the role of permanent income and demographics in black white differences in wealth we explore the extent to which the large race gap in wealth can be explained with properly constructed income and demographic variables in some instances we explain the entire wealth gap with income and demographics provided that we estimate the wealth model on a sample of whites however we typically explain a much smaller fraction when we estimate the wealth model on a black sample using sibling fixed effects models to control for intergenerational transfers and the effects of adverse history we find that these factors are not likely to account for the lower explanatory power of the black wealth models our analysis of growth models of wealth suggests that differences in savings behavior and or rates of return play an important role

demand for rural tourism the effects of quality and information the development of rural tourism is regarded as a promising diversification strategy especially for lagging and mountainous areas of the european union research concerning the demand and or supply of rural tourism services has been limited within the agricultural economics domain despite the significance attached to rural tourism by various rural development policy measures and initiatives the article examines the expenditure behavior of rural tourists within a framework of demand for composite heterogeneous goods the proposed framework captures the quality of the tourism experience as the commodity s unit value a quantifiable economic variable examines its effects on expenditures and allows for the estimation of elasticity in prices regarding expenditure and quantity empirical analysis is facilitated by a survey recording the expenditure behavior of 465 tourists in two rural and lagging areas of greece the quality of the tourism experience is significantly and positively affected by the income the source from which information about the trip is retrieved internet newspapers as well as general press and special travel press and by the amount of information sought by the consumer prior to the trip in turn the quality of the tourism experience is the major endogenous factor that positively influences expenditures for rural tourism further research is needed before evidence provided in this work can be used to draw policy conclusions and recommendations

portfolio choices of parents and their children as young adults asset accumulation by african american families the portfolio composition decision often is stylized as either a life cycle choice to allocate income to consumption or as a choice along a risk return locus with the locus derived from the underlying market equilibrium of asset returns and prices empirical work on household financial behavior has identified large differences in wealth levels and in portfoliocomposition choices of different demographic groups well beyond income and risk tolerance by far the most striking difference in this literature emerges when the population is subdivided by race for example given the strong performance of the u s equity market in the past decade portfolio choices of stocks have been key to wealth building yet africanamerican families have been less likely to have held stocks as of the mid 1980 s and less likely to have become shareholders over the period 1989 1994 erik hurst et al 1998 this paper attempts to resolve this puzzle by examining cross generational influences on current portfolio composition decisions

engel s law diet diversity and the quality of food consumption increasing income brings about a decline in the relative importance of food consumption a wider spread of spending patterns and a demand for higher quality goods using an index number approach this article analyzes these three closely related tendencies stripping out the impact of prices from the dispersion of food expenditures gives a volume based measure of diet diversity that is relevant for nutrition using unpublished data from the world bank s international comparison program for 31 items of food in more than 150 countries we find that diets of rich countries are substantially more diverse than those of the poor and that volumes are the more appropriate way to measure the inequality of diversity the quality of the food basket based on the luxury necessity distinction of consumption increases with income but the elasticity is small there is a modest tendency for the structure of prices to be regressive since prices of luxuries relative to necessities are lower in richer countries additionally our diversity and quality measures are shown to have implications for demand analysis and well being

organic labelling private label and u s household demand for fluid milk abstractthe u s fluid milk market has been experiencing two trends in the recent decade the fast growth of private label milk and organic milk using the data from nielsen homescan panel we estimate a censored demand system to study the demand relations among types of milk differentiated by brand types and organic status we find that sociodemographic factors still play important roles in household choice of milk types and fluid milk as a whole is an inferior good moreover as income increases households are more likely to shift from buying conventional milk to organic milk and from private label conventional milk to branded conventional milk as indicated by the asymmetric cross price elasticities corresponding implications for milk producers and marketers are discussed

understanding new zealand s changing income distribution 1983 1998 a semi parametric analysis this paper analyses income distribution changes in new zealand between 1983 and 1998 we use a semi parametric kernel density approach and a range of inequality summary measures to assess the distributional effects of changes in five sets of factors household structure national superannuation old age pension socio demographic attributes employment outcomes and economic returns to such attributes and employment outcomes changes in household structure and attributes are the main factors contributing to the rise in inequality employment changes and changing returns had a more modest impact the results are qualitatively robust to a variety of equivalization income and weighting measures

a structural investigation of biotechnological impacts on cotton quality and returns a structural quality quantity choice model is developed to evaluate the impact of improved fiber quality and the resulting economic surplus under biotechnological scenarios two major biotechnology scenarios are considered for a comparative analysis of fiber quality improvement results show impacts on fiber quality improvement and economic returns

food scandals media attention and habit persistence among desensitised meat consumers abstract consumer reactions to food scandals and their resulting economic implication are well documented however studies have typically neglected the roles that consumption habits and media usage behaviours may play in explaining household s response to food safety incidences in this study we develop a model of heterogeneous media usage intensity information impacts and decay over time to estimate household s behavioural responses to the 2011 german dioxin scandal we are specifically interested in determining the degree of heterogeneity in household s short term adjustments demand patterns versus persisting long term consumption habits of meat products chicken and pork directly affected by the incident the empirical analysis employs detailed household level retail scanner and media usage data collected by the gfk consumer scan panel for a total of 16 023 households over a period of 104 calendar weeks results of dynamic correlated random effect tobit models indicate an important role of unobserved heterogeneity in explaining household responses during the food scandal we find strong empirical evidence supporting our hypothesis that short term marginal adjustments in demand and propensity to buy affected products triggered by the negative impact of household media exposure were over compensated by habit persistence the question of how consumption patterns evolve over time in the presence of food scandals is expected to be of interest for both policy makers and the food industry the potential biases in the projection of economic impacts resulting from simplifying assumptions of household s response patterns to a proliferating numbers of food safety incidences has implications for risk management and public policy

prices and quality effects in cross sectional demand analysis a conceptual clarification of the sources and meaning of cross sectional price variability is used to motivate a theoretical and econometric framework for the estimation of cross sectional demand functions quality effects are distinguished from supply related price variability to identify cross sectional demand for disaggregated food commodities an empirical application using data from the 1977 78 nationwide food consumption survey indicates that parameter differences resulting from a failure to adjust cross sectional prices for quality effects are likely to be small for relatively homogenous disaggregated food commodities in demand analysis with cross sectional household budget data it is usually assumed that prices are constant allen and bowley prais and houthakker george and king given this assumption engel functions are estimated where expenditure or quantity is regressed on income or total expenditures family size and other demographic characteristics the assumption that cross sectional price effects are absent or are captured adequately by spatial and temporal dummy variables has not been evaluated empirically whether cross sectional price effects can be treated in this manner has implications for the specification of cross sectional demand functions as well as the estimation of engel functions there is a considerable literature on estimating price elasticities with cross sectional data most of the applications utilize timeseries cross sectional data annual or quarterly household consumption surveys and

a comparative analysis of the nativity wealth gap this paper investigates the source of the gap in the relative wealth posi tion of immigrant households residing in australia germany and the united states our results indicate that in germany and the united states wealth difierentials are largely the result of disparity in the educational attainment and demographic composition of the native and immigrant populations while income difierentials are relatively unimportant in understanding the nativity wealth gap in contrast the relatively small wealth gap between australian and foreign born households exists because immigrants to australia do not translate their relative educational and demographic advantage into a wealth advantage on balance our results point to substantial cross national disparity in the economic well being of immigrant and native families which is largely consistent with domestic labor markets and the selection policies used to shape the nature of the immigration ow

a latent variable model of consumer taste determination and taste change for complex carbohydrates despite evidence that aggregate consumption of complex carbohydrates has risen over the last decade food consumption surveys suggest that fewer households are consuming less bread pasta rice potatoes and corn this paper estimates systems of complex carbohydrae demand using cross sectional data from 1977 78 and 1987 88 in order to explain this paradox changes in demand that are not explained by changes in prices or income are explained by variations in taste because tastes cannot be directly observed the paper uses a multiple indicator and multiple cause mimic model to construct a suitable proxy variable in the mimic approach the indicators are residuals from a household demand function that includes prices and incomes as explanatory variables while household and demograhic proxies are cause variables the objectives in applying the mimic model are to determine the effect of consumer tastes on complex carbohydrate demand and comparing cross sectional survey data from two different periods

the testing and estimation of complete demand systems on household budget surveys a recent demand system aids is extended to include family size explicitly and then estimated on indian budget data the estimation using non linear fiml is performed first on pure time series and then on pooled cross section data within and across equation restrictions are imposed and tested the principal results include u a significant price and family size effects on the budget share of an item b sensitivity of test results on homogeneity and symmetry to i rural urban data ii time series cross section and iii inclusion omission of family size c considerable difference between pure time series and pooled cross section estimates and d difference between the expenditure responses of the rural and urban consumer

town size and the consumer behaviour of spanish households a panel data approach the aim of this paper is to analyse the effect of town size on the spanish demand for food the methodological approach followed in the study is to use panel data built from the spanish quarterly national expenditure survey to estimate a demand system the use of this type of data allows control for unobserved time invariant heterogeneity as well as to take into account the time and the cross section dimension of data four locations are distinguished 1 less than 10000 inhabitants 2 between 10000 and 100000 inhabitants 3 between 100000 and 500000 inhabitants and 4 more than 500000 inhabitants eight broad food categories are considered 1 cereals and potatoes 2 meat 3 fish 4 dairy products 5 fats and oils 6 fruits 7 vegetables and 8 other food income and price elasticities are calculated for each location in general terms two general conclusions can be drawn first results indicate that only slight changes in tastes have taken place during the analysed period second

initial conditions at emancipation the long run effect on black white wealth and earnings inequality abstract black white wealth inequality is much greater than black white earnings inequality in the united states the existing empirical literature has not been able to fully explain the wealth gap this paper investigates how much of current black white income and wealth inequality can be explained by initial conditions at emancipation and nearly 100 years of segregated schools a two sector model with group specific human capital accumulation and school expenditure differences can explain the path of black white convergence in earnings over the past 130 years the model also reproduces the fact that black white wealth ratios remain much lower than black white earnings ratios

demand elasticities from a discrete choice model the natural christmas tree market a procedure is demonstrated for estimating market level demand elasticities from household data suffering from sample selectivity problems the procedure uses mcfadden s nested multinomial logit model and is applied to the natural christmas tree market results indicate that the own price elasticity of natural christmas trees is 0 674 and the cross price elasticity of natural christmas trees with respect to artificial christmas trees is 0 188 these are the first known demand elasticity estimates for the natural christmas tree market

on bias correction in the multivariate sample selection model heien and wessells two step estimator for the multivariate sample selection model has been used extensively during the past 15 years a modified version of it with slightly different selectivity regressors has also appeared in the empirical literature both estimators are unfounded and generally do not correct for the sample selectivity bias as intended but have continued to gain popularity in empirical applications the properties of the modified heien wessells procedure are investigated in both the bivariate and multivariate contexts and the conditions under which this estimator fails to correct for sample selectivity are examined the theoretical properties are demonstrated with a simulated random sample

co2 and energy efficiency of different heating technologies in the dutch glasshouse industry this paper uses data envelopment analysis tocompute input based technical efficiencymeasures and co2 and energy technicalefficiency of specialised vegetable firms inthe netherlands over the period 1991 1995 input based scale efficiency is also calculatedfor each firm these efficiency measures aregenerated for firms with different heatingtechnologies the empirical results indicatethat firms use energy quite efficiently and areless efficient in terms of co2 emissions differences in co2 energy efficiencyacross different technologies are not statistically significant in particular firms using traditional heating technologiesare less efficient in terms of co2 scaleadjustments can provide an importantcontribution to further efficiencyimprovements

variation in retail costs for fresh vegetables and salty snacks across communities in the united states abstract households living in different communities pay different amounts of money for food food costs depend on whether a household lives in an urban community or in a locality with a high incidence of poverty among other factors this study focuses on spatial variation across the united states in the retail costs for fresh vegetables and salty snacks findings reveal that the major economic and demographic characteristics of a household s community affect its costs for these two types of foods differently however households are likely to pay more money for salty snacks in communities where fresh vegetables also cost more

five a day a price to pay an evaluation of the uk program impact accounting for market forces we provide an ex post assessment of the uk 5 a day information campaign where the positive effects of information are disentangled from potentially conflicting price dynamics using 4 years of data from the expenditure and food survey between 2002 and 2006 we estimate that the 5 a day program has lifted fruit and vegetable consumption by 0 3 portions on average we also provide quantitative evidence of a differentiated impact by income group ranging from 0 2 to 0 7 portions all impacts are larger than those observed by simply comparing pre policy and post policy intakes

disaggregated household meat demand with censored data previous research on meat demand has generally used highly aggregated data across time products and consumers however meat products across species are likely stronger substitutes than some products from the same species further demand for specific meat products would be expected to respond differently to market information about food safety or other events this study uses monthly consumer panel data collected between 1992 and 2000 to estimate a disaggregated meat product demand system the use of the expectations maximization algorithm is introduced to estimate a demand system that adjusts for the econometric problem of censored data resulting from purchased shares of some products by individuals often being equal to zero results indicate that certain individual meat products have noticeably different own price elasticities than existing aggregate meat product estimates of their respective species some individual meat products have stronger substitutes across species than within species e g be

variety prices and food status in low income households the basic premise of this paper is that a household receives utility directly from the status of a food composite good which is created by combining a household s skill and creativity in preparing foods other inputs and the kinds and amounts of foods available we proceed to investigate the factors influencing the demand for and prodcution of this composite good the demand for food status in influenced most by the following characteristics race education houshold size homeownership region of household residence and income direct price effects were minor estimates of a food status production function imply that the production of food status is not much a matter of the quantities of foods consumed but rather the types of food purchased variety and the creativity of the homemaker

estimation of demand functions using cross sectional household data the problem revisited a procedure that corrects for selectivity bias is proposed to estimate demand functions using cross sectional data under the assumption that prices vary across households this procedure which extends the work by cox and wohlgenant includes a two equation system of expenditure and unit value functions this model is applied to household expenditures for beef steaks and roasts

quality variation and quantity aggregation in consumer demand for food viewing the problem of quality variation in consumer demand for food as a problem of valid aggregation over goods leads to new insights the simple sum of physical quantities used as the measure of demand in the quality literature is found to be a theoretically arbitrary and potentially misleading measure of demand when goods are heterogenous alternative measures of demand derived from restrictions on quality variation consumer preferences or relative prices are investigated a hypothetical example illustrates the use of a hicksian composite commodity assumption the empirical as well as conceptual merits of the various measures are discussed the usual assumption made about prices in a cross section analysis of household food expenditures is that all households are facing the same prices estimation of price elasticities of demand is commonly left to time series researchers who get price information from intertemporal indices recently however there has been renewed interest in the otential of cross section analysis for estimation of price elasticities of demand for food especially when surveys collect data on both household expenditures for food items and on the physical quantities purchased

distributional changes in the gender wage gap using panel study of income dynamics psid data the authors analyze changes in wage differentials between white men and women over time and across the entire wage distribution the authors decompose distributional changes in the gender wage gap to assess the contribution of observed characteristics measuring individual productivity they find that the gender wage gap narrowed by 16 at the lowest decile and by less than 5 at the highest decile the decomposition results indicate that changes in the gender wage gap are mainly attributable to changes in educational attainment at the top of the wage distribution with a sizable part due to work history changes at the bottom the findings further reveal that the accuracy of the results depends on the direction in which the decompositions are performed

a demand systems analysis of food commodities by u s households segmented by income using the 1987 88 nationwide food consumption survey twelve food commodity groups were analyzed according to household poverty status parameter estimates were used to obtain subsistence expenditures own price elasticities expenditure elasticities and income elasticities own price elasticities were similar between the income groups for most commodities however income elasticities were consistently higher for the lower income group the use of average estimates of price and income elasticities for the population as a whole for the projection of individual commodity demands is not likely to be successful if notable changes are evident in income distribution

demand system estimation in the absence of price data an application of stone lewbel price indices this article evaluates the feasibility of estimating a system of demand equations in the absence of price information using the approach developed by lewbel 1989 stone lewbel sl price indices for commodity groups are constructed using information on the budget shares and the consumer price indices cpis of the goods comprising the commodity groups which allows for household level prices to be recovered this study evaluates how susceptible are elasticities and marginal effects estimates from traditional parametric demand systems to the cpi used in the construction of the sl prices to do this three alternative regional cpis are considered for the construction of the sl prices monthly quarterly and a constant unity price index elasticities and marginal effect estimates are computed for eight food commodity groups using the exact affine stone index easi model as the parametric demand system and data from the united states consumer expenditure survey the estimates proved to be robust to the a

habit formation and demand for sugar sweetened beverages using scanner data we estimated demand for nine nonalcoholic beverages under habit formation we found strong evidence for habit formation although demand for sugar sweetened beverages by low income households is less elastic to own price changes compared with high income households there is evidence that high income households consider beverages to be more substitutable than low income households do a half cent per ounce tax on store purchased sugar sweetened beverages will result in a moderate reduction in consumption of sugar sweetened beverages for both income strata because of habit formation long run national tax revenue from a sugar sweetened beverage tax is about 15 to 20 lower than short run revenue

stated and revealed preferences for organic and cloned milk combining choice experiment and scanner data the u s food and drug administration s recent announcement that milk from cloned cows is as safe to drink as that from conventionally bred cows prompted interest among farmers food retailers and regulators in the market impacts of the introduction of milk from clones because milk from cloned animals is not currently labeled in the market we utilized a stated preference experiment to determine consumer preferences for the attribute but also sought to determine whether the survey based choices were consistent with people s revealed preferences given by scanner data our analysis indicates that a pooled model combining stated and revealed preference data exhibits overall better out of sample prediction performance than either data set used alone results from the pooled model indicate that consumers are willing to pay large premiums to avoid milk from cloned cows an amount that is over three times that for organic or rbst free milk the results are used to calculate the value of a mandatory labeling program

recent trends in the size distribution of household wealth based on the survey of consumer finances the distribution of wealth in the united states became much more unequal in the 1980s and that trend continued albeit at a slower pace in the 1990s the only households that saw their mean net worth rise in absolute terms between 1983 and 1995 were those in the top 20 percent and the gains were particularly strong for the top one percent all other groups were particularly strong for the top one percent all other groups suffered real wealth losses including the median household and declines were particularly precipitous at the bottom racial disparities widened and young households also lost out over this period

prospects for the eurozone for wim duisenberg the euro s perceived independence from the nation state was a path breaking achievement to be proud of and to cherish little more than a decade later and three years into the deepest economic crisis europe has known since the great depression duisenberg s elation rings strangely anachronistic since what the nationless euro seems to have achieved above all is to undermine whatever mutual confidence at the heart of our community there may have been at the start this special issue takes stock of the euro crisis so far it is concerned with the in depth analysis of its main causes policy proposals for a recovery from the crisis and reform strategies for the reconstruction of a more viable and egalitarian eurozone in the future this introduction provides an overview of both core features of the euro crisis and related debates as well as individual contributions to this special issue section 1 examines the origins of the euro crisis section 2 reviews key policy developments in the evolution of the crisis from its onset in may 2010 to the adoption of outright monetary transactions omts by the european central bank ecb in september 2012 and section 3 provides an overview of the contributions to the special issue

the demand for food quality in rural china many studies of food demand do not use actual prices but unit values obtained by dividing expenditures by the quantity consumed this can bias empirical analyses because unit values are not exogenous market prices they reflect household food quality choices within each food category this article develops a framework for assessing the resulting bias in income and price elasticities of demand and applies the framework to data for rural china empirical results indicate that households in rural china tend to consume higher quality food as income increases with a greater sensitivity to income for basic foods than for luxury foods copyright 2009 oxford university press

an inverse demand analysis with introduction of quality effects an application to spanish consumption of fruit and vegetables this article analyzes consumer preference for fruit and vegetables when by using time series with socioeconomic characteristics of households there can be seemingly unobserved quality effects which are increased by aggregation the changes in spanish demand for fresh and processed fruit and vegetables over the period 1987 2000 are discussed following previous tests and analyses quantities are taken as predetermined and prices as matching the offer conditions thus quality effects based on the nutritional and or health value of the product are estimated from the error terms associated with the functions of the unit values quality variables are introduced as taste shifters in the inverse demand system laitinen theil model the results show the positive effects of quality differences on the normalized price for the group of products through own quality flexibilities and the negative effects between fresh and processed products through cross quality flexibilities

black white wealth inequality is inheritance the reason i introduction on average black americans have less wealth than white americans previous studies of wealth reveal that blacks hold on average between 10 and 25 of the wealth held by whites as reported in terrell 1971 smith 1975 sobol 1979 blau and graham 1990 and wolff 1992 a number of possible explanations for this gap have been suggested particularly differences in income and various socio economic characteristics between black and white households however the average difference in black white household income is much less than the difference in black white household wealth wolff 1992 reports that black household income averaged 63 of white household income in 1989 a ratio which had persisted over the previous twenty years consequently there must be additional factors which explain the greater racial wealth differential recently economists such as blau and graham 1990 and wolff 1992 have surmised that differences in intergenerational transfers might account for much of the unexplained racial difference in wealth we document the large difference in wealth between blacks and whites and then attempt to account for this difference paying particular attention to the effect of inherited wealth a number of investigators have speculated on the possible importance of inheritances in explaining racial differences in wealth in a comment on smith s 1975 analysis of black white wealth differentials vito natrella 1975 noted that smith only explained 25 of the wealth differential through differences in economic variables natrella conjectured that the really significant determinants not included in smith s analysis were prior income inherited wealth and the propensity to save p 370 wolff 1992 suggested that differences in intergenerational transfers provide a plausible explanation of the black white wealth gap but provided no supporting evidence in a recent article blau and graham 1990 attempted to explain racial differences in wealth at the household level as a result of differences in household income location and demographic factors however they found that three quarters of the racial difference in wealth remained unexplained they speculated that racial differences in inheritance and other intergenerational transfers most likely play an important part p 338 in explaining the remaining black white differences in wealth if true this explanation would have important policy implications e g higher rates of inheritance taxation could reduce wealth differences between races ii data in this paper we attempt to empirically verify the hypothesized importance of inheritances in explaining the differences in black and white household wealth our empirical analysis makes use of two data sets which report both household wealth and household inheritances the 1976 national longitudinal surveys of mature men nls76 and the 1989 survey of consumer finances scf89 the nls76 sample was chosen to be representative of the u s male population aged 45 to 59 years old in 1966 with an oversampling of black households our analysis focuses on the sample of 2 019 respondents who survived through 1976 and reported all variables required for our analysis 1 more information about the nls76 can be obtained from the center for human resource research 1992 the scf89 sample was chosen to provide a comprehensive picture of the financial situation of all u s households in 1989 the scf89 oversampled high income households we make use of the complete sample encompassing the multiple imputation procedure employed by researchers at the board of governors of the federal reserve system more information about these data can be obtained in kennickell and shack marquez 1992 since both data sets employ oversampling of particular population segments all sample statistics reported in this paper are sample weighted in the nls76 respondents were asked to report whether they or their spouse had received any girl inheritance or prize such as a lottery or award greater than 1 000

measuring the welfare effects of reducing a subsidy on a commodity using micro models an application to kuwait s residential demand for electricity abstract this paper provides a conceptual and empirical approach for evaluating the direct benefits and costs that are associated with reforming the price of a subsidized commodity using a micro model the welfare analysis is based on two alternative scenarios a hypothetical percentage increase in the price of the commodity and a hypothetical percentage decrease in the amount of subsidy the latter is considered to be a simultaneous problem in which the exact price of the commodity that reduces consumption and subsequently the subsidy to the specific target level needs to be determined first as a case study the paper utilizes the most recent household expenditure survey in the state of kuwait to estimate residential electricity demand for different household groups i e low middle and high income and employs a partial equilibrium model to measure the welfare implications that may result from a reduction in the electricity subsidy rates the empirical findings show that a small increase in the price of electricity would reduce annual consumption by 4741 million kwh and annual subsidy by us 734 million the results also show that the loss in consumers welfare is approximately us 145 million while the financial and environmental benefits to the society ranges between us 658 million and us 889 million the magnitude of these welfare gains suggests that electricity price reforms combined with a rebate scheme to compensate households for their welfare loss offsetting any political resistance to reform is a win win situation

quantifying the structure of food demand in china an econometric approach this article examines food demand structure and its dynamics for 11 commodities in urban china the analysis is based on household level expenditure survey data for two cross sectional surveys of chinese households pertaining to food expenditure patterns during 1995 and 2003 pre committed components of commodity demands that are insensitive to economic variables are explored we use the generalized quadratic almost ideal demand system gqaids for its empirical superiority to the generalized almost ideal demand system gaids and estimate the associated parameters via full information maximum likelihood procedure fiml accounting for endogeneity of total expenditures on food for home consumption fah we also use quality adjusted commodity unit values to control for quality differences resulting from commodity aggregation and food choice furthermore we derive gqaids elasticity formulas and estimate income elasticities without restrictions the results partially support the hypothesis that an average chinese household has incorporated elements of western diet fine grains into traditional chinese food diet over time moreover the outcome of a simple test developed here points to possible preference changes for a majority of food staples under study

at the crossroads the euro and its central bank guardian and saviour this paper investigates the role of the european central bank ecb in the mal functioning of europe s economic and monetary union emu focusing on the german intellectual and historical traditions behind the euro policy regime and its central bank guardian the analysis contrasts keynes s chartalist conception of money and central banking with the peculiar post world war ii german traditions nourished by the bundesbank and based on a fear of fiscal dominance keynes viewed the central bank as an instrument of the state controlling the financial system and wider economy but ultimately an integral part of and controlled by the state in contrast the maastricht emu regime of german design positions the central bank as controlling the state essentially the national success of the bundesbank model in pre emu times has left europe stuck with a policy regime that is wholly unsuitable for the area as a whole but regime reform is complicated by severely unbalanced competitiveness positions and debt overhang legacies refocusing the ecb on growth and price stability would have to be a part of any solution as would refocusing area wide fiscal policy on growth and investment copyright oxford university press

gender differences in wealth at retirement recent economic trends like the growing prevalence of defined contribution retirement plans have made individuals increasingly responsible for their own financial security financial security greatly depends on the ability to accumulate adequate wealth edward wolff 1998 wealth can be a significant source of retirement income for individuals less and less able to rely on social security and employerprovided defined benefit pension plans one concern in the current economic climate is the persistent gap in wealth between men and women several papers for example lucie schmidt and purvi sevak 2006 have found that the gap is significant even after controlling for individual characteristics this paper contributes to the literature by studying the role of risk preferences in addition to other characteristics specifically it addresses the following research question controlling for other factors do gender differences in risk preferences contribute to the gender wealth gap at retirement the underlying premise is that women are more risk averse than men which is supported by previous research for example robert b barsky et al 1997 a simple theoretical model of household decision making illustrates that retirement wealth is a function of income earned over the lifetime and risk aversion the model is empirically tested using data from the health and retirement study hrs 1 results show that the gender gap in wealth persists even when risk preferences are added to the set of controls thus the unexplained gap remains a cause for concern

econometric estimation of technical and environmental efficiency an application to dutch dairy farms in this article we estimate the technical and environmental efficiency of a panel of dutch dairy farms nitrogen surplus arising from the application of excessive amounts of manure and chemical fertilizer is treated as an environmentally detrimental input a stochastic translog production frontier is specified to estimate the output oriented technical efficiency environmental efficiency is estimated as the input oriented technical efficiency of a single input the nitrogen surplus of each farm the mean output oriented technical efficiency is rather high 0 894 but the mean input oriented environmental efficiency is only 0 441 intensive dairy farms are both technically and environmentally more efficient than extensive farms

demand for meat and dairy products by turkish households a bayesian censored system approach we extend the tobit censored linear equation system procedure to utility theoretic demand functions along with a mapping mechanism to impose the adding up restriction implied by consumer utility maximization theory a theoretical restriction very often ignored in previous empirical studies with censored demand systems in this context the bayesian markov chain monte carlo mcmc procedure is applied to the censored linear approximate almost ideal demand system laids for 12 food products using data from the turkish household expenditure survey all own price elasticities are negative and expenditure elasticities positive uncompensated own price elasticities for rural households are generally much higher than those for their urban peers though demand for most food products are own price elastic for both types of households the differential patterns in demand elasticities between urban and rural households become even more evident almost twice as relatively more expensive foodstuffs are consumed showing that accessibilities to alternative products have made rural turkish households more cognizant toward price changes in foods household characteristics play a key role in food expenditures notably so in urban areas and regional and seasonal differences are also present

productivity growth and inter sector spill over in dutch horticulture 1976 1995 this article calculates nonparametric measures of total factor productivity growth on dutch horticultural firms in the period 1976 1995 individual components of total factor productivity growth i e efficiency change and technical change are regressed on socioeconomic factors reflecting the effects of the world oil crises household and demographic characteristics location and investment in physical capital also the article investigates the presence of inter sector spill overs between groups of firms with different specializations in dutch horticulture

coupon redemption and its effect on household cheese purchases by endogenizing unit value and coupon redemption we estimate u s household cheese purchase quality choice and coupon redemption equations simultaneously zero purchases and missing values on coupons and unit values are taken into account in the model to correct for selectivity bias correlations among the three equations are found to be significant empirical findings show that high quality choice significantly decreases cheese purchases while cheese coupon usage significantly increases purchases we find that higher income households select higher quality cheese while larger households choose lower quality cheese for coupon redemption we find that african american and hispanic households redeem less while asian households have no significant difference compared to caucasian households

the demand for dairy products structure prediction and decomposition this article presents an analysis of the demand for dairy products first the structure of dairy product demand is estimated using the household food consumption survey data under the assumption of a two stage budgeting procedure a complete demand system for food incorporating demographic effects is estimated next using the demand relations estimated from cross section data prediction interval tests utilizing time series data are performed for milk and butter last factors affecting consumption are classified into economic and demographic effects and a decomposition of the causes of changes in demand over time is performed

the immigrant and native born wage distributions evidence from united states censuses recent studies document a large widening of the immigrant native born mean wage gap since about 1970 a trend that some observers ascribe to post 1965 changes in u s immigration policy these studies are limited however by their exclusive focus on men which ignores important gender differences in the wage gap and by the inadequacy of the mean wage for characterizing the gap when as in recent decades the wage distribution dramatically changes this study of recent immigrants examines changes across the entire wage distribution for both genders the authors find evidence based partly on gender differences that minimum wages strongly influenced the gap a counterfactual analysis also indicates that if recent immigrants in 1970 had faced the 1990 wage structure their wage distribution would have closely resembled that of recent immigrants in 1990 these and other results suggest that the increasing wage gap is linked to changes in the wage structure

food consumption changes of adult women between 1977 and 1985 nationally representative samples of u s women aged nineteen to fifty are used to examine comparable food group consumption data collected in 1977 and 1985 changes in the proportion of women consuming each food group quantities consumed by users and the determinants of consumption changes over time are identified significant shifts in consumption of food groups defined by fat and dietary fiber criteria are measured in this research while standard demographic and socioeconomic factors explain significant amounts of cross section food group consumption variation the effects of these factors vary considerably between 1977 and 1985 and explain most of the food group consumption trends

quality quantity and spatial variation of price back to the bog abstract estimating potential effects of price reforms is a key issue for many developing countries demand studies increasingly use household survey data on budget shares which vary with quantity price and quality if quality response to price is ignored estimated price elasticities of quantity demand conflate responses on quantity and quality margins our review finds over 80 of published studies using budget shares from household survey data have this error we use survey data from vietnam with prices and qualities observed over space to directly estimate the price elasticity of quality this is much larger than what is derived from the income elasticity of quality based on the deaton 1988 separability restrictions across the 45 items we study the own price elasticity of quantity demand is overstated by a factor of four on average if the response of quality to price is ignored

calculating rural urban food price differentials from unit values in household expenditure surveys a comparison with existing methods and a new procedure while purchasing power parity ppp between countries has received a great deal of attention ppp calculations within countries have received less attention the idea that one unit of currency has the same purchasing power in all regions in large countries is false this paper addresses this limitation by proposing a methodology for calculating rural urban ppp in india the paper introduces a concept of item specific ppp that exploits the analogy with an item specific equivalence scale the methodology relies on demographically varying preferences to estimate ppp the results underline the need to incorporate spatial differences in ppp calculations in countries with heterogeneous preferences copyright 2012 oxford university press

analysis of food demand in vietnam and short term impacts of market shocks on quantity and calorie consumption a complete demand system for vietnam was estimated using household survey data results showed that demand for rice with respect to prices and expenditure is relatively inelastic compared to other foods demand for food in general tends to be less elastic at higher levels of income and for urban households in the short term a market shock such as a 10 decrease in income or a 30 increase in rice prices forces households to spend a larger portion of their expenditure on rice at the expense of other foods low income households face a higher risk of undernourishment as their daily calorie intake is more negatively affected by the shocks than high income households the results suggest the importance of policies that provide necessary safety net programs for the poor

quantity and quality effects of advertising a demand system approach quantity and quality effects of advertising are investigated in this article a censored demand system is estimated for fish beef pork and other meats using norwegian household data in the demand model generic fish advertising and meat advertising is introduced as demand shifters and at the same time unit values are treated as endogenous the unit values capture the quality of the commodities empirical findings show that advertising can have both quantity and quality effects on household demand

asymmetric adjustment of dynamic factors at the firm level presents a study which addressed the deficiencies of previous studies the specification and estimation in the modeling of asymmetry and zero gross investment in the agricultural industry reference to previous studies on asymmetry information on the standard dual model results of the study

the effects of price on household demand for food and calories in poor countries are our databases giving reliable estimates food price policy relies heavily on estimated price elasticities of food demand to help balance the nutritional and economic objectives in poor countries economists use either unit values ratios of household expenditure to quantity purchased or community prices enumerated from vendors in local markets as proxies for market prices when estimating price elasticities with household survey data biases are believed to result from using unit values due to measurement error and quality effects but evidence on this issue is lacking and even less is known about community prices this article provides an empirical evidence from vietnam which suggests that economists should exercise caution when estimating price elasticities from household surveys a 14 food demand system is estimated alternatively with unit values or community prices and the elasticity of calories with respect to rice prices is calculated this elasticity is more than twice as large 0 54 versus 0 22 when community prices are used rath

product aggregation bias as a specification error in demand systems inherent in all demand studies is some form of product aggregation which can lead to product aggregation bias this article develops a simple procedure for incorporating product aggregation bias in demand systems that permits testing of product aggregation bias with a standard likelihood ratio test an empirical illustration of the procedure demonstrates the importance of proper product aggregation

estimating food demand in paraguay from household survey data we estimate a food demand system in paraguay based on the 1997 national household survey considering 12 food categories to obtain demand elasticity estimates from household survey data accounting for quality effects measurement errors and censored observations price indexes are obtained from ordinary least squares predictions of changes in unitary values caused by spatial and temporal variations and the two step estimation procedure shonkwiler and yen 1999 is applied our approach yields reasonable estimates of combined quantity and quality responses with respect to price results suggest distinct consumption behavior in urban and rural areas particularly for chicken eggs dairy and fats and oils which are likely because of differences in the food distribution system and availability of nonmarket food sources

the wealth of mexican americans this paper analyzes the sources of disparities in the relative wealth position of mexican americans results reveal that unlike the racial wealth gap mexican americans wealth disadvantage is in large part not the result of differences in wealth distributions conditional on the underlying determinants of wealth rather mexican americans wealth disadvantage is attributable to the fact that these families have more young children and heads who are younger mexican americans low educational attainment also has a direct effect in producing a wealth gap relative to other ethnic groups even after differences in income are taken into account income differentials are important but do not play the primary role in explaining the gap in median net worth finally geographic concentration is generally unimportant but does contribute to narrowing the wealth gap between wealthy mexican americans and their white and black counterparts

prices and unit values in poverty measurement and tax reform analysis researchers often use unit values household expenditures on a commodity divided by the quantity purchased as proxies for market prices when calculating poverty lines and estimating consumer demand equations such proxies are often needed because community price surveys in developing economies are either absent or suffer quality problems however using unit values may result in biases due to measurement error and quality effects in a household survey experiment information on prices was obtained in three ways from unit values from a market price survey and from the opinions of householders who were shown pictures of items and asked to report the local price the three sets of price data are used to calculate poverty lines estimate price elasticities and analyze marginal tax reforms there are substantial biases when unit values are used as a proxy for market price even when sophisticated correction methods are applied performance was better for the price opinions of household members the results highlight the importance of price collection methods and the need to consider the wider costs of having potentially unreliable community level price data

the assessment macroeconomic policy after emu in this paper we discuss the emergence of the new european macroeconomic structure within emu we focus on three important elements the wage fixing authorities in each country the fiscal authorities in each country and the single european central bank ecb we identify serious problems which might arise in coordinating both the wage setters and the fiscal authorities and argue that these problems could be exacerbated if the ecb conducts monetary policy inappropriately in the light of this we provide recommendations for the conduct of monetary policy by the ecb the paper also briefly discusses financial stability issues and the interaction between the countries in emu and the rest of the world copyright 1998 by oxford university press

effects of subsidies in russian dairy farming this study develops a microeconometric model of specialized dairy farms in the moscow region using panel data over the period 1995 2001 the model is used to analyze the role of subsidies on profit as well as input and output allocation theoretical conditions for short term profit maximization are not rejected by the data differences between farms allow for a fixed effect specification the dairy producers in the region demonstrate a low responsiveness to market signals but technology change becomes important labor land and livestock had low shadow prices although subsidies have a distorting effect on the input output mix this study shows they relieve the credit constraints on dairy farms and have an important positive influence on farm profit

engel s law and linear in moments aggregation aggregation of individual engel curves is considered such that aggregate food demand depends on the moments of the distribution of income across individuals given that aggregate demand is the sum of individual demands consistent aggregation imposes a structure called the linear in moments form this form is used to test whether the mean and second moment of income must be used to capture aggregate food demand empirical analysis strongly supports the proposition that both the mean and variance of income are required hence our results show that aggregate food demand under consistent aggregation is inherently sensitive to changes in the distribution of income

the food system transformation in developing countries a disaggregate demand analysis for fruits and vegetables in vietnam abstract food systems in developing countries are currently undergoing a rapid transformation towards high value products and modern supply chains while supply side aspects of this transformation have been analyzed previously issues of consumer demand have received much less attention this article analyses demand patterns for fresh fruits and vegetables in vietnam using household survey data and a demand systems approach demand for products from modern supply chains particularly supermarkets and non traditional imports is highly income elastic and the income effect is stronger than the impact of prices and supermarket penetration this highlights the importance of considering demand side aspects when projecting future trends our results imply a continued restructuring of the food sector in the further process of economic development

using food taxes and subsidies to achieve emission reduction targets in norway food production contributes considerably to global greenhouse gas ghg emissions animal products particularly meat from ruminants generally have higher ghg emissions than plant products over the last few decades the global per capita consumption of animal products has increased this has a negative impact on climate change land and water availability and human health we are faced with the two fold challenge of reducing ghg emissions while still producing enough food for our growing population part of the solution could be for consumers to change towards a more sustainable diet in this paper we take norway as a case study for estimating optimal taxes and subsidies on different food items which can change consumption patterns in order to reduce the ghg emissions derived from the average norwegian diet in the estimate we ensure that the average calorie intake with the new diet remains the same as with the current diet and factor in other health considerations our findings suggest that limited but useful emission reduction targets can be set with only a few changes in diets the methodology presented in this paper may be used to estimate optimal climate taxes and subsidies under different emission quantities taxes subsidies and health constraints

black white differences in wealth and asset composition using data from the 1976 and 1978 national longitudinal surveys of young men and young women this study examines racial differences in the magnitude and composition of wealth and the reasons for them on average young black families hold 18 percent of the wealth of young white families and hold their wealth in proportionately different forms even after controlling for racial differences in income and other demographic factors as much as three quarters of the wealth gap remains unexplained we speculate on the causes for this concluding that racial differences in intergenerational transfers and to a lesser extent barriers to the accumulation of business and home equity most likely play a role

the implications of heterogeneous habit in consumer beverage purchases on soda and sin taxes abstract in this article we study the heterogeneity of habit strength in households demand for regular carbonated sweetened beverages csbs and beer in the united states a demand model that nests a smooth transition function is used to describe habit based consumption patterns revealing heterogeneous strengths of habits among households we find that more habitual consumers those with a strong preference for a particular product are not as sensitive to price or expenditure as the aggregate population this finding is further supported by simulations of the potential effects of soda and beer taxes we find the aggregate response to soda and beer taxes is smaller than when the influence of habit is assumed to be homogeneous

on the decomposition of wage differentials the often used method for decomposing wage differentials into human capital and discrimination components is reformulated so that both t he disadvantage or cost discrimination it imposes on a black or minority wage earner and the advantage or benefit it bestows on a white or majority wage earner can be estimated copyright 1988 by mit press

on the impossibility of central bank independence four decades of time and intellectual inconsistency the intellectual justification for modern central banking time inconsistency celebrated its fortieth anniversary in 2017 alongside the cambridge journal of economics however the key progeny of the time inconsistency literature central bank independence has fundamental flaws that have been thus far neglected in mainstream research in the first instance the argument for independence relies on a utilitarian rather than institutional analysis one that neglects the genesis of central banks and their relation to other institutions within a country second central bank independence neglects the complex interdependencies of the global monetary and financial system applying an institutional lens to the concept of central bank independence i conclude that independence fails under the reality of globalization as much as it does in a domestic context with central banks reliant on all manner of political institutions they are never really independent operationally or in terms of policy

the demand for meat and fish in spain urban and rural areas abstract the aim of the paper is to explain to what extent meat consumption patterns in spain are different in rural and urban areas and which are the factors explaining differences and similarities a demand system using cross section data from the latest spanish national survey has been estimated unit values have been used instead of market prices and price and quality effects have been obtained the main conclusion is that meat consumption patterns in urban and rural areas are not really different as regards economic factors some small income and price effect differences have been found specially for fresh pork and fish responses to changes in income and price are higher for fresh pork consumption in rural areas and for fish in urban areas

preferences spatial prices and inequality abstractthis study examines the effect of prices on inequality in rural india during the period of economic reforms and beyond 1999 2000 2009 2010 it proposes a framework for calculating exact price indices based on the exact affine stone index easi demand system and shows its usefulness by calculating spatial prices and regionally varying temporal prices that allow for both differences in preferences between states and over time the study finds that the nature of inflation has been regressive during 1999 2000 2004 2005 and progressive during 2004 2005 2009 2010 and that the effects of temporal price inflation and spatial prices on inequality are qualitatively different

why do mexican americans earn low wages using current population survey data from november 1979 and 1989 i find that mexican americans earn low wages primarily because they possess less human capital than other workers not because they

estimation of complete demand systems from household budget data the linear and quadratic expenditure systems in this paper we explore two issues in empirical demand analysis the estimation of complete systems of demand equations using household budget data section i and the incorporation of demographic characteristics into such systems section ii although there are numerous studies which use time series data to estimate complete demand systems and many which estimate engel curves from household budget data there are virtually none which combine budget data from different periods to estimate complete systems since each budget study corresponds to a single price situation one might conjecture that estimation of complete systems would not be possible unless budget studies were available from a large number of periods this is incorrect in section i we argue that interesting complete demand systems can be estimated from a small number of budget studies despite the limited price variability represented in such data to demonstrate this we use budget study data for two periods to estimate a pair of related demand systems the familiar linear expenditure system les and a quadratic expenditure system qes a generalization of les in which the demand equations are quadratic in total expenditure the inclusion of demographic variables in the analysis of household consumption patterns is desirable because there are likely to be systematic differences in the consumption behavior of households with different demographic characteristics but the effects of demographic characteristics have seldom been studied within the framework of complete demand systems in section ii we propose translating as a general method for incorporating demographic variables into complete systems of demand equations this method has not previously been discussed as a general technique for bringing demographic variables into demand systems although it has been employed in several studies to improve the estimates of the les and the qes presented in section i we reestimate these two systems using translating to incorporate family size

implications of high food prices for poverty in pakistan the study estimates the impacts of rising world food prices on poverty in rural and urban areas of pakistan household income and expenditure data for 2004 2005 is used to estimate compensated and uncompensated price and expenditure elasticities using the linear approximation of the almost ideal demand system taking the unexpected component of higher domestic food prices in 2007 2008 own and cross price compensated elasticities are used to derive the changes in the quantity consumed food expenditure and impacts on poverty assuming the food crisis happened in 2004 2005 the results indicate that poverty increased by 34 8 severely affecting the urban areas where poverty increased by 44 6 as compared to 32 5 in rural areas the estimates show that 2 3 million people are unable to reach even one half of poverty line expenditures while another 13 7 million are just below and 23 9 million are just above the poverty line in the short run it is important to ensure food availability to these people in the long run the policy environment of subsidizing urban food consumers by keeping wheat prices lower than the international price needs to be reconsidered to provide the right incentives to increase food availability

adult equivalence scales and food expenditures an application to mexican beef and pork purchases in the analysis of food expenditures the use of a simple count of household members as an estimate of household size implicitly assumes each household member has the same marginal impact in this analysis of mexican food expenditures endogenously determined adult equivalence scales are estimated in such a way that these marginal impacts are allowed to vary by household member age and gender the results of a series of hypothesis tests indicate a rejection of the implied null hypothesis of equal marginal expenditure impacts associated with the use of the traditional count based household size variable this study also rejects the null hypothesis of the equality of adult equivalent scales across the commodities included in this analysis

modelling household purchasing behaviour to analyse beneficial marketing strategies price promotion and generic advertising are two common strategies to increase consumer demand for food products which one is preferred over the other depends largely on the relative importance of

adjusting vat rates to promote healthier diets in norway a censored quantile regression approach the effects of health related taxes and subsidies on food and beverages have mainly been investigated using models that assume identical price responses among high and low consuming households diet related health problems are however more likely among households with high intakes of unhealthy foods or low intakes of healthy foods than in households with average intakes in this article we focus on purchases of healthy and unhealthy foods among low median and high purchasing households the effects of an increase in the norwegian value added tax vat on some unhealthy foods and a removal of the vat on some healthy foods are investigated using censored quantile regressions we reject equality of the own price elasticities for eight of nine food and beverage groups we find that a vat increase is more effective in reducing purchases of unhealthy foods among high purchasing households than a vat removal is in increasing the purchases of healthy foods among low purchasing households

the quantity and variety of households meat purchases a censored demand system approach this study investigates the demand for 10 disaggregated meat products by u s households a censored demand system which imposes budget constraints in both observed and latent shares is estimated along with a detailed explanation of the estimation procedure additional details about the methodology not provided in previous studies should help researchers to empirically apply the model an innovation of the study is to introduce the censored demand system model for studying the variety of a household s food purchases most households buy between seven and eight different products and hardly change the variety of their purchases with changes in meat expenditure