Research Topics

This study aims to develop an ecological stock-flow consistent (SFC) model based on the Latin American–stylized facts regarding economic, financial, and environmental features. We combine the macro-financial theoretical framework by Pérez-Caldentey et al. (2021, 2023) and the ecological modeling of Carnevali et al. (2020) and Dafermos et al. (2018). We discuss two scenarios that test exogenous climate-related shocks. The first scenario presents the case in which international regulation on commodity trade becomes more stringent due to environmental concerns, thus worsening the balance-of-payment constraint of the region. The second scenario concerns the increase in frequency and intensity of adverse climate events in the region. Both scenarios show that the financial external constraint that determines the growth path of Latin American economies may be further exacerbated due to environmental-related issues.

Starting from the seminal works of Wynne Godley (1999; Godley and Lavoie 2005, 2007a, 2007b), the literature adopting stock-flow consistent (SFC) models for two or more countries has been flourishing, showing that consistently taking into account real and financial markets of two open economies will generate different results with respect to more traditional open economy models. However, few contributions, if any, have modeled two regions in the same country, and our paper aims at filling this gap. When considering a regional context, most of the adjustment mechanisms at work in open economy models—such as exchange rate movements, or changes in interest on public debt—are simply not present, as they are controlled by "external” authorities. So, what are the adjustment mechanisms at work?
 
To answer this question, we adapt the framework suggested in Godley and Lavoie (2007a) to consider two regions that share the same monetary, fiscal, and exchange rate policies. We loosely calibrate our model to Italian data, where the South (Mezzogiorno) has both a lower level of real income per capita and a lower growth rate than the North. We also introduce a fragmented labor market, as discouraged workers in the South will move North in hopes of finding commuting jobs.
 
Our model replicates some key features of the Italian economy and sheds light on the interactions between financial and real markets in regional economies with “current account” imbalances.

The Economic Implications of the Pandemic

The spread of the new coronavirus (COVID-19) is a major shock for the US and global economies. Research Scholar Michalis Nikiforos explains that we cannot fully understand the economic implications of the pandemic without reference to two Minskyan processes at play in the US economy: the growing divergence of stock market prices from output prices, and the increasing fragility in corporate balance sheets.

The pandemic did not arrive in the context of an otherwise healthy US economy—the demand and supply dimensions of the shock have aggravated an inevitable adjustment process. Using a Minskyan framework, we can understand how the current economic weakness can be perpetuated through feedback effects between flows of demand and supply and their balance sheet impacts.

This paper extends the empirical stock-flow consistent (SFC) literature through the introduction of distributional features and labor market institutions in a Godley-type empirical SFC model. In particular, labor market institutions, such as the minimum wage and the collective bargaining coverage rate, are considered as determinants of the wage share and, in turn, of the distribution of national income. Thereby, the model is able to examine both the medium-term stability conditions of the economy via the evolution of the sectoral financial balances and the implications of functional income distribution on the growth prospects of the economy at hand. The model is then applied to the Greek economy. The empirical results indicate that the Greek economy has a significant structural competitiveness deficit, while the institutional regime is likely debt-led. The policies implemented in the context of the economic adjustment programs were highly inappropriate, triggering private sector insolvency. A minimum wage increase is projected to have a positive impact on output growth and employment. However, policies that would enhance the productive sector’s structural competitiveness are required in order to ensure the growth prospects of the Greek economy.

Ever since the Great Recession, central banks have supplemented their traditional policy tool of setting the short-term interest rate with massive buyouts of assets to extend lines of credit and jolt flagging demand. As with many new policies, there have been a range of reactions from economists, with some extolling quantitative easing’s expansionary virtues and others fearing it might invariably lead to overvaluation of assets, instigating economic instability and bubble behavior. To investigate these theories, we combine elements of the models in chapters 5, 10, and 11 of Godley and Lavoie’s (2007) Monetary Economics with equations for quantitative easing and endogenous bubbles in a new model. By running the model under a variety of parameters, we study the causal links between quantitative easing, asset overvaluation, and macroeconomic performance. Preliminary results suggest that rather than being pro- or countercyclical, quantitative easing acts as a sort of phase shift with respect to time.
 

A Survey

The stock-flow consistent (SFC) modeling approach, grounded in the pioneering work of Wynne Godley and James Tobin in the 1970s, has been adopted by a growing number of researchers in macroeconomics, especially after the publication of Godley and Lavoie (2007), which provided a general framework for the analysis of whole economic systems, and the recognition that macroeconomic models integrating real markets with flow-of-funds analysis had been particularly successful in predicting the Great Recession of 2007–9. We introduce the general features of the SFC approach for a closed economy, showing how the core model has been extended to address issues such as financialization and income distribution. We next discuss the implications of the approach for models of open economies and compare the methodologies adopted in developing SFC empirical models for whole countries. We review the contributions where the SFC approach is being adopted as the macroeconomic closure of microeconomic agent-based models, and how the SFC approach is at the core of new research in ecological macroeconomics. Finally, we discuss the appropriateness of the name “stock-flow consistent” for the class of models we survey.