Executive Summary What can economics learn from social science? A lot; says Richard Layard in his Lionel Robbins Memorial Lectures from March 2003.

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Happiness: Has Social Science a Clue? – A Critical Review                                        

  1. Executive Summary

What can economics learn from social science?

A lot; says Richard Layard in his Lionel Robbins Memorial Lectures from March 2003.

By stressing the ability to habituate as well as the liability to rivalry as two main characteristics of human beings, the British economist formulates a deliberate and profound critique of the dominant thinking about public economics, which bases in particular on the theories of James Meade, Amartya Sen, Tony Atkinson as well as James Mirrlees.

In view of the remarkable finding that average happiness in Western societies has not increased in the last 50 years, despite huge increases in living standards, Layard concludes that income is a bad approximation for happiness, and economics alone is a hopeless insufficient instrument in the pursuit of happiness of a society.

Therefore, instead of focusing solely on economic concepts and variables, such as the GDP or income, he also builds his theoretical framework on new evidence from neuro-science. Since new evidence in neuro-science support Bentham’s perception of “happiness” as a single variable and prove its measurability, Layard identifies tremendous potential of social science as guidance for people concerned with policy, as it possibly allows them to rationally maximize the sum of human well-being. Layard claims that the two mechanisms “habituation” and “rivalry” in combination with our actual model characterized by a dominant economic mindset penetrating all spheres of life, leave us stuck in the “hedonic treadmill” and all our efforts to become richer are so largely self-defeating in terms of the overall happiness of the society. As we easily habituate to higher income levels, our idea of a sufficient income grows with our income. Since we fail to anticipate that mechanism, we will invest more time for work than is good for our happiness. Crux of the story lies in the fallacy of consumer sovereignty, also. Thinking of consumers and producers as different, as Layard puts it. Since people compare their income, but do not so with their leisure time, the actual model creates a distortion of our life towards work and away from other pursuits. People sacrifice leisure time both to increase consumption as well as to achieve rank. However, the total of rank is fixed and the race for it turns out to be a zero-sum game. Layard refers to empirical evidence showing that beyond the threshold of $15’000 per head p.a., people rather focus on the relative value of their income than on its absolute value. Economic growth per se can therefore not increase the happiness of an individual, except the individual relatively gains more than the members of its reference group. Relative gains in income make people happier, the happiness of those being worse off, however, decreases despite a higher income in absolute terms. The economist specifies this phenomenon by citing empirical evidence that a relative gain in income of one individual provokes a loss of happiness to everybody else of around 30% of that gain. Treating the triggered decrease of happiness as a kind of pollution, Layard suggests a simple instrument may overcome it: A simple corrective tax of 30 % on all additional earnings. In doing so, the “polluter” would be forced to pay for the disbenefit he causes. Just as taxation on smoking this additional income tax should also reduce the incentive for the “polluter” to work more and engage itself in the self-defeating race for income and rank.

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Different to the bulk of economists, Layard does not see any inefficient elements in taxation. By stressing the generally neglected impact of “habituation” and “rivalry”, he even acknowledges substantial levels of corrective taxation as an important component of any efficient economy. The only condition required that this assumption holds true is that the level of taxation is in line with the distortion provoked by these two mechanisms. The economist suggests 30% for each of them.

However, Layard’s approach - what he calls the Third Way - goes beyond economic measures. By developing his thoughts further, Layard widens the ...

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