The trouble with macroeconomics ….according to Paul Romer

Paul Romer offers a scathing critique of modern macroeconomics that has ‘has gone backwards’ in the last 30 years and has evolved into a ‘post-real’ pseudo-science. (https://paulromer.net/the-trouble-with-macro/).

He holds Robert Lucas, Thomas Sargent and Ed Prescott for being the key figures that led the development of ‘post-real macroeconomics’, despite important scientific contributions that they made prior to 1980.

My inference from this wide-ranging critique is that ‘post-real’ macroeconomics has little to offer to policy-makers in the developing world. What one needs, as Paul Romer puts it, are practitioners who can put useful knowledge to work.

Structural reforms – promises and pitfalls

Structural reforms entailing interventions to deregulate labour and product markets can engender ex-ante long-term gains in terms of higher output and more jobs, but their short-run consequences cannot be ignored. This reminds one of the Keynesian dictum that in the long-run we are all dead.

The latest (model-based) conclusions based on an IMF evaluation (2016) are that, while there are likely to be ex-ante long-term gains in terms of higher output and more jobs, a lot depends on the state of the business cycle.[1] If structural reforms are pursued during a recession and periods of slow growth – as is the case now in some BRICS (Brazil, Russia, India, China, South Africa– it will worsen prevailing economic conditions by reducing output and employment that might persist for more than a year.

In the case of India, expected long-term gains from labour market reforms need to consider high short transition costs as noted above. As one study observes: ‘There is a fall in GDP, a rise in unemployment, and a fall in the share of formal firms in the first four to five quarters post labour market reform’ (Anand and Khera, 2016: 36, italics added).[2] If these results hold, the political ramifications are, to put it mildly, rather uncomfortable. Would an incumbent government seeking re-election be prepared to argue that ordinary citizens should suffer for a year or more because there will be a lot of gain after enduring such pain? As a former British (Harold Wilson) observed:a week is a long time in politics.

[1] IMF (2016) World Economic Outlook, April

[2] Anand, R and Khera, P (2016) ‘Macroeconomic Impact of Product and Labor Market Reforms on Informality and Unemployment in India’, IMF Working Paper No.16, The authors note that this can be mitigated by focusing on product market reforms.

 

Macroeconomic policy, growth and job creation – the case for a dual mandate

Growth and job creation is the product of a complex and collective process requiring complementary interventions across a wide range of areas. Our view is that macroeconomic policies are necessary, but not sufficient, in promoting sustainable growth and employment. This necessarily modest formulation thus eschews a fundamentalist approach to the role that macroeconomic stability plays in national economies. Of course, there will be situations and episodes when concerns about lack of macroeconomic stability become paramount – such as cases of hyper-inflation, out-of-control government budgets. Yet, these are the exceptions rather than the norm.

There is also the issue of what might be called perverse incentives. If, for example, central banks and finance ministries are given so-called ‘single mandates’ in which all they need to care about is the attainment and maintenance of macroeconomic stability guided by specific nominal targets, then they will indeed care about those targets to the exclusion, or at least  insufficient consideration, of broader economic and social goals. Hence, we argue that key macroeconomic policy-making agencies should be empowered with a ‘dual mandate’. They should be guardians of stability, but they should also be active agents of development and structural transformation.

Having a dual mandate entails a specific implication. Given that the goals are now broader, there should be a correspondingly broader range of policy instruments. Otherwise, governments will be faced with painful trade-offs. For example, if a central bank wishes to pursue the goal of financial inclusion, it needs specific instruments to pursue that goal, while other instruments – such as the policy rate – can then be assigned to pursue the goal of price stability.

Market confidence – really?

Many governments of both rich and poor countries worry a great deal about ‘market confidence’ and use that as a rationale (at least in terms of public statements) for guiding the design and conduct of macroeconomic policy as well as structural reforms. Inflation nudging above the 5 per cent mark that we set as our target? We better do something about it because the ‘market’ will get annoyed. Debt to GDP ratio inching above 60 per cent? Well, we should start a process  of fiscal consolidation soon or else we might lose our favourable credit rating that has been bestowed on us by the omnipresent ‘market’ (which often appears to be a synonym for credit rating agencies). We need to have flexible labour markets through structural reforms because the market complains about our rigid labour laws which act as a disincentive to invest.

There is insufficient reflection in public discourse on what ‘market confidence’ really means. Are we talking about domestic or foreign investors? Why should be only talk about the ‘confidence’ of the ‘market’ rather than the community at large?  After all, the ‘market’ is embedded in a community and polity. Why discuss a part of it and not the whole? In any case, what is the evidence about the determinants of ‘market confidence’?

One can easily overlook the fact that multiple studies show that formal assessments of sovereign credit worthiness by credit rating agencies routinely include growth indicators in addition to measures of debts and deficits (see, for example, Iyanatul Islam and Martina Hengge, https://www.socialeurope.eu/2012/07/fiscal-austerity-borrowing-costs-and-the-eurozone-economies/).  What is perhaps less well-known is that growth has a more significant impact on sovereign default risks than debts and deficits. The implication is that cutting deficits to reduce public debt might be self-defeating given that such actions typically reduce growth raising doubts among ‘bond vigilantes’ about the sustainability of fiscal austerity measures.

Macroeconomic stability revisited

A 2013 World Bank report (‘Jobs’) notes that macroeconomic stability is ‘fundamental’ to growth and development. Similar proclamations can be found in a 2013 IMF report (also on the theme of jobs) and a 2014 report by the OECD. The IMF report defines macroeconomic stability in terms of low and stable inflation, fiscal and external sustainability. These ideas are core elements of a target-driven approach to macroeconomic policy. Thus, one observes the rise and entrenchment of the notion of inflation targeting and fiscal rules.

As is well-known, inflation targeting was first introduced in New Zealand in 1990 and subsequently this became the norm for OECD countries. Developing countries also adopted inflation targeting – or least had publicly announced inflation targets. For developed countries, the typical inflation target ranged between 2 to 3 per cent and for developing countries, the upper limit for inflation was typically set at 5 per cent.

Fiscal rules – in which publicly announced limits were placed on budgetary aggregates – also became part of the toolkit of developed countries and subsequently were adopted by a range of low and middle-income countries. The Maastricht Treaty, for example, set 3 per cent budget deficit (relative to GDP) and 60 per cent public debt to GDP ratio as part of its fiscal framework. Similar numbers can now be found for such large and populous economies as India and Indonesia. A 2015 OECD Policy Brief has issued new guidelines suggesting that emerging economies should aim for 30 to 50 per cent debt to GDP ratio.

The IMF has spent a good deal of its intellectual and operational resources to suggest some targets with respect to external sustainability. A conventional prescription is that developing countries should have adequate foreign exchange reserves that have at least three months of import coverage.

Based on these ideas one can now formulate an operational notion of macroeconomic stability. Thus, macroeconomic stability for developing countries prevails if: (1) the publicly announced inflation target  is not persistently breached, (2) the publicly announced fiscal rules are, on average, met  and (3) there are adequate foreign exchange reserves.

How robust are the macroeconomic policy targets as noted above, especially as perceived from a development and growth perspective? This is where critics would argue that the notion of macroeconomic stability becomes fuzzy. Can one really say with a great deal of confidence that a developing country that, say, has an inflation rate of 7 per cent is likely to grow less rapidly than a developing country that persistently meets an inflation target of 4 per cent? Unfortunately, the relationship between growth and inflation is not robust. Similar caveats apply to the relationship between growth and fiscal rules. Of course, one can readily agree that hyper-inflation is bad for growth as are out-of-control budget deficits. Outside these extremes, ‘intermediate cases’ are more complicated and clear-cut pronouncements are not easy to make. Hence, discretion and judgement, informed by the best available evidence, is a desirable way of conducting macroeconomic policy rather than an uncritical embrace of a target-driven approach to macroeconomic stability.

I explore these ideas more fully in one of my recent co-authored books: Islam, R and Islam, I (2015) Employment and Inclusive Development, Routledge, London and New York.