Friday, September 25, 2020

Good Economics for Hard Times by Esther Duflo and Abhijit Banerjee

 


Professors Banerjee and Duflo published Good Economics for Hard Times in 2019, the same year they won the Economics Nobel.

The title sets the tone of the book. The authors begin by identifying some of the principal features of the ‘hard times’ facing the present-day world. These include growing economic inequality -- of both income and wealth -- increasing social polarization by race/ethnicity/religion leading to fractured societies, growing angst amongst the deprived and declining trust in state structures. To deal with these hard times the need of the hour is good economics free of ideology, preconceived notions and assumptions divorced from reality.

The authors have focused their attention on eight areas of concern for the modern world. They examine the issue of migration and its consequences, both real and imaginary (viz. politically created), look at the pains of free trade and the failure of theory based on unrealistic assumptions about the real world. They question the economists’ assumption of given and immutable human preferences and ask if the days of growth are over and what are growth’s determinants anyway? Global warming, technology, employment and inequality, the legitimacy of the state and the merits of cash disbursals and the importance, for welfare policy, of a regard for individual dignity are also examined in detail.

Banerjee and Duflo are serious iconoclasts, writing clearly and arguing cogently using a wealth of data from a wide range of studies by many researchers, to effectively question inadequate theoretical conclusions, false ‘facts’ and ‘common sense’ perceptions that do not make sense at all.

The proportion of international migrants in the world’s population has not changed between 1960 and 2017 and low skilled migrants have not caused a drop in employment or in wages anywhere! The poorest do not migrate overmuch; societies just like economies are ‘sticky’ for many reasons and large -scale migration stems largely from desperation created by sustained violence. And, on the other hand, Sergey Brin was born in Russia and Steve Jobs biological father was from Syria!

Trade theory claims, amongst other things, that free trade raises national income for all participants but assumes that resources are homogeneous and shift smoothly and seamlessly between occupations and geographical regions. This assumption is false. Labour is far from homogeneous  and both labour and capital are ‘sticky’ too. As a result, even if total national income increases from trade, there are losers and winners and the former need state assistance if overall welfare is a matter of concern. If the angst of the losers and its consequences for an otherwise well- to- do society like the US are to be mitigated, effective state intervention is a must.

It must be emphasized here that a blog post can only give, at best, a brief glimpse of some interesting things in a book of more than three hundred densely packed pages. The authors dive deep into each selected issue  and examine multiple dimensions in detail in every case. And to get at that, the book has to be read as it deserves to be, slowly and carefully.

Economists take peoples’ preferences as both given and immutable and proceed on their analysis therefrom. In a fascinating chapter, the authors examine the whole issue of human preferences and individual and herd behaviour based on them, in the modern context of the Internet, social media and the ‘echo chambers’ created by these tech developments. A case study of Princeton students demonstrates, in very disturbing fashion, how deeply embedded racial stereotyping can be; how much self-doubt it can engender and the extent to which it can influence behaviour and performance.

Climate change, likely consequences and possible remedies, are discussed in detail. One important fact to remember is that 10% of the world’s population contributes 50% of CO2 emissions and 50% of the least polluting population contributes 10%.The authors also emphasize that the impact of global warming will be hardest on the poorest populations of the world and that, to avoid disaster, there may be no option other than a change in energy consumption habits along with rapid evolution of green technology.

Inequality of income and wealth -- causes, consequences and possible redressals -- are taken up for extensive discussion. The fact that free markets cannot handle all problems leads to the need for state intervention and an examination of the efficacy of the modern state. Those of us familiar with the ‘extractive’ and corrupt state may be jolted by the argument that if the markets cannot do something ,the state must intervene, even if the cost is higher than it should ideally be. It is also good to remember that corruption is as much a part of the private, market environment as it is endemic in the state structure.

A chapter on ‘Cash and Care’ highlights the need for universal unconditional cash transfers, along with more targeted efforts to deal with want, not just in the third world, but even in the USA. The implications of such a policy are analyzed, the problems -- financing and implementation -- discussed and the necessity of incorporating considerations of human dignity in notions of welfare, emphasized.

In conclusion, Professors Duflo and Banerjee reiterate the need for abandoning inadequate assumptions while formulating development policy. Bad ideas --distorted by ‘ideology, ignorance and inertia’-- can do enormous harm. Eternal vigilance appears to be the price of good policy and in the authors’ words ‘Without... vigilance, conversations about multifaceted problems turn into slogans and caricatures and policy analysis gets replaced by quack remedies.’

The book is not an easy read but a very rewarding one. It is educative, it makes one question, it makes one think.

Happy reading.

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