Explorations in Theory and Empirical Analysis
On occasion, scholars at the Levy Institute conduct research that does not fall within a current program or general topic area. Such study might include examination of a subject of particular policy interest, empirical research that has grown out of work in a current program area, or initial exploration in an area being considered for a new research program. Recent studies have included those on Harrodian growth models, the economic consequences of German reunification, and campaign finance reform.
Working Paper No. 854 | November 2015
Graph Theory and Macroeconomic Regimes in Stock-flow Consistent Modeling
Standard presentations of stock-flow consistent modeling use specific Post Keynesian closures, even though a given stock-flow accounting structure supports various different economic dynamics. In this paper we separate the dynamic closure from the accounting constraints and cast the latter in the language of graph theory. The graph formulation provides (1) a representation of an economy as a collection of cash flows on a network and (2) a collection of algebraic techniques to identify independent versus dependent cash-flow variables and solve the accounting constraints. The separation into independent and dependent variables is not unique, and we argue that each such separation can be interpreted as an institutional structure or policy regime. Questions about macroeconomic regime change can thus be addressed within this framework.
We illustrate the graph tools through application of the simple stock-flow consistent model, or “SIM model,” found in Godley and Lavoie (2007). In this model there are eight different possible dynamic closures of the same underlying accounting structure. We classify the possible closures and discuss three of them in detail: the “standard” Godley–Lavoie closure, where government spending is the key policy lever; an “austerity” regime, where government spending adjusts to taxes that depend on private sector decisions; and a “colonial” regime, which is driven by taxation.Download:Associated Program(s):Author(s):Miguel Carrión Álvarez Dirk EhntsRelated Topic(s):
Working Paper No. 846 | October 2015
Steindl after Summers
The current debate on secular stagnation is suffering from some vagueness and several shortcomings. The same is true for the economic policy implications. Therefore, we provide an alternative view on stagnation tendencies based on Josef Steindl’s contributions. In particular, Steindl (1952) can be viewed as a pioneering work in the area of stagnation in modern capitalism. We hold that this work is not prone to the problems detected in the current debate on secular stagnation: It does not rely on the dubious notion of an equilibrium real interest rate as the equilibrating force of saving and investment at full employment levels, in principle, with the adjustment process currently blocked by the unfeasibility of a very low or even negative equilibrium rate. It is based on the notion that modern capitalist economies are facing aggregate demand constraints, and that saving adjusts to investment through income growth and changes in capacity utilization in the long run. It allows for potential growth to become endogenous to actual demand-driven growth. And it seriously considers the role of institutions and power relationships for long-run growth—and for stagnation.Download:Associated Program(s):Author(s):Related Topic(s):
Working Paper No. 841 | July 2015
Marx’s theory of money is critiqued relative to the advent of fiat and electronic currencies and the development of financial markets. Specific topics of concern include (1) today’s identity of the money commodity, (2) possible heterogeneity of the money commodity, (3) the categories of land and rent as they pertain to the financial economy, (4) valuation of derivative securities, and (5) strategies for modeling, predicting, and controlling production and exchange of the money commodity and their interface with the real economy.Download:Associated Program:Author(s):Related Topic(s):
Working Paper No. 836 | April 2015
This paper evaluates the presence of heterogeneity, by household type, in the elasticity of substitution between food expenditures and time and in the goods intensity parameter in the household food and eating production functions. We use a synthetic dataset constructed by statistically matching the American Time Use Survey and the Consumer Expenditure Survey. We establish the presence of heterogeneity in the elasticity of substitution and in the intensity parameter. We find that the elasticity of substitution is low for all household types.Download:Associated Program:Author(s):Related Topic(s):
Working Paper No. 824 | January 2015
A New Framework for Envisioning and Evaluating a Mission-oriented Public Sector
Today, countries around the world are seeking “smart” innovation-led growth, and hoping that this growth is also more “inclusive” and “sustainable” than in the past. This paper argues that such a feat requires rethinking the role of government and public policy in the economy—not only funding the “rate” of innovation, but also envisioning its “direction.” It requires a new justification of government intervention that goes beyond the usual one of “fixing market failures.” It also requires the shaping and creating of markets. And to render such growth more “inclusive,” it requires attention to the ensuing distribution of “risks and rewards.”
To approach the innovation challenge of the future, we must redirect the discussion, away from the worry about “picking winners” and “crowding out” toward four key questions for the future:
Download:Associated Program(s):Author(s):Mariana MazzucatoRelated Topic(s):
- Directions: how can public policy be understood in terms of setting the direction and route of change; that is, shaping and creating markets rather than just fixing them? What can be learned from the ways in which directions were set in the past, and how can we stimulate more democratic debate about such directionality?
- Evaluation: how can an alternative conceptualization of the role of the public sector in the economy (alternative to MFT) translate into new indicators and assessment tools for evaluating public policies beyond the microeconomic cost/benefit analysis? How does this alter the crowding in/out narrative?
- Organizational change: how should public organizations be structured so they accommodate the risk-taking and explorative capacity, and the capabilities needed to envision and manage contemporary challenges?
- Risks and Rewards: how can this alternative conceptualization be implemented so that it frames investment tools so that they not only socialize risk, but also have the potential to socialize the rewards that enable “smart growth” to also be “inclusive growth”?
Working Paper No. 823 | December 2014
A Sympathetic Critique
This paper starts with a review of the literature about National Systems of Innovation (NSI), by linking the origin of the concept to the evolutionary theory of the firm and innovation. The first point reviews the flaws of the NSI concept by looking at the pioneering works of Chris Freeman, Bent-Åke Lundvall, and Richard Nelson. These authors’ definitions of NSI contain some striking aspects: (1) the definitions are so broad that they can encompass almost everything; (2) although all definitions share the central role played by institutions, the state and its policy are not explicitly mentioned; and (3) it is not clear if the NSI concept is a descriptive or a normative tool. The second point we would like to make is that, when the role of the financial system was finally recognized by evolutionary traditions, it was just added as a “new” element within the NSI. The main aim became one of including the financial system within the NSI and looking for the “right” financial system for the “right” type of innovation. After addressing the weaknesses of the conceptualization of the state within the NSI and the difficulty of the evolutionary theory in understanding the financialization of the economy, our third and last point refers to a new way to view innovations. As Mariana Mazzuccato shows, the state has always been a fundamental, though indirect, actor for the development of certain innovations in certain sectors. Yet this is not enough, especially in a period of crisis. The state should direct innovative activities toward more basic and social needs, thus becoming an “innovator of first resort.”Download:Associated Program:Author(s):Giovanna VertovaRelated Topic(s):
Working Paper No. 811 | July 2014
An Evaluation Using the Maximum Entropy Bootstrap Method
This paper challenges two clichés that have dominated the macroeconometric debates in India. One relates to the neoclassical view that deficits are detrimental to growth, as they increase the rate of interest, and in turn displace the interest-rate-sensitive components of private investment. The second relates to the assumption of “stationarity”—which has dominated the statistical inference in time-series econometrics for a long time—as well as the emphasis on unit root–type testing, which involves detrending, or differencing, of the series to achieve stationarity in time-series econometric models. The paper examines the determinants of rates of interest in India for the periods 1980–81 and 2011–12, using the maximum entropy bootstrap (Meboot) methodology proposed in Vinod 1985 and 2004 (and developed extensively in Vinod 2006, Vinod and Lopez-de-Lacalle 2009, and Vinod 2010 and 2013). The practical appeal of Meboot is that it does not necessitate all pretests, such as structural change and unit root–type testing, which involve detrending the series to achieve stationarity, which in turn is problematic for evolutionary short time series. It also solves problems related to situations where stationarity assumptions are difficult to verify—for instance, in mixtures of I(0) and nonstationary I(d) series, where the order of integration can be different for different series.
What makes Meboot compelling for Indian data on interest rates? Prior to interest rate deregulation in 1992, studies to analyze the determinants of interest rates were rare in India. Analytical and econometric limitations to dealing with the nonvarying administered rates for a meaningful time-series analysis have been the oft-cited reason. Using high-frequency data, the existing attempts have focused on the recent financially deregulated interest rate regime to establish possible links between interest rates and macroeconomic variables (Chakraborty 2002 and 2012, Dua and Pandit 2002, and Goyal 2004). The results from the Meboot analysis revealed that, contrary to popular belief, the fiscal deficit is not significant for interest rate determination in India. This is in alignment with the existing empirical findings, where it was established that the interest rate is affected by changes in the reserve currency, expected inflation, and volatility in capital flows, but not by the fiscal deficit. This result has significant policy implications for interest rate determination in India, especially since the central bank has cited the high fiscal deficit as one of the prime constraints for flexibility in fixing the rates.Download:Associated Program:Author(s):Hrishikesh Vinod Lekha S. Chakraborty Honey KarunRelated Topic(s):
Working Paper No. 809 | June 2014
Work and life satisfaction depends on a number of pecuniary and nonpecuniary factors at the workplace and determines these in turn. We analyze these causal linkages using a structural vector autoregression approach for a sample of the German working populace collected from 1984 to 2008, finding that workplace autonomy plays an important causal role in determining well-being.Download:Associated Program:Author(s):Alex Coad Martin BinderRelated Topic(s):
Working Paper No. 808 | June 2014
A Quantile Approach
Unemployment has been robustly shown to strongly decrease subjective well-being (or “happiness”). In the present paper, we use panel quantile regression techniques in order to analyze to what extent the negative impact of unemployment varies along the subjective well-being distribution. In our analysis of British Household Panel Survey data (1996–2008) we find that, over the quantiles of our subjective well-being variable, individuals with high well-being suffer less from becoming unemployed. A similar but stronger effect of unemployment is found for a broad mental well-being variable (GHQ-12). For happy and mentally stable individuals, it seems their higher well-being acts like a safety net when they become unemployed. We explore these findings by examining the heterogeneous unemployment effects over the quantiles of satisfaction with various life domains.Download:Associated Program:Author(s):Martin Binder Alex CoadRelated Topic(s):
Working Paper No. 807 | June 2014
Recent research stresses the macroeconomic dimension of income distribution, but no theory has yet emerged. In this note, we introduce factor shares into popular growth models to gain insights into the macroeconomic effects of income distribution. The cost of modifying existing models is low compared to the benefits. We find, analytically, that (1) the multiplier is equal to the inverse of the labor share and is about 1.4; (2) income distribution matters mostly in the medium run; (3) output is wage led in the short run, i.e., as long as unemployment persists; (4) capacity expansion is profit led in the full-employment long run, but this is temporary and unstable.Download:Associated Program:Author(s):Related Topic(s):