Maria da Conceição Tavares and demand-led growth in developing countries

New paper by Franklin Serrano, Miguel Carvalho and Ricardo Summa on Maria da Conceição Tavares (1930-2024) and her contributions to demand-led growth theory. The paper reviews the pioneering contributions of Maria da Conceição Tavares to the theory of demand-led growth, emphasizing her early recognition that effective demand is central not only in the short run but also in the long-run process of capital accumulation. In that respect, it is more focused and detailed in the discussion of economic growth, than my paper (in this book) that tried to put her ideas in the context of the Latin American Structuralist School, and the emergence of heterodoxy in Brazil.

From the 1960s onward, Tavares developed a framework that departed from dominant development economics, which typically treated growth in developing countries as supply-constrained. Instead, she argued that developing economies function like any capitalist system, where output and growth respond to demand.

A key contribution highlighted in the paper is Tavares’s analysis of structural change during import substitution industrialization. She explains how growth regimes can shift from export-led to domestic demand-led as the economy develops a capital goods sector and increases the domestic content of demand. Public investment and industrial policy play a central role in sustaining this transition, reinforcing the idea that growth is driven by expanding demand rather than limited by supply constraints.

The paper also stresses her critique of stagnationist theories. Against views (including Celso Furtado’s work) that predicted long-run stagnation due to structural constraints, Tavares argued that slowdowns are typically the result of insufficient effective demand rather than inherent limits to growth. By distinguishing between capacity and its utilization, she shows that apparent structural problems often reflect cyclical demand deficiencies.

Another central element discussed in the paper is her Kaleckian inspired separation between distribution and accumulation. Tavares argued that income distribution does not mechanically determine growth. Instead, it affects demand conditions but does not impose a necessary trade-off between consumption and investment. Growth depends on autonomous components of demand, and different distributive regimes can sustain accumulation depending on the broader demand structure.

The paper emphasizes her original contribution regarding autonomous demand, particularly capitalist consumption and public expenditure. These components, along with residential investment, are seen as crucial drivers of long-run growth because they sustain demand without directly expanding productive capacity. This insight anticipates later developments in demand-led growth theory, especially the supermultiplier framework.

Finally, and perhaps more importantly, the authors discuss Tavares’s views on investment and financial capital. Drawing on Hilferding, Hobson and Schumpeterian ideas, she incorporates autonomous investment linked to innovation and financial structures. The paper concludes by showing her influence on two strands of contemporary research, one that treats investment as fundamentally autonomous, related to the financialization literature, particularly as developed at Unicamp, where Tavares taught starting in the 1970s, and another, associated to Serrano himself and his co-authors at Tavares's alma mater in Rio, that led to the Sraffian supermultiplier, where investment is entirely induced.

Martin Wolf and what to do about the commodity shock

Martin Wolf's column today reflects on the commodity shock on the basis of the data provided by the World Bank in the last Commodity Markets Outlook. As has been the prevailing consensus he suggests that this is an unprecedented shock, larger than the oil shocks of the 1970s, and any other commodity crises of the last 50 years.

In his words, based on the World Bank: "the initial impact of the closure of the strait was a global loss of 10.1mn barrels a day of oil in March. This was much larger than the impact of the Iranian revolution in 1979, the Arab oil embargo in 1973, Saddam Hussein’s invasion of Kuwait in 1990, or the Iran-Iraq war in the 1980s."

The current data on the price of oil has not yet confirmed these pessimistic predictions. The issue might be related to how much of a chockepoint the Strait of Hormuz really is, and how trade can adapt to it. Note that between 1967 and 1975 the Suez Canal was closed and forced oil shipments around the Cape of Good Hope. This caused a surge in transport costs, incentivized the development of massive supertankers, and forced a rerouting of trade, but it had limited initial impact on oil prices compared to the 1973 oil crisis.

It is obviously to soon to say, but so far the current oil shock has not lived to previous ones, when oil producing countries in OPEC had more power. Figure below shows the nominal and real price of Brent oil, which remain quite below the 1970s peaks.

Wolf is on the pessimistic side of things, and suggest, correctly on that, that costs will be unevenly distributed and that action to avoid worst problems is necessary.  He says: "this is a sizeable disruption, which is sure to hit many of the world’s poorest people and most vulnerable countries hard. The rise in oil and fertiliser prices guarantees that. This underlines the moral case for continuing to provide international assistance." That's all good, even if one is more cautious about possible outcomes.

But then he goes on to say that: "central banks are going to have a tricky time navigating the consequences. But they must not let inflationary expectations slip out of control." In other words, this is going to hurt the poor, and he thinks it will very much, since this is an unprecedented shock, but central banks should not care, and be concerned only with inflation expectations.

Before the Pandemic inflation there was some growing understanding, now less so, that inflationary expectations are not that relevant (on that see this). Jeremy Rudd wrote an article for ROKE suggesting that modern macroeconomics assigns too much importance to inflation expectations, with weak theoretical and empirical justification. Measures of inflation expectations (surveys, market-based) are noisy, inconsistent and weakly correlated with actual inflation outcomes. For him, this makes them unreliable as a key driver in models.

If inflation is caused by a hike in costs of production, there is very little that a hike in interest rate could do to control it, other than repress wage increases by slowing down the economy. Not that this should be a major concern in most advanced economies, at least.

My guess is that the impact will be smaller than expected, and that central banks will overreact. That might be the case of the Fed today, that should reduce rates, but probably won't because of inflationary expectations.

Central Bank Independence and Fiscal Rules in the Periphery

 

Reading Keynes in Buenos Aires

This week I participated (virtually) in a conference in Colombia organized by the finance ministry, alongside a remarkable group of participants, including Rafael Correa, Isabella Weber, and Daniela Gabor. The focus of the discussion was the ongoing dispute between the government of Gustavo Petro and the Colombian central bank over the persistence of relatively high interest rates, and the broader question of central bank independence.

None of this, of course, is new. Variants of this conflict have played out repeatedly, including in the United States, where Donald Trump has openly criticized the Federal Reserve for maintaining interest rates he considers too high, and has clashed with Jerome Powell, as I have discussed here. But the Latin American context adds an important layer that is often missing from these debates.

The first point worth stressing is historical. The notion of an independent central bank is a relatively recent invention. Central banks have existed for centuries, but their functions have evolved significantly. Early central banks, even before institutions like the Bank of England (see here and here), were deeply intertwined with the fiscal needs of the state. They acted as fiscal agents, helping to finance public debt, often at levels that would alarm today’s orthodox commentators. In Britain, public debt during the Industrial Revolution exceeded 100 percent of GDP, with significant portions effectively absorbed by the central bank.

In this context, I suggested an analogy with Ha-Joon Chang’s argument about kicking away the ladder. Chang shows that today’s advanced economies relied heavily on protectionism and industrial policy during their own development, only to later promote free trade as the universal path, effectively denying developing countries the same tools. Something similar can be said about central banking. Historically, advanced economies used their central banks as instruments of development and as fiscal agents of the state, helping to finance large public debts and support economic transformation. Once they achieved development, they moved toward promoting central bank independence as a general principle, thereby limiting the ability of developing countries to use similar financial tools. In that sense, one could say that they also kicked away the financial ladder.

The idea that central banks should operate according to fixed rules, insulated from political pressures, is more closely associated with the gold standard era and the late nineteenth century. Even then, this rule-based framework reflected specific historical conditions rather than a timeless principle. And, as is well known, it broke down in the interwar period, when governments, faced with high unemployment, and the crisis of British hegemony, abandoned orthodoxy in favor of more active coordination between central banks and treasuries.

The US experience is illustrative. Under Marriner Eccles during the New Deal and World War II, the Federal Reserve worked closely with the Treasury, including maintaining low interest rates on government debt. It was only with the Treasury–Fed Accord of 1951 that the modern notion of central bank independence took shape. Even then, the separation was never as clean as the textbooks suggest.

This is because, at a more fundamental level, the central bank and the Treasury cannot be meaningfully separated. The central bank still acts as the fiscal agent of the state. Government spending creates money, whether through keystrokes in digital accounts, as emphasized recently by Modern Money Theory authors, or more traditional mechanisms. The idea that governments can run out of money (domestic issued money) in a technical sense is a useful fiction, one that obscures the real constraints, which are not financial but material. As John Maynard Keynes famously suggested, if it can be done, financing can be arranged.

This brings us to the present conjuncture. The recent inflationary episode in the United States was not primarily the result of excessive demand, but of supply-side disruptions, pandemic-related bottlenecks and energy price shocks (I wrote many posts on that; see this one). As these factors subsided, inflation fell. The Federal Reserve’s aggressive interest rate hikes were, at best, incidental to this process, and at worst risked pushing the economy into recession. What prevented that outcome was not monetary policy, but fiscal expansion, particularly the initial stimulus enacted by the Biden administration, the one that Larry Summers referred to as the worst economic mistake of the last 40 years (it's worth remembering).

If this is the case at the center, the implications for the periphery are even more significant. In Latin central bank independence is even more recent than in the US. It results from institutional arrangements that have evolved particularly in the wake of the debt crises of the 1980s and the imposition of the Washington Consensus, but that have been fully accepted by left of center governments in the region (note that most central banks in the region were created to deal with development issues in the aftermath of the 1930s crisis; this is represented by Prebisch, reading Keynes in Buenos Aires, in the figure above*).

The debate in Colombia mirrors similar tensions in Brazil, where Luiz Inácio Lula da Silva has criticized high interest rates maintained by the central bank under the previous chairman, appointed by Jair Bolsonaro, Roberto Campos Neto.  Interest rates, which remain high with the current president of the Brazilian Central Bank, Gabriel Galípolo, have not precluded growth, which depended on fiscal expansion and higher wages. True, Brazil has returned to growth, but it has done so more slowly than it could have, but not as a result of the interest rate policy. Instead, the slower pace of growth results from the self-imposed fiscal limits (see this by Haluska, Serrano and Summa).

Here is where the Colombia and Latin America, more generally, diverge from the US case. In the periphery, central banks do not operate in a vacuum. Their policies are constrained by the global financial environment, particularly by the stance of US monetary policy. Higher interest rates in the United States put pressure on developing countries to maintain relatively high rates of their own, in order to stabilize nominal exchange rates and avoid capital outflows and depreciation. Currency depreciation is not only inflationary but also contractionary, making macroeconomic management far more difficult.**

This is why the question of central bank independence, while important, is ultimately secondary to the issue of fiscal rules. Even countries without severe external constraints, such as Colombia or Brazil, face self-imposed limits on their ability to use fiscal policy to expand demand and promote growth. These constraints are not natural. The challenge, then, is not simply to debate whether central banks should be independent or not and from whom (certainly from financial markets). It is to rethink the broader framework within which monetary and fiscal policy operate, particularly in the periphery.

The discussion in Colombia, therefore, is not just about the appropriate level of interest rates or the degree of central bank independence. It is about the broader question of how much room governments have to use fiscal policy as a tool for development.

* Yes, the figure is AI; and the 9 of July monument, the obelisk, which was completed in 1936, was designed by Raúl's brother, Alberto Prebisch.

** Hélène Rey refers to this as the dilemma (instead of trilemma), since countries, with fixed or flexible (and, I guess, anything in between) exchange rate regimes, loose monetary policy autonomy with greater capital mobility.

Robert Skidelsky and the Many Lives of Maynard Keynes

Keeping up with the Keyneses

The death of Robert Skidelsky last week marks the passing of one of the most important interpreters of John Maynard Keynes. He will be remembered above all for his monumental three-volume biography of Keynes, widely regarded as the definitive account of Keynes’s life and times. That work, written over several decades, together with the publication of the Collected Writings edited by Donald Moggridge, did much to reposition Keynes as a historical figure. It also humanized him in ways that earlier accounts, such as Roy Harrod’s, had not. In that sense, Skidelsky’s contribution helped bring Keynes back into the conversation at a time when Keynesian economics itself was in retreat.

Skidelsky was also, importantly for us, a member of the editorial board of the Review of Keynesian Economics (ROKE), and a supporter of its broader intellectual mission. As I noted in my short piece on Robert Solow, the journal was conceived as a counter-cultural project, aiming to reestablish Keynesian economics, understood broadly, and without hyphens, as a central framework for macroeconomic analysis. Skidelsky understood that mission and supported it, at a moment when such a project was far from obvious or widely accepted.

At the same time, Skidelsky’s interpretation of Keynes was not without its limitations. In his own critique of Roy Harrod’s biography, he rightly argued that it sanitized Keynes and obscured important aspects of his life and work. Yet his own work, written in the context of the dominance of the Neoclassical Synthesis and the broader retreat of Keynesian ideas, often did not fully break with that framework. Skidelsky’s biography, while more historically accurate and richer in detail, remained in important respects defensive, accepting the view that Keynes’s theory rested on imperfections rather than representing a fundamental break with orthodox economics.*

This matters because the interpretation of Keynes is never neutral. The postwar Keynesianism associated with the Neoclassical Synthesis reduced Keynes to a theory of market failure, wage rigidities, and short-run stabilization, leaving intact the core of marginalist theory and Say’s Law in the long run. In that reading, Keynes becomes a useful supplement to an essentially self-correcting market system, rather than a critic of it. Skidelsky did much to restore Keynes the person, but less to fully recover Keynes the theorist.

None of this should detract from his achievements. Skidelsky was a serious scholar, a prolific writer, and a public intellectual engaged with the issues of his time. He consistently defended a moderate, pragmatic Keynesianism, what he himself sometimes described as a middle way between the excesses of unregulated capitalism and the failures of central planning.

For those of us working in the Keynesian and heterodox traditions, his legacy is therefore a mixed but important one. He helped keep Keynes alive during decades in which the profession largely moved in other directions. He supported efforts, like ROKE, to rebuild a broad (pluralistic) Keynesian consensus in the profession. But his interpretation also reflects the limits of the period in which it was developed, a period in which Keynesianism was often reframed in more conventional, and less radical, terms.

Each generation, gets its own Keynes. Skidelsky gave us one that was richer, more human, and more historically grounded than the sanitized versions that preceded it. The task remains to recover, more fully, the theoretical and political implications of Keynes’s work.

* See the more recent work by Zachary Carter that connects Keynes' biography with the ideas of Joan Robinson and John Kenneth Galbraith, and the development of heterodox views based on Keynes thought. 

Milei, Markets, and Mirage: Why Argentina’s “Success” Is Not What It Seems

There is a growing narrative in the international press, and among those who consume it, that Javier Milei has turned Argentina into a success story. Inflation is supposedly down, poverty is falling, growth is rebounding, and the long-standing problems of fiscal excess and state overreach are said to be finally resolved. For some, this is taken as vindication of “free market” principles.

 

But before we rush to declare ideological victory, it is worth pausing. If one is willing to infer from Argentina that markets work, why not infer from Scandinavian welfare states that intervention works just as well? The answer, of course, is that these simplistic conclusions misunderstand how economies actually function. There are no single-policy experiments in macroeconomics, and certainly none that can be reduced to slogans about the "free market” versus “the state.” As I will argue below, the apparent successes of the current Argentine administration are far more fragile, and far more misleading, than commonly portrayed.

Yes, inflation has come down from the extremely high levels reached at the end of the Alberto Fernández administration. But context matters. Those peak inflation rates, above 200% annually, were largely the result of massive exchange rate depreciations, including one induced under pressure from the International Monetary Fund (IMF) during the election of 2023.

Crucially, the current government itself triggered a sharp devaluation at the outset, accelerating monthly inflation from roughly 12% to 25% in December of 2023. The subsequent decline in inflation is not the result of laissez-faire policies, but rather of exchange rate stabilization, made possible by external financing. This includes a swap line with China and a substantial IMF agreement (around $14 billion disbursed), alongside additional support linked to political ties with the United States, again close to the midterm elections last year.

In other words, inflation came down not because markets are free, and fiscal spending was contained -- that caused a slowdown of the economy (more on that below) -- but because the exchange rate was actively managed with the help of international financing. So much for free markets. Even now, inflation remains around 30% on an annual basis, higher than during much of the period under Cristina Fernández de Kirchner. If this is success, it is a rather modest one.

The claim that Argentina is booming is equally misleading. What is improving is not the domestic economy, but the external sector. After several years of drought that depressed agricultural exports, favorable weather and higher commodity prices, especially for soybeans, have boosted export revenues. Additionally, infrastructure projects initiated under previous administrations, such as energy investments linked to Vaca Muerta, have reduced energy imports and improved the trade balance. None of this has much to do with current policy. It is largely the result of exogenous factors and past investments.

Meanwhile, the domestic economy is stagnant, and this is the direct result of the draconian cuts of government spending, including investment and spending on crucial areas like Research & Development that will hurt growth, and exports in the future. Capacity utilization collapsed in December 2025, when he assumed the government (as can be seen below), as much as real wages did (as I have shown before here).

 

Poverty has indeed declined from its recent peak. But here again, the explanation is more mechanical than structural. Poverty in Argentina is highly sensitive to inflation. The spike in prices, partly triggered by the initial devaluation under the current administration, pushed poverty sharply upward. As inflation stabilized, poverty naturally declined from those elevated levels. This is less an achievement than a reversal of a self-inflicted shock, even if poverty was increasing at the end of the previous government. And it remains higher than it was with Cristina. And it is higher than what his government claims (as is inflation; note that the head of the statistics office resigned for issues with inflation measurement, something that the right always criticized about the Kirchners).

On further note, part of the reduction in extreme poverty is due to the continuation of transfer programs, ironically maintained under pressure from the IMF. Without these policies, indigence would be significantly worse. This underscores a basic point often ignored in market triumphalism, markets do not solve poverty. In any functioning society, that responsibility falls to the state.

 

This is not a story of market-led success. It is a story of short-term stabilization underpinned by external support, which has increased indebtedness significantly,making Argentina by far the biggest debtor to the IMF (see above; the other expansion was with Macri, that had the same economic team; yeah he is also an outsider, wink, wink, say no more), combined with policies that risk undermining long-term productive capacity and the external sustainability of the country's foreign obligations. In other words, Milei makes a crash much more likely.

ROKE's New Clothes

A first look at the new ROKE cover, launching next year for the journal's 15th anniversary.

A little bit of the history of the journal appears in Robert Solow's obit, who was a member of the editorial board.