completing a fixed task (e.g. writing a paper by a deadline), where the real question is about procrastination. The punchline is that if agents discount the future, then it is optimal to trade future utility for utility now, i.e. procrastinate.

Specifically the optimal work path will start at or near zero, and continuously rise at the discount rate. The endpoint condition is that agents are working flat out towards the end and complete the last sentence just at the deadline. This is the same kind of result as Hotelling (JPE, 1931) albeit in a different setting.

Theoretically this is all fine but does it match reality: what sort of discount rate is applicable over the three weeks you have to write an essay? Some may argue that the levels of time discounting needed to match this theory to data are too extreme to be plausible. Essentially, this is true. In this model, even minor tradeoffs in marginal utility (1% per day) would require an annualised discount rate of 3,783%. This is somewhat larger than the 5% discount rate that is standard in the literature.

I do not think people behave optimally, but I do think it is a benchmark we should aim for. Teachers may wish to mention to students that the only way to justify procrastination as optimal is with a discount rate in excess of 3,500%. Increasing the salience of the costs of procrastination may just spur them into action.

(Aside: teachers should probably consider this when it comes to grading those papers, too.)

Thursday, October 20, 2011

Behavioural Notes from Kenmare

The notes from my talk on behavioural economics in Kenmare are available on this link.

Abstract:
The last 10 years has seen a dramatic increase in the policy interest surrounding behavioural economics. The appointment of Cass Sunstein to a chief regulatory post in the US, the influence of Richard Thaler on the policy platforms of both Obama and Cameron, the establishment of the UK Cabinet Office Behavioural Insights Team and a number of high-level conferences held by DG Sanco, all signal a growing interest in this field. This paper examines the potential implications of this literature for Irish public policy. In 2014, Ireland aims to move toward a national autoenrolment system for pensions, a move arising from the behavioural literature. Soft paternalist policies in areas such as health insurance, energy policy, education, innovation, consumer policy and so on, potentially offer a new approach to key policy questions. This approach has promise and benefits from detailed experimental results arising from other jurisdictions but it is extremely important to understand the foundations of behavioural approaches to policy and the principles guiding good design and evaluation.

Monday, October 10, 2011

Unrealistic Optimism

People tend to accept good news much more than bad according to this paper by Sharot, Korn and Dolan. I suppose these kinds of asymmetries stand at the heart of behavioural economics.

Monday, September 26, 2011

Behavioural Insights Team Update

The Behavioural Insights Team within the UK Cabinet office has been working on the application of a number of literatures surrounding behavioural, including behavioural economics, to policy (brief summary from a previous post here). Their annual update, released recently, is available on this link. The report outlines policies they have been involved with in the areas of organ donation, healthy food consumption, consumer empowerment, tax and environment. There has been an ongoing debate in the UK about the rationale behind the approach including the recently released House of Lords report. Interestingly the Behavioural Insights team report gives a lengthy nod to Ben Goldacre's suggestion that they be sacked and replaced with a policy trials unit devoted to randomised control trials on unresolved policy questions. In essence, as they note, a fully worked out behavioural policy would have trial like this embedded into policy.

Sunday, September 18, 2011

Behavioural Characteristics and Financial Distress

Behavioural characteristics and financial distress
Yvonne McCarthy
Using a new nationally representative survey of financial capability and experience in the UK and Ireland, I investigate the key factors that cause individuals to experience financial distress. In this context, a key area that I focus on is whether individuals? behavioural traits, such as their capacities for self-control, planning, and patience, affect their ability to stay out of financial trouble. I find that the variables that proxy for these behavioural characteristics are both statistically significant and economically important for predicting both mild and extreme forms of financial distress, in a regression controlling for demographic and socio-economic factors. Furthermore, behavioural traits emerge as having a stronger impact on the incidence of financial distress than education or financial literacy. The results raise questions about whether policy can be oriented towards improving financial habits and mitigati ng the impact of behavioural characteristics on personal finances.

Ireland's National Pension Auto-enrolment Policy

One area that I want to use this blog to keep a discussion going on is the very important change in the pension system that will take place, according to the current plan in 2014. Below is an article from a recent Business and Finance edition, where we outline the basic issues at stake - full link here


Pensions: Making pension plans the default option

Studies have found that making the choice to enrol in a pension the default one for workers has a dramatic upward effect on participation. Can it work here? Liam Delaney, Colm Harmon and Keith O’Hara report.

Economics has long grappled with the question of why people do, or do not participate in pension plans. For most of the 20th century, economists viewed this problem through a model known as the life-cycle hypothesis, which suggests that people, using available information, rationally forecast their future income, then save and invest in a way such that their consumption will be smooth over their lifetime. A popular vehicle for this consumption-smoothing saving is participation in a pension plan, usually set up early in an employee’s career.
Work in behavioural economics, a field that combines economics and psychology, has been questioning this account. Contrary to life-cycle theory predictions, consumption seems to fall too much after retirement; people, in general, seem unaware of their options; and most importantly, many of us appear simply too lazy and prone to procrastination to achieve an optimal consumption-saving trade-off.
A seminal paper by two U.S.-based researchers, Brigitte Madrian and Dennis Shea, investigated what happened when employees were “autoenrolled” into pension plans, but were also given the choice to opt out. The results are quite striking. Despite no difference in the financial aspects of the plans, such as employer contributions, autoenrolling employees had dramatic effects on employee participation. Among groups who traditionally did not take out pensions (women, low-income groups, and ethnic minorities) the results were particularly pronounced; a near-quadrupling of enrolment numbers over self-selected entry for some cohorts.
This research has been followed-up by numerous other papers and the auto-enrolment feature seems a robust way of increasing participation in company contexts. In general, the active setting of default options is being debated across a wide range of policy areas. The question is whether such altering of default options can be a solution to low pension participation across whole populations.
In the next couple of years, based on this research, both the British and Irish governments will embark on ambitious programmes of changing the pension default options among private sector workers. In Ireland, as part of the 2010 national pensions framework, all private sector employees not currently covered by an employer-sponsored pension plan will be autoenrolled into a defined-contribution plan. Employees will contribute 4 per cent of income within defined income bands, the employer will contribute 2 per cent on a mandatory basis and the government will contribute a 2 per cent tax break.
The programme will begin in 2014, with the contributions being collected through the PRSI system.
There is a lot to be welcomed about this policy. Successive attempts at increasing pension participation throughout the Celtic Tiger period largely failed. Programmes, for the most part, targeted awareness and generally tried very soft tactics to address what is a more ingrained behavioural issue. Auto-enrolment has a strong evidence base and can, in the right conditions, change behaviour in a way that will ultimately benefit employees without coercing them or removing freedom of choice.
However, there are a number of issues that need to be thought through before implementation. Firstly, this is a forceful policy. In Ireland, employees who opt out will be re-enrolled after two years.  In essence, this makes the policy more of a shove than a nudge, and sets a precedent that government policy in this direction will be on the hard side.
Secondly, it is fully mandatory for employers to participate. There are obvious political reasons why the government would do this, but the necessity of employer contributions is not obvious at a time of tough labour market conditions. The potential knock-on effects to wages and to hiring should be given more thought, including any additional administrative burden placed on small employers arising from auto-enrolment.
A further issue is the potential that this scheme will target those who are already saving or would have saved anyway. The evidence is not yet conclusive from New Zealand, but early papers on the similar KiwiSaver initiative make it seem likely that a large degree of substitution took place from other savings sources rather than an actual increase in net savings.
Still more serious is the possibility that the 4 per cent contribution rates set by the government will be seen as tacit advice by the people being enrolled. 4 per cent is a small savings rate, even with the employer and government contributions. Recent evidence suggests that a whole cohort of employees enrolled at low-levels may rigidly stick to them, despite the fact that they would have contributed more had they been left alone. The Government should give serious consideration to enrolling at higher contribution rates and giving the option to reduce contributions, as well as devising mechanisms to encourage scaling up, particularly via pre-commitments from future pay increases, something that hopefully will be a feature of a post-2014 Irish economy.
When the mechanism is designed, the issue of how the funds will be presented to participants and, in particular, the allocation of the default fund will be the most pressing issue to decide. Evidence from Sweden suggests that employees, given more choice tend to diversify less and move, in particular, into domestic equities, achieving lower returns than if simply assigned a default well-diversified portfolio.
This is a major national experiment with implications for many other aspects of policy. There is much evidence that, conducted correctly, this policy can fix a major problem facing us in years ahead. But there are also many pitfalls and it is important that the roll-out be accompanied by a seriously conducted pilot-phase.
Liam Delaney is a research fellow at the Geary Institute and Professor of Economics at Stirling University. Colm Harmon is Professor of Economics and Director of Geary Institute. Keith O’Hara is a researcher at the Geary Institute.

Friday, April 01, 2011

Unanticipated Interpersonal and Societal Consequences of Choice

Thanks to Clare for pointing me to this paper forthcoming in Psychological Science by Savani, Stevens and Markus. Abstract below.

Abstract
Choice makes North Americans feel more in control, free, and independent, and thus has many positive consequences for individuals’ motivation and well-being. We report five studies that uncover novel consequences of choice for public policy and
interpersonal judgments. Studies 1-3 found that activating the concept of choice decreases support for policies promoting intergroup equality (e.g., affirmative action) and societal benefits (e.g., reducing environmental pollution), but increases support for policies promoting individual rights (e.g., legalizing drugs). Studies 4 and 5 found that activating the concept of choice increases victim-blaming and decreases empathy for disadvantaged others. Study 5 found that choice does not decrease Indians’ empathy for disadvantaged individuals, indicating that these effects of choice are culture specific. This research suggest that the well-known positive consequences of choice for individuals can be accompanied by an array of previously unexamined and potentially negative consequences for others and for society.

Wednesday, March 30, 2011

Shane O'Mara: Psychology and the Crash

TCD Neuroscience Professor, Shane O'Mara, sketches a number of potential cognitive biases that might have underlay the Irish economic crash in this article (from http://www.irishscience.wordpress.com). Testing the extent to which particular psychological mechanisms can cause macroeconomic fluctuations is a tricky excercise but the article provides much food for thought in terms of potential mechanisms.

Tuesday, March 29, 2011

DG Sanco and Behavioural Economics

The European Health and Consumer Directorate, in particular its consumer division, has been taking an active interest in behavioural economics, as reflected in two large conferences it has held on this area in the last couple of years (link here and here). A recent paper by Emmanuele Ciriole, economist with the division, is available here. A recent report commissioned by Sanco on retail investment services is available here