Growth Rate and Level Effects,the Stability of the Adjustment of Capacity to Demand and the Sraffian Supermultiplier

Abstract

The paper presents a simple but complete formal version of the Sraffian supermultiplier model in which (i) growth is led by the autonomous components of demand that do not create capacity; (ii) private productive investment is an induced expenditure; and (iii) income distribution is exogenous. We show that the main results of the long-period and fully adjusted versions of the model in terms of growth rate and level effects are quite similar and therefore that such results in no way require the full adjustment of capacity to demand. We then analyze a simple set of sufficient dynamic local stability conditions that allow the long-period positions to gravitate towards the fully adjusted position in which capacity is adjusted to demand and that also provide the upper limit to demand-led growth paths. Finally, we show how some critics of the model have misinterpreted it as being supply-led and how this has led to a further confusion between the analysis of the tendency towards a constant value of the capacity-saving-determined warranted rate of growth and the proper stability analysis of the opposite process of adjusting capacity to demand (which tends to adjust the warranted rate endogenously to the growth rate of autonomous demand).     

Demand-led Growth Theory: A Historical Approach

This paper builds upon the Keynesian theory of demand-led growth in order to provide an analytical framework for explaining economic growth and development in concrete terms, consistent with the fundamental idea that growth in output and employment is determined by the growth in aggregate demand. The framework employs a historical approach to identify the main factors and their role in explaining demand-led growth and the accumulation process. The theoretical model developed abandons steady-state conditions by proposing that capacity utilisation varies in the long run as well as in the short run to ensure output has the elasticity to accommodate levels of autonomous demand free of any capacity saving constraint. On the basis of our analytical framework, the paper considers the main factors that explain the growth in aggregate demand: first, by examining the variables that determine the ‘super-multiplier’ and what social, institutional and technical conditions can cause its value to change over time; second, by identifying the components of autonomous demand and the main forces explaining their growth; and third, by considering the manner in which technical progress promotes demand-led growth.     

Neo-Kaleckian and Sraffian Controversies on the Theory of Accumulation

Abstract

Non-orthodox economists generally share the Keynesian Hypothesis of the independence of investment from capacity savings, in the long run no less than in the short run. This hypothesis marks an essential point of difference from neoclassical theory. Keynes showed that within the limits of the existing capacity utilisation, investment determines savings rather than the other way around. How best to extend this conclusion to the long run is the object of the current paper. The paper assesses the controversy on demand-led growth that has taken place since the mid-1980s between neo-Kaleckian and Sraffian authors. The Sraffian front may be divided into a first and a second Sraffian position, the latter being the Sraffian supermultiplier approach. I shall argue that this second approach is the most promising framework for analysing economic growth.     

Growth without normal capacity utilization

Within the demand-led approach to growth, the long-period tendencies of quantities cannot be effectively studied through theoretical positions entailing normal utilization of capacity. Whether in the form of constant or of average normal utilization, this assumption contradicts the supposed autonomy of aggregate demand. Analysis of the operation of the adjustment of capacity to demand suggests that potentially offsetting forces make fully adjusted positions irrelevant. As quantities cannot be assumed to gravitate towards such positions, the relations between quantity variables determined on the normal utilization hypothesis provide a poor guide to the analysis of reality.     

The instability principle revisited: an essay in Harrodian dynamics

Abstract

Harrod's contribution to economic dynamics is very often reduced to the dynamic equation whose character is unstable. Growth theory and cycle theory based on Harrod's contributions aimed at reducing this instability. Following Harrod, who was strongly opposed to the ‘knife-edge’ interpretation, we define the warranted rate of growth as a ‘moving equilibrium’ and focus on its interaction with the effective rate of growth. Our simple Harrodian model generates various dynamics from stable path, to growth cycle and corridor of stability.     

Nicholas Kaldor on Adam Smith and Allyn Young

ABSTRACT

Nicholas Kaldor was much influenced by the Smith-Young view of increasing returns. The objective of this paper is to critically examine Kaldor’s interpretation of Smith and Young. In particular, five questions are addressed: (1) Does Smith’s Wealth of Nations have nothing much to contribute in terms of disequilibrium theory or increasing returns after the middle of chapter four? (2) Did Smith and Young have a sectoral view of increasing returns in the sense that they saw increasing returns being confined to manufacturing only? (3) Does the Youngian growth mechanism need to be supplemented with Keynesian aggregate demand so that growth does not fizzle out? (4) What are the important policy differences between Kaldor and the Smith-Young analysis of increasing returns? (5) Finally, what explains Kaldor’s interventionist bent of mind and his dirigiste approach to policy making?     

Introduction: Is the European Union Capable of Integrating Diverse Models of Capitalism?

ABSTRACT

The causes and consequences of the Euro crisis have led comparative political economy scholars to question whether European integration can accommodate diverse models of capitalism. This special issue addresses two important questions about the compatibility of diverse growth models within the European Union (EU): Are some growth regimes better suited to European integration than others? and does the EU favour a particular constellation of domestic institutions? Contributions within this special issue provide a qualified yes to these questions, concluding that the EU favours export-led growth models whilst it penalises and discourages domestic consumption-oriented growth paths, particularly those that are financed by debt accumulation. While recent comparative capitalism literature highlights that European monetary integration has favoured export-led growth regimes, contributions in this special issue outline that the EU’s prioritisation of export-led growth over domestic demand-led growth is present in other facets of integration, including EU accession, financial integration, the free movement of people, fiscal governance and the Europe 2020 growth strategy. Findings here provide important insights for both the European integration and comparative capitalism literature, highlighting that the unique economic ties being forged within the European project may be problematic for those countries outside northwestern Europe and for workers in low-wage domestic sectors.     

The Social Significance of Consumption and the Elasticity of Output to Demand in the Long Run: A Reply to Gualerzi

Gualerzi's comment on Trezzini’s 2015 article (‘Growth without Normal Capacity Utilization and the Meaning of the Long-Run Saving Ratio.’) underestimates the role played by the long-run elasticity of output with respect to changes in aggregate demand in my analysis and in the demand-led processes of growth.     

Growth,Normal Capacity Utilization and the Long-Run Saving Ratio: A Comment

In a recent paper Attilio Trezzini presents an explanation of the saving ratio that does not rely on normal capacity utilization positions. Trezzini instead focuses on the fluctuations of consumption and investment. But that very focus, I argue, requires a different kind of approach. Once the traditional theory of saving is discarded, the ‘indeterminacy’ of the saving ratio opens the way to an analysis of the evolution of consumption, and of how that evolution affects aggregate demand. The generation and evolution of autonomous demand are matters of obvious relevance to the classical Keynesian approach to the analysis of growth. The present comment takes James Duesenberry’s criticism of demand theory as the starting point for an examination of the evolving standard of consumption and autonomous (‘innovative’) investment, therefore addressing directly the investment–consumption relationship. There are of course a number of complicated questions involved and they have not yet been satisfactorily analysed. They are part of the necessary task of articulating a theory of consumption consistent with demand-led growth and forward-looking investment decisions.     

Kaleckian Effective Demand and Sraffian Normal Prices: Towards a reconciliation

Sraffians and Kaleckians alike reject the belief that higher rates of accumulation need be associated with lower real wage rates or higher propensities to save. The rejection of this proposition is mainly based on the endogeneity of the rate of capacity utilization, both in the short and the long run. This endogeneity often relies on a discrepancy between the realized and the normal rates of profit, or between the realized and the target rate of capacity utilization, a discrepancy which some authors believe is unwarranted in long run analysis. Various models that eliminate this divergence are outlined. In all these models, the normal rate of profit itself is taken as an endogenous variable. In the first two models, the normal rate of profit depends either on the realized profit rate or the rate of interest. Supply-led results may then reappear in long run analysis. In the last model, one introduces the possibility of a divergence between the rate of return as assessed and targeted by firms, and the rate of return that is actually incorporated into prices. This divergence arises because of the bargaining power of workers and their real wage resistance. Under these conditions, the demand-led results of the Kaleckian tradition are recovered in a model with definite solutions.     

Krishna Bharadwaj's “Return to Classical Theory”: an attempt towards an archaeological reconstruction

Abstract

In the wake of Sraffa's ‘return to classical theory’, Krishna Bharadwaj undertook a critical reassessment of Marshall's claim to continuity with classical theory in general and Ricardo's ‘intensive margin’ in particular. Her analysis is based on an analytical separation between two distinct ways of economic reasoning: the ‘surplus based’ and the ‘demand and supply based’ theories. Calling it an ‘archaeological reconstruction’ of the history of economic theories, I will examine how such an interpretation of theoretical shifts clarifies both the presuppositions behind analysing at the ‘margin’, and hence its radical departure from the conceptual content of the classical theory.     

Making EMU Work: Some lessons from the 1990s

This paper investigates what lessons may be learned from Europe's convergence process of the 1990s. The paper challenges the conventional focus on labour market institutions and 'structural rigidities' as the root cause behind Europe's poor employment record. Instead, it is argued that macro demand management played the key role, particularly monetary policy. Concentrating on Germany, the analysis shows that fiscal consolidation was accompanied by monetary tightness of an extraordinary degree and duration. This finding is of interest regarding the past as well as the future. For the Maastricht regime much resembles the one that produced the unsound policy mix of the 1990s: a constrained fiscal authority paired with an independent monetary authority free to impose its will on the overall outcome. The analysis thus highlights a key asymmetry in the Maastricht regime that is likely to continue to inflict a deflationary bias on the system. It is argued that this policy bias may be overcome only if the ECB deliberately assumed its real role of generating domestic demand-led growth, thereby resolving Euroland's key structural problem: asymmetric monetary policy. As regards the conventional structuralist theme, the analysis debunks the 'Dutch myth' of supply-led growth through structural reform. Depicting a popular fallacy of composition, we stress that the peculiar Dutch strategy of demand-led growth does not present itself as an option for Euroland.     

Long-run Effective Demand in the US Economy: An Empirical Test of the Sraffian Supermultiplier Model

The Sraffian supermultiplier is a model of demand-led growth that stresses the importance of the autonomous components of aggregate demand (exports, public spending and autonomous consumption). This article tests empirically some major implications of the model employing macroeconomic data for the United States. In particular, we study the long-run relation between autonomous demand and output through cointegration analysis. The results suggest that autonomous demand and output are cointegrated and that autonomous demand exerts a long-run effect on output. There is also some evidence of simultaneous causality, especially in the short-run. Movements in autonomous demand and in the investment share are also found to be positively related, with Granger-causality going from Z to I/Y.     

Sraffa,Keynes and 'The Years of High Theory'

This paper argues that Shackle's interpretation of 'the years of high theory' is flawed. Shackle (1967) sees Sraffa's critique of the Marshallian theory of value only as a step in the development of the theory of imperfect competition. In the same vein, Shackle reduces the message of Keynes's General Theory to the claim that unemployment results from the existence of uncertainty and irrational expectations. Thus, Shackle leaves open the possibility that both Sraffa's critique of Marshall and Keynes's theory of effective demand do not question the internal coherence of neoclassical theory, but instead merely assert that market imperfections render it irrelevant for the analysis of the real world. This paper argues, in contrast, that the theories of Sraffa and Keynes should be interpreted as radical departures from marginalism, and represent a return to the surplus approach of classical political economy.     

The challenge to china’s enterprises from increasing labor costs: the product quality perspective

ABSTRACT

Using China Employer–Employee Survey data, this paper investigates the possible heterogeneous results of increasing labor costs of different firms. The paper finds that, unskilled labors have a higher wage growth rate than the skilled labor. Firms with higher product quality employ more skilled labor, and thus are less affected by the increasing labor costs. On the other hand, firms with higher product quality have less elastic demand, which makes it possible for them to increase their prices without demand decreasing. The conclusions are well supported by the data. Therefore, we should treat the challenge of increasing labor cost in a new way. The real challenge of increasing labor cost is greater for low-quality firms. The empirical results suggest that some of the low-quality firms should upgrade their quality to a higher level to offset their labor cost increase.

Abbreviations: CEES: China Employer-Employee Survey LP: Labor productivity LTP: Lewis turing point TFP: Total factor productivity     

Public Debt,Economic Growth and the Real Interest Rate: A Panel VAR Approach to EU and OECD Countries

ABSTRACT

We investigate the causal relationship between public debt ratios and economic growth rates for 31 EU and OECD countries. We estimate a panel VAR model that incorporates the long-term real interest rate on government bonds as a vehicle to transmit shocks in both the public debt to GDP ratio and the economic growth rate. We find no causal link from public debt to growth, irrespective of the levels of the public debt ratio. Rather, we find a causal relationship from growth to public debt. In high-debt countries, the direct negative impact of growth on public debt is enhanced by an increase in the long-term real interest rate, which in its turn decreases interest-sensitive demand and leads to a further increase in the public debt ratio.     

A note on the theory of demand-led growth

This paper presents a demand-led growth model where an exogenousinvestment function drives capital accumulation through a Bernoullidifferential equation. In such a framework investment generatessavings through changes in capacity utilisation and/or incomedistribution, making economic growth totally demand-led. Takinga Structuralist perspective the model is constructed to be consistentwith different Keynesian closures for the investment function,as well as with different assumptions about savings' adjustmentto investment.     

Marx and the Development of Critical Political Economy

Abstract

Although relevant analytical developments were provided over time by the critique of economic theory, they did not succeed in inhibiting the occurrence of a full-fledged revival of the neoclassical interpretation of capitalism. The development of critical economics and its capability of checking the influence of the dominant economic culture have been especially prejudiced by the failed integration between the analyses of Marx and Keynes. Following Keynes, once the ‘inducement to invest’ had been singled out as the central question for the explanation of output levels, one should have promptly acknowledged that on this very question Marx's analysis was significantly richer and more relevant than Keynes's—the richness and relevance of the former ultimately resting on the great attention Marx dedicated to the complex question of the influence of income distribution on the capitalists’ incentive to invest. It is argued in the article that through the study of this influence Marx succeeded in putting together the essential elements of a critical theory of effective demand, based on the principles and mechanisms that govern the distribution of income between profits and wages.     

Hidden links in the warranted rate of growth: the supermultiplier way out

Post Keynesian models consider growth to be demand-led – a logical consequence of Keynes's principle of effective demand. After Harrod's seminal paper in 1939 Harrod, R. F. 1939. An essay in dynamic theory. Economic journal, 49, 14–33.[Crossref], [Web of Science ®] , [Google Scholar] they try to unearth the hidden variables that might allow the adaptation of the warranted rate, determined from the supply side, to demand-growth expectations that supposedly have an autonomous source. The purpose of this paper is to show that an investment function based on the accelerator and integrated in a supermultiplier is able to shape the warranted rate in consonance with the autonomous trend. The supermultiplier reveals itself as a stable and stabilising mechanism when demand is split into permanent and transient. Hopefully the paper will build bridges with other Keynesian, Kaleckian and Sraffian strands that have so far dismissed the supermultiplier solution because of its apparently inherent instability.     

On the short-run relationship between the income distribution-growth and debt-growth regimes

This paper examines the short-run relationship between the income distribution-growth and debt-growth regimes using a simple, post-Keynesian, demand-driven model. While mechanisms of wage-led and profit-led growth have been revealed, their relationship with debt-led and debt-burdened growth is yet to be clarified, because arguments on these growth regimes were developed separately. This paper shows that the growth regimes transform as the regime-switching parameters in the IS balance change. By way of theoretical analysis, this paper presents some important implications for (i) the possibility of the combination of growth regimes; (ii) the features of post-Keynesian economic analysis of income distribution, debt, and demand-led growth, which sharply contrast with the basic neo-classical theory; and (iii) theoretical validation of recent empirical results. Moreover, this paper also suggests some policy implications or lessons for the combination of economic growth regimes.