Roles of Public Capital in Pakistan's Economy: Productivity, Investment and Growth Analysis

This study analyzes the role of public capital in Pakistan's economy, tracing the relationship between productivity of public capital and economic growth. We estimate a production function, with public capital as an inputs. The results indicate that the productivity (output elasticity) of aggregate as well as different components of public capital are sufficiently high. We also analyze substitutability and complementarity between public and private capital by estimating investment functions, revealing that public capital has worked as a substitute for private investment. The net effect of public capital on the national economy is analyzed by estimating reduced forms, with the result that public capital has a positive net effect on national product. The growth analysis shows that the contribution of public capital is declining over time.     

Public education under capital mobility

The paper considers a two-country model of overlapping generations economies with intergenerational transfers motivated by altruism and investment in human capital. We examine in a non-stationary competitive equilibrium the optimal provision of education with and without capital market integration. First, we explore how regimes of education provision—public, private or mixed—arise and how they affect the dynamics of autarkic economies. Second, we study the effects of capital market integration, in equilibrium, on the optimal provision of education. Third, we show that capital market integration enhances government intervention in the provision of public education (to improve the welfare of its constituents) and consider various solutions to such a competition.     

Public and Private Investment and The Growth Process in Developing Countries

This paper examines the relative contribution of public and private investment to per capita GDP growth in developing countries. It extends the basic neoclassical model of growth by separating investment into its public and private components, and estimates this model for a sample of 95 developing countries over the period 1970–90 using both cross-sectional and panel data. Using data on relative supplies of public and private capital stock, rates of return to public and private investment are also computed. The results suggest that once other determinants of growth, such as human capital formation, population growth, and technical progress, are taken into account, public and private investment have different effects on growth, and that these effects are characterized by marked regional and inter-temporal variations.     

Effects of an anticipated expansion in international public goods on public capital accumulation

This paper presents a generic model to include public capital accumulation and the services of international public goods provided by a neighbor country. It examines the long-run and short-run responses of private and public capital accumulation in the home country to an anticipated increase in international public goods. It is found that the home economy in effect cuts its public capital stock, but keeps an unchanged private capital stock in the long run when a neighbor commits itself to expanding the stock of public goods in the future. The key factor determining the short-run responses of the home country is the extent to which it will match its government spending with a neighbor country's policy, which is associated with the relative difference between the marginal utility of consumption and that of home public capital affected by an increase in international public goods.     

Public spending and optimal taxes without commitment

We consider a representative agent, infinite-horizon economy where production requires private and public capital. The supply of public capital is financed through distortionary taxation. The optimal (second best) tax policy of a benevolent government is time inconsistent. We therefore introduce explicitly the constraint that at no point in time the revision of the original tax plan is desirable. We completely characterize the (third best) tax plan that satisfies this constraint, and estimate the difference in tax rate between the second and third best policy for a wide range of parameters. For some of these the difference between the second and third best tax rates is large, and so are the associated rates of economic growth.     

Long-run growth and welfare effects of public policies with distortionary taxation

In a one-sector growth model with infrastructure investment, we study the impact of fiscal policies on growth. The government collects taxes on labor income and profits. The government uses these revenues to purchase infrastructure investment, provide utility enhancing government services, and to provide transfer payments to the households. We show that the balanced growth rate is an increasing function of the percent of government revenues that goes to infrastructure. We find that the growth maximizing mix of taxes depends on the elasticity of substitution between inputs. In particular, with distortionary taxes, the growth maximizing tax rate on capital is higher the lower the elasticity of substitution between private physical capital and public capital. In addition, the growth maximizing size of the government is higher when the elasticity of substitution between public and private inputs is low. We also investigate welfare effects of other public expenditures as well. Depending on the elasticity of substitution in production, the welfare implications of different public policies can be substantial.     

Public and private healthcare services: What drives the choice?

This paper has explored patients' propensity to consume private healthcare services. We based our analysis on the typical tangible and intangible (for instance, responsiveness, reliability, assurance and staff empathy) domains of the SERVQUAL and SERVPERF methods. These variables may influence patients' decision-making when they choose between the public and private sectors. We combined factor analysis (to obtain a set of latent factors related to perceived quality) and a partial proportional ordered logit model to estimate the probability that a patient would access private healthcare services. To test the main hypotheses, we used data from a stratified sample in Sardinia, a peripheral region of Italy. Findings revealed that private and public healthcare are substitutes, especially for primary/specialised services. Patients who used public healthcare frequently and had a low income were unlikely to change to private healthcare or to recommend private services. ‘Responsiveness’ and perceptions on ‘tangibles’ were key in determining the probability that a patient would choose and recommend private services. This paper offers a multifaceted framework that can be used in future research to generalise these findings, especially in insular regions that are constrained by mobility.     

Public spending,public governance and economic growth at the Vietnamese provincial level: A disaggregate analysis

This study examines the role of economic governance in the relationship between public spending, private investment, and economic growth in Vietnam at the provincial level. The study data consist of sixty-two Vietnamese provinces for the period 2006–2015. Some notable results are attained by applying a sequential (two-stage) estimation. First, the marginal benefits to economic growth of increased Vietnamese provincial government expenditures may be constrained because of the inefficiency of expenditures on education, business services, and public administration. Second, public spending and private investment are found to be substitutes at the provincial level. Third, based on the Provincial Competitiveness Index (PCI) ranking, used as a proxy for provincial public governance in Vietnam, the significance of public governance can be observed. The study concludes that good governance, characterized by different attributes, such as lower informal charges, greater transparency, and unbiased policy, plays a critical role in improving the impact of government expenditure on economic growth in Vietnamese provinces, particularly through its interactions with private sector investment.     

公用事业上市公司盈利能力与资本结构的实证分析

近年来,国家逐渐放松对公用事业的管制,一改以往国家直接投资、建设、经营的模式,开始鼓励民间投资,使我国公用事业的产业环境发生了巨大变化,进而对其融资策略及资本结构决策行为产生影响。企业的资本结构与其盈利能力之间有什么关系?以2006年深沪两市公用事业上市公司为样本,选取了影响企业盈利能力的主要指标,利用主成分法对其进行综合评价,并与影响企业资本结构的主要指标资产负债率进行相关分析与回归分析,试图寻求公用事业企业资本结构的最优解,为我国公用事业企业资本结构的优化提出建议。     

Public inputs and dynamic producer behavior: endogenous growth in U.S. agriculture

This paper is an attempt to understand the impact of public R&D and public infrastructure on the performance of the U.S. agricultural sector during the last part of the twentieth century. A neoclassical Solow growth model is not sufficient for this understanding given the sustained growth performance of the sector. We base our analysis on a well-known endogenous growth model, the ‘AK model’ where non-convexities are introduced through non-rival inputs. Based on these models and within the dynamic models that rationalize private and public decision making, we have identified three testable hypotheses regarding the aggregate agricultural production technology. They are: (1) increasing returns to scale over all inputs; (2) positive effect of additional units of public inputs on the long-run demand for private capital; and (3) negative impact of public inputs on cost. They are tested using two estimation procedures on two data sets for U.S. agriculture. One, covering the period 1948–1994, developed by USDA, the other, covering the period 1926–1990, from Thirtle et al. Maximum likelihood estimates do not conform to the regularity and behavioral properties of the economic model rendering them unusable for testing these hypotheses. Bayesian estimates, although not totally satisfactory, do not reject the hypotheses after prior imposition of some of the regularity conditions. This supports the notion of an important role for public inputs on the rapid and sustained growth of the sector. We calculate that, on average, one additional dollar spent on public R&D stock reduces private cost by $6.5, implying a return on these public expenses of 190%.

Taxes, Federal Grants, Local Public Spending, and Growth

In a dynamic model with both private and local public capital accumulation, this paper examines how federal and local income taxes, local consumption tax, and federal matching grants for local public consumption and local public investment affect the long-run equilibrium (equilibria) of private consumption, private capital accumulation, local public consumption, and local public capital stock.     

Opt Out or Top Up? Voluntary Health Care Insurance and the Public vs. Private Substitution

We investigate whether in a mixed insurance system, people enrolled into voluntary health care insurance (VHI) substitute public consumption with private (opt out) or just enlarge their private consumption without reducing reliance upon public provisions (top up). We specify a joint model for public and private specialist visits counts, allowing for different degrees of endogenous supplementary insurance coverage. We find evidence of opting out: richer and wealthier individuals consume more private services and concomitantly reduce those services publicly provided through selection into for‐profit VHI. Accounting for VHI endogeneity in the joint model of the two counts is crucial to this conclusion.     

Tax Competition and Revelation of Preferences for Public Expenditure

This paper considers a federal country composed of local jurisdictions that differ in their inhabitants' tastes for public goods, and which finance local public expenditure through a source-based tax on capital income. The taste for public goods is the private information of local governments. The central government seeks an optimal policy, in which grants to local governments are conditioned on local tax rates. The uninformed central government seeks both to allocate capital efficiently among jurisdictions, and to induce jurisdictions to provide an efficient mix of private and public consumption. It is shown that there persist at this constrained optimum both some misallocation of capital and some violation of the Samuelson rule for optimal public good provision in every jurisdiction.     

Securing a Better Deal From Investors in Public Infrastructure Projects

Abstract

The return on capital is a major contributor to the cost of design, build, finance and operate (DBFO) contracts, under which public infrastructure is financed and delivered by private companies. The article presents a method for evaluating the rates of return targeted by bidders and applies this to 10 contracts commissioned by the UK National Health Service. The presence of significant excess returns is identified in each case. We argue that, if the rate of return projected by an investor exceeds a benchmark cost of capital, derived using standard capital budgeting techniques, then a reduction in the fee to be paid by the public authority is justified.     

Public accountability: reforms and resistance in social housing

The paper illustrates and discusses the changing nature of public accountability relations in public services that are transferred to a mutual organization. The paper contributes to the literature that studies resistance to the neo-liberal restructuring process, highlighting civil society campaigns as important actors. A social housing case study in Britain is developed, combining a critical realist and dialogical influenced analysis. The case study identifies the role of private finance, illustrating tensions between democratic-styled and NGO-styled public accountability relations. A conclusion that housing mutuals are in danger of being apologia for private capitalism is established.     

Public capital formation and productivity growth: Some international evidence

This paper examines the proposition that public capital spending fosters productivity growth in the private sector using a pooled sample of seven OECD countries over the 1963–1988 period. The results indicate that there is a statistically significant positive relationship between public capital formation and the growth rate of labor productivity. This result is not sensitive to whether there is constant returns to scale to some or all inputs, whether the stochastic formulation of the pooled model is a fixed- or a random-effect specification, whether the model includes an energy variable, or whether the data are expressed in the log-differenced or logarithmic form.     

我国公共投资固定资本存量最优规模实证分析

以改进永续盘存法对我国1952-2009年的公共投资与民间投资固定资本存量进行了测算,然后借助柯布—道格拉斯(Cobb-Douglas)生产函数对我国公共投资的最佳规模进行了实证分析,发现目前我国公共投资固定资本存量占GDP的比重远远超过了26.83%的最优规模。据此分析了我国公共投资规模超标的原因,并提出了改进建议。     

Public sector purchasing of health services: A comparison with private sector purchasing

Recent research has highlighted the existence of important differences between public and private sector procurement practices. Drawing on established transactional and relational conceptual frameworks, this paper examines whether the differing environments confronting public and private sector organisations affects procurement practices. By focusing solely on occupational health services as an example of a complex business service, the research allows the influence of environmental factors, notably policy drivers, to be considered across both public and private sector settings while service specific factors remain largely constant. Utilising a combination of questionnaires and in-depth interviews the research suggests that policy drivers had a major bearing on procurement practices adopted in the public sector, resulting in a very different pattern of engagement with service providers from that prevailing in the private sector. Specifically whereas private sector organisations utilised a range of approaches, which can broadly be classified as relational in nature, public sector organisations almost exclusively relied on transactional-based approaches. The nature of these services suggests that relational based procurement constitutes the optimal approach to the acquisition of such services. However, for public sector organisations the perceived restrictions imposed by public policy on procurement practices resulted in the adoption of an approach which can be viewed as resulting in sub-optimal outcomes.     

The dynamic investment and exit decisions of venture capitals

This study develops a continuous time model to examine a complete two-stage decision process for venture capitals (VCs), including investment in the private market at Stage 1 and exit through IPO in the public market at Stage 2. Optimal timings, investment terms, and exit decisions are investigated using the real options game theory under two cases: the same required returns in the public and private markets and a higher required return in the private market than in the public market. Our results indicate that the same required returns in the public and private markets generate an optimal investment decision at Stage 1 without relation to the exit decision in Stage 2. However, when the required return in the private market is higher than that in the public market, the exit decision will influence the investment decision. The size of the initial capital, ownership structure, growth rate and risk of industry, required returns in public and private capital markets, extent of lock-up period price pressure, and transaction costs of financing are important factors influencing the equilibrium results.     

Growth and fluctuations: The role of public dividends and public spending

In this paper, we consider a discrete-time version of the endogenous growth model developed by Barro [Barro, R.J., 1990. Government spending in a simple model of endogenous growth. Journal of Political Economy 98, 103–125], but augmented in order to envisage a public participation in the production of private goods. Public dividends are invested in order to provide a public good; in turn, the public good plays a role of indispensable production externality and, eventually, of growth engine.For what concerns the production of private goods, we find that an optimal policy is always based on a positive participation of the government as shareholder; also, when growth is slow, a public intervention or large substitution effects stabilize the economy.A right mix of short-run services and long-run infrastructures is suggested in slow economies to rule out expectation-driven fluctuations. Infrastructures are mainly recommended in presence of moderate income effects, while services are recommended in presence of strong income effects.