Consumers drive competition Vigorous competition Competitive economy Productivity economic gains Innovation, price competition Active Consumers Active Economy Don’t worry too much
Market Failure
Transaction costs
Agency problems
Informational asymmetry
Government intervention may be appropriate Information
Don’t worry too much
Examining actual consumer outcomes: Empirical data
Deregulating Electricity Markets
Conclusions
decision complexity rather than conventional theories of rational decision making
Better consumer pricing information was needed – too hard to compare
Reducing choice may sometimes increase benefit
Behavioural Economics
What is it?
Branch of both Economics and Psychology
Different assumptions – suspends the assumption of perfect rationality
Assumptions are based on empirical evidence or experimental evidence rather than a normative theory
Behavioural assumptions of microeconomics (conventional) Microeconomics rests on a set of assumptions about preferences. Preferences are complete, transitive, (well-ordered) monotone and stable. Consumer behaviour in structurally sound, competitive markets, reveals their true choice – in aggregate at least. We infer what people want from what they choose. King Island Brie Grange Hermitage
What if? King Island Brie Grange Hermitage
What if? King Island Brie Grange Hermitage Preferences are discontinuous
What if? King Island Brie Grange Hermitage Preferences are not stable
What if? Q P Jane’s demand curve (addiction) Our behaviour does not reflect our preferences? Demand curve Jane would like to have
What if? We are concerned with equity and not just self-interest?
Assumption – rational behaviour at high levels of aggregation Rational mean Behaviour clustered around “rational” mean
BE questions this assumption Rational mean Behaviour clustered around some other point -- biased Observed behaviour While aggregate behaviour often conforms to assumptions of rationality, there are often systematic departures from rationality, and these are not necessarily in consumers’ best interests.
And behaviour can be fickle Rational mean Behaviour moves in response to minor stimuli Observed behaviour
Decision-making In general, our decisions are made on the basis of limited search (not even bounded rationality) We are guided by heuristics (quick rules of thumb), which generally serve us well, but which sometimes lead to costly biases – i.e. away from our “rational” self-interest.
Some heuristics and biases Endowment Overconfidence Framing Availability Pseudocertainty Anchoring Choice overload Myopia Self-control and discounting distortions Herding and beauty contests Shifting preferences Few “new” findings in behavioural economics – most are known to competent salespeople and experienced finance experts. Contribution of behavioural economics is to systematize knowledge.
Fairness Ultimatum game Proposer – to propose division of a resource Acceptor – to accept or reject division
Ultimatum game Proposer – proposes division Acceptor – accepts or rejects Both benefit Neither benefits Acceptor actually bases decision on perception of fairness. Limitation of Pareto assumptions – overridden by strong social norms concerning fair dealing
Fairness Evidence that people: engage in acts of generosity that cannot be expected to be requited incur costs to punish those whose behaviour they disapprove of Self-interest overridden by strong norms of fairness. Consumers are not indifferent to conditions of supply An intervention in a market must be seen to be fair Actions to preserve or improve fairness may be individually costly but collectively beneficial.
Choice and Information Overload Evidence that past a level, consumers default or choose not to choose (they choose whatever or walk away creating dead weight loss) Behavioural eco – optimum level of choice Range of choice Consumer benefit Conventional economics – more choice is better
Framing Our decisions are influenced by the frame: “ This account is subject to a 3 percent penalty if not paid within 30 days” OR “Payment within 30 days will attract a 3 percent discount” Contains 8% fat 92% fat free OR
Taking out a loan
Varying interest rates
– the lower the interest rate, the higher take up of the loan
One example vs four examples of different loan amounts and monthly payments
– one example creates more take up of loan than four examples
Smiling picture of woman, smiling picture of man
Context (framing) Matters
Contextual signals can matter significantly
For men – 4.5%
Oooh!! That smiling guy on the letter is offering me a loan! He looks just like Johnny Depp!
Powerful New Solutions?
Powerful New Tools? Use of Behavioural Defaults
Pennsylvania
Auto insurance
Option of limited right to sue
Lower premiums
Opt-out
Transaction costs = 0
75% ‘selected’ full right to sue
New Jersey
Auto insurance
Option of limited right to sue
Lower premiums
Opt-in
Transaction costs = signature
20% selected full right to sue
No Yes No Is the market sound? Are consumers enjoying the benefits of a competitive market? Decision Tree Demand-Side Market Analysis by Consumer Protection Regulators Is there information failure? Informational Instruments Are there behavioural biases affecting consumer decision-making and outcomes? Behavioural Instruments CHECKS TOOLS CONSUMER (Demand side) Other Instruments Are benefits of intervention likely to outweigh the costs of intervening to empower or protect Consumers? Are costs falling on vulnerable or disadvantaged groups? YES STRATEGIES for compensation or protection Yes NFA NFA = no further action No STRATEGIES for improving market for consumers Yes Yes
Types of Interventions
For the unsophisticated consumer:
defaults (using anchoring and endowment bias)
limited information, but in well-designed frames
debiasing (bias warnings)
For the undisciplined:
cooling off periods
optional binding contracts
For everyone:
Clever arrangements against consumers own weaknesses – careful design of decision contexts
The task of a joined up agency Consumer Protection Outcomes Competition Outcomes
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