Estimates of optimal public capital stocks in Japan using a public investment discount rate framework

The purpose of this paper is to empirically assess the optimality of the level of public capital in Japan. We use a methodological approach based on Burgess's (1988) procedure for calculating the public discount rate. This approach involves estimating a production function, but does not necessarily require utility function estimation. The results indicate that, although the Japanese economy experienced a public capital deficiency over the period 1960–1982, public capital moved toward optimal levels throughout the period. First version received: March 1997/final version received: June 1998     

Government spending, capital accumulation and the optimal policy rule: The role of public service capital

In this paper, we modify the Djajić [Djajić, S., 1987. “Government Spending and the Optimal Rates of Consumption and Capital Accumulation,” Canadian Journal of Economics 20, 544–554.] model in such a way that government consumption expenditure provides utility to households via the total stock of government services rather than the government consumption flow alone. By using such a framework, we show that the optimality condition for the public service capital stock is the marginal rate of substitution between public service capital and consumption that equals the intertemporal marginal rate of transformation between the two goods. In addition, we show that the relationship between private consumption and public service capital in a household's utility plays an important role in determining the transitional behavior of relevant variables. We also examine the second-best government consumption expenditure policy. By contrast, in the standard flow specification, e.g., Turnovsky and Brock [Turnovsky, S.J. and Brock, W.A., 1980. “Time Consistency and Optimal Government Policies in Perfect Foresight Equilibrium,” Journal of Public Economics 13, 183–212.], Ihori [Ihori, T., 1990. “Government Spending and Private Consumption,” Canadian Journal of Economics 23, 60–69.], and Turnovsky and Fisher [Turnovsky, S.J. and Fisher, W.H., 1995. “The Composition of Government Expenditure and its Consequences for Macroeconomic Performance,” Journal of Economic Dynamics and Control 19, 747–786.], the second-best government consumption expenditure is decided on the basis that the marginal utility of consumption is equal to the discounted sum of the marginal utility of the government's flow spending.     

On the heterogeneous impact of public capital and current spending on growth across nations

This paper captures the heterogeneous impact on growth, of public capital and current spending, for 15 developing countries. Using the GMM system panel estimator, we show that countries with substantial public capital (current) spending have strong negative (positive) growth effects.     

Optimal composition of government public capital financing

Most recent studies on growth models with public investment in infrastructure (public capital) presume that public capital is financed by income taxation. However, in the model where money is demanded for transactions, this paper finds that optimal public capital financing in general involves utilizing both income taxation and seigniorage. In such a case, the optimal income tax rate is less than the output elasticity of public capital, a reasonable result compared with empirical evidence.     

资本流动性的测量——基于资本流动性结构分析

首先对资本流动性进行了概念界定,认为资本流动性即为资本流入流出占一国国民生产总值的比值,并对几种测量资本流动性的方法进行了简要评述。在总量规模法的基础上运用直接测算法、间接测算法、克莱因测算法、非直接投资净额调整法测量了我国的资本流动性。结合对我国资本流动性结构特征的变化的分析,发现直接投资的流动性稳步下降,证券投资和其他投资的流动性为上升趋势,而总资本流动性呈震荡上升趋势。其中,在不考虑资本外逃时,其他投资对总资本的流动性变化起到主要作用。     

Accumulation and distribution of human capital: the interaction between individual and aggregate variables

The paper analyses the joint evolution of accumulation and distribution of human capital in an OLG framework. Dynamics arises from the interplay between human capital distribution and individual variables—inherited human capital and inborn ability. Such interaction drives individual investment in human capital and accumulation in the economy. According to initial distribution the model provides different dynamical behaviours linking growth and inequality; in general economies with a more equal initial distribution grow faster but other cases are possible. Moreover, since the model provides an endogenous threshold for investing in human capital, the distribution is characterised by multi-modality.     

The influence of capital controls on long run growth: Where and how much?

The financial crisis in East Asia generated a revival of interest in the merits of financial openness. The ensuing debate on the benefits of openness has focused more on short and medium run issues than on the long run effects. Within the empirical literature on economic growth, little or no attention has been paid to the effects of financial openness. Contrary to the orthodox position, the few results that exist suggest that capital controls have no effect on economic growth. This paper argues that this conclusion emerges from a failure to account for underlying differences across countries with similar degrees of capital controls. We show that the degree of ethnic and linguistic heterogeneity in a country plays a significant role in explaining the effects of controls on economic growth. For countries with relatively higher degrees of ethnic heterogeneity, the effects are particularly adverse whereas for countries with high degrees of homogeneity, capital controls actually have a net positive effect on economic growth. On balance, more developing countries suffered due to controls than not. Within the sample of 57 non-OECD countries that did implement controls for the period 1975–1995, as many as 39 saw a reduction in their growth rates. This result is robust to a number of variables commonly used in the economic growth regressions.     

Revisiting the process of aggregate growth recovery after a capital destruction

We study the implications of a growth model including social capital and habit formation concerning the recovery of economies that suffer from an exogenous destruction in their capital stock. Habits exhibit very low persistence and depend only on last period’s consumption as suggested by empirical evidence. In addition to physical capital, agents invest in social capital which generates both market (production) and non-market (utility) returns. We study an infinite horizon model and compare its implications to a model with habit formation but without social capital. Our framework is more efficient in generating dynamic patterns that replicate the behavior of the main economic variables during the reconstruction period. High investment in social capital at the beginning of the transition is a key element of our results.     

Regional productivity variation and the impact of public capital stock: an analysis with spatial interaction,with reference to Spain

In this article, we examine whether variations in the level of public capital across Spain's Provinces affected productivity levels over the period 1996 to 2005. The analysis is motivated by contemporary urban economics theory, involving a production function for the competitive sector of the economy (‘industry’) which includes the level of composite services derived from ‘service’ firms under monopolistic competition. The outcome is potentially increasing returns to scale resulting from pecuniary externalities deriving from internal increasing returns in the monopolistic competition sector. We extend the production function by also making (log) labour efficiency a function of (log) total public capital stock and (log) human capital stock, leading to a simple and empirically tractable reduced form linking productivity level to density of employment, human capital and public capital stock. The model is further extended to include technological externalities or spillovers across provinces. Using panel data methodology, we find significant elasticities for total capital stock and for human capital stock, and a significant impact for employment density. The finding that the effect of public capital is significantly different from zero, indicating that it has a direct effect even after controlling for employment density, is contrary to some of the earlier research findings which leave the question of the impact of public capital unresolved.     

Policy matters. The long run effects of aggregate demand and mark-up shocks on the Italian unemployment rate

This paper estimates a VAR including labor productivity, real wage and unemployment rate, to identify the dynamic effects of technology, demand, and mark-up shocks, respectively, on the Italian labor market. Identification is achieved by imposing recursive restrictions on the matrix of long run multipliers. Our results show that both mark up and aggregate demand shocks permanently reduce the unemployment rate. Finally, technology shocks do not significantly affect the unemployment rate in the long run. These findings convey important policy implications: expansionary aggregate demand and deregulation policies reducing the mark up permanently decrease the Italian unemployment rate.Jel classification: C32, E32, J29This paper has been produced as part of a CEPR Research Network on New Approaches to the Study of Economic Fluctuations. We would like to thank Marcello DAmato, Mario Forni, Marco Lippi and Antonio Ribba for useful comments. We are also grateful to Bernd Sussmuth for pointing out to us several significant improvements to the paper.First version received: November 2001/Final version received: October 2002     

Spatial income and public capital: a case of a Spanish region

The objective of this paper is to analyse major determinants of disposable per capita income at a local municipality level for a territory of Spain: the Valencian region. A cross-sectional spatial study for an averaged period (2010–2013) will allow us to control for intraregional correlation, paying special attention to the role of real public investment and its possible effects on disposable personal income. A reference framework for economic and social policymakers will be provided by the specification of the model.     

Labour market effects of public capital stock: evidence for the Spanish private sector

This paper provides a new rationale for the positive effect of public capital stock on employment and wages. We show that higher levels of public capital reduce wages along the wage equation and enhance employment due to the resulting larger elasticity of labour demand with respect to wages. The estimation of a structural model for the Spanish private sector reveals that this wage channel is empirically relevant. We use the estimated parameters to simulate the recent incidence of the ratio of public to private capital stock on the private sector economic performance. We find (i) sizeable effects on employment, capital stock and gross domestic product, and (ii) that the wage channel is particularly important for employment.     

Testing the endogenous growth model: public expenditure, taxation, and growth over the long run

Endogenous growth models, such as Barro (1990), predict that government expenditure and taxation will have both temporary and permanent effects on growth. We test this prediction using panels of annual and period‐averaged data for OECD countries during 1970–95, isolating long‐run from short‐run fiscal effects. Our results strongly support the endogenous growth model and suggest that long‐run fiscal effects are not fully captured by period averaging and static panel methods. Unlike previous investigations, our estimates are free from biases associated with incomplete specification of the government budget constraint and do not appear to result from endogeneity of fiscal or investment variables. JEL Classification: H30, O40 Validation du modèle de croissance endogène: dépenses publiques, fiscalité et croissance à long terme. Des modèles de croissance endogène comme celui de Barro (1990) prédisent que dépenses gouvernementales et fiscalité vont avoir des effets temporaires et permanents sur la croissance. On met cette prévision au test à l'aide de données annuelles et pour certaines moyennes couvrant des sous‐périodes pour les pays de l'OCDE (1970–95) dans le but de départager les effets à court et à long terme. Les résultats valident fortement le modèle de croissance endogène et suggèrent que les effets fiscaux à long terme ne sont pas pleinement capturés par des méthodes utilisant des moyennes ou des méthodes statiques. Contrairement aux résultats d'enquêtes antérieures, les résultats proposés ne souffrent pas de distorsions attribuables à une spécification incomplète de la contrainte budgétaire du gouvernement, et ne semblent pas être l'effet d'écho de l'endogénéité des variables fiscales et de l'investissement.     

Privatisation and aggregate output: testing for macroeconomic transmission channels

In this paper we examine empirically the impact of privatisation on output in the UK, through macroeconomic transmission channels. While most privatisation studies focus on microeconomic shocks, namely at the firm level, we are interested to see whether a large scale privatisation policy, as the one pursued in the UK in the 1980 and 1990s, had a measurable impact on output. This may contribute to the ex post evaluation of this policy and complement the microeconomic evidence. We use quarterly data from 1979 to 1998 of privatisation proceeds, as our impulse policy variable, and of private consumption, gross fixed capital formation, net government expenditures, as transmission channels, and aggregate output as our final response variable. The econometric methodology is based on Structural Vector Auto-regressive models and Impulse Response Functions. Non-stationarity and cointegration properties of the time series have also been considered. We find that privatisation shocks do not have an impact in the consumption-output model, but have a moderate and transitory impact in the investment and the public expenditures models. Such positive demand effects, however, have not been completely matched by supply side effects, and, consequently, privatisation in the UK did not contribute to a sustained economic growth.

Adherence to guidelines for sensitivity analysis: cost-effectiveness analyses of dual oral antiplatelet therapy

Abstract

Objective: Cost-effectiveness analyses of new treatments for cardiovascular disease frequently require input parameters whose values are known with uncertainty due to limited data. The objective of this paper is to examine the extent to which published sensitivity analyses addressing this uncertainty adhere to Health Technology Assessment (HTA) guidelines.

Research design and methods: A systematic review of published cost-effectiveness analyses was performed for an example drug treatment scenario, dual oral antiplatelet therapy compared with aspirin alone following acute coronary syndromes and/or percutaneous coronary intervention. The following medical literature databases were searched for articles published from January 1997 to June 2007: PubMed, Cochrane Collaboration, EMBASE and the Health Economic Evaluation Database (HEED). Evidence tables were created to show the sensitivity of the cost-effectiveness estimates to changes in the input parameter values, as well as the data sources used for the reference-case and sensitivity analysis input parameter values. The extent to which the sensitivity analyses adhered to HTA guidelines were also examined.

Results: Cost-effectiveness ratios were most sensitive to changes in the efficacy of dual antiplatelet therapy and reference-case model assumptions about costs beyond the trial period. Although alternative values tested in the sensitivity analysis for some input parameters were based on observed ranges or distributions, alternative values tested for many other input parameters were assumed without justification.

Conclusions: Sensitivity analyses in the cost-effectiveness studies of dual oral antiplatelet therapy were not fully adherent with HTA guidelines. In particular, long-term costs and benefits were not always included in the sensitivity estimates, the impact of differential effects on death and myocardial infarction was not explored, and justification for the alternative parameter values tested was not always provided.     

Corporate valuation and social capital: a cross-country analysis

This article analyses the influence of social capital on corporate valuation for a sample of 55 countries over the period 1995–2012. The results suggest that social capital is an important determinant of corporate valuation. Interpersonal trust and civic cooperation enhance corporate valuation, even though other institutional and legal characteristics are considered. Furthermore, our results reveal that corporate valuation increases with the GDP annual growth rate, legal enforcement and the protection of shareholders’ rights, but that it is negatively affected by corruption and protection of creditors’ rights. We also obtain some evidence suggesting that civic cooperation has a greater influence over corporate valuation in poorer countries.     

中小企业资本结构与经营绩效关系研究——基于中小企业板的实证分析

以中小企业的佼佼者——在深交所中小企业板上市的公司为对象,研究其资本结构的现状,并从各公司2007年财务报告中选取盈利能力、营运能力等五方面共15个指标,采用主成分分析和线性回归,分析资本结构对其经营绩效的影响。经过分析,15个代表经营绩效的财务指标可以通过五个主成分表示,而且这五个主成分表示的经营绩效与代表资本结构的资产负债率和流动资产比率显著正相关,这说明我国中小企业上市公司资本结构与经营绩效的变动呈同向关系。     

Human capital formation and public debt: growth and welfare effects of three different deficit policies

We analyze an endogenous growth model public educational spending. We show that the balanced budget policy and the policy with a slight deficit yield higher growth than a debt policy where public debt grows at the same rate as GDP, unless the government is a creditor. As concerns welfare, it can be demonstrated that a strong deficit policy yields lower welfare than a balanced budget and a slight deficit policy, unless initial debt ratios are low and the intertemporal elasticity of substitution is high. Finally, there may exist an inverted U-shaped relation between welfare and deficit-financed educational spending.     

Investment cash flow sensitivity and financial constraint: a cluster analysis approach

This article sheds light on the mixed empirical evidence concerning financial constraint and investment sensitivity to cash flow. The literature suggests that measuring financial constraint is far from straightforward, and we therefore propose a cluster analysis procedure to identify unambiguous groups of constrained firms. We found the investment results to be highly sensitive to cash flow for financial constraint firms. Moreover, in line with previous research, our results showed that the traditional criteria used to identify financially constrained firms led to ambiguous interpretations. Overall, our results propose that the cluster analysis can be used to encompass the various single-criterion approaches, thereby providing a finer measurement of the financial constraint construct and deeper insight into the relationship between investment sensitivity to cash flow and financial constraint.     

The effect of exchange rate changes on trade balances in the short and long run

Using generalized impulse response functions, this study tests for the trade J‐curve for three transitional central European countries – the Czech Republic, Hungary, and Poland – in their bilateral trade with respect to Germany. Our findings suggest that for each country there are some characteristics associated with a J‐curve effect: after a (real or nominal) depreciation the export‐to‐import ratio briefly drops to below its initial value within a few months and then rises to a long run equilibrium value higher than the initial one.