pollution abatement and balanced growth the analysis of endogenous growth models with pollution often concentrates on steady state trajectories under the assumption that the steady state is in some sense stable in the present note we provide examples showing that this issue should be dealt with carefully we use the rebelo ak model augmented with a stock of pollutants causing a negative externality it is found that optimal growth is not necessarily balanced contrary to the outcome of the standard rebelo model moreover the existence of the externality may affect long run optimal growth rates

the empirical relationship between money prices and income revisited this article investigates the relationship between sum divisia and monetary velocity money prices and income using the notion of granger 1969 causality this is achieved by evaluating empirically using dickey fuller unit root tests whether the macroeconomic time series under consideration are trend stationary or difference stationary and by conducting tests using three different ad hoc lag lengths 8 6 and 4 quarters as well as a statistically determined using akaike s 1969a b final prediction error criterion lag structure

exports and economic growth evidence from 19th century europe abstract cointegration and granger causality tests on data for six european countries from around the middle of the 19th century to 1913 show that exports and gnp were cointegrated and granger causally related with export led growth in italy norway and sweden

cross sector export externalities in developing countries abstract feder s model journal of development economics 1982 12 59 73 has been used extensively to measure the externality and productivity enhancing effects of one sector on the whole economy we argue that the model is misspecified make three modifications estimate it for the export vs non export sectors and compare our results with feder s

causality between export growth and industrial development empirical evidence from the nics a comment abstract in a recent article chow 1987 argued that his empirical evidence supports the hypothesis that export growth causes industrial development in this comment i point out several serious shortcomings of chow s analysis

the long run impact of foreign shocks to the austrian economy an analysis at a sectoral level this paper investigates the long run impact of foreign shocks on the austrian economy which is an example of a small open economy with a fixed echange rate regime the analysis is done in a multisectoral vector autoregression framework foreign shocks involve inovations in gnp of european oecd countries oil prices effective echange rate and interest rates sectoral responses appear to be very different in particular shocks to european oecd gnp have a high long run impact on sectoral output especially in export dependent sectors this supports the hypothesis of export led growth

the role of exports fdi and imports in development evidence from sub saharan african countries the disappointing economic performance of sub saharan african ssa economies in the late 1980s prompted reforms in foreign trade and foreign direct investment fdi in the early 1990s using the autoregressive distributed lag ardl approach and pedroni panel estimation procedures that allow for heterogeneity this study found that exports and fdi have a significant impact on economic growth granger type causality tests show the interrelatedness of exports fdi imports and income variables the results also provide evidence of a two stage causal chain of exports imports and income this article calls for more market oriented policy reforms in ssa countries

the validity of the elg hypothesis in the mena region cointegration and error correction model analysis the export led growth elg hypothesis is examined for nine middle east and north africa mena countries in three variable vector autoregressive and error correction models when considering total exports the results reject the elg hypothesis in almost all of these countries when only manufactured exports are examined no support is found for elg in countries with relatively low shares of manufactured exports in total merchandise exports but strong support in countries with relatively high shares these findings suggest that promoting exports may contribute to economic growth only after a certain threshold of manufactured exports has been reached

exogeneity and the export led growth hypothesis the case of china during the past two decades many empirical studies such as balassa 3 4 emery 7 fajana 11 feder 12 maizels 21 rams 22 23 tyler 26 voivodas 27 williamson 28 and others have found that exports promote economic growth in all of these studies a real output growth variable is regressed on either i export levels ii export shares or iii export growth by using a single equation model the statistical significance of the positive coefficient of the export variables has then been interpreted as evidence supporting the export led growth hypothesis chow 6 hsiao 16 and jung and marshall 17 have recently questioned the validity of the above findings this is because the single equation or so called impact studies using ols regression are from an econometric perspective mostly inadequate in addressing the issue of causality if a bidirectional causality between these two variables exports and output exists the estimation and tests used in the impact studies are inconsistent these concerns have subsequently generated a series of new empirical work aimed directly at resolving the issue of causality between exports and output growth 1 2 14 20 the granger 15 causality tests carried out in these studies have revealed that the causal direction in general depends on the country and commodity group under consideration notwithstanding the important contributions of the above mentioned causality studies there are shortcomings that must be dealt with to permit a better understanding of the subject matter first the impact studies presume that the export variable is exogenous this is a rather restrictive assumption as a feedback from output to exports is very likely 17 20 second the existing causality gtudies do not make a clear distinction between exogeneity and causality as suggested by engle hendry and richard 10 hereinafter ehr causality tests such as the granger 15 method are valid only for testing one component of strong exogeneity because they are concerned with sequential marginalizing feedback effects rather than contemporaneous conditioning

market reform and private trade in eastern and southern africa abstract this article reviews the experience of market reform in eastern and southern africa and highlights some key lessons learned a distinction is drawn between countries whose policy regime before reform was favourable to food production and those whose policies were unfavourable and alternative reform paths are described the two key issues emerging are the role of the public sector after reform for which there is still no clearly appropriate model and how the strong short term response of the private sector to trading opportunities can be transformed into investment post reform markets have been competitive but operate under tight constraints with little evidence of significant capital accumulation critical research issues to inform policy making are identified

discount rates natural resources and the measurement of aggregate economic growth in africa abstract over the last decade there has been a growing interest in depreciation of natural capital in national income accounts within this literature there has been limited discussion of the sensitivity of measurement to the choice of discount rate and the effect of using depreciated measures of growth in empirical analyses without attempting to estimate or justify a specific discount rate this paper presents alternative sets of growth data for 18 african countries based on different assumptions of the appropriate discount rate to apply to natural capital the data sets are then used in a statistical test of the causes of economic growth results of the statistical analysis indicate sensitivity to the choice of discount rate

the economic case for international labour standards this paper explores the economic case for international labour standards granting workers rights of free association and collective bargaining confers both static and dynamic economic efficiencies static efficiencies refer to one time gains from improvements in economic practice dynamic efficiencies refer to gains from improvements to the growth path resulting from a shift away from a low road development path to a high road path these efficiencies raise wages employment and output in developing countries and they can also benefit workers in developed countries labour standards are an institutional mechanism for raising the quality of growth in both developing and developed countries in this sense they are a win win institution

trade and the environment from a southern perspective the relationship between free trade and the environment is one of the main issues of contention between environmental and ecological economics environmental economics assumes a positive relationship between free trade economic growth and environmental policies environmental externalities may cause important damage however trade is not to be blamed for this instead the fault lies with policy inadequacies at the national level on the other hand some ecological economists criticise the assumptions of environmental economics especially the immobility of production factors and the positive correlation between income and environmental quality they plead for measures to prevent deterioration of northern environmental standards in a race to the bottom due to ecological dumping from the south in this paper we argue that neither environmental economics nor northern ecological economics take into account the structural conditions determining the international trade system based on some new empirical evidence on material flows we stress the notion of environmental cost shifting if physical and political ecology perspectives are adopted a southern approach to the trade and environment issue may arise 2001 elsevier science b v all rights reserved

analysis of hospital production an output index approach in this study a new model of hospital costs is developed and estimated utilizing an output index this theoretically appropriate output index is constructed to accurately reflect the differentiated nature of hospital care by employing both patient and diagnosis characteristics in its construction using this output index we estimate a long run translog cost function with a dataset of 321 california hospitals for the year 2003 we find evidence of economies of scope across specialties within primary care and evidence of scope diseconomies within secondary and tertiary care point estimates of scale economies using the output index indicate that minimum efficient scale is reached at a larger level than when using less refined output measurement techniques that have often been used in similar studies our estimates indicate the importance of accounting for specialty specific scope economies when analyzing the production properties of firms producing differentiated products

exports growth and causality in ldcs abstract using akaike s optimal lag criterion in a granger causality test the causal relationship between export growth and economic growth and vice versa is re examined for 20 countries it is argued that earlier analyses which ignore optimal lags in granger or sims causality tests suffer from certain shortcomings which are overcome by the present approach the results suggest some support for the export promotion hypothesis especially in the case of well known nics and thus differ from previous applications of granger test which did not adopt an optimum lag criterion and which showed no causality from export growth to economic growth in such cases however they are inconclusive in evaluating competing hypotheses

exports export composition and growth cointegration and causality evidence for malaysia this paper comprehensively tests the export led growth elg hypothesis for malaysia for the period 1955 90 using cointegration and causality testing based on hsiao s synthesis of the granger test and akaike s minimum final prediction error criterion the results provide support for the elg hypothesis aggregate exports granger cause real gdp and non export gdp this relationship is found to be driven by manufactured exports rather than by traditional exports

exports and economic growth in industrialized countries the prima facie causal relationships between growth exports and factor inputs capital and labour are investigated in five industrialized countries germany itlay japan united kingdom and united states over the period 1960 87 by analysing a four variable vector autoregressive var model for each country our results indicate that germany and japan experienced export led growth reverse causality between exports and growth is found in the case of the us and uk while to causal relationship between exports and output is found for itlay

cointegration causality and export led growth in portugal 1865 1985 abstract this paper considers the relationship between cointegration and causality and uses tests of cointegration as pre tests for granger tests of causality such methods are utilized on portuguese data 1865 1985 where the export led growth hypothesis is rejected in favour of reverse causality

maize milling market reform and urban food security the case of zimbabwe abstract government policy in much of eastern and southern africa has encouraged the development of highly centralized large scale milling facilities which has in turn promoted the consumption of highly refined and expensive maize meal compared to that produced by small scale hammer mills policies to develop competitive small scale milling facilities in urban areas are apparently neglected because of the conventional perception in eastern and southern africa that urban consumers strongly prefer the refined industrially milled meals and are not responsive to price differences between various types of maize meals results of consumer and miller surveys in zimbabwe call into question the validity of these perceptions simulation analysis also indicates that the elimination of policy constraints that block small scale millers access to grain would reduce overall marketing costs thereby allowing higher producer prices lower consumer prices and or lower government subsidies the case of zimbabwe suggests that market reform may considerably reduce the magnitude of the tradeoff between governments food security and budget minimization objectives

impact of input substitution and output transformation on data envelopment analysis decisions abstractdata envelopment analysis dea can aid managerial decision making because it offers an opportunity to measure organizational performance in a holistic manner aggregating data from partial indicators into a single comprehensive measure however there are some methodological hazards associated with the use of dea that are especially relevant to managerial decisions but which have been largely ignored in the literature herein we identify and show the impact of a ubiquitous methodological hazard in dea modelling the economic assumptions regarding input substitutions and output transformations

parastatal pay policy in africa abstract public enterprises have grown to represent a significant share of modern sector employment in many african economies with wage and employment issues near the top of the policy agenda in africa attention should be given to public enterprise compensation and employment policies after describing the institutions which govern public enterprise pay in a number of sub saharan countries the paper considers the policy dilemma in choosing between the two basic alternative pay setting regimes for public enterprise enterprise wage autonomy versus unified salary scales with the civil service

on the estimation of hospital cost functions abstract data from 166 general hospitals in new york state 1981 is used to estimate a quadratic and logarithmic long run cost function both equations fit the data very well but give very different results the quadratic appears to confirm the commonly held view of a shallow u shaped average cost curve whereas the log function indicates significant economies of scale a total and average cost elasticity of 0 9 and 0 10 respectively using beds or patient days to measure output ramsey s reset test is used to discriminate between the two models and the quadratic is clearly rejected as a misspecification scale economies thus exist even where the usual quadratic suggests otherwise

multiproduct short run hospital cost functions empirical evidence and policy implications from cross section data economists and policymakers have been interested in hospital costs and the structure of hospital technologies for several decades now early interest was focused on the possibility of scale economies which implied increased efficiency for larger hospitals 6 8 12 13 18 20 while more recent interest has been stimulated by the inflationary spiral of hospital costs 1 15 17 22 as hospital costs have risen important policy questions concerning the impact on costs of the hospitals diagnostic case mix the hospitals admitting physicians the hospitals size and the hospitals efficiency have emerged and researchers have attempted to deal with these issues within the context of increasingly complex econometric models 1 2 5 24 27 however in attempting to analyze these important policy issues researchers have been forced to make two major types of compromises on the one hand appropriate data are often not available for estimating a well specified cost function e g information on admitting physicians and diagnostic case mix are often missing so that problems of specification error often plague the econometric results conversely in using imaginative ways to deal with data problems e g weighting in patient and out patient care to form a single index of hospital services 1 27 or estimating separate cost functions for each department in the hospital 2 researchers sometimes place unrealistic and unnecessary constraints on their econometric models the purpose of this study is to analyze the impact of several of the primary hospital characteristics mentioned above on the short run costs of hospitals within a theoretically consistent framework in the following discussion we also develop the theoretical

cereals demand in the sahel and potential impacts of regional cereals protection abstract recent policy debate in the sahel has focused on a regional protection zone for cereals this paper discusses crosscountry evidence of consumption patterns and the sensitivity of these to policy variables and considers potential income distribution and efficiency impacts of a rice tariff increase a tariff would hurt the poor in the short term because the poor depend to a large extent on rice as a fast food purchased from street vendors the trend toward rice consumption is a long term structural phenomenon linked to urbanization rather than to short term price changes maize and millet sorghum are substitutes in consumption which should serve to encourage development of maize in the guinean zone to help assure sahel food security in drought years

learning and the time interdependence of costa rican exports abstract exports may enhance learning through production induced learning by doing learning to export by doing and flows of information from customers we provide evidence on the learning effects of export destination for costa rica for 1955 through 1980 we examine granger causality results and export trends to determine relationships between exports to the central american common market cacm the rest of the south and the north increasing exports to the cacm appear to promote learning in machinery leather and intermediate manufactures we also find that the cacm redirects some exports away from northern markets probably with damaging consequences

foreign growth and domestic performance in a small open economy abstract in this paper we develop a small open economy model of trade with endogenous growth induced by human capital accumulation to analyze the effects of foreign growth on the domestic growth performance stronger foreign growth has the potential to increase domestic growth through a change in the terms of trade for this to happen the domestic attitude toward saving as indicated by the intertemporal elasticity of substitution plays a crucial role for economies with sufficiently thrifty consumers changes in the terms of trade generate funds for domestic investment thereby generating enhanced long term growth if however domestic consumers are less prone to thriftiness foreign growth may lead to lower domestic output growth this result suggests that foreign growth is not necessarily a substitute for a weak domestic attitude toward saving

national accounts and environmental resources in the paper optimal growth theory is used to derive the appropriate definition of the net national product concept when there are environmental resources and environmental damage to take into account the basic conclusions are that conventional defined np should be corrected by deducting environmental damage and adding the value of the net change of all resources

an empirical investigation of the causal relationship between openness and economic growth in china this study investigates the causal relationship between openness and economic growth in china the integration and cointegration properties of the data are analysed and the models of granger sims geweke and hsiao are used to identify a bi directional causal relationship between gnp and exports plus imports this bi directional causation is consistent with china s development strategy of protected export promotion

global trade integration and economic convergence of developing countries gerschenkron hypothesized that lower income countries would tend to grow more rapidly than higher income countries and therefore that their average incomes would converge since that time the record indicates that the industrialized nations have had relatively slow growth rates while many less developed countries ldcs have had relatively rapid rates of growth although many others have had slower rates of growth and some have been negative furthermore the rates of growth have varied considerably during the four and one half decades since 1952 both among countries and within a country from one year to the next thus convergence remains an issue among development economists and others interested in the topic with frequent concern being expressed about a growing gap between average incomes in the moreand less developed economies of the world in this article we examine convergence and divergence due to differential rates of growth factors that affect growth the role of international trade in the process the policy frameworks that enhance or detract from growth and the research needs and opportunities for agricultural and resource economists a controversial aspect is the influence of trade on the process since most development economists tend to believe that more

export led development primary vs industrial exports abstract trade with north can make south poorer if south is a primary exporter manufactured imports from north can cause a decline in the real wage and consequently lower the labour supply the production possibility frontier and hence the gnp of south can shrink while that of north can expand if south gains comparative advantage in manufactured goods and reverses the trade pattern it can turn the tables on north the analysis based on a theoretical model suggests a way to reconcile the divergent views on the desirability of north south trade

unravelling zimbabwe s food insecurity paradox implications for grain market reform in southern africa abstract the organization of zimbabwe s grain market while stimulating production and incomes in high potential smallholder areas since independence has actually contributed to food insecurity among grain deficit households in semi arid areas results of an econometric model indicate that over 100 000 tonnes of expensive commercial maize meal flow annually into rural areas while grain flows out through the state marketing channel this circuitous movement of grain a symptom of poorly functioning intrarural grain trade has effectively reduced incomes among poor rural consumers by as much as 30 the promotion of intrarural trade will require the removal of government restrictions and other critical barriers to private investment in grain trading

measuring the trade off between economic growth and a clean environment this article surveys various aspects of the measurement of environmental quality from the view point of national accounting and welfare economics it focuses on the question whether gnp or nnp should be corrected for environmental change green or eco gnp or whether physical accounts provide sufficient information for an assessment of the trade off mentioned above we conclude that valuation of services from environmental capital cannot be avoided for such assessment but can only be made using a model based approach statistical agencies should continue to collect data on environmental quality and to value changes in environmental capital in the context of national resource accounting however official statisticians should refrain from correcting gnp or nnp for environmental change as this correction implicitly contains a political judgment and cannot be based on mere technical knowledge

payment source and the cost of hospital care evidence from a multiproduct cost function with multiple payers abstract this study investigates the capacity of hospitals to vary the intensity of their services based on patients expected sources of payment while the concept of price discrimination by hospitals based on payer generosity cost shifting has been discussed extensively the notion that hospitals can adjust payer specific marginal costs to reflect differences in reimbursement policies has not been studied in depth to examine this issue this analysis employs a multiproduct cost function with hospital outputs defined as admissions by payment source controlling for the distribution and severity of illness casemix for each payer marginal costs of casemix adjusted discharges are obtained and compared for medicare medicaid private payers and a residual category that includes uncompensated care we find that indeed payer specific marginal costs generally reflect payer generosity

exports as a factor of production a consistency test abstract for more than a decade economists have routinely introduced an export growth variable into a crosscountry production function framework as a way of examining various aspects of the growth process in developing countries the export promotion hypothesis in particular while the authors of these studies have rejected the argument that their results are biased by the accounting relationship between exports and gdp some recent studies offer evidence supporting this contention here a simple procedure is proposed to test for this bias the procedure consists of testing directly for the implied lower productivity in the nonexport sector of the economy

natural resources national accounting and economic depreciation stock effects abstract hartwick s analysis of incorporating resource depletion in standard national income accounting is extended to the consideration of stock effects under both certainty and uncertainty

comparative advantage trade and growth export led growth revisited abstract this paper argues that the evidence in support of export promotion and export led growth is not as strong as is sometimes suggested and that the effectiveness of such policies depends on both the level of development and the structure of exports employing cross section analysis for a wide range of less developed countries we found a strong correlation between economic growth and the proportion of manufactures and stage three processed primary products moreover the proportions of both manufactures and stage three items were also strongly correlated to the level of per capita income although not conclusive these findings lend support to our contention

the bounds test approach for cointegration and causality between financial development international trade and economic growth the case of cyprus this study employs the bounds test for co integration and granger causality tests to investigate the long run equilibrium relationship and the direction of causality between financial development international trade and real income growth for the cyprus economy the results of the study reveal that financial development as measured by broad money m2 international trade and real income growth are cointegrated thus a long run equilibrium relationship can be inferred among these three variables on the other hand granger causality test results suggest that in cyprus the growth in real income stimulates the growth of international trade both exports and imports and the growth of money supply furthermore growth in imports of goods and services also stimulates a growth in exports of goods and services of cyprus although this result contradicts our initial expectations it indicates the importance of capital inflows in cyprus that plays a major role in financing the investments mainly in the tourism

regulation market structure and hospital costs during the past decade a host of studies of hospital costs have appeared in the literature these papers have led to several fundamental advances in our understanding of the nature of hospital costs yet despite these advances considerable controversy remains about the impacts of regulation and market structure on hospital costs for instance proponents of certificate of need con regulation have argued that the effects of regulating hospital capital expansion programs will be to reduce if not eliminate what is seen as a chronic tendency on the part of hospitals to over build others for example sloan and steinwald 14 have argued that con regulation has generally not reduced costs and may have actually increased hospital costs in cases where con regulation has been designed primarily to control bed expansion the purpose of this paper then is to shed light on some of these unresolved issues surrounding the impacts of regulation and market structure on hospital costs with the benefit of a more general theoretical approach and a novel data set we determine that in recent years con regulation has acted to constrain hospital bed growth and hospital costs while market concentration acts ceteris paribus to increase firm costs

natural resources national income and economic growth in africa abstract because standard measures of aggregate income such as gross domestic product gdp do not account for natural resource depletion their use as gauges of economic performance tends to exaggerate the benefits of resource extraction accounting for natural resource depletion in 18 african countries indicates different patterns of growth than those suggested by gdp figures use of the revised measures in analyses of the link between exports and growth suggests that export expansion may generate increases in measured gdp without stimulating increased production in contrast real exchange rate alignment is correlated with growth in both conventional gdp and the revised accounts

tourism as a long run economic growth factor the spanish case this paper examines the role of tourism in the spanish long run economic development the tourism led growth hypothesis is confirmed through cointegration and causality testing the results indicate that at least during the last three decades economic growth in spain has been sensible to persistent expansion of international tourism the increase of this activity has produced multiplier effects over time external competitivity has also been proved in the model to be a fundamental variable for spanish economic growth from the empirical analysis it can be inferred the positive effects on income that government policy in the adequacy of supply as well as in the promotion of tourist activity may bring about

the contribution of tourism development to economic growth in the korean economy abstract this study investigates the causal relations between tourism growth and economic expansion for the korean economy by using engle and granger two stage approach and a bivariate vector autoregression var model two principle results emerge from this study first the results of a cointegration test indicate that there is no long run equilibrium relation between two series second the outcomes of granger causality test imply the one way causal relationship of economic driven tourism growth the hypothesis of tourism led economic growth is not held in the korean economy this consequence is supported by testing the sensitivity of causality test under different lag selections along with the optimal lag

hospital technology in a nonmarket health care system 1 introduction the theoretical framework relating to the production of health services by hospitals is similar to that of any other firm economists are concerned with much the same issues in the measurement of output in the health sector as in other spheres of production foremost among these is the shape of the production function that underlies the transformation of inputs into outputs since it determines the optimal size and structure of the production unit in this case hospitals based on a 12 year panel of all short term hospitals in quebec covering 1981 through 1992 this research examines the health care production process the approach is new in that it examines hospitals in a noncompetitive socialized framework and relies on a very complete hospital sector data set to avoid biases often present in previous work all quasi fixed inputs physicians equipment and buildings all variable inputs labor drugs food for inpatients supplies energy and an aggregate of other inputs and all outputs inpatient care outpatient care food and laundry services sold to the public laboratory services to outpatients or under contract and teaching are included in the estimation determining the optimality of the hospital industry structure in quebec is important for at least two reasons first hospital investment decisions in quebec are centralized planners can determine the optimal hospital structure only if they have knowledge of the hospital production process second the absence of a competitive market precludes the usual adjustments driven by competitive pressures from taking place diseconomies of scope or scale highly unlikely in a competitive market might be present large and persistent in a nonmarket structure in quebec hospitals are most often private not for profit institutions however the quebec government that controls the national health insurance system is their only payer except for very small revenues from hospital private foundations or uninsured services such as cosmetic surgery some laboratory tests etc these private payments to hospitals represent negligible amounts as a result the system operates very much as if hospitals were in fact public entities collective bargaining occurs with the government reimbursement rates are determined by the government and major investment or merger decisions equipment purchase or new construction are approved by the government the present analysis provides a framework to gather information valuable to planners in any publicly funded system as they restructure hospital health services delivery in quebec the government could also better respond to changes in relative input prices through changes in relative input use review of its reliance on private laboratory analysis services or toughening of its medical school admissions policies in the early 1990s and without the benefit of an analysis such as this one the quebec government froze health care spending closed a number of hospitals changed hospitals role from short term care to long term care and decentralized its structure through regional boards regies regionales some of the unintended consequences included crowding in hospitals a near breakdown of emergency care during the first months of each year since and few if any gains in efficiency our analysis provides an exploration of the structure of hospital production in a nonmarket environment in anticipation of unavoidable restructuring of the industry in the years to come it also suggests a management tool for planners to direct the industry toward greater economic performance through changes in hospitals relative budgets changes in the scope of services offered or mergers between establishments this article examines the optimality of size diversification capitalization levels and technological change as well as the flexibility in the choice of inputs and outputs it identifies the hospital and delivery structure characteristics associated with greater performance

vector autoregression cointegration and causality testing for causes of the british industrial revolution the existence timing and possible causes of the british industrial revolution are considered by investigating the time series properties of industrial production and various explanatory variables utilising two types of robust cointegration based causality tests we argue that domestic forces notably technological progress shaped the industrial revolution whereas overseas trade expansion was mainly a consequence of industrial growth results from granger type var tests are contrasted with those of toda and phillips working paper 91 07 university of western australia 1991b where the latter manifest some of the potential problems raised by the authors when applied to a data set of this type an understanding of the possible causes of the first industrial revolution may shed more general light on the forces promoting industrialization and growth to the extent that the first industrial revolution offers a template exports appear not to provide a simple pathway to industrialization

exports and growth is the export led growth hypothesis valid for provincial economies this paper re examines the export led growth hypothesis using provincial data unlike other studies that concentrate on country level data this study investigates the validity of the hypothesis for four largest provinces in korea seoul kyunggee kyungnam and pusan the causal implication of the export led growth hypothesis is generally supported for all provinces in the sample the framework of analysis is two and four variable autoregressive models that include provincial exports provincial output terms of trade and national output shocks granger causal orderings from exports to output growth are generally supported in bivariate causal models in multivariate models variance decompositions and impulse response functions further indicate that export growth has a significant impact on output growth for all provinces although a feedback effect from output to export growth appears in seoul and the kyungnam province

national product related welfare measures in the presence of technological change externalities and uncertainty the purpose of this paper is to discuss under what conditions welfare can be measured by observables related to the national product or hamiltonian along the optimal trajectory under nonattributable technological or environmental change welfare will depend on time itself meaning that the hamiltonian along the optimal trajectory will be a biased measure of welfare this result will also hold if we make the time dependence of welfare endogenous by replacing technological change will externalities that are not internalized during optimization on the other hand if we take the externalities fully into account then the hamiltonian will represent the appropriate measure of welfare similar results also hold in the case of uncertainty where we show that a generalized hamiltonian provides a welfare measure and that the deterministic measures are special cases of their stochastic counterparts

exports investment efficiency and economic growth in ldc an empirical investigation this study seeks to analyse the relationship between exports and growth for 19 less developed countries it utilizes multivariate causality analysis based on the error correction model to address several important hypotheses the results indicate that when exports have a causal influence in the development process that in general this is the result of their effect on both efficiency and accumulation in addition improvements in output and capital accumulation in an economy seem to have just as much of an influence on exports as exports have on output and capital accumulation finally the growth process in east asia seems to be quite different from that in southeast asia

estimating a non minimum cost function for hospitals hospital costs have been rigorously scrutinized by economists and health policy experts for several decades despite the large volume of research two related problems persist first although theoretical models of hospital behavior such as 9 and 10 suggest systematic deviations from cost minimization there has been little attention given to modelling and measuring this inefficiency second because cost minimization is a questionable maintained hypothesis most hospital cost research has not used cost functions that are dual to production technology consequently the technological concepts of scale and factor substitution are obscured we address these twin problems by developing and estimating a long run cost function that allows for systematic allocative inefficiency the parameter estimates we present also provide information on the traditional production concepts of scale and factor substitution as well as information on the size and source of allocative inefficiency in u s hospitals hospital services clearly comprise a large industry short term hospital expenditures were 120 billion in 1984 for example the u s short term hospital sector has increased in relative size by a factor of 2 5 since 1960 so that short term hospital expenditures are now about 3 6 percent of the gnp in the united states while industry size alone probably justifies an empirical investigation into the production technology for hospital services we are also motivated by the relevance of our findings to several health policy issues measures of scale economies are crucial in forming public policies concerning entry exit and mergers in the hospital industry yet most studies have not actually estimated the technological concept of scale elasticities of factor substitution are also technological and economic concepts that should be of interest to health policy makers these measures indicate the extent to which cost increases can be avoided by substituting away from the factor whose price has increased hospital cost estimates that do not include factor

food marketing and pricing policy in eastern and southern africa a survey abstract this article surveys the empirical record of grain marketing and pricing policy in eastern and southern africa over 1930 1995 the paper addresses five key issues with major implications for food policy throughout africa a why the anticipated supply response to market liberalization has not yet occurred b why the common assumption of state taxation of farmers to support a cheap food policy does not apply in most of the countries in the region c why the temporary successes of the state led approach to stimulating smallholder grain production were unsustainable d why the elimination of government food subsidies associated with market reform has not adversely affected consumers and e why the fiscal cost of the marketing systems at least initially worsened rather than improved after the reforms were implemented in most countries the key future challenges for marketing policy are how to develop coordinated and financially sustainable input finance and commodity marketing systems for raising productivity growth in smallholder agriculture while overcoming inherited agricultural dualism and how to mitigate the effects of food price instability in a cost effective manner

is the export led growth hypothesis valid for australia the relationship between exports and output is examined using australian annual data over the period 1900 1993 cointegration and causality testing fails to detect the existence of a long run or short run relationship between the two variables these results are explained by restoring to the structural time series modelling approach which shows that while the output series exhibits cyclical variation the exports series does not have this property it is concluded that the export led growth hypothesis is not valid for australia

exploring hospital production relationships with flexible functional forms this paper estimates a multiproduct variable cost function using data on a sample of california hospitals the results provide useful insights into the advantages and disadvantages of flexible functional forms for cost analysis the translog function appears to provide reasonable estimates of marginal costs when evaluated at or near the approximation point of the function the estimated function performs less satisfactorily however when evaluated outside this range the paper s results do not provide strong evidence of either ray scale economies or of weak cost complementarities there is some evidence however that the degree of scale economies may be underestimated

cointegration causality and export led growth in mexico 1895 1992 abstract cointegration and granger causality tests show that real exports and real gdp in mexico over 1895 1992 were cointegrated and there was a significant and positive granger causal relationship running from exports to economic growth

causality between exports and economic growth abstract this paper utilizes granger causality tests in investigating the relationship between exports and national income from a consistent data set for 47 developing countries in africa new empirical results as well as suggestions for future research are presented

causality between export growth and industrial development empirial evidence from the nics abstract this paper investigates the causal relationship between export growth and industrial development in eight newly industrializing countries nics results of sims causality test show that for most of the nics there is a strong bidirectional causality between the growth of exports and industrial development these findings support the export led growth strategy in that expansion in exports not only promote the growth of national income but also lead to structural transformation of the developing countries

hospital performance in a noncompetitive environment in this article we perform a quantitative analysis of the performance of hospital services in a nonmarket environment based on a very complete data set evaluating efficiency in a nonmarket system is important since the absence of market mechanisms could yield large inefficiencies in fact we show that hospital performance varies greatly across institutions specifically our results suggest that hospitals with high levels of quasi fixed factors are less efficient than other institutions in general hospitals performed very differently even after controlling for differences in services hospital and patient characteristics all in all increased efficiencies could lead to potential savings for the quebec government in the hundreds of millions of dollars

distributional effects of maize self sufficiency in zimbabwe implications for pricing and trade policy abstract maize self sufficiency has normally been an explicit policy goal throughout eastern and southern africa because of the perception that it could be achieved at prices below import parity and that it contributes to rural income growth however this analysis based on household survey data from zimbabwe and the results of an econometrically based simulation model indicates that a pricing policy geared towards maize self sufficiency would mainly benefit a small set of well off farmers and require either greater subsidies or higher prices to consumers many of whom are low income rural farmers in low rainfall areas the broader implications of this analysis are that even if the producer price needed for self sufficiency is below import parity the pursuit of food self sufficiency may inflate food costs and exacerbate rural and urban food insecurity compared to a self rellance policy involving imports

natural resources national accounting and economic depreciation abstract the current value hamiltonian in an aggregate optimal growth problem with heterogeneous capital stocks including exhaustible renewable and environmental stocks is the nnp function routine substitutions reveal that the using up of natural resource stocks is representable as easy to interpret economic depreciation magnitudes we obtain true nnp inclusive of natural resource stock diminution implications for actual national accounting practices are also discussed

causality between foreign investment and spillover efficiency while there is considerable evidence on the observed linkage between foreign investment and technical efficiency of the developing countries the question of causality between them has not been investigated this paper re examines the relationship between foreign direct investment and technical efficiency in mexico brazil chile singapore and zambia using granger causality tests the results suggest that foreign direct investment and labour productivity are causally independent variables however capital formation of the host country is found to exert causal influence on foreign investment

export expansion and economic growth testing for cointegration and causality this paper develops a multivariate error correction model to test the causality between exports and growth in 15 asian countries 1967 91 the underlying series are tested as non stationary in levels but stationary in first differences the causal factors are cointegrated in five of these countries only causality test results indicate that export expansion causes growth in two third of these countries corrected for simultaneity between the causal factors a country with a large public sector higher level of economic development and which is less vulnerable to external economic shocks is more likely to reap the benefits of export promotion strategies the causal inferences are fairly stable over the sample period

export and production growth evidence from three major wheat exporters of australia canada and the united states this article investigates the robustness of the relationship between export and production growth for three major wheat exporters australia canada and the united states from 1966 to 2000 combining production international trade and development theories a four variable production exports producer price and imports vector autoregressive moving average varma model is developed for each country the causality results show that the hypothesis of export led development is supported by these three major players in the international wheat trade though a bi directional causality is found for canada and the usa variance decomposition and impulse response functions are employed to further investigate the effects of macroeconomic shocks

impacts in uganda of rising global food prices the role of diversified staples and limited price transmission this study assesses the potential impact of rising world food prices on the welfare of ugandan households while uganda experienced sharply higher food prices in 2008 as a landlocked food exporting country the causes of those price changes were mainly regional and indirect rather than directly transmitted from global markets using trade volumes food prices and household survey data we describe how uganda unlike some other countries is partially shielded from direct impacts of global food price movements although the majority of ugandans are net food buyers the adverse impact at household level of rising global prices is moderated by the relatively large quantity and range of staples consumed that come from home production moreover several of these are not widely traded some population groups in uganda are vulnerable to rising food prices however primarily those for whom maize is an important staple including those dependent upon humanitarian relief and the urban poor only a relatively small group of ugandan households will benefit directly and immediately from rising food prices the significant net sellers of food crops constituting between 12 and 27 of the population in this assessment we do not estimate the level and extent of wider second round effects from these higher prices jel classification q18 r22

does the resource curse hold for growth in genuine income as well summary existing studies analyzing the so called resource curse hypothesis regress growth in gross domestic product gdp on some measure of resource intensity this is problematic as gdp counts natural and other capital depreciation as income deducting depreciation from gdp to arrive at genuine income we test whether the curse still holds true we find supporting evidence but the growth disadvantage of resource intensive economies is slightly weaker in terms of genuine income than gdp we suggest that this provides additional but somewhat weak and limited evidence in support of those who argue that the curse is partly due to unsustainable overconsumption

export led growth and structural change evidence from malaysia many studies have tried to establish the causal link between export expansion and economic growth this contribution is to recognize that structural changes will change the sources of growth and this will affect the export growth relationship a country case study approach is used focusing on malaysia a country with one of the world s highest sustained growth rates and a long history of commodity trade we use var analysis of malaysian quarterly trade and gdp growth from 1965 to 1996 trade data are disaggregated into primary and manufactures exports and causality tests are applied to the entire period as well as two subperiods 150 the 1965 1501980 period when policy emphasis was on import substitution and the 1981 1501996 period when policies favoured export led growth statistical tests confirm export led growth for the full period and for the period to 1980 but tests on the 1981 1501996 period show growth causing exports primary exports had a stronger direct impact on economic growth than manufactu

a dynamic migration model with uncertainty we study a dynamic version of the harris todaro migration model where a finite population of infinitely lived bayesian agents choose consumption and migration decision rules as a function of their histories the agents do not know the production functions in the two sectors and learn about them through wage draws that they receive from the stochastic production functions the government knows the true production functions but is uninformed about the agents beliefs and the actual wage draws they observe the government maximizes its welfare function using wage subsidies in the two sectors and a migration tax we solve the agents dynamic programming problem and then use the solution to solve the government s dynamic programming problem we study the effects of government policies on the population distribution and illustrate the model by numerically solving a particular parametric example

relationship between agricultural growth and farm imports in ldcs a sims causality test based on 35 countries abstract previous empirical studies on the relationship between agricultural growth and farm imports in the ldcs suffer from serious methodological defects which to some extent may invalidate their results and interpretations this study used sims causality test to examine interactions between agricultural output and agricultural imports for 35 ldcs individually it was found that there was no causality from agricultural output to agricultural imports for a majority of countries under study for countries where agricultural growth did have a causal effect on agricultural imports the effect was positive in some countries and negative in others

export instability and the domestic economy questions of causality the conventional view concerning the impact of export instability on the domestic economies of developing countries is one of pessimism export instability is thought to adversely affect the short run stability and longer run growth of income empirical evidence on these matters is however inconclusive this article applies a granger sims reduced form approach to examining whether export instability generates short run instability in domestic income for each of a sample of 20 trade dependent countries the results obtained strongly support the contention that export instability induces short run macroeconomic instability

tourism trade and growth the case of cyprus although the relationship between international trade and economic growth has found a wide application area in the literature over the years this can not be said about tourism and growth or trade and tourism this study employs the bounds test for cointegration and granger causality tests to investigate a long run equilibrium relationship between tourism trade and real income growth and the direction of causality among themselves for cyprus results reveal that tourism trade and real income growth are cointegrated thus a long run equilibrium relationship can be inferred between these three variables on the other hand granger causality test results suggest that real income growth stimulates growth in international trade both exports and imports and international tourist arrivals to the island furthermore growth in international trade both exports and imports also stimulates an increase in international tourist arrivals to cyprus and finally real import growth stimulate growth in real export

exports imports and economic growth in south korea and japan a tale of two economies this article investigates the relationship between exports imports and economic growth for south korea and japan by constructing a vector autoregression var model causality is examined between real gross domestic product gdp real exports and real imports several principal results emerge from the empirical work first the three variables are cointegrated for both countries implying that a long run steady state exists second there is evidence of bidirectional causality between imports and economic growth for both countries finally japan seems to experience export led growth while gdp growth in south korea has a negative effect on export growth these contrasting findings could result from export goods in japan exhibiting greater nonprice competitive aspects although their success fails to trigger a virtuous circle since growth fails to lead to increased exports while for south korea output growth leads to a decrease in export growth suggesting a strong domestic market

can trade liberalization stimulate economic growth in africa abstract this paper examines changes in economic growth that are likely to result from changes in trade policies exports and investment in 12 sub saharan african ssa countries using a vector error correction model vecm our results indicate that trade policies exports and investment rate shocks have a significant impact on economic growth in 10 of the 12 ssa countries this suggests that it is possible to stimulate economic growth in some african countries through an outward looking strategy of export expansion more significantly the results further suggest the importance as well as the need for african countries to embark on trade liberalization policies in order to enhance economic growth in the current world economy

unit roots and cointegration in estimating causality between exports and economic growth empirical evidence from the asean countries abstract this paper utilizes cointegration and error correction representation methodology in estimating the long run behavioral relationship between exports and economic growth in the asean countries

growth and exchange rate volatility a panel data analysis the aim of this article is to assess the role of real exchange rate rer volatility on long run economic growth for a set of 82 advanced and emerging economies using a panel data set ranging from 1970 to 2009 with an accurate measure for exchange rate volatility the results for the two step system generalized method of moments gmm panel growth models show that a more less volatile rer has a significant negative positive impact on economic growth the results are also robust for different model specifications

the real exchange rate and macroeconomic performance in sub saharan africa abstract pooled time series and cross section data for 33 countries in sub saharan africa ssa confirm the negative relationship between the real exchange rate rer misalignment and economic performance economic growth imports exports saving and investment macroeconomic instability also slows growth and other indicators of performance higher levels of misalignment are accompanied by higher levels of macroeconomic instability both lower levels of rer misalignment and instability lead to better economic performance the edwards model of rer determination performs well for the region black market premia tend to show a greater degree of misalignment in rer than alternative measures

is market liberalization compatible with food security storage trade and price policies for maize in southern africa abstract concern for the negative impacts of staple food price fluctuations limits the extent to which governments in low income countries are willing to liberalize their agricultural markets these concerns are legitimate as such price fluctuations can lead to high transactions costs for poor consumers in the short run and low growth in the long run however past government attempts to stabilize food prices completely have been expensive and ineffective use of a dynamic programming optimization model suggests that a different type of policy regime could reduce price variability significantly compared to what would prevail in free markets and could accomplish this at relatively low cost this policy regime includes allowing some official price flexibility with respect to changes in production and world price exporting when regional market opportunities exist and holding considerably lower stocks than in the past

re examining export led growth hypothesis a multivariate cointegration analysis for india this paper re examines the export led growth elg hypothesis using a vector autoregressive var model by considering the relationship between real gdp real exports and terms of trade for india during the period 1961 93 in re examining the elg hypothesis this study perhaps for the first time employs a multivariate framework using johansen s model selection and maximum likelihood cointegration procedure the results sugest that there is one long run equilibrium relationship among the three variables and the causal relationship flows from the growth in gdp and terms of trade to the growth in exports the causality from exports to gdp appears to be a short run phenomenon suggesting that the recent export promotion strategies adopted in india have the potential of bearing growth in the future

exports growth and causality in developing countries abstract previous empirical studies have interpreted results in regressions of output variables on export variables as providing support for an export promotion development strategy such an interpretation is questionable since these regressions provide no means of determining the direction of causality this paper performs causality tests between exports and growth for 37 developing countries the results cast considerable doubt on the validity of the export promotion hypothesis

maize market reform in zimbabwe abstract a major constraint on the design and implementation of grain market liberalization throughout the world is governments concerns with retaining enough influence over the evolving system to distribute prices and incomes to various groups in politically desired ways this article considers the effects of alternative forms of maize market reform on various socioeconomic groups and the marketing board s operations in zimbabwe based on results of a dual market spatial equilibrium model partial and more complete reform create substantially different distributional effects however urban consumers and many rural small holders would be better off with either consumers and many rural small holders would be better off with either configuration of market reform consi prices the full benefits of market reform require active government support for the development of private trade

agricultural exports and economic growth in less developed countries this article examines the contribution of agricultural exports to economic growth in less developed countries ldcs a sources of growth equation is developed from a dual economy model where agricultural and nonagricultural sectors are both divided into export and nonexport subsectors this is then estimated using panel data for 62 ldcs for 1974 1995 results provide evidence that there are significant structural differences in economic growth between low lower middle and upper income ldcs investment in the agricultural export subsector has a statistically identical impact on economic growth as investment in the nonagricultural export subsector the marginal productivities in nonexport subsectors are over 30 lower than those in respective export subsectors from a policy perspective the results suggest that export promotion policies should be balanced

non transboundary pollution and the efficiency of international environmental co operation abstract the standard view is that situations where no transborder environmental externalities occur are most efficiently dealt with by national environmental policies rather than by international co operation though this may be the general case non coordinated national policies do not always produce the most efficient international allocation this paper presents four cases in which the allocative outcome of non coordinated domestic policy choices can be improved upon by international environmental co operation the first case refers to the use of environmental policy as a strategic trade instrument the other cases refer to the existence of discrete technologies set up costs and increasing returns to scale the form of international environmental co operation should be adapted to the situation formal international agreements between countries are characterised by high transaction costs and may not always be the most efficient form of co operation