structural change in urban chinese food preferences we undertake a range of tests for structural food preference change in urban china using provincial level panel data from 2002 to 2010 we introduce a time transition function into the generalized quadratic almost ideal demand system gqaids to represent consumer preferences we apply this system to evaluate the demand structure for seven food groups the use of the gqaids specification relaxes many empirical demand system restrictions associated with previous analyses of structural preference change our findings suggest that chinese food preferences are continuing to evolve

fuel demand elasticities for energy and environmental policies indian sample survey evidence india has been running large scale interventions in the energy sector over the last decades still there is a dearth of reliable and readily available price and income elasticities of demand to base these on especially for domestic use of traditional fuels this study uses the linear approximate almost ideal demand system la aids using micro data of more than 100 000 households sampled across india the la aids model is expanded by specifying the intercept as a linear function of household characteristics marshallian and hicksian price and expenditure elasticities of demand for four main fuels are estimated for both urban and rural areas by different income groups these can be used to evaluate recent and current energy policies the results can also be used for energy projections and carbon dioxide simulations given different growth rates for different segments of the indian population

british tourism demand elasticities in mediterranean countries we use the almost ideal demand system aids model developed by deaton and muellbauer 1980 to estimate tourism demand elasticities for a number of mediterranean countries cyprus greece italy malta portugal spain and turkey in relation to tourists originating from the united kingdom during the period 1963 to 2009 using the restrictions imposed by theory we find that the model is able to explain developments in market shares reasonably well despite the large and at times sudden changes in market shares over the sample period our share estimates indicate that while spain and portugal managed to keep a stable market share over time malta and especially italy lost market share to cyprus greece and turkey overall we observe that italy and spain have the lowest own price elasticities whereas greece portugal spain and turkey are expenditure inelastic holiday destinations we also improve over the traditional treatment of the aids model in the literature by studying the stability of the estimat

time varying parameters in the almost ideal demand system and the rotterdam model will the best specification please stand up this article assesses the ability of the rotterdam model rm and of three versions of the almost ideal demand system aids to recover the time varying elasticities of a true demand system and to satisfy theoretical regularity using monte carlo simulations we find that the rm performs better than the linear approximate aids at recovering the signs of all the time varying elasticities more importantly the rm has the ability to track the paths of time varying income elasticities even when the true values are very high the linear approximate aids not only performs poorly at recovering the time varying elasticities but also badly approximates the nonlinear aids

the political economy of inflation bargaining structure or central bank independence the causes of inflation are commonly analyzed as the function of either the organization of wage bargaining or the independence of the central bank although these explanations are widely treated as competing recent evidence suggests that there may be merit to both arguments this paper presents a game theoretic model of wage bargaining and monetary policy making that shows why the two institutional causes are not only complementary but elements of a more encompassing logic the empirical superiority of this synthesizing model is demonstrated by reanalyzing data used in al marhubi and willett 1995 and by presenting new evidence

stock dynamics for forecasting material flows case study for housing in the netherlands abstract this article discusses the role of lifestyle in physical material accounting and introduces a new method for simultaneously determining national or regional resource demand and waste generation through estimations of the population and its lifestyle which is manifested in the stocks of service providing goods their composition and lifetimes improving our comprehension of the stocks in use is essential for environmental policy making because 1 they are becoming the most important resource providers 2 they are important drivers for resource and energy consumption as well as waste and emission generation and 3 their magnitudes and dynamics are the parts of the material cycles that is usually least understood a generic dynamic material flow analysis model is presented and applied for the diffusion of concrete in the dutch dwelling stock for the period of 1900 2100 simulation results are illustrated for a standard scenario and a parameter variation the results show that 1 construction and demolition flows follow a cyclical behaviour 2 the cycles of construction and demolition flows are phase displaced in the first half of the 21st century with decreasing construction and increasing demolition and 3 growth of the dwelling stock is becoming increasingly more material intensive as a growing amount of material is used for replacements the presented stock dynamics approach can principally be applied for any anthropogenic material stock however it is most useful for the examination of metabolic consequences of diffusion processes of durable and fixed capital stocks

the economics of worldwide stagflation the last fifteen years have witnessed dramatic changes in economics not only in the manner in which the economics profession views economics but also in the manner in which the general public views economics and economists by the late 1960 s there had emerged more or less a consensus macroeconomic framework that is an agreed upon structure to be used to study economic problems at the aggregate level robert solow stated as quoted in leijonhufvud 1968

the anti inflationary influence of corporatist structures and central bank independence the importance of the hump shaped hypothesis many studies have found strong negative correlations between central bank independence and inflation but the casual significance of this relationship is often challenged we find that the negative relationship remains even when a number of other explanatory variables are considered special attention is given to the role of corporatism following calmfors and driffell it is argued that both high and low levels of centralization should be associated with lower inflation we present empirical support for his hump shaped hypothesis and find that the inclusion of corporatism does not diminish the significance of central bank independence

material use and material efficiency in latin america and the caribbean different world regions have followed very different trajectories for natural resources use over the recent decades latin america has pursued a development path based largely on exports of primary resources adopting this path has characteristic environmental and social impacts in this paper we provide the first broad based estimate of material use and material efficiency for the region beginning in 1970 and extending to the onset of the global financial crisis in 2008 the results show a region with rapidly growing primary materials consumption which is simultaneously becoming less efficient at converting those resources into national income using an ipat framework we found that population growth and rising per capita incomes made comparable contributions to growing material use while technological change as reflected in material intensity did not moderate consumption increasing materials intensity observed for the region as a whole is also observed for most individual countries this contrasts with some other world regions and implies that many countries in latin america and the caribbean will confront higher environmental pressures than expected when expanding their extractive industries to take advantage of new demand from other world regions while simultaneously supplying the requirements for their own domestic industrial transformations and urbanization

demand for food fats and oils the role of demographic variables and government donations a systems model of u s food fats and oils demand is estimated using quarterly time series data for the period 1962 87 demographic scaling is used to incorporate demographic variables and per capita government butter donations in addition to price income and demographic demand elasticities dietary fat intake elasticities are calculated for each of the demographic characteristics included in the study all of the five own price elasticities are statistically significant as are fifteen of the twenty cross price elasticities fourteen of the fifteen demographic elasticities are statistically significant

economic growth and the evolution of material cycles an analytical framework integrating material flow and stock indicators abstract understanding the relationship between material cycles and economic growth is essential for relieving environmental pressures associated with material extraction production and consumption we developed an integrated analytical framework of dematerialization analysis incorporating both material flow and stock indicators a four quadrant diagram is designed to classify different stages of dematerialization based on the elasticity of material flow stock to economic output or well being we then conducted a case study on the long term evolution of aluminum cycle in the u s and found that different material flow and stock indicators decoupled from gross domestic product gdp growth in a clear sequential pattern flows closer to the beginning of the aluminum cycle e g primary aluminum production decoupled from gdp earlier than flows closer to the final consumption stage e g consumption of final products in use stock of aluminum decoupled from gdp much more slowly than any flow indicator and had just reached the status of relative decoupling around 2000 this phenomenon is determined by the fact that different causes of dematerialization such as import substitution and secondary material recycling take effect at different stages of economic development comprehensive understanding of dematerialization depends on in depth analysis on material economy relationships from an integrated stock and flow perspective

conceptual and functional form issues in estimating demand elasticities for food in estimating demand elasticities for food we must choose a functional form for the statistical model because this choice can have untoward consequences for the user king we seek a form which does not impose undue restrictions on the estimated demand elasticities statistically we seek a functional form which gives close approximations to the elasticities of interest in this connection gallant 1981 1982 points out that the key consideration is the method of approximation there are two taylor s series and fourier series methods the problem with taylor s theorem is that it applies only locally on a region of unspecified size this method can yield testable implications of the theory at the point of approximation but this point is in general unknown and may not even be in the range of the data caves and christensen white moreover the approximation error from taylor s series can be large for small departures from the unspecified point of expansion white in short there is nd guarantee that taylor s theorem will give close approximations at any point in the sample gallant 1981 thus there is no assurance that even the recently popularized locally flexible functional forms translog generalized leontief almost ideal demand system will give close approximations to the true demand system

are there halo effects of us grain export promotion the objective of the research reported in this article is to examine both the own and cross effects of us export promotion for us and non us grains we focus on two previously neglected dimensions of the cross effects first we examine whether a halo effect i e promotion for one us commodity positively effects demand for another us commodity for us commodities exists second we look at whether us grain export promotion has public goods characteristics that is does us grain promotion have a halo effect on grain demand for other countries we use a linear approximation of an almost ideal demand system la aids model for us and non us rice wheat and sorghum that include us export promotion as one of the explanatory variables our goal is to provide further empirical evidence for the halo effect issue by using us grains as a case study since this sector has not been previously explored in addition to estimating own and cross export promotion elasticities the magnitude of cross effects on us market s

lithuania s food demand during economic transition the linear approximate version of the almost ideal demand system la aids model is estimated using data from the lithuanian household budget survey hbs covering the period from july 1992 to december 1994 price and real expenditure elasticities for 12 food groups were estimated based on the estimated coefficients of the model very little or nothing is known about the demand parameters of lithuania and other former socialist countries so the results are of intrinsic interest estimated expenditure elasticities were positive and statistically significant for all food groups while all own price elasticities were negative and statistically significant except for that of eggs which was insignificant results suggest that lithuanian household consumption did respond to price and real income changes during their transition to a market oriented economy

household demand for convenience and nonconvenience foods states the budget shares are generally more responsive to prices than to real total expenditure additionally the quantities demanded of convenience and nonconvenience foods are generally more sensitive to changes in income and own prices than to changes in cross prices with regard to demographic variates primary users of convenience foods are white households with employed household managers less than 35 years of age

on price indices in the almost ideal demand system a number of papers have discussed the relationship between the almost ideal demand system aids and its linear approximation la aids in this paper it is shown that if the prices in the system are normalized to one the aids and la aids representations are identical at the point of normalization also at the point of normalization the expressions for price and expenditure elasticities from both systems are identical

labour market institutions and economic performance labour markets richard freeman do particular types of labour market institution hold the key to economic success should other countries try to emulate the flexibility of the american labour market or the centralization of swedish style corporatism since 1970 within the oecd there has been a sharp divergence both of economic performance and of indicators of labour market structure the paper uses union density and the degree of wage dispersion across industries to proxy a country s underlying labour market institutions in assessing economic performance it is argued that cross country differences in output growth were much smaller than differences in employment growth for given output growth there is a clear negative relationship between employment growth and real wage growth across countries why do different countries find themselves at different points on this trade off the final part of the paper examines the correlation between indicators of labour market structure and the position on the wage employment trade off it concludes that the degree of wage dispersion across industries is the most important indicator of market structure and that countries with very high or very low dispersion typically the countries with highly centralized or highly decentralized bargaining in the labour market have better employment performance than countries with intermediate degrees of centralization and wage dispersion

determinants of inflationary performance corporatist structures vs central bank autonomy studies by economists have shown that countries with autonomous central banks experience lower inflation than others banian laney and willett 1983 and bade and parkin 1987 one reason for this may be that countries with autonomous central banks are less likely to monetize their deficits burdekin and wahar 1990 studies by political scientists have used measures of the strength of corporatist structures to explain macroeconomic outcomes cameron 1984 however neither economics nor political science research has employed measures of both central bank autonomy and the strength of corporatist structures to explain comparative inflation rates the present paper tests whether measures of corporatist structures and central bank autonomy explain the comparative inflation performance of eighteen industrialized countries this issue is of great importance for students of piecemeal monetary reform in countries where the central banking structure is susceptible to reorganization the results of this paper should inform parties who are active in the reformation and reorganization of central banks in lesser developed and nascent market economics throughout the world

the socio economic drivers of material stock accumulation in japan s prefectures physical economy research has thus far focused on the throughput of materials that underpin economic development the role of stocks of buildings and infrastructure has remained underexplored yet it is the physical stock that provides service to society to fill this gap this research investigates stock dynamics in japan in relation to population and economic drivers using panel regression and ipat analyses for the past five decades we recognize characteristic changes in the strength and relative influence of the drivers throughout time in different subnational regions and on the dynamics of buildings compared to transportation infrastructure we find that material stock accumulation mainly occurred due to growth in economic activity specifically by tertiary sector demand apart from a period of government driven stock accumulation in the 1990s to stimulate economic growth as economic and population growth slowed stock accumulation dynamics also changed signaling a new stock saturation trend migration from rural to urban areas has recently become an influential driver leaving behind underused buildings and roads this analysis provides a case study on how socio economic drivers and stock accumulation interacted and changed while the country matured which may have implications for understanding stock dynamics in rapidly industrializing economies

international comparison of resource use and its relation to economic growth the development of total material requirement direct material inputs and hidden flows and the structure of tmr abstract resource flows constitute the materials basis of the economy at the same time they carry and induce an environmental burden associated with resource extraction and the subsequent material flows and stocks which finally end up as waste and emissions a reduction of this material throughput and the related impacts would require a reduction of resource inputs and breaking the link between resource consumption and economic growth would require an increase in resource productivity material flow analysis mfa can be used to quantify resource flows and indicate resource productivity in this article we study the available empirical evidence on the actual de linkage of material resource use and economic growth we compare resource use with respect to total material requirement tmr and direct material input dmi for 11 and 26 countries respectively and the european union eu 15 the dynamics of tmr as well as of the main components are analysed in relation to economic growth in order to show whether there is a decoupling relative or absolute from gdp and a change of the metabolic structure in the course of economic development dmi cap so far only decoupled from gdp cap in relative terms that is in most countries it reached a rather constant level but with the exception of czech republic showed no absolute decline yet tmr cap was reduced in two high income countries and one low income country due to political influence changes in tmr were more influenced by hidden flows hf than by dmi we analyse the dynamics of the structure and composition of tmr in the course of economic development in general the economic development of industrial countries was accompanied by a shift from domestic to foreign resource extraction different relations can be discovered for the share of biomass fossil fuel resources construction resources and metals and industrial minerals

the european central bank independence accountability and strategy a review this paper reviews research on central banking and monetary policy with special emphasis on the position of the future european central bank nowadays it is often thought that an independent central bank with an explicit mandate to aim for price stability constitutes an important institutional device to assure price stability indeed the ecb will be one of the most independent central banks as follows from the codings of various indicators measuring legal independence still it does not follow straightforwardly from the literature that the statute of the ecb is optimal it is also argued that the accountability of the ecb is poorly arranged for in comparison with that of several national central banks finally the discussion about the monetary strategy of the ecb is reviewed

demand for beef and chicken products separability and structural change several studies have indicated that the recent shift from beef to poultry in consumption is not entirely caused by changes in rela tive prices or income braschler chavas dahlgran hudson and vertin moschini and meilke frank thurman most studies of structural change have focused on red meat consumption only thurman has looked closely at the poultry market and no one has considered poultry products yet the mix of chicken products marketed changed dramat ically during the last twenty years and should have influenced aggregate meat demand the share of broiler slaughter marketed as whole birds declined from 74 in 1965 to 28 in 1985 while cut up parts and processed chick en products increased from 26 to 72 whole birds are inferior goods and cut up parts and processed chicken are normal goods haidacher et al the shift in chicken prod uct mix away from whole birds should have increased the preference for total chicken in this article two related questions are ad dressed first do consumers allocate expendi tures among meats by animal origin or by product type second does disaggregation of meat into products in a meat demand model give insight into the causes of structural

applying theil s multinomial extension of the linear logit model to meat expenditure data one of the chief drawbacks of the multinomial extension of the linear logit model is that after the standard linearization the parameters which are directly estimated have no obvious economic meaning this paper presents alternative transformations which facilitate interpretation in one linearization the estimated coefficients will be elasticities at a selected data point such as the mean in another form the coefficients will be slutsky parameters the latter version is chosen for an empirical analysis of the demand for meat in great britain a number of issues concerning the model s error structure and dynamic specification are discussed

central banking as a political principal agent problem i introduction conventional wisdom holds that during election periods political leaders have incentives to misuse policy instruments to enhance their chances of reelection rogoff and sibert 1988 construct a rational political economy model of monetary policy based on this theme 1 the results of their model can be interpreted in the following way 2 society elects a leader every other period whose competence affects the level of output in the economy and private agents will tend to vote for the incumbent if the level of output is expected to be higher than that which can be provided by an unknown challenger voters have imperfect information regarding the politician s true impact on output and exogenous shocks to output and consequently cannot disentangle the effects of one from the other in an election period this asymmetry of information gives the incumbent an incentive to expand output through the use of inflationary monetary policy in order to appear more competent than he really is however rational voters are aware of this incentive to inflate and adjust their expectations such that in equilibrium no gain in output occurs and the economy suffers from excessive inflation an implication of the rogoff sibert model is that unless a society does away with elections as a way to choose policymakers excessive inflation and a political inflation cycle will be an unavoidable cost of democracy however societies can try and have tried to avoid these ill effects by taking the power of money creation away from the elected officials and giving it to an appointed independent central banker who will presumably pursue the public good but can this approach actually work the problem with this proposal is that the central bankers well being in many respects reappointment post central bank employment opportunities avoidance of public criticism etc often hinges on pleasing their political benefactors giving the central bankers incentives to act in the interest of elected officials 3 as a result the central banker could pursue objectives different from society s and may actually function as a veil for the elected policymaker in the real world this veil is not complete but partial and hence we can characterize the relationship between the monetary authority and society as a principal agent problem the advantage of delegating power to an appointed central banker and then erecting appropriate institutions is that the inflation problems may be resolved without abandoning the electoral process in this paper we develop a rational political business cycle model that starts from the foundations laid down by rogoff and sibert we depart from their model by having monetary policy delegated to a central banker who is appointed by the elected leaden the concern about reappointment is what motivates the agency problem the central banker would like to be reappointed and this desire leads her to partially accommodate the wishes of the current administration which in turn may not coincide with the desires of the electorate we then analyze the problem faced by a central banker who is concerned about her own selfinterest as well as social well being it is this feature that turns the setting of monetary policy into a political principal agent problem the contributions of our approach to modelling the agency problem of central banking are 1 it explicitly incorporates reappointment concerns into the decision process of the central banker which heretofore has not been done in the literature and 2 we explicitly model the source of the agency problem unlike previous research that simply assumes an agency problem exists our key results are as follows in equilibrium the pursuit of her own self interest leads the central banker to create a socially inefficient inflation bias while rogoff and sibert also obtain this result our explicit functionalform model allows us to analyze this bias in more detail and tie it directly to the strength of the relationship between the central banker and the current administration

the demand for international tourism in the mediterranean region the paper studies the demand for international tourism in the mediterranean region first a review of the most important attempts to model econometrically the demand for international tourism in the past is given followed by a formal presentation of the proposed theoretical model in particular a version of the almost ideal demand system aids is adopted and a description of the variables involved and their sources together with the estimation procedure are provided the diagrammatic analysis performed contributes to a better understanding of the evolution of the dependent variable over time the results with respect to the expenditure as well as to the own and cross price elasticities may be regarded as econometrically satisfactory and a reasonable economic explanation is given

growth in global materials use gdp and population during the 20th century the growing industrial metabolism is a major driver of global environmental change we present an assessment of the global use of materials since the beginning of the 20th century based on the conceptual and methodological principles of material flow accounting mfa on the grounds of published statistical data data compilations and estimation procedures for material flows not covered by international statistical sources we compiled a quantitative estimate of annual global extraction of biomass fossil energy carriers metal ores industrial minerals and construction minerals for the period 1900 to 2005 this period covers important phases of global industrialisation and economic growth the paper analyses the observed changes in the overall size and composition of global material flows in relation to the global economy population growth and primary energy consumption we show that during the last century global materials use increased 8 fold humanity currently uses almost 60 billion tons gt of materials per year in particular the period after wwii was characterized by rapid physical growth driven by both population and economic growth within this period there was a shift from the dominance of renewable biomass towards mineral materials materials use increased at a slower pace than the global economy but faster than world population as a consequence material intensity i e the amount of materials required per unit of gdp declined while materials use per capita doubled from 4 6 to 10 3 t cap yr the main material groups show different trajectories while biomass use hardly keeps up with population growth the mineral fractions grow at a rapid pace we show that increases in material productivity are mostly due to the slow growth of biomass use while they are much less pronounced for the mineral fractions so far there is no evidence that growth of global materials use is slowing down or might eventually decline and our results indicate that an increase in material productivity is a general feature of economic development

an error correction almost ideal demand system for meat in greece this paper represents a dynamic specification of the almost ideal demand system aids based on recent developments on cointegration techniques and error correction models based on greek meat consumption data over the period 1958 1993 it was found that the proposed formulation performs well on both theoretical and statistical grounds as the theoretical properties of homogeneity and symmetry are supported by the data and the lechatelier principle holds regardless of the time horizon beef and chicken may be considered as luxuries while mutton lamb and pork as necessities in the short run beef was found to have price elastic demand pork an almost unitary elasticity whereas mutton lamb chicken and sausages had inelastic demands in the long run beef and pork were found to have a demand elasticity greater than one whereas mutton lamb chicken and sausages still had inelastic demands all meat items are found to be substitutes to each other except chicken and mutton lamb and pork and chicken

reconsidering the principal components of central bank independence the more the merrier we use principal component analysis to reassess the link between different attributes of central bank independence and inflation performance we suggest that coding problems may account for the fact that almost none of the attributes included in the cukierman index has a systematic plausible relationship with inflation the multi faceted cukierman index also seems to be out performed by a much narrower index focusing solely on policy independence these findings point to the importance of using public choice analysis to isolate the real problem here namely finding specific central bank structures that effectively insulate central bankers from political pressures

central bank independence and macroeconomic performance some comparative evidence this note uses information on a sample of sixteen oecd countries to assess the relationship between central bank independence and macroeconomic performance as previous work suggests politically controlled central banks are more likely to pursue policies that lead to high and variable inflation however the authors find little evidence that political control of central bank policy has any impact on measures of the level or variability of growth unemployment or the ex ante real interest rate copyright 1993 by ohio state university press

patterns of change in material use and material efficiency in the successor states of the former soviet union the successor states of the former soviet union present a unique opportunity to study the changes in the socio metabolic profile of a cohort of nations which underwent a radical and contemporaneous shift in economic system that change was from being regions within an economically integrated centrally planned whole to being independent nations left to find their own place in the global economic system the situation of these nations since the dissolution of the soviet union provides a rare experiment in which we might observe the influence of the different starting conditions of each nation on the development path it subsequently followed and the attendant socio metabolic profiles which resulted here we take the opportunity to examine patterns for the region as a whole and for three individual countries we also examine the relative importance of three different drivers of material consumption using a version of the ipat framework finally an area for follow on investigation was suggested by a significant positive correlation observed between the economic growth of individual successor states and the degree to which they improved their material productivity this latter is of potential importance in assessing whether dematerialization acts primarily to accelerate or retard economic growth

the poultry market demand stability and industry structure the stability of the demand for poultry meat and specification issues in its estimation are explored the analysis concludes that the demand for poultry meat shifted out in the early 1970s at the same time the demand relationship between poultry and pork changed from substitution to independence a second conclusion is that poultry price is predetermined for demand in annual u s data while quantity is not a predetermined price suggests several market structures exogeneity tests are performed to distinguish among them the results are consistent with a competitive constant returns to scale industry facing elastic factor supplies

inflation and central bank independence a meta regression analysis using 59 studies we perform a meta regression analysis of studies examining the relationship between inflation and central bank independence cbi the studies considered are very different with respect to the cbi indicator used the sample of countries and time periods covered model specification estimators used and publication outlet we conclude that there is a significant publication bias however we also find a significant genuine effect of cbi on inflation differences between studies are not caused by differences in cbi indicators used

serial correlation and the fixed effects model this paper generalizes the durbin watson type statistics to test the ols residuals from the fixed effects model for serial independence also generalized are the tests proposed by sargan and bhargava for the hypothesis that the residuals form a random walk a method for efficient estimation of the parameters is also developed finally an earnings function is estimated using the michigan survey of income dynamics in order to illustrate the uses of the tests and the estimation procedures developed in this paper

elasticities in aids models comment green and alston have written two articles 1990 1991 for the journal on the correct method of calculating elasticities for the linear approximate almost ideal demand system la aids their articles are a departure from the typical approach to the la aids the la aids is generally used to estimate the parameters of deaton and muellbauer s almost ideal demand system aids the elasticity formulae for the aids are known green and alston s formulae are relevant only if the la aids is treated as a system in its own right such a treatment has merit however after checking the implications of treating the la aids as a system in its own right we discover that the la aids itself lacks merit

price formation of fish an application of an inverse demand system inverse demand systems explain price variations as functions of quantity variations they have properties analogous to those of regular demand systems there are very few examples of their empirical application in part this is due to lack of data for which price is the decision variable and the quantity given the case of fish landed at belgian sea ports appears to suit an inverse demand system well a rotterdam variant of such a system in estimated allais interaction intensities have been derived and show a reasonable pattern

global patterns of materials use a socioeconomic and geophysical analysis abstract human use of materials is a major driver of global environmental change the links between materials use and economic development are central to the challenge of decoupling of materials use and economic growth dematerialization this article presents a new global material flow dataset compiled for the year 2000 covering 175 countries including both extraction and trade flows and comprising four major material categories biomass construction minerals fossil energy carriers and ores industrial minerals first we quantify the variability and distributional inequality gini coefficients in international material consumption we then measure the influence of the drivers population gdp land area and climate this analysis yields international income elasticities of material use finally we examine the coupling between material flows and between income and material productivity measured in economic production per tonne material consumed material productivity is strongly coupled to income and may thus not be suitable as an international indicator of environmental progress a finding which we relate to the economic inelasticity of material consumption the results demonstrate striking differences between the material groups biomass is the most equitably distributed resource economically the most inelastic and is not correlated to any of the mineral materials the three mineral material groups are closely coupled to each other and economic activity indicating that the challenge of dematerializing industrial economies may require fundamental structural transformation our analysis provides a first systematic investigation of international differences in material use and their drivers and thus serves as the basis for more detailed future work

the economic value of improvements in beef tenderness by genetic marker selection a genetic simulation model is combined with an economic model of the u s beef industry to determine how consumer demand shifts resulting from bull and heifer selection strategies that improve steak tenderness affect economic profitability at four points in the beef supply chain the results indicate that a selection strategy in which bulls in the upper 30 of genetic merit are selected each year would result in increased profitability of 9 60 head for feeder cattle and 1 23 head for fed cattle in 20 years the net present value of the genetic improvement program is estimated to produce economic benefits of 7 6 billion

how countries resource use history matters for human well being an investigation of global patterns in cumulative material flows from 1950 to 2010 abstract global resource use has been expanding rapidly after 1950 and improved material living conditions and human well being of large parts of the global population we here apply a cumulative long term perspective to gain broader insights into the material requirements of human well being the role of trade and the history of environmental pressures than the usual perspective of annual or most recent flows would reveal furthermore we investigate environmental pressures expressed as cumulative extraction per area over the last 60 years to both ends we utilize cumulative data on material flows on domestic material inputs dmi and domestic extraction de for 148 countries from 1950 to 2010 and the social progress index we find that a high level of well being required at least 460 t cap of cumulative material inputs from 1950 to 2010 an analysis of the relation between cumulative flows and current human well being shows statistically significant that at similar levels of cumulative material inputs biophysical export orientation of a country has a weak negative influence on well being when the sustainable development goals are to be achieved the scientific community and policy makers have to consider the history of development of resource use to better understand the future challenges ahead

prices poaching and protein alternatives an analysis of bushmeat consumption around serengeti national park tanzania abstract the consumption of meat from wild animals or bushmeat occurs throughout africa and highlights the conflict between two distinct development goals food security and biodiversity conservation growing human populations throughout the greater serengeti ecosystem rely heavily on bushmeat as a source of protein which places pressure on migratory wildlife populations this paper uses unique data from protein consumption surveys from 131 households over 34 months in a generalizable empirical framework to estimate price cross price and expenditure elasticities of protein sources and analyze the potential economic effects of policies to mitigate bushmeat hunting and consumption results suggest that 1 directly increasing the price of bushmeat through enforcement or other policies to reduce supply will have the most direct and largest effect of bushmeat consumption 2 increasing income increases bushmeat consumption as well as consumption of other meat sources 3 if surrounding fisheries experience a negative shock or collapse this will lead to a dramatic increase in bushmeat consumption overall these results strongly indicate that policies to reduce bushmeat hunting while maintaining food security must be considered in a broad and comprehensive framework

checks and balances and the supply of central bank independence abstract the paper analyzes the institutional conditions under which policymakers can credibly commit to an independent central bank and thereby mitigate the well known time consistency problem in monetary policy it is shown theoretically that granting independence via a statute is only credible for legislative systems with at least two heterogeneous decision making bodies which both have veto rights for example bicameral systems this thesis is supported by empirical evidence the legal independence of central banks is significantly higher in those oecd countries whose legislative processes are characterized by extensive checks and balances furthermore the negative relation between legal independence and inflation is larger in countries with checks and balances than in countries without checks and balances

elasticities in aids models in the literature a variety of approaches have been used to calculate demand elasticities in almost ideal demand system aids models of demand it is common to estimate the linear approximate almost ideal demand system la aids instead of the aids when the la aids is estimated all of the previously reported approaches to compute elasticities are theoretically incorrect this paper presents correct formulas for la aids elasticities and illustrates the potential errors from using incorrect computing the almost ideal demand system aids of deaton and muellbauer 1980a b has become popular in recent years anderson and blundell blanciforti and green 1983a b blanciforti green and king chalfant eales and unnevehr fujii khaled and mak fulponi heien and willett murray parsons ray a variety of approaches to computing elasticities has been used and some of the approaches may lead to significant errors this paper clarifies the differences between alternative approaches to estimating demand elasticities in aids models

the symmetric problem in the linear almost ideal demand system abstract this paper derives a set of linear and nonlinear restrictions to make a n goods linear almost ideal demand system symmetric when all prices are allowed to vary the consequences of imposing such restrictions on the demand elasticities are illustrated using the united states meat consumption data

accounting for changes in tastes health concerns are thought by many to have shifted consumption away from red meats though econometric evidence is mixed testing for structural change is difficult especially when one time series is used for both estimating demand equations and testing their stability specification errors may suggest a shift where none has occurred using nonparametric demand analysis we find that meat consumption patterns in the united states and australia can be explained using only relative prices and expenditures only imposing particular functional forms can reverse the conclusion suggesting that specification errors in econometric demand studies can account for findings of taste changes

mobile capital domestic institutions and electorally induced monetary and fiscal policy the literature on global integration and national policy autonomy often ignores a central result from open economy macroeconomics capital mobility constrains monetary policy when the exchange rate is fixed and fiscal policy when the exchange rate is flexible similarly examinations of the electoral determinants of monetary and fiscal policy typically ignore international pressures altogether we develop a formal model to analyze the interaction between fiscal and monetary policymakers under various exchange rate regimes and the degrees of central bank independence we test the model using data from oecd countries we find evidence that preelectoral monetary expansions occur only when the exchange rate is flexible and central bank independence is low preelectoral fiscal expansions occur when the exchange rate is fixed we then explore the implications of our model for arguments that emphasize the partisan sources of macroeconomic policy and for the conduct of fiscal policy after economic and monetary union in europe

correcting for measurement error in food demand estimation use of disappearance data as proxies for actual consumption causes inconsistent estimates of own price retail demand elasticities a system of equations describing consumer processor and producer behavior is used to consistently estimate the retail demand elasticity for beef using available data while avoiding the restrictive assumption of fixed input proportions implicit in disappearance data this approach yields an estimate of the own price retail demand elasticity for beef of 0 45 which is more inelastic than the estimate 0 66 obtained using a traditional approach the methodology is applicable to other food commodities for which disappearance data serve as proxies for actual consumption copyright 1993 by mit press

political and monetary institutions and public financial policies in the industrial countries institutions and policies vittorio grilli donato masciandaro and guido tabellini why do countries as similar as the industrialized oecd countries go through such different experience in terms of public deficits and debts or in terms of inflation the answer cannot come from macroeconomic policy responses to different disturbances nor from the principles of optimal taxation but rather from politics this article focuses on the role that particular institutions exert in providing constraints and incentives which shape the actions of policymakers the electoral process and political traditions affect the ability of governments to deal with deficits and mounting debts what seems to matter most it is found is the effect of the durability of governments governments with short horizons act myopically and never quite tackle the hard choices such governments typically exist in countries with an electoral system favouring many small political parties central bank independence promotes low inflation with no apparent costs in terms of real economic performance irrespective of the political institutions in fact there is no link between monetary and fiscal discipline these findings carry powerful implications for countries facing high indebtedness or stubborn inflation but also for the construction of the european economic and monetary union

correlation analysis of co 2 emissions material stocks and economic growth nexus evidence from chinese provinces abstract a better understanding of the economy material emissions nexus is fundamental in order to reveal the interactions between human development and the natural environment and more importantly to design integrated de carbonization and de materialization policies in this paper we conducted a decoupling analysis of fossil fuel induced co2 emissions and in use material stocks in infrastructure to economic growth at the provincial level in china and investigated the trilateral causal relationships among the three indicators the results show that the average elasticity of co2 emissions and material stocks to economic growth was smaller than 1 representing a status of relative decoupling however in many less developed provinces in central and western china we observed increasing trends of elasticity in the past three decades which suggest their economic growth became more tightly linked to co2 emissions and the accumulation of material stocks granger tests suggest that in the long run there existed a unidirectional causality running from co2 emissions economic growth and urbanization to material stocks in the short run a bi directional causality between co2 emissions and economic growth and a unidirectional causality from material stocks to co2 emissions were detected policy implications for the de carbonization and de materialization transition include enhancing renewable energy utilization upgrading industries to less carbon intensive ones developing compact cities prolonging the lifespan of infrastructure and strengthening the life cycle carbon management of infrastructure

the implications of institutional design for macroeconomic performance reassessing the claims of consensus democracy the choice between a proportional representation pr or plurality based electoral system is commonly assumed to involve a trade off the former is assumed to provide fairer representation but at a

structural change in the demand for meat economists have long thought that shocks in the economy sometimes lead to permanent changes in behavioral relationships hence supply or demand elasticities estimated from econometric models may change over time the source of such structural change may be technological adoption a shift in consumer preferences or an institutional change one way to handle this problem in linear models is to allow the parameters to change as the situation changes so that the model provides a local approximation of the behavioral relationship this approach is an attractive way to deal with structural change problems econometricians have extended the classical

central bank independence and inflation corporatism partisanship and alternative indices of central bank independence a well developed theoretical literature suggests that central bank independence causes low inflation empirical work supporting this hypothesis is unsatisfactory however for two reasons statistical analysis has only recently begun to include control variables and important political variables that are related to inflation have not yet been included analysis has not yet undertaken a systematic comparison of alternative indices of central bank independence this paper addresses both weaknesses by testing the explanatory power of eight indices of central bank independence in a political economic model of inflation the results suggest that while support for the central bank independence hypothesis survives a relatively inclusive set of control variables support for the hypothesis is not independent of the particular index upon which analysis relies