Is the Green Solow Model Valid for $$\hbox {CO}_{2}$$ Emissions in the European Union?

This paper addresses the \(\hbox {CO}_{2}\) emission patterns of the European Union from 1950 to 2010, and examines the validity of the Green Solow model, which simulates \(\hbox {CO}_{2}\) emissions growth by including only Solow forces and assuming emission intensity growth to be exogenous and constant. This study verifies that an environmental Kuznets curve (EKC) trajectory exists for per capita \(\hbox {CO}_{2}\) emissions in the European Union, that emission intensity growth is decreasing over time, and that the decreasing intensity growth reflects variations of the dependent variable in the specifications of the Green Solow model. The critique by Stefanski (On the mechanics of the Green Solow model. OxCarre Research Paper 47, OxCarre & Laval University, Oxford, 2013) of the Green Solow model assumption of exogenous and constant intensity growth is validated. The EKC is defined as the emissions plotted against income and emission intensity is defined as the ratio of emissions to income. The EKC and emission intensity share identical definitions and similar transition trajectories over time. The transition of the EKC trajectory and decline in emission intensity growth began before worldwide attention was focused on global warming.     

On the Robustness of Robustness Checks of the Environmental Kuznets Curve Hypothesis

Since its first inception in the debate on the relationship between environment and growth in 1992, the Environmental Kuznets Curve hypothesis (EKC hereafter) has been subject of continuous and intense scrutiny. The most recent line of investigation criticizes the EKC hypothesis on more fundamental grounds, in that it stresses the lack of sufficient statistical testing of the empirical relationship and questions the very existence of the notion of EKC. Attention is in particular drawn on the stationarity properties of the series involved—per capita emissions or concentrations and per capita GDP—and, in case of presence of unit roots, on the cointegration property that must be present for the EKC to be a well-defined concept. Only at that point can the researcher ask whether the long-run relationship exhibits an inverted-U pattern. On the basis of panel integration and cointegration tests for sulfur, Stern (2004) and Perman and Stern (1999, 2003) have presented evidence and forcefully stated that the EKC hypothesis does not exist. In this paper we ask whether similar strong conclusions can be arrived at when carrying out tests of system fractional integration and cointegration. As an example we use the controversial case of carbon dioxide emissions. The results show that more EKCs come back into life relative to traditional integration/cointegration tests. However, we confirm that the EKC hypothesis remains a fragile concept.      

Green technical innovation, environmental expenditure, and the environmental Kuznets curve： a dynamic s model

The relationship between the emission of pollutant and economic growth has attracted a lot of attention in the environmental debate of the recent decades. Based on some theoretical and empirical research on environmental Kuznets curve （EKC）, this paper introduces the environmental technical innovation and environmental investment into Salow growth model to discuss the relationship between GDP per capital and the emission of pollutant By the dynamic simulation and parameters analysis, the results of the model indicate： （1） when ＂green＂ technical progress and environmental investment are fixed, the relationship between GDP per capital and the emission shows the linear relationship; （2） ＂green＂ technical progress can lead to the positive growth rates with a decreasing level of emission, which is compatible with an EKC; （3） the proportion of the environmental investment can lead the different growth rates and level of emission. These results can explain that developing countries are ＂too poor to be green＂.     

On a clear day you might see an environmental Kuznets curve

We shed some new light on the Environmental Kuznets curve (EKC) and show how it can be viewed as a particular form of equilibrium relationship, where technology and preference parameters determine the shape of the curve. In contrast to most of the literature on the EKC, we estimate a theoretically consistent model on long-run data (Swedish sulfur emission, covering the period 1900–2002). Furthermore, we test and date structural change. The model suggests four regimes, 1900–1918, 1919–1933, 1934–1967 and 1968–2002, generating four rather different patterns for pollution over time. The policy-conclusions are consonant with Pearce’s general view about the EKC: there is no theoretical presumption that it has an inverted U shape, nor should any country try to “grow out of the environmental problems” without analyzing the benefits and costs of so doing.     

Trade Integration as a Mechanism of Financial Crisis Prevention

We have created an eclectic model that synthesizes the different versions of the third generation exchange rate crises models. This eclectic model takes current existing schemes beyond the traditional analyses—based on causes and consequences of external financial crises in emerging markets—and raises trade openness as an effective mechanism to prevent and avoid foreign debt crises and exchange rate crises. Our findings give theoretical support to empirical economic literature about this topic because, at the present time, most of the studies connecting international trade and financial crises are basically empirical.     

The Augmented Solow Model with Mincerian Schooling and Externalities

Abstract. We combine the augmented Solow model with the Mincer equation to derive a specification that identifies an education externality within a production function framework. The previous empirical literature has not reached a consensus about the size of the education externality, which is given by the difference between the microeconomic and the macroeconomic return to education. Relative to our benchmark value that is based on a parameterization of the derived specification, we find that the estimated education externality is too large when the empirical model is not properly restricted, and appears to be absent when all control variables of the empirical model are properly accounted for. We note that the absence of an education externality is difficult to reconcile with observed levels of education subsidies for efficiency reasons.     

Adding cycles into the neoclassical growth model

We propose a stochastic Solow growth model where a cyclical component is added to the total factor productivity process. Theoretically, an important feature of the model is that its main equation takes a state space representation where key parameters can be estimated via an unobserved component approach without involving capital stock measures. In addition, the dynamic properties of the model are mostly unaffected by the newly introduced cyclical component. Empirically, our novel framework is consistent with secular U.S. empirical evidence.     

Solving coordination failure with “all-or-none” group-level incentives

Coordinating activity among members is an important problem faced by organizations. When firms, or units within firms, are stuck in bad equilibria, managers may turn to the temporary use of simple incentives—flat punishments or rewards—in an attempt to transition the firm or unit to a more efficient equilibrium. We investigate the use of incentives in the context of the “minimum-effort,” or “weak-link,” coordination game. We allow groups to reach the inefficient equilibrium and then implement temporary, flat, “all-or-none” incentives to encourage coordination on more efficient equilibria. We vary whether incentives are positive (rewards) or negative (penalties), whether they have substantial or nominal monetary value, and whether they are targeted to a specific outcome (the efficient equilibrium) or untargeted (apply to more than one outcome). Overall, incentives of all kinds are effective at improving coordination while they are in place, but there is little long-term persistent benefit of incentives—once incentives are removed, groups tend to return to the inefficient outcome. We find some differences between different kinds of incentives. Finally, we contrast our results to other recent work demonstrating greater long-term effectiveness of temporary incentives.      

A Dynamic Model of the Environmental Kuznets Curve: Turning Point and Public Policy

We set up a simple dynamic macroeconomic model with (i) polluting consumption and a preference for a clean environment, (ii) increasing returns in abatement giving rise to an EKC and (iii) sustained growth resulting from a linear final-output technology. There are two sorts of market failures caused by external effects associated with consumption and environmental effort. The model is employed to investigate the determinants of the turning point and the cost effectiveness of different public policies aimed at a reduction of the environmental burden. Moreover, the model offers a potential explanation of an N-shaped pollution–income relation. It is shown that the model is compatible with most empirical regularities on economic growth and the environment.      

Progress along the path: evolving issues in the measurement of genuine saving

More than 10 years since a practical linkage between sustainable development and a measure of national wealth—expanded to include natural and environmental resources—was first posited, the empirical estimation of adjusted net savings, dubbed ‘genuine’ saving, has evolved considerably. In this paper we take stock of both progress achieved and the challenges that remain. We begin by recalling the key points made in Pearce and Atkinson (1993, Ecol Econ 8, 103), which presented the first cross-country estimates of savings rates adjusted to reflect depletion and degradation of the environment. We then briefly summarise the evolution of the theoretical argument linking savings and sustainability. However, the main focus of this paper is an aspect that concerned David Pearce greatly, namely the evolution of the measurement of genuine savings. We identify and consider the empirical evidence with regard to two particular measurement issues: the valuation of exhaustible resources and environmental degradation. Common to the both issues are concerns about measuring changes in national wealth in real world economies.      

The Environmental Kuznets Curve and Flow versus Stock Pollution: The Neglect of Future Damages

In this paper we offer a possible explanation for the empirical finding that the pollution-income relationship (PIR) for flow pollutants is an environmental Kuznets curve (EKC), i.e. inverted-U shaped, but that the PIR for stock pollutants is monotonically rising. We analyse an overlapping generations model with two pollutants: The flow pollutant causes immediate damages, but the stock pollutant harms the environment only in the future. Hence, a succession of myopic governments lets stock pollution grow with income. In contrast, the flow pollutant follows an EKC whose downturn might be caused by the neglect of future damages and by ever rising stock pollution: Without the stock pollutant the PIR for the flow pollutant can increase monotonically. We also show that the turning point of the EKC for the flow pollutant lies at lower levels of income and of flow pollution if stock pollution is high and harmful. This casts doubts on most empirical EKC studies because they assume that the turning point occurs at the same income level in all countries. However, it is consistent with recent empirical findings that the income level at the turning point of the EKC varies across countries.     

Conditional convergence and the dynamics of the capital-output ratio

Output per worker can be expressed as a function of technological efficiency and of the capital-output ratio. Because technology is exogenous in the Solow model, all of the endogenous convergence dynamics take place through the adjustment of the capital-output ratio. This paper uses the empirical behavior of the capital-output ratio to estimate the speed of conditional convergence of economies towards their steady-state paths. We find that the conditional convergence speed is about seven percent per year. This is somewhat faster than predicted by the Solow model and is significantly higher than reported in most previous studies based on output per worker regressions. We show that, once there are stochastic shocks to technology, standard panel econometric techniques produce downward-biased estimates of convergence speeds, while our approach does not. The views expressed in this paper are our own, and do not necessarily reflect the views of the Central Bank and Financial Services Authority of Ireland or the ESCB.     

On a Uniform Turnpike of the Third Kind in the Robinson-Solow-Srinivasan Model

On using McKenzie's taxonomy of optimal accumulation in the long-run, we report a ``uniform turnpike' theorem of the third kind in a model original to Robinson, Solow and Srinivasan (RSS), and further studied by Stiglitz. Our results are presented in the undiscounted, discrete-time setting emphasized in the recent work of Khan-Mitra, and they rely on the importance of either a strictly concave felicity function, or on the value of a ``marginal rate of transformation', ξσ, from one period to the next not being unity. We argue that our results, when viewed through the lens of turnpike theory, have a broader relevance to intertemporal optimization theory, as developed in economics by Ramsey, von Neumann and their followers.      

The role of public policy in closing foreign direct investment gaps: an empirical analysis

Using public policy instruments to attract Foreign Direct Investment (FDI) has become standard in most countries, irrespective of their level of development, geographical location or industrial structure. Against this background the paper analyses the suitability of various public policies to attract inward FDI based on a sample of 11 countries and 10 industries from the manufacturing sector over 10 years. For this aim we derive an empirical baseline model of the determinants of inward FDI-stock. From this baseline model FDI-gaps—measured as the difference between the “estimated actual” inward FDI-stock and the “potential” FDI-stock, which could be realized if a certain “best practice policy” were carried out—are derived. Thereby the analysis focuses on business taxation, public research and development expenditures, the information and communication infrastructure endowment, labor costs as well as institutional and skill-related policies. The analysis inter alia reveals the share of each of these location factors in the total industry- and country-level FDI-gap. Moreover, the analysis explores how policy advice depends on the definition of the “best practice policy”.     

The local Solow growth model

This paper generalizes the empirical analysis of the Solow growth model to account for country-specific heterogeneity. This generalization relaxes the assumption made in bulk of empirical growth studies that all countries possess identical aggregate production functions. Our empirical results indicate that there is substantial country-specific heterogeneity in the Solow parameters-heterogeneity that is associated with differences in initial income. We therefore conclude that the explanatory value of the Solow growth model is substantially enhanced by allowing for country-specific, i.e. local, production functions.     

A contribution to the theory and empirics of Schumpeterian growth with worldwide interactions

This paper proposes an integrated theoretical and methodological framework characterized by technological interactions to explain growth processes from a Schumpeterian perspective. Global interdependence implied by international R&D spillovers needs to be taken into account in both the theoretical and empirical models. For this task, spatial econometrics is the appropriate tool. The econometric model we propose includes the neoclassical growth model as a particular case. We can therefore explicitly test the role of R&D investment in the long-run growth process against the Solow growth model. Finally, the properties of our spatial econometric specification allow the explicit evaluation of the impact of home and foreign R&D spillovers.     

On locally optimal programs in the Robinson–Solow–Srinivasan model

In the context of a model due to Robinson, Solow and Srinivasan (the RSS model), we report results on the existence and characterization of locally optimal programs, a concept taken from theoretical physics. In particular, we propose a (new) transversality condition under which all locally optimal programs are good. An extended introduction places our theorems in the context of previous work on the existence question, including that on agreeable programs. It appears that there is no completely rational way to attack [the] problem without considering development programmes over an infinite horizon (Gale in Rev Econ Stud 34:1–8, 1967). The analysis of simple models is essential if we are to understand the corresponding situation for more complex models of the economy (Mirrlees and Stern in J Econ Theory 4:268–288, 1972). The technical convenience, for clear and quantitative results, of using an infinite time horizon is rather great (Hammond and Mirrlees in Models of economic growth, Wiley, New York, pp 283–299, 1973).     

Benefit Transfer Equivalence Tests with Non-normal Distributions

Equivalence testing reverses traditional null and alternative hypotheses—welfare estimates are assumed different unless tests demonstrate that the difference is smaller than a specified tolerance limit. Within benefit transfer, researchers have universally used the “two one-sided t-test” (TOST) equivalence test, an approach that is invalid for non-normal welfare distributions. This paper proposes an alternative based on the difference between independent empirical distributions, denoted the “two one-sided convolutions” (TOSC) test. The TOSC permits valid inference for non-normal distributions. Empirical assessments show large divergences between TOST and TOSC p-values when distributions are non-normal—demonstrating the likelihood of erroneous inference under the TOST.     

Can the augmented Solow model explain China’s remarkable economic growth? A cross-country panel data analysis

China’s economy grew at an average annual rate of 9% over the last three decades. Despite the vast empirical literature on testing the neoclassical model of economic growth using data on various groups of countries, very few cross-country regressions include China and none of them particularly focuses on the explanation of China’s remarkable economic growth. We attempt to fill this gap by utilising panel data on 146 countries over the period 1980–2004 to examine the extent to which the rapid growth of China and the huge gap in the growth rate between China and other countries can be explained by the augmented Solow model. Using system GMM estimation techniques, we find that, in spite of the restrictive assumptions involved, the Solow model augmented by both human capital and structural change provides a fairly good account of international variation in economic growth. In particular, China’s relative success in economic growth is due to high physical capital investment, conditional convergence gain, dramatic changes in the structure of employment and output, and low population growth.