An African Growth Trap: Production Technology and the Time-Consistency of Agricultural Taxation, R&D and Investment

Why do so many African governments consistently impose high tax rates and make little investment in productive public goods, when alternative policies could yield greater tax revenues and higher national income? The authors posit and test an intertemporal political economy model in which the government sets tax and R&D levels while investors respond with production. Equilibrium policy and growth rates depend on the initial cost structure. It is found that in many (but not all) African countries, low tax/high investment regimes would be time‐inconsistent, primarily because production technology requires relatively large sunk costs. For pro‐growth policies to become sustainable, new political commitment mechanisms or new production techniques would be needed.     

宏观调控状态下的中国经济增长

经济景气、新的居民需求、国有企业改造、积极财政政策效应及各地发展当地经济的积极性,是促使本轮固定资产投资激增的主要原因。对中国经济增长来说,总需求上的结构性失衡比总量不足具有更大的危害。但也应该看到,此次固定资产投资的较快增长,和20世纪80年代和90年代有较大的不同,应采取针对性的对策,在保持经济可持续增长的情况下,对最终需求结构进行调整。     

General Equilibrium Impacts of Monetary and Fiscal Policies on Welfare of Households in South Asia

Impacts of fiscal and monetary policies are assessed in an open economy two sector multi‐household general equilibrium tax model with money for South Asia. Despite impressive growth rates there is evidence for alarming gaps in the distribution of income among households that require very careful design of economic policies. Generally the impacts of fiscal expansions are positive for all categories of households under the flexible price system but the gains are much higher for households in the upper income group than for those in the bottom. In theory the equilibrium relative prices guarantee the optimal allocation of resources in such economy. Simulation results show that demand, output and employment are sensitive to the preferences of consumers, confidence of producers and sector specific production technologies. Monetary policy is super‐neutral under flexible price regime but can complement fiscal policy well when aggregate prices are made sticky. Combination of monetary and fiscal policies in this manner can have extensive impacts in efficiency and redistribution. Higher taxes distort incentives to work and investment from richer households slowing down the economy. This reduces the welfare level of both rich and poor. Flexibility in prices enhances the market mechanism and makes the fiscal policy more effective and efficient.     

Fiscal implications of AIDS in South Africa

The number of people living with HIV is alarmingly large. In addition to the incomprehensible human suffering of those directly affected, AIDS also has large, negative economic effects. In this paper, I study the fiscal implications of the HIV/AIDS epidemic in South Africa in a standard neo-classical growth model. I find that an antiretroviral program is to a large extent self financing. Improvement in dependency ratios and health care cost savings would pay for Rand 144 billion of a full epidemiological intervention. The indirect effect through the changing demographic structure will be more important than the direct health care cost saving effect. I also explore different taxation policies. The households would be willing to sacrifice an amount equal to 12% of GDP in the first period to be subject to an optimal (Ramsey) fiscal policy rather than an alternative fixed debt to GDP policy. The optimal policy implies an increase in government debt during the peak of the epidemic.     

我国国债资金运营效率实证分析

自1997年我国实行积极财政政策以来,拉动了国内投资需求,刺激了经济增长,对保持经济的持续、稳定增长起到了重要而积极的作用.本文测算的结果显示,国债对经济增长的贡献度自1997年以来呈逐年递增趋势,即从1997年的8.83%递增到2000年的12.23%;但另一方面不容忽视的是,国债的大量持续发行亦对民间投资形成"挤出效应",部分构成了经济增长的抵消因素.国债政策怎样在对经济增长的正负作用之间进行平衡抉择,文中提出应进一步优化政府投资结构,鼓励、扩大民间资本投资,完善政策配套手段等.     

Agricultural subsidy policies fail to deal with child labour under agricultural dualism: What could be the alternative policies?

We provide a theoretical explanation why agricultural subsidy policies are likely to fail to ensure simultaneous eradication of the incidence of child labour and improvement in the well-being of the poor working families in terms of a three-sector general equilibrium model with child labour and agricultural dualism. We identify both demand and supply side effects of any policy intervention on child labour. We also suggest two alternative policies, a scheme of direct cash transfer to poor people and economic growth through foreign direct investment (FDI), both of which would be effective in achieving these twin objectives of a welfare government.     

How to Achieve the Take-off into Sustained Growth: A Case Study for Slovenia

In this paper, we show that successful policy aimed at enhancing economic growth in the long run must be based on policies which improve human capital and technological progress. This is applied to Slovenia, a small open economy in the European Union and the Euro Area. In particular, we investigate how fiscal policies should be designed to support economic growth without violating the European Union Stability and Growth Pact. Using the SLOPOL10 model, an econometric model of the Slovenian economy, we analyse the effects of different fiscal policies in Slovenia over the next few years by means of simulations. The fiscal policy multipliers of the Slovenian economy are small and short-lived, which renders demand-side expansionary fiscal policies inappropriate as a means of achieving higher growth. However, if an increase in government expenditures directly related to technological progress is implemented (such as better funding for tertiary education or subsidies for firms’ investments in research and development), this can trigger a path of output which is permanently higher than that of the baseline simulation. Reducing income taxes and social security contributions has strong positive effects on employment. This result shows that the key to prosperity and sustained growth is investment in human capital and technology, also for a small open economy like Slovenia.     

The impacts of imports and trade liberalization in Brazil: Insights from an aggregate cost function

Brazil has faced and continues to struggle with difficult economic challenges, including achieving noninflationary economic growth and a manageable external deficit. This paper presents the results of the estimation of an aggregate translog cost function with inputs of domestic capital and labor and imports and outputs of consumption and investment goods. The resulting calculated elasticities give insights into the relationships among the inputs, as well as the possible impacts of further reducing international trade barriers. The findings suggest that all of the inputs are substitutes for one another and that an increase in imports may have at least short-run negative effects on the demand for domestic capital and labor. However, imports appear to be particularly important in the production of investment goods, so an increase in imports may result in a more than proportionate increase in the output of those products and enhance the long-term growth of the economy. The responses to current challenges facing Brazil will affect its future economic growth as well as have a broader impact on the international scene. The results described here may help to inform policy makers as they address these issues, particularly with respect to international trade policies.     

Dynamics of Macroeconomic Adjustment with Growth: Some Simulation Results *

This paper examines the impact of several macroeconomic policies, both demand and supply management policies, on economic activity within a small macroeconomic simulation model. The model is based on a standard analytical framework that underlies adjustment policies in developing economies (Des). The standard approach has been to use aggregate government expenditure as an instrument of fiscal policy to shock economic activity in a DE, with a negative dynamic response typically observed. In the context of such a small macroeconomic simulation model we decompose government expenditure into consumption and investment expenditure. Simulation exercises with and without model-consistent expectations throw up some contrasting results in the sense that fiscal policy can influence output positively through the effects of public sector investment on private investment in a DE such as India. [F43, E62]     

A Systemic Debt Payoff Policy

The average family in the US takes on debt to buy homes, to get education, and sometimes to even pay for normal daily expenditures. Outstanding debt generates a stream of rents to creditors and has become a significant burden on many households. A policy of household debt forgiveness could increase both economic equality and individual liberty. Under what conditions might such a policy be socially acceptable and what would be the implications of such a policy? For debt forgiveness to gain social acceptance the U.S. population would have to perceive the policy as fair and believe that such a program would treat all households equally. Furthermore, any such policy would be politically impossible if it stripped asset owners of money due or would not substantially lower household debt levels. This article explores some possible parameters that a politically feasible policy would contain, and it offers an estimate of policy costs.     

中国长期煤炭需求:影响与政策选择

本文采用协整技术研究中国煤炭需求的长期均衡关系,估计出中国煤炭需求的长期收入弹性、价格弹性、结构弹性以及运输成本弹性;预测未来长期煤炭需求并分析其对环境、煤炭供给和煤炭价格的影响;模拟解释变量不同增长率下煤炭需求的演变并给出政策选择。中国高速经济增长是煤炭需求增长的主要原因。GDP是引导煤炭需求的原因,但煤炭需求不是引导GDP增长的原因,这也说明了将GDP作为解释变量的合理性。变量模拟得出的政策选择是工业结构的调整,即便是微调,也会对煤炭需求有很大的抑制作用;煤炭出厂价格的变动对煤炭需求变动的影响不太大,但煤炭需求对运输成本相当敏感,因而煤炭的最终价格对煤炭需求影响很大。     

新时期我国外资政策的双面性分析及取向

已有的外资战略和政策对我国经济发展一直起着积极的推动作用。但鉴于现有的引资理论基础已发生改变，且引资政策中也存在许多负面效应。因此本文在问题分析的基础上，明确了外资政策的双面性，强调了当前调整外资战略政策的迫切性，并提出我国引资战略的政策取向。     

THE CONCEPT OF MACROECONOMIC COST AND ITS UTILITY

The proposed "Variable Domestic Cost" includes all net payments by sectors belonging to the productive system (enterprises, credit institutions and government) to all other sectors (households, private non-profit organizations and the rest of the world). Compared with the rate of growth of demand, represented by Gross Domestic Marketable Product at current prices, the rate of growth of VDC per unit produced forms the "profitability function of the nation." Profitability is positively related to the rate of economic growth and to the price/cost relation. A relative deceleration of unit VDC stimulates economic growth, which enlarges the positive difference between price and cost, and that, in turn, accelerates economic growth. Inversely, a relative acceleration of unit VDC brakes economic growth, while a slowdown in production raises unit costs and depresses prices. The resulting fall in profitability stops economic growth.
The main explanatory variables of demand are World trade, monetary and fiscal policy and import prices. The main components of VDC are enterprises' wage costs, social benefits minus social contributions and the government wage bill minus direct taxes payable by households. The fact that in West Germany all these unit costs were increasing more slowly than in France explains why Geman economic growth, much slower than French before 1975, outpaced it after that year, achieving a lower rate of inflation, a larger positive balance of trade and a higher appreciation of the national currency.
The concept of VDC is a useful contribution to the theories of inflation and of economic fluctuations and provides a possible explanation of structural unemployment. Maintaining VDC at a lowest possible level should be considered a major object of economic policy.     

Estimation of the public benefits of urban water supply improvements in Ethiopia: a choice experiment

Improving existing drinking water supply services in developing countries depends crucially on available financial resources. Cost recovery rates of these services are typically low, while demand for more reliable services is high and rapidly growing. Most stated preference-based demand studies in the developing world apply the contingent valuation method and focus on rural areas. This study examines household Willingness to Pay (WTP) for improved water supply services in a choice experiment in an urban area in Ethiopia, a country with the lowest water supply coverage in Sub-Saharan Africa. The design of the choice experiment allows estimation of the value of both drinking water supply reliability and safety. The estimated economic values can be used in policy appraisals of improved supply investment decisions. Despite significant income constraints, households are willing to pay up to 80% extra for improved levels of water supply over and above their current water bill. Women and households living in the poorest part of the city with the lowest service levels value the improvement of water quality most. As expected, also averting behaviour and expenditures play an important role.     

Testing for Long Run Purchasing Power Parity: An Examination of Korean Won

My small-scale macroeconomic model of the Taiwanese economy contains behavioral equations to explain saving, investment, the rate of economic growth, export demand, export supply, and import demand. Exploiting the two definitions of the current account (national saving ? omestic investment and export + net factor income from abroad ? imports), the in-sample dynamic simulation tracks the current account remarkably well. If the Taiwanese government pursued deliberate policies to reduce the current account surplus, this model indicates that the effects on the economy would depend critically on whether the current account surplus was eliminated by reducing national saving or by raising domestic investment. [430]     

Effects of European integration on Austria’s economy

High expectations were placed on the project of European economic integration and Austria’s participation in it. Economists had expected that the Single Market would provide a positive supply shock, i.e. rising productivity, resulting in more growth. The optimistic forecasts for neither the EU nor for Austria were borne out by actual economic trends. Economic growth as well as productivity growth decelerated, while unemployment increased. Monetary union was implemented with an economic policy framework, the Stability and Growth Pact (SGP) that geared monetary policy only to price stability and at the same time prescribed restrictive fiscal policies. The SGP therefore reveals a deflationary bias. The existing literature on the effects of EU accession on the Austrian economy by design fails to account for the restrictive effects of the SGP. The paper presents simulation results allowing for supply shocks as well as demand shocks. The simulations are based on a medium‐sized macroeconometric model. The results indicate that recent studies overestimate the positive effects of European integration. A simulation of the restrictive demand‐side effects of the SGP, with the assumption that around half of the fall in public consumption growth in the Euro countries can be attributed to the SGP, produced significant negative growth effects. The net effect suggests a negative quarter percentage point p.a. during the period 1995–2004.     

当前我国经济面临问题的分析与对策选择

在国家一系列扩大内需政策的作用下,我国的经济形势已经出现了重大转机,但我国的经济发展还面临一些亟待需解决的问题,我国的消费、投资和出口需求不足;而且深层次的体制问题也亟待解决,所以对我国的经济形势不能盲目乐观,因此,调整我国以扩大内需为取向的宏观政策还为时过早。我们必须继续采取措施,促进经济的持久增长。     

Deterministic randomness in a model of finance and growth

Following the literature on growth, cycles and financial development, this paper develops an economic growth model in which the source of endogenous business cycles relates to the allocation of credit between productive investment and consumption. An important role is given to consumer sentiment, because this determines the demand of households for credit; in particular, optimistic beliefs about the economy’s macro performance divert financial resources from investment in favor of consumption. The dynamic analysis indicates that Neimark–Sacker and flip bifurcations eventually separate stable and unstable manifolds and, as a result, a region of nonlinear motion is generated: cycles of various periodicities and chaotic motion characterize the behavior of the long run time paths of accumulated wealth, output and consumption.     

PoJjcy and the Australian Economy, 1977

At the end of the first quarter of 1977 the available economic indicators, while as usual far from univocal, still give cause for serious concern about the health and direction of the Australian economy. With no significant expansionary factors operating in the economy in 1977 other than the revival in the mining industry and in some aspects of business investment, and the various arms of economic policy being set almost entirely in a restrictive stance, aggregate output would appear to be either flat or declining modestly at the present time. On the basis of a continuation of present policies we would anticipate growth in real non-farm GDP of only 2 to 3 per cent in both 1976–77 and 1977–78, with unemployment continuing to increase until well into 1978. Given the stimulus to inflation arising from the 1976 devaluation and from the wage effects of the Medibank changes, the rate of increase in the consumer price index would seem likely to be 14 to 15 per cent in 1977, even if a partial wage indexation policy could be sustained and whether or not a one quarter wage/price deferment comes into effect. But government pressure on the Arbitration Commission for a reduction in real wages has placed the wage indexation system in jeopardy, and there is now considerable uncertainty about the methods of wage fixation which will obtain in 1977–78. This article surveys some aspects of recent developments and considers some policy options available to the government.     

Fiscal and monetary effects on environmental quality,growth, and welfare

This paper examines the effect of fiscal and monetary policies on economic growth, inflation, environmental quality, and welfare. To this end, the horizontal-R&D growth model is extended to include pollution generated in the intermediate-goods production, and the demand for money through cash-in-advance (CIA) constraints on intermediate-goods production and R&D investment. Fiscal policy embodied in the taxation of pollution decreases output, profits, inflation, and wages in the intermediate-goods sector, reallocating labor to R&D that is the engine of economic growth. As it reduces pollution, it increases welfare if there are strong preferences for a clean environment. In turn, since the inflation rate is an increasing function of the nominal interest rate, the effects of changes in this monetary policy variable extend to the effects of changes in the inflation rate. An increase in the nominal interest rate penalizes employment, wages and output in the R&D sector relatively more if the respective CIA constraint is more demanding and thus economic growth decreases. As it also reduces pollution since decreases intermediate-goods production, it increases welfare if the preferences for a clean environment are strong enough.