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No Free Lunches But Plenty Of Cheap Ones

Lawrence H. Summers 18th February 2016

Larry Summers

Larry Summers

Trade-offs have long been at the center of economics. The aphorism “there is no such thing as a free lunch” captures a central economic idea: You cannot get something for nothing. Among the many trade-offs emphasized in economics courses are guns vs. butter, public vs. private, efficiency vs. equity, environmental protection vs. economic growth, consumption vs. investment, inflation vs. unemployment, quality vs. quantity or cost and short-term vs. long-term performance.

Just as families with limited incomes have to make decisions about what they will and will not buy, societies face trade-offs. Economists are right when they emphasize the need to choose between competing objectives in designing policies.

Trade-off economics helps explain political gridlock. If all change produces winners and losers, and if democratic safeguards mean that veto power is promiscuously distributed, it is hardly surprising that relatively little change takes place.

Yet I am increasingly convinced that “no free lunch” oversimplifies matters and makes economics too dismal a science. It would be true in a world where all opportunities to make things better had been fully exploited — where, to use another cliché, there were no $100 bills lying on the street. But recent experience suggests that by improving incentives or making strategic investments, we can achieve apparently conflicting objectives to a greater extent than conventional wisdom would suggest.

Take U.S. health care. The traditional view was that policymakers had to weigh major trade-offs between cost, quantity and quality. The argument was that measures to reduce cost would also reduce quality of care, as hospitals and doctors denied expensive treatments to patients, were starved of resources and were spread thinner as demand for care rose.


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Experience since 2010, when Obamacare was passed, shows how wrong the traditional view is. Coverage has been substantially expanded. Yet costs, which grew far more rapidly than gross domestic product for a half-century, have now moved into line with GDP growth, resulting in large savings to Medicare and private health insurance. No one fully understands why the health-care cost curve has bent, but most experts believe new approaches to reimbursement that reward success and penalize failure have played an important role. Such measures have, for example, led to dramatic reductions in the share of hospital patients who are readmitted soon after discharge.

Likewise, hospice-type approaches to end-of-life care, where the focus was shifted from cure to patient comfort, were expected to improve the patient experience and reduce costs by eliminating costly, unproductive interventions. There is now substantial evidence that they extend life expectancy as well. The moral of the story is not that there is never a trade-off between cost and quality. Rather, it is that innovations can greatly improve the terms of the trade by reducing costs and increasing quality.

A quite different example involves the alleged trade-off between equity and efficiency — specifically, the concern that redistribution hurts economic performance and stymies growth. It is true that tax increases produce at least some adverse incentives and that providing income-based government benefits involves implicit taxes. But matters are much more complex than a simple trade-off. Antitrust laws that attack rent-seeking promote both equity and efficiency, as do measures that increase educational opportunity. The rational strengthening of financial regulation reduces the incidence of financial crises, thus improving economic performance while promoting fairness by helping consumers. In demand-short economies, the greater equity achieved through more progressive taxation means more spending and fuller employment of resources. These examples do not deny trade-offs between equity and efficiency. They do, however, suggest that there is nothing ineluctable about them. Both can be enhanced through proper policy.

The idea that it is possible to achieve apparently conflicting objectives is not confined to public policy. Henry Ford, with his famous $5 workday, both made his workers better off and raised his profits. Ford’s example has been followed by Aetna , Walmart and others in recent months. Many companies report that an increased commitment to social responsibility makes them more profitable by increasing their attractiveness to workers and customers. Others have found that investments in energy efficiency are among the most profitable they can make. More generally, successful entrepreneurs provide a new, previously unavailable benefit to consumers, create opportunities for workers and earn profits for themselves.

Trade-offs should be seen not as constraints but challenges. There are plenty of very cheap lunches out there for those with the will to find them. Economics has much to contribute and much to gain from this search as well. It can become a cheerful science.

This column was first published on Larry Summers’ Blog

Lawrence H. Summers

Lawrence H. Summers is Professor of Economics at Harvard University and a former US Secretary of the Treasury.

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