Sraffa in historiographical perspective: a provisional statement

The paper explores the theory of the aggregate price, profit, and business fluctuations in Keyne's Treatise for its implications for modern macro-economic analysis. As in the Treatise, profits are first defined within a theory of the agregate price level, as aggregate investment minus saving. Deriving aggregate total revenue and aggregate total cost from this price theory, the paper shows how to construct a version of the Keynesian cross diagram. The cross construction suggests an important qualification for fiscal policy, that total cost does not shift. Then, using a neoclassical definition of profit and the total-cost / total-revenue approach, the paper derives aggregate supply, and then adds aggregate demand in an integrated framework. Comparative statics of the AS-AD analysis and the central role of profit in the Treatise suggest that a focus on profit might be useful in identifying exogenous technology shocks of real business cycle theory.     

Lost in transition: the costs and consequences of sectoral labour adjustment

Abstract This paper uses an equilibrium search and matching model to study Canada’s sectoral labour adjustment in 2002–2006 during an increase in global commodity prices and exchange rate appreciation. I estimate economically significant adjustment costs for the aggregate economy in this episode and demonstrate that difficulty in transferring skills between jobs for individual workers can be an important contributor to these aggregate costs. The analysis also demonstrates that the level of unemployment benefits impacts the economy’s sectoral composition, its aggregate productivity, and the speed of its adjustment to shocks.     

Uncertainty and the Voluntary Provision of a Pure Public Good in a Two‐Moment Decision Model

In this paper, we explore the potential benefits of uncertainty that may arise in a two‐moment model of the voluntary provision of a pure public good. We find that an increase in a given contributor i’s risk associated with the aggregate contribution level of the other contributors (i.e., an increase in social uncertainty) induces that contributor to increase his own contribution level if and only if the uncertainty's incremental effect on the expected value of his net marginal utility is negative. Contributor i’s welfare likewise increases when a closely related condition is met, namely that the uncertainty's marginal effect on his expected marginal utility value of the public good exceeds its countervailing effect on the numeraire. Further, the corresponding aggregate contribution to the public good increases in the presence of free‐riding if and only if the incremental effect of contributor i’s contribution on the aggregate expected value of all other contributors’ net marginal utilities is small‐enough positive. We derive similar conditions for the case of private uncertainty, where the increase in contributor i’s risk is associated with his own marginal valuation of the public good. A simple example illustrates these conceptual results. Numerical analysis demonstrates that an increase in private uncertainty can have a nonmonotonic impact on contributor i’s welfare.     

An Evaluation of Unemployment Policy in Australia Using the Range of Equilibria

The major failures of macroeconomic policy in the last 40 years are the huge increases in unemployment and inflation in the 1970s and the persistence for 25 years of the former. This article uses econometric estimates of a model of the range of equilibria for Australia for the period 1965:4 to 2003:3 to evaluate the role of macroeconomic policies in these failures. Our analysis distinguishes the roles of aggregate supply policies and aggregate demand policies. We conclude from our analysis that macroeconomic outcomes would have been better over this period had monetary policy been guided by a hierarchical inflation target, which is to be set so as to achieve the highest level of activity subject to satisfying the inflation target.     

The Spending Multiplier in the Medium Run

Most of the discussion about fiscal stimulus focuses on the multiplier of government spending on impact. In this paper we shift the focus to the multiplier at the end, i.e., to the period in which a deficit spending program terminates. We show that recent time‐series analyses and neoclassical as well new Keynesian business cycle models predict that the multiplier turns negative before spending expires. This means that aggregate output at the time of expiry of fiscal stimulus is lower than it could be without deficit spending. Here, we show why this phenomenon is a general outcome of mainstream business cycle theory and explain the underlying mechanism. Using phase diagram analysis, we prove that the aggregate capital stock at the time of expiry of fiscal stimulus is lower than it would be without a deficit spending program. This fact explains why aggregate output is below its laissez faire level as well.     

WHAT HAS BEEN HAPPENING TO AGGREGATE CONCENTRATION IN THE U.S. ECONOMY IN THE TWENTY‐FIRST CENTURY?

This paper extends earlier data series on aggregate concentration in the U.S. economy—the percentage of aggregate economic activity that could be attributed to the largest “X” companies—into the first two decades of the twenty‐first century. We find that there has been a moderate but continued increase in aggregate concentration since the mid‐1990s. This increase appears in data on employment and payrolls that have been compiled by the U.S. Bureau of the Census, as well as employment and profits data that are drawn from the annual “Fortune 500” lists. This increase does not, however, appear to have raised aggregate concentration above the levels of the early 1980s. (JEL L10, L11, L19)     

Explaining the aggregate price level with Keynes's principle of effective demand

The mainstream view of Keynes's principle of effective demand is that it states something about quantities—and about quantities only. The principle is held to determine the levels of output and employment in a world not governed by Say's law. This paper argues that the principle of effective demand goes beyond this to explain not only ‘real’ activity levels but also the aggregate price level. A variant of the post-Keynesian D/Z-model is brought together with Marxian reproduction schemes to derive this result.     

Incomplete Markets, Transitory Shocks, and Welfare

Although equilibrium allocations in models with incomplete markets are generally not Pareto-efficient, it is often argued that quantitative welfare losses from missing assets are small when time horizons are long and shocks are transitory. In this paper we use a computational analysis to show that even in the simplest infinite horizon model without aggregate uncertainty welfare losses can be substantial. Furthermore we show that in this model welfare losses from incomplete markets do not necessarily disappear when one considers calibrations of the model in which agents become very patient. We argue that when the economic model is calibrated to higher frequency data, the period persistence of negative income shocks must increase as well. In this case the welfare loss of incomplete markets remains constant even as agents' rate of time preference tends to one. Journal of Economic Literature Classification Numbers: D52, D58, D60.     

A Short-Run Employment Function for Australia: 1911–12 to 1938–39

This paper develops a short-run employment function model in which the speed of adjustment is positively related to the level of unemployment. The model is fitted to aggregate Australian data for the period 1911–12 to 1938–39, a period which includes the high unemployment years of the 1930s. Full information maximum-likelihood estimation procedures are used and a log-likelihood ratio test indicates that the variable speed of adjustment model is to be preferred to a fixed adjustment speed model. The speed of adjustment was quite sensitive to the unemployment rate. The policy conclusion of the paper is that if Australian unemployment rates rise to levels that are unprecedented in the post-war period, firms may shake out surplus labour at a surprisingly fast rate.     

Joan Robinson and the three cambridge revolutions

Joan Robinson's association with three Cambridge ‘revolutions’—imperfect competition, effective demand and capital theory—is examined in the context of her personal and intellectual partnership with Richard Kahn, John Maynard Keynes and Piero Sraffa. Initially, imperfect competition appeared to have successfully extended marginal analysis to all market forms. It also allowed Richard Kahn and Joan Robinson to persuade Keynes to present the main argument of The General Theory in terms of aggregate demand and aggregate supply. By the early 1950s, however, Joan Robinson had rejected the Marshallian methodology and had become a strenuous censor of neoclassical theory. In this paper the origin of her critique is traced to her reading of Sraffa's Introduction to Ricardo's Principles.     

Turkey’s employment subsidy program under the great recession: a general equilibrium assessment

The objective of this paper is to provide an impact analysis of the macroeconomic consequences of the employment subsidization programs in Turkey implemented under the post-2008 crisis period. To this end, an applied general equilibrium model (of the computable general equilibrium – CGE variety) is utilized to investigate the production, incomes generation, and aggregate demand components of the domestic economy. The analysis highlights the rather limited returns to the subsidization package, and argues that much of this was due to the dis-equilibriating and fragile macroeconomic environment under the neoliberal policy framework. The massive drop of domestic savings; a severe mis-alignment in the real exchange rate causing significant appreciation of the domestic currency; rise of the external deficit and of foreign indebtedness along with a severe fall in the total productivity effort were different facets of this poor macroeconomic performance. Thus, an important message of the study is that, had the macroeconomic balances were maintained at their historical averages, and a more competitive exchange rate could have been pursued, as much as threefolds of a gain in aggregate employment could have been generated with the same intensity of the employment subsidization package, in comparison to the historically realized levels.     

Impact of state-dependent oil price on US stock returns using local projections

In this paper, we investigate the impact of oil prices on both aggregate and industry US real stock returns over the period 1973–2017. The empirical analysis contributes to the related literature introducing a state-dependent oil price (high and low) and the local projections approach. Our main finding is that, depending on the nature of the shock and industry, the negative effects of oil price shocks become exacerbated -and the positive effects get moderated- if oil prices are already high.     

Products and Productivity*

When firms make decisions about which product to manufacture at a more disaggregated level than observed in the data, measured firm productivity reflects both characteristics of the firm and attributes of the products that are non‐randomly chosen by the firm. This paper develops a model of industry equilibrium in which firms endogenously sort across products and characterizes the resulting bias in measured firm and aggregate productivity. Calibrating the model's parameters, we show that endogenous product selection can have quantitatively important effects on measured firm and aggregate productivity and their response to changes in parameter values.     

British regional growth and sectoral trends: global and local spatial econometric approaches

This article looks beneath the surface of British sub-regional aggregate Gross Value Added (GVA) growth over the period 1995 to 2007, by examining how the differing growth dynamics of the secondary and services sectors have influenced the overall regional growth process. A spatial econometric analysis is undertaken which tests regional secondary and services real GVA per capita for absolute and conditional convergence at the NUTS 3 level. Both local and global spatial analysis techniques are utilized in order to gain a detailed insight into the growth process over the period 1995 to 2007.     

Assessing the role of aggregate demand and supply shocks in China’s macroeconomic fluctuation

The combination of a high growth rate and low information has been observed since the late 1990s in the Chinese economy. Should the fact be considered as a result of greatly improved supply capability or should the fact reflect the improvement in the government’s aggregate demand management? In this paper, we try to assess the role of aggregate demand and supply shocks in China’s macroeconomic fluctuation. We use a bivariate structural VAR model to investigate macroeconomic dynamics for China within the aggregate-demand and aggregate-supply framework, using the quarterly data in the period of 1996Q1–2005Q4. Our principal findings are following: (1) China’s high growth shall be associated more with greatly improved supply capability, especially after its WTO entrance. The expansionary aggregate demand policies may have limited effects to raise the growth rate in the post-1996 in China. This result suggests that we need a more pro-growth policy stance in order to maintain a high and stable growth. (2) The low inflation in that period is driven primarily by weak aggregate demand rather than supply factors.     

Moral hazard and general equilibrium in large economies

Summary. The paper analyzes a two period general equilibrium model with individual risk, aggregate uncertainty and moral hazard. There is a large number of households, each facing two individual states of nature in the second period. These states differ solely in the household's vector of initial endowments, which is strictly larger in the first state (good state) than in the second state (bad state). In the first period each household chooses a non-observable action. Higher levels of action give higher probability of the good state of nature to occur, but lower levels of utility. Households' utilities are assumed to be separable in action and the aggregate uncertainty is independent of the individual risk. Insurance is supplied by a collection of firms who behave strategically and maximize expected profits taking into account that each household's optimal choice of action is a function of the offered contract. The paper provides sufficient conditions for the existence of equilibrium and shows that the appropriate versions of both welfare theorems hold. Received: December 7, 1998; revised version: October 25, 1999     

Structural change in Finnish manufacturing: The theory of the aggregation of production functions and an empirical analysis with a plant-level panel

In this paper, structural change in the Finnish manufacturing industries is studied using the theory of the aggregation of production functions and longitudinal plant-level data for the period from 1980 to 2005. To characterise the nature of structural change in 12 industries, we examine the invariance of aggregate production functions over time. Aggregate production functions need not be estimated because, according to the theory of the aggregation of production functions, the invariance can be analysed by investigating the stability of capacity density functions, which describe the distribution of value added in these industries. Even though the shapes of aggregate production functions alter over time in most industries, there are differences in timing and in the degree of turbulence across industries. The analysis confirms that in some industries (e.g., the paper industry) the late 1980s marked the beginning of a period of relatively strong structural change. The food and communications equipment manufacturing industries are examples of industries for which the 1990s was a period of turbulence.     

Is there evidence of creative destruction in the Turkish manufacturing sector? Lessons from a cross-industry analysis of aggregate productivity growth

This paper examines the Schumpeterian creative destruction process by decomposing and analysing aggregate industry-level productivity growth in three Turkish manufacturing industries. The results are somewhat supportive of the Schumpeterian hypothesis given that the productivity effects within plants contributed the most to the aggregate level productivity growth. However, the results generally contradict the insight that plants entering the market have higher productivity than plants that exit the market. This supports Caballero and Hammour's (NBER Working Paper No. 7720, 2000) arguments that institutional and market constraints may interfere with the proper functioning of Schumpeter's creative destruction process.     

The optimality of nominal contracts

Summary. This paper presents a model in which agents choose to use money as a medium of exchange, a means of payment, and a unit of account. The paper defines conditions under which nominal contracts, promising future payment of a fixed number of units of fiat money, prove to be the optimal contract form in the presence of either relative or aggregate price risk. When relative prices are random, nominal contracts are optimal if individuals have ex ante similar preferences over future consumption. When the aggregate price level is random, whether from shocks to the money supply or aggregate output, nominal contracts (perhaps coupled with equity contracts) lead to optimal risk-sharing if individuals have the same degree of relative risk aversion. Finally, nominal contracts may be optimal if the repayment of contracts is subject to a binding cash-in-advance constraint. In this case, a contingent contract increases the risk of holding excessive cash balances. Received: March 29, 1996; revised version: February 25, 1997     

Note on Longevity and Aggregate Savings

In a recent paper in this journal, Bloom, Canning and Graham (2003) model the effect of changes in longevity on individual savings. They proceed to present empirical findings about the relation between longevity and aggregate savings. There is a missing link between their empirics and theory: the changes in the populations age density distribution due to increased longevity. This note provides such an aggregation analysis within a simple model with uncertain survival, endogenous life‐cycle consumption and retirement age. It is shown that, with continuous annuitization, an increase in expected longevity raises aggregate steady‐state savings. The magnitude of this effect depends on the economy's age‐specific distribution and on the elasticity of optimum retirement to changes in longevity.