The Unassuming Economist

From a new VOX post:

“Growth in life expectancy during the last two centuries has been attributed to environmental change, productivity growth, improved nutrition, and better hygiene, rather than to advances in medical care. This column traces the development of medical care and the extension of longevity in the US from 1800 forward to provide a long-term look at health and health care in the US. It demonstrates that the contribution of medical care to life-expectancy gains changed over time.”

“Researchers agree that there is a recent slowdown in national health expenditures across all age groups (Figure 4), but there is little agreement on exactly why and when it started. Cutler and Sahni (2013) considered the role of the recession and estimated that it accounted for 37% of the slowdown between 2007 and 2012. They noted that a decline in private insurance coverage and cuts to some Medicare payment rates accounted for another 8% of the slowdown, leaving 55% of the spending slowdown unexplained. Researchers who asked whether the Affordable Care Act could explain part of the slowdown reached mixed conclusions about the importance of its contribution (McWilliams et al. 2013, Song et al. 2012, Colla et al. 2012).

Whatever the case may be, the slowdown began in the early 2000s, prior to the implementation of the Affordable Care Act. Chandra et al. (2013) argued that the three main causes for the slowdown were the rise in high-deductible insurance plans, state-level efforts to control Medicaid costs, and a general slowdown in the diffusion of new technology, particularly for use by the Medicare population.

The diffusion of technologies previously used among the elderly to the non-elderly population (e.g. elective hip or knee replacement for people with severe arthritis) might explain some of the relative change but is not the full story. The recent reduction in the relative growth of medical spending on people over 65 and the slowdown in the real growth rate of spending for all citizens remain to be fully understood. ”

From a new VOX post:

“The sudden rise in trade between China and the US – known as the ‘China shock’ – has been the subject of numerous studies, but the even more dramatic increase in trade between China and developing countries in Asia has been somewhat overlooked. This column studies the impact of the China shock on income inequality in Vietnam. It suggests that increased trade with China reduced income inequality. It resulted in income growth for the lowest income quantiles while higher income groups saw their income decline.”

From Dani Rodrik’s weblog:

“We launched today a new initiative for academic economists that we hope will make the discipline of Economics more relevant to today’s pressing policy problems. The initiative consists of a network called Economics for Inclusive Prosperity (EfIP) with an initial set of 10 policy briefs. The briefs open with an introductory statement of our philosophy and go on to specific policy recommendations for finance, trade, labor markets, social policy, technology policy, and political institutions. The network is co-directed by Suresh Naidu, Gabriel Zucman, and me, and has 11 additional founding members. We hope to expand the group and we will add more policy briefs in the months ahead.

As we state in our introduction, we believe

mainstream economics – the kind of economics that is practiced in the leading academic centers of the country – is indispensable for generating useful policy ideas. Much of this work is already being done. In our daily grind as professional economists, we see a lot of policy ideas being discussed in seminar rooms, policy forums, and social media. There is considerable ferment in economics that is often not visible to outsiders. At the same time, the sociology of the profession – career incentives, norms, socialization patterns – often mitigates against adequate engagement with the world of policy, especially on the part of younger academic economists.

The problem is compounded by the lousy reputation Economics has acquired among proponents of an inclusive economy. Too often the discipline is viewed as the source of the policies that have produced the excesses and fragilities of our time. Mainstream economics and neoliberalism are viewed as one and the same.

We beg to differ:

Many of the dominant policy ideas of the last few decades are supported neither by sound economics nor by good evidence. Neoliberalism – or market fundamentalism, market fetishism, etc. — is a perversion of mainstream economics, rather than an application thereof. And contemporary economics research is rife with new ideas for creating a more inclusive society. But it is up to us economists to convince their audience about the merits of these claims.”

From a new IMF working paper by Shekhar Aiyar and Christian Ebeke:

“We posit that the relationship between income inequality and economic growth is mediated by the level of equality of opportunity, which we identify with intergenerational mobility. In economies characterized by intergenerational rigidities, an increase in income inequality has persistent effects—for example by hindering human capital accumulation—thereby retarding future growth disproportionately. We use several recently developed internationally comparable measures of intergenerational mobility to confirm that the negative impact of income inequality on growth is higher the lower is intergenerational mobility. Our results suggest that omitting intergenerational mobility leads to misspecification, shedding light on why the empirical literature on income inequality and growth has been so inconclusive.”

 

From a new VOXEU post:

“Figure 1 shows the evolution of various worker outcomes – the employment probability, the number of hours worked, and total earnings and transfers – around the time of STW treatment and compares workers who receive STW treatment (in blue) with two groups of similar workers who do not receive treatment. The workers in the grey square series are of particular interest – they are workers, similar to our treated group, but in firms who cannot access STW programmes, and who are laid-off. The figure shows that two years after STW treatment, there are no significant differences in the employment probability, earnings, and total income of workers who were treated by STW and workers who were laid-off. In other words, STW does not seem to provide any significant insurance to workers in the medium or long run.

How can we explain the very temporary nature of the impact of STW? The first answer lies in the selection of firms into these programmes. In the Italian context, firms that were at the bottom of the productivity distribution before the recession are three times more likely than higher-productivity firms to take up STW during the recession and employment effects for them are significantly smaller. These results are confirmed in the French context by Cahuc et al. (2018). This clearly suggests that STW predominantly targets firms that have permanently lower productivity and helps explain why keeping workers in these firms does not entail significant long-term benefits. More importantly, it suggests that, by preventing workers from moving from low- to high-productivity firms during recessions, STW may have significant negative reallocation effects in the labour market. Leveraging the rich spatial variation available in Italy across more than 600 local labour markets, we can estimate how an increase in the fraction of workers treated by STW in a local labour market affects employment outcomes of non-treated firms. Our results provide evidence of the presence of equilibrium effects of STW within labour markets. STW significantly decreases the employment growth and inflow rates of non-treated firms, and has a significant (although small) negative impact on TFP growth in the labour market.

Another reason that may explain the absence of long-term employment effects of STW in the Italian context is the nature of the Italian recession, which was long and protracted. It is likely that when a shock is more temporary, the effects of STW will be larger and will last longer, as the desire for labour hoarding is much greater for temporary shocks, especially when the cost of replacing or training workers is high.”