a simple estimator for simultaneous models with censored endogenous reggressors this paper presents a simple two step estimator for models with censored endogenous regressors and sample selection bias the approach unifies the literature on censored endogenous regressors and sample selection bias and provides extensions the procedure employs generalized residuals to adjust for the inconsistency caused by the endogeneity of the censored regressors the paper also provides two new tests of weak exogeneity an empirical example examining the trade off between fringe benefits and wages indicates that the estimation procedure works well a monte carlo experiment suggests that the proposed tests have good power properties copyright 1993 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

the effect of the food stamp program on nutrient intake i introduction one of the goals of the food stamp program as stated in the preamble of the law is to ensure that low income households have the opportunity to attain a nutritionally adequate diet previous economic studies evaluating the effects of food stamp income on nutrient intake have typically found a positive usually small correlation between the receipt of food stamps and nutrition two recent papers by devaney and moffitt 1991 and horton and campbell 1991 reach very positive conclusions concerning the effect of income in general papers from the nutrition literature generally find positive but weak and often insignificant effects of income on nutrition we employ information on two groups of low income people and find slightly different results for the two groups but very different results from many of the other studies for a sample of rural families taken from data from the rural income maintenance experiment we find almost no effect of food stamp income or evidence of selection bias 1 however for a sample of elderly people from the food stamp cashout project we find strong evidence that self selection into the food stamp program is highly correlated with attaining nutritional adequacy and that controlling for the self selection food stamp income and other income have a negative effect on nutrition we re examine the relationship between food stamp income and the nutrient intake of the poor and improve upon the existing literature in several important ways first it is possible that the positive correlation between the receipt of food stamps and nutrition is not a direct causal link but rather is the result of other factors affecting both for example in one of the samples examined in this paper only 50 percent of those eligible actually apply for and receive food stamps it could be the case that those who care more about nutrition are at the same time more likely to apply for and receive food stamps and more likely to maintain a nutritionally adequate diet these possible self selection problems can be disentangled from possible direct effects of food stamp income on nutrition using estimation procedures which correct for selection bias another issue which our research addresses is that the level of one nutrient may be correlated with the levels of other nutrients this may occur either because individuals who care about nutrition may be more likely to attain adequate levels of all nutrients or because combinations of nutrients occur naturally in foods we posit a multi equation model of the levels of nutrients and allow the disturbances in each equation to be correlated none of the previous studies considered this correlation finally we recognize the fact that above some level extra nutrients are superfluous if an individual has attained a nutritionally adequate diet then whether or not food stamp income allows him or her to consume more nutrients is irrelevant we are primarily interested in therefore whether or not an individual attains an adequate level of a nutrient rather than the absolute amount of a nutrient consumed in previous studies devaney and moffitt 1991 had addressed simultaneously the issues of selection bias and the superfluity of nutrients above some level the finding that food stamp income actually lowers nutrient intake ceteris paribus is a novel result for studies of the food stamp program but it would not be novel in the literature on nutrition in less developed countries pitt and rosenzweig 1985 behrman and deolalikar 1987 it is reasonable to believe that as income increases households employ relatively more money than time in household production this is silberberg s 1985 explanation for decreased efficiency in producing pure nutrients in other words as income increases people spend less time preparing meals and more money on foods which are easier to prepare if as is often the case foods which are more convenient to prepare are less nutritious than foods which require a lot of time to prepare then our result is not surprising

on the relevance of export demand conditions for capital income taxation in open economies this paper highlights the role of export demand conditions in determining the real cost of external funding for a country that has unrestricted access to funding from the international capital market at a predetermined real interest rate if such a country enters into a free trade arrangement which includes national treatment provisions for foreign investment then the capital income tax becomes an appropriate second best instrument for ensuring that national welfare is maximized if the capital income tax is set optimally the national return on savings will always be at least as great as the domestic marginal product of capital

production subsidy and countervailing duties in vertically related markets the hog pork case between canada and the united states this paper analyzes u s countervailing import duties aimed at offsetting the effects of a canadian hog production subsidy approximate countervailing duty formulae for two alternative objectives are derived the permissible range of these duties is illustrated and empirical evidence is provided to restore equilibrium at the presubsidy level in the u s hog market a countervailing duty on hog imports suffices this duty should be less than the unit hog production subsidy to restore equilibrium in both the u s hog and pork markets countervailing duties on both hog and pork imports are required such duties should be less than the unit subsidy and the duty on pork should be less than the duty on hogs

on the fiscal policy implications of low capital mobility some further evidence from cross country time series data in an attempt to determine whether an increase in a nation s private saving stimulated say by tax policies raises domestic investment or flows abroad feldstein and horioka 4 and feldstein 2 examined the relationship between the saving and investment rates of a sample of industrialized countries their results pointed to the existence of a strong almost one to one relationship between investment and saving rates they interpreted that finding as implying that the assumption of perfect capital mobility is invalid in that sustained increases in domestic saving rates induce approximately equal increases in domestic investment rates 2 150 the finding has farreaching implications for instance with low international capital mobility a country s growth prospects are tied to its saving effort if the saving effort is weak relative to investment opportunities realized investment rates could fall short of their potential and thus impact adversely on growth it also implies that fiscal deficits lead to neoclassical crowding out of investment so that both the keynesian view as well as the ricardian equivalence proposition do not hold since the feldstein and horioka henceforth denoted by fh article numerous papers have offered alternative explanations for the strong saving investment correlations many of those explanations center on supposed weaknesses of the econometric methodology employed by fh and feldstein one of the arguments initially proposed by fieleke 5 and tobin 19 is the policyresponse argument according to that argument if the government adjusts its policy instruments to offset current account imbalances a strong positive correlation between saving and investment would result however that correlation reflects the policy response and not low capital mobility in a recent paper summers 16 proposed a direct test of that argument and his empirical results

consumer knowledge food label use and grain consumption in the us responding to mounting evidence of the association between whole grain consumption and a reduced risk of heart problems and other diseases as well as an increased probability of body weight maintenance the us government has strongly encouraged its citizens to increase consumption of whole grains however compared against the 2005 federal dietary recommendations in 1994 1996 only 6 of americans met the current recommended whole grain consumption to narrow this huge gap between actual and recommended consumption of whole grains considerable changes in consumer behaviour will be needed a demand system with two censored consumption equations and endogenous food label use and nutrition knowledge variables is estimated to investigate the factors that affect the consumption of whole and refined grains food label use and nutrition knowledge are found to play important roles in the consumption of refined and whole grain products as are sociodemographic variables the results can be used to help develop

crises food prices and the income elasticity of micronutrients estimates from indonesia the 2008 global food price crisis and more recent food price spikes have led to a greater focus on policies and programs to cushion the effects of such shocks on poverty and malnutrition analysis of the income elasticities of micronutrients and their changes during food price crises can shed light on the potential effectiveness of cash transfer and nutrition supplement programs this article examines these issues using data from two cross sectional household surveys in indonesia taken before 1996 and soon after 1999 the 1997 98 economic crisis which led to a sharp increase in food prices first using nonparametric and regression methods the article examines how the income elasticity of calories from starchy staples as a share of total calories differs between the two survey rounds second the article estimates income elasticities of important nutrients in indonesia the analysis finds that although summary measures such as the income elasticity of the starchy staple ratio might not change during crises this stability masks important differences across individual nutrients in particular income elasticities of some key micronutrients such as iron calcium and vitamin b1 are significantly higher in a crisis year than in a normal year yet the income elasticities of others such as vitamin c remain close to zero these results suggest that cash transfer programs might be even more effective during crises to ensure the consumption of essential micronutrients but to ensure that all key micronutrients are consumed nutrition supplement programs are also likely required jel classification codes i12 o12 d12 e31 keywords income elasticity crisis prices micronutrients vitamin c starchy staple ratio

on china s domestic capital mobility and the role of the government empirical evidence over 1970 2006 this article investigates capital mobility across 29 provinces in china for the period of 1970 2006 using the feldstein horioka fh approach and campbell and mankiw s consumption smoothing cs framework it also examines the role of the governments in driving provincial capital mobility if the provincial government investment is not properly separated out from the private investment the fh framework applied to the overall saving and investment private plus public is found to underestimate the private saving investment correlation and hence overstates the degree of private capital mobility compared with the cs framework that focuses on the private consumption and output both frameworks indicate strong correlation between private saving investment and private consumption output implying strong barriers in the provincial private capital flows however there is ample evidence that capital mobility has been rising over time particularly after the mid 1990s it also appears that the government facilitates capital flows through inter governmental transfers during the sample period the extent of provincial capital mobility sheds light on the ability of different provinces in diversifying idiosyncratic provincial risks the earlier findings are robust to alternative measurements of variables and model specifications

impact of income on nutrient intakes implications for undernourishment and obesity the relationship between income and nutrient intake is explored nonparametric panel and quantile regressions are used engle curves for calories fat and protein are approximately linear in logs with carbohydrate intakes exhibiting diminishing elasticities as incomes increase elasticities range from 0 10 to 0 25 with fat having the highest elasticities countries in higher quantiles have lower elasticities than those in lower quantiles results predict significant cumulative increases in calorie consumption which are increasingly composed of fats though policies aimed at poverty alleviation and economic growth may assuage hunger and malnutrition they may also exacerbate problems associated with obesity

a probit latent variable model of nutrition information and dietary fiber intake nutrition information and intake data for a sample of u s household meal planners are used to estimate the effects of fiber specific information on dietary fiber intake the information variables are measured using survey questions on fiber content of foods attitude toward consuming fiber rich foods and awareness of fiber health links the evidence confirms the influence of nutrition information on fiber intake household income meal planner age smoking status vegetarian status race and ethnicity are major determinants of both information and intake education exerts a sizable intake effect by enhancing the information level direct and indirect effects of exogenous variables are reported

theory based measurement of the saving investment correlation with an application to norway i introduction the findings of feldstein and horioka 19c 0 have led to numerous theoretical and empirical papers on the close correlation between domestic saving and domestic investment and its supposed implications for international capital mobility feldstein and horioka 1980 317 state that with perfect world capital mobility there should be no relation between domestic saving and domestic investment saving in each country responds to the worldwide opportunities for investment while investment in that country is financed by the worldwide pool of capital however in a cross country regression using period averaged saving and investment figures for sixteen oecd countries they obtain a significant coefficient close to unity and conclude that capital is rather immobile this result constitutes the feldstein horicka puzzle as it contradicts the widely held perception that capital is highly mobile across countries subsequent empirical work confirmed the close correlation though its implication for the degree of capital mobility is a moot point see tesar 1991 this paper contributes to the understanding of the puzzle on both theoretical and empirical counts first we present a theory based econometric specification for estimating saving investment correlations second we discuss the possible usefulness of the estimates for detecting capital mobility third we provide empirical results for the interesting case of norway we argue that feldstein and horioka s basic idea that the saving investment correlation contains information about international capital mobility is correct but that the interpretation of the estimated correlation value must be altered substantially in view of the results derived from modern macroeconomic models our research is motivated by the observation that various regression equations have been used to measure the saving investment correlation but that none of them has a firm theoretical foundation this in turn raises questions about the interpretation and comparability of the existing empirical results we propose an econometric specification that is founded in intertemporal general equilibrium models in which agents optimize under intertemporal budget constraints we show that time series studies have estimated misspecified equations and that cross section studies are seriously flawed because they neglect dynamics as a result the puzzle may turn out to be an artifact caused by measurement errors however the significance of reliable measurement of saving investment correlations goes beyond solving the feldstein horioka puzzle because they represent stylized facts open economy models should explain norway serves as a suitable example to cement our methodological arguments with empirical evidence thanks to its system of capital controls which were phased out during the 1970s and 1980s the oil discoveries and its small size we demonstrate that the failure to take structural breaks into account seriously distorts the picture making a strong case for careful diagnostic testing our main empirical result is that the feldstein horioka puzzle does not exist for norway the paper proceeds as follows in section ii we briefly summarize the state of the discussion regarding feldstein and horioka s findings in section iii we derive our specification from the theory compare it to the previous specifications and discuss how to make inferences about capital mobility in section iv we sketch major developments in the post war norwegian economy notably the abolition of capital controls and the emergence of the important oil sector section v presents the empirical results section vi summarizes and concludes ii the feldstein horioka puzzle many authors have confirmed feldstein and horioka s result of a high and stable correlation of saving and investment for oecd countries both in cross country studies and in time series studies

anti dumping and countervailing duties under oligopoly this paper points out an error in a recent paper by dixit 1988 he claims that when there is no domestic production a fully countervailing duty is optimal it is shown here that only a partially countervailing duty is optimal

what do saving investment relationships tell us about capital mobility abstract this paper re examines the tests of international capital mobility based on saving investment regressions originated by feldstein while analyses of various measures of capital controls provide some support for the feldstein hypothesis it is shown that the existence of nontraded goods can independently lead to a saving investment correlation this theoretical critique is supported empirically an analysis of the stability of the coefficients resolves the oft reported puzzle in the literature that economies appear to have become increasingly closed financially over time

international capital mobility net versus gross stocks and flows abstract feldstein and horioka 1980 observed that net capital flows have been small in relation to domestic saving and investment flows for oecd countries in the post war period which they interpreted as evidence of low capital mobility this paper argues that the correlation between gross domestic and international financial flows can be a better indicator of capital mobilitythan net capital flows contrary to the conventional wisdom among international economists gross flows have been small in relation to gross domestic asset creation for oecd countries although by this measure the degree of capital mobility increased in the 1980s

information health risk beliefs and the demand for fats and oils mean and variance measures of health information about cholesterol and saturated fat are included in a demand system for fats and oils a bayesian model of health risk belief and consumer awareness surveys are the basis for computing these measures the empirical demand model shows that health information has resulted in significant increases in consumption for corn cottonseed and soybean oils and decreased consumption for butter and lard the predicted demand effects based on the bayesian information model are more reasonable than predictions from using either a time trend or a simple cumulative cholesterol information index copyright 1995 by mit press

health behavior health knowledge and schooling the positive correlation between schooling and good health is well documented one explanation is that schooling helps people choose healthier life styles by improving their knowledge of the relationship between health behaviors and health outcomes that is schooling improves the household s allocative efficiency in producing health this empirical study uses direct measures of health knowledge to test this explanation part of the relationship between schooling and the consumption of cigarettes alcohol and exercise is explained by differences in health knowledge however most of schooling s effects on health behavior remain after differences in knowledge are controlled for

international capital mobility what do national saving investment dynamics tell us abstract we interpret the relationship between national saving and investment in the long run as reflecting a solvency constraint and interpret the ease with which a country can run current account imbalances in the short run before it has to ultimately reverse the transaction at some future date to satisfy the solvency constraint as being positively related to the degree of international capital mobility we apply panel error correction techniques to data for 20 oecd countries from 1960 to 1999 we find that saving and investment display a long run cointegration relationship that is consistent with the interpretation that a long run solvency constraint is binding for each country over time however deviations from this long run equilibrium relation have become more persistent which suggests that capital mobility has increased

bad investments and missed opportunities postwar capital flows to asia and latin america since 1950 the economies of east asia grew rapidly but received little inter national capital while latin america received considerable international capitaleven as their economies stagnated the literature typically explains the failureof capital to flow to high growth regions as resulting from international capitalmarket imperfections this paper proposes a broader thesis that country specificdistortions such as domestic labor and capital market distortions also impactcapital flows we develop a dsge model of asia latin america and the rest ofthe world that features an open economy business cycle accounting framework tomeasure these domestic and international distortions and to quantify their con tributions to international capital flows we find that domestic distortions havebeen the predominant drivers of international capital flows and that the generalequilibrium effects of these distortions are very large international capital market distortions also matter but less

terms of trade dynamics in asia an analysis of national saving and domestic investment responses to terms of trade changes in 14 asian ldcs abstract i estimate a three equation model of savings investment and growth on pooled time series data for 14 asian developing countries to explore terms of trade dynamic effects on the current account a terms of trade deterioration lowers aggregate saving and raises investment in the current year it also exerts a positive lagged effect on investment due to the unanticipated temporary nature of the terms of trade change the current account oscillates before returning gradually to its steady state level the model explains 65 per cent of the variance in the sample countries current accounts over the period 1962 1983

assisting domestic industries under international oligopoly the relevance of the nature of competition to optimal policies optimal trade and industrial policies are derived for a home market that is supplied by a domestic firm and a foreign firm the optimal policy combination can be quite sensitive to the nature of the duopoly s competition for example for some cost and demand s tructures the optimal policy under cournot competition consists of a domestic production tax and a tariff but that under bertrand compet ition consists of a production subsidy and free trade copyright 1988 by american economic association

consumer demand for nutrition versus taste in four major food categories this study addresses the trade off between nutrition and taste in expenditure on breakfast cereal milk bread and soft drinks within each category products have similar cost and convenience but have markedly different flavor and nutritional content using annual expenditure data for a large sample of households participating in the acnielsen homescan system we regress a measure of healthiness on household demographics and market prices and find that households with college educated heads and higher incomes made significantly healthier choices in all four categories these effects are puzzling in that the nutritional differences between products were well known to consumers and there are no cost or convenience differences between them the presence of children was associated with less healthy choices especially for cereal and bread while older households made healthier choices in all categories except milk

socioeconomic factors affecting dietary status an appraisal this paper is to identify selected studies which have contributed to the present knowledge on socioeconomic characteristics of households and dietary status studies of the socioeconomic factors influencing dietary status have undergone significant change in recent years because of developments in statistics and household decision theory in the latter case households utilize various inputs for example food as purchased and the labor of household members to produce diets with varying features including nutrient compositions as indicated by the work of basiotis et al 1983 blanciforti green and lane davis et al 1982b sanderson and sexauer this framework provides a systematic rationale for the incorporation of socioeconomic variables into integrated statistical analyses of food consumption and dietary status more specifically the scope of traditional consumer demand theory has been significantly increased by household economic decision theory in addition permitting explicit incorporation of socioeconomic variables in engel and full demand systems this theory makes a plausible linkage between food intake and dietary status since household economics merely extends rather than refutes the intrinsic utility maximization properties of traditional demand theory the engel and demand systems relationships postulated linking socioeconomic characteristics food expenditure and dietary status are admitted by the theory stigler and b cker as will be demonstrated research results are accumulating on household size household income and expenditure nutrient levels in household food supplies and individual diets efficiency of food use away from home food consumption and use of convenience foods however studies of the relationship between socioeconomic characteristics of households and or individuals and nutrient availability and or dietary intake levels have produced varyingly conclusive results among other factors these varying results can be attributed to a different measures of diet quality and b differences in individual food intake versus food disappearance data further diet quality has been assessed directly units of nutrients available or consumed as well as indirectly expenditure levels on food the dietary components studied most frequently are food energy protein calcium iron vitamins a and c riboflavin thiamin and niacin however recently studies have given less attention to thiamin riboflavin niacin and vitamin c and instead have investigated vitamin b6 and magnesium in the near future this list of target dietary components will probably include cholesterol sodium dietary fiber zinc and copper this extension will occur for two reasons a consumer interest in these dietary components and b availability of survey data on these dietary components e g the u s department of agriculture s usda 1985 continuing survey of food intake by individuals and the 1987 88 nationwide food consumption sur

saving investment correlations and capital mobility on the evidence from annual data this paper evaluates the use of saving investment correlations to measure capital mobility it is argued that the intertemporal approach to the balance of payments predicts that the practice of calculating the correlation coefficient using long term averages of saving and investment shares biases the result toward accepting the hypothesis of capital immobility calculations based on annual data show that the correlation coefficient is much lower and that is varies considerably estimates of intranational capital mobility based on saving and investment shares of u s federal states show that the saving and investment link is much looser within a nation than among nations copyright 1992 by royal economic society

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

political vs currency premia in international real interest differentials a study of forward rates for 24 countries abstract different approaches to quantifying the degree of capital mobility for a cross section of currencies particularly saving investment correlations and tests of real interest parity have appeared to show a surprisingly low degree of financial integration we use a new data set forward rate data for 24 countries including many small industrialized countries and seven ldcs to decompose the real interest differential into two parts the covered interest differential or political premium and the real forward discount or currency premium the latter in turn can be decomposed into the exchange risk premium and expected real depreciation we find a high degree of capital mobility across political boundaries for most of the g 11 countries plus hong kong and singapore for our sample period of 1982 to 1987 even for most of the other ldcs and smaller industrialized countries for which covered interest parity clearly fails the political premium is not as big a component of the real interest differential as the currency premium france would appear to have higher capital mobility than most by the criterion of real interest differentials but is seen in fact to have low capital mobility by the criterion of covered interest differentials a clear example of the superiority of the latter criterion

the global financial crisis and the european single market the end of integration using various versions of the feldstein horioka fh coefficient we measure the time varying degree of capital mobility and economic integration in the european union prior research shows high correlation between domestic investment and savings implying low capital mobility this surprising result has led to subsequent research on the feldstein horioka puzzle our empirical findings show that the puzzle is less puzzling with a coefficient of 0 52 in the period 1990 1995 in eu countries approaching its minimum value of 0 02 in the period 2003 2008 this clearly indicates that the fh coefficient is time varying signalling a deepening of economic integration in the european union yet with the advent of the global financial crisis the fh coefficient has increased to 0 26 underlining worrying signs of disintegration

consumer knowledge and meat consumption at home and away from home we investigate the roles of consumer knowledge and sociodemographic factors in the consumption of meat products at home and away from home censored dependent variables and endogenous dietary knowledge are accommodated by developing and estimating a simultaneous equations system results suggest endogeneity of knowledge and support the system approach to demand functions for meat products dietary knowledge decreases consumption of beef and pork at home and away from home but does not affect poultry or fish consumption in either location men eat more meat and fish than women meat consumption declines with age and regional and racial ethnic differences are present published by elsevier ltd

determinants of dietary quality evidence from bangladesh summary whereas a large number of studies have been devoted to analyzing consumer demand for dietary quantity much less attention has been paid to the demand for dietary quality to address this gap in the literature this paper explores the determinants of dietary quality in bangladesh using data from a nationally representative household expenditure survey conducted in 2000 we find that while male education plays a positive role female education has a substantially stronger influence further female household headship is associated with lower dietary quality than male headship thus promoting female education and addressing the unique constraints faced by female headed households with respect to diet quality could be a significant policy instrument for addressing food insecurity in bangladesh

factors affecting the timing of purchasing of butter margarine and blends a competing goods analysis the purchase dynamics of a subset of food fats and oils are investigated using event history analysis applied to a panel of u s households the consumer behavior examined is the switching between purchases of butter margarine and butter margarine blends across purchase occasions we find that price previous purchases seasonality and household size and composition affect product switching probability

evaluating food plans and poverty thresholds 1987 evaluating food plans and poverty thresholds applied economics vol 19 no 10 pp 1341 1352

demographic variables in demand analysis in this paper the authors discuss five procedures for incorporating demographic variables into theoretically plausible demand systems translating scaling and the gorman reverse gorman and implicit prais houthakker procedures these five procedures are used to incorporate a single demographic variable the number of children in a household into the generalized ces demand system using household budget data for the united kingdom for the period 1966 1972 excerpt

domestic saving and international capital movements in the long run and the short run the evidence and analysis in this paper support the earlier findings of feldstein and horioka 1980 that sustained increases in domestic savings rates induce approximately equal increases in domestic rates of investment new estimates for the post opec period 1974 79 imply that each extra dollar of domestic saving increases domestic investment by approximately 85 cents in a sample of 17 oecd countries an explicit analysis of the problems of identification and simultaneous equations bias suggests that the regression estimates are more relevant as a guide to the long run response of international capital flows than to their short run behavior coefficient estimates based on annual variations in savings and investment are subject to potentially severe simultaneous equations bias that is not present when annual observations are averaged over a decade or more and the regression is estimated with a cross country sample of these averages a portfolio model of international capital allocation that is presented in the paper indicates that the short run change in the rate of net foreign investment in response to a sustained increase in domestic saving is likely to be substantially greater than the ultimate steady state response this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item

capital mobility and the relationship between saving and investment rates in oecd countries abstract this paper considers tests that use data on saving and investment rates to determine the degree of international capital mobility two types of evidence are presented to show that a high correlation between saving and investment rates across oecd countries can be consistent with a high degree of capital mobility this evidence qualifies the conclusions of previous studies and casts doubt on the usefulness of testing hypotheses about capital mobility with data on saving and investment rates

can drought increase total calorie availability the impact of drought on food consumption and the mitigating effects of a conditional cash transfer program abstract this study uses the panel data of a randomized experiment from the mexican progresa program to evaluate the impact of drought on total calorie availability and the mitigating effects of progresa on food consumption in periods of drought drought reduced total expenditures and total food expenditures but increased the total availability of calories this paradox can be explained by the impact of drought on the composition of calories that is it reduced the consumption of expensive calories in such foods as vegetables fruits and animal products but increased calories consumed from cheaper sources such as grains this study finds that progresa can completely mitigate the negative effects of drought on calorie availability from vegetables fruits and other sources however progresa cannot mitigate the impact of drought on calories available from grains the analysis also shows that during drought households who increase their consumption of grains get them mainly from purchased sources rathe

will developing country nutrition improve with income a case study for rural south india aggregate estimates of food expenditure are consistent with such a possibility implying income expenditure elasticities close to one however the high degree of aggregation at which such estimates are made means that the considerable increase in price per nutrient as income increases is ignored and the nutrient elasticities are therefore overstated estimates for a rural south indian sample indicate that this bias is considerable and that the true nutrient elasticities with respect to income may be close to zero

estimating saving investment correlations evidence for oecd countries based on an error correction model abstract saving investment correlations are important stylized facts in open economy macroeconomics and indicators of capital mobility they are best estimated by an error correction model ecm because an ecm is consistent with intertemporal general equilibrium models the ecm is a synthesis of previous approaches applying the ecm to the oecd countries we find that in general saving and investment are cointegrated the ecm is more powerful in detecting cointegration than the two step engle granger procedure estimates of the saving investment correlation are robust with respect to overdifferencing we find evidence of a large country effect and an increase in capital mobility within the oecd area

determinants of food consumption in rural sierra leone abstract this paper reports the application of a quadratic expenditure system with demographic variables to the household consumption leisure choice component of a household firm model a system of seven commodities is estimated including five foods non food and leisure appropriate for such a level of disaggregation a demand system is used the quadratic expenditure system which allows for a flexible relationship between full income and commodity expenditures without sacrificing parsimony in parameters demographic data on households are explicitly incorporated into the model allowing for a richer specification than can be achieved by using per capita variables the data are from a cross section survey of households in rural sierra leone price variation exists by region permitting estimation of a complete demand system engel curves are found to be significantly non linear with marginal expenditure on rice the major staple declining with higher income most foods are found to be reasonably price responsive with sizeable own price substitution effects declining with higher income aggregate labor supply is found to be price inelastic

health and wage a simultaneous equation model with multiple discrete indicators in this article we propose all econometric approach for estimating the simultaneouls effects of health and wages in a structural equations framework in the theoretical works of grossmana 1972a 1972b health is viewed as anl elldogen1oulsly determined capital stock the demand for health should rise with the wage rate as the rate of return to health investment increases with wage onl the other hand better health should raise market productivity and hence wages since health capital is an abstract theoretical concept it can hardly be measured quantitatively however most population surveys include various health indicators these indicators are usually discrete variables in the empirical work of grossman and benham 1974 these qualitative indicators are treated as continuous variables and two stage least squares estimation techniques are used this specification raises various econometric problems see e g goldberger 1964 pp 248 255 domencich and mcfadden 1975 and nerlove and press 1973 a satisfactory specification should take into account the discrete nature of the indicators our specification generalizes the dummy variables simultaneous equations system of heckman 1978 the measurement models of joreskog and goldberger 1975 and is closely related to the models of muthe n 1976 1979 muthen studies full information maximum likelihood procedures for estimation except for very simple cases this does not generally yield feasible or tractable procedures in this article we introduce a tractable procedure for statistical estimation and testing this specification and the estimation procedure is then applied to study the joint dependence of health and wages another departure of our approach from others is that we will test and correct the possible incompatibility of the various health capital indicators in the population surveys one may have subjective health indicators such as self evaluation of health which may reflect different populations perception of health we propose a statistical procedure for testing measurement compatibility and if required for correcting this problem this article is divided into two parts initially we describe the model specification estimation and statistical tests in a general simultaneous equation model with multiple discrete indicators in the second part of the paper we consider specification of a simultaneous equation model for health and wages the model

anti dumping and countervailing duties under oligopoly abstract this paper constructs a conjectural variations model of international oligopoly in which the home country s optimal policy responses to the foreign government s subsidies and foreign firms dumping can be calculated some theoretical support is found for tariffs that countervail part of the foreign export subsidy the optimal fraction depends on the size of own and cross effects in demand and on the extent of market competition however no normative case is found for anti dumping duties

regional effects of taxes in canada an applied general equilibrium approach this paper reports on an applied general equilibrium regional model for canada which is used to investigate the regional effects of taxes earlier literature on regional tax effects is reviewed and the main features of the model are briefly described existing literature on regional tax effects is largely non quantitative and does not discuss several important regional features of taxes such as taxes which are predominantly on products or industries located in particular regions results suggest that regional effects of taxes can be significant and in the canadian case at least do not tend to counterbalance one another in general richer regions tend to lose and poorer regions gain from federal taxes but other regional characteristics such as manufacturing non manufacturing or resource non resource can be important this abstract was borrowed from another version of this item

calories obesity and health in oecd countries theoretical models suggest that decisions about diet weight and health status are endogenous within a utility maximization framework in this article we model these behavioural relationships in a fixed effect panel setting using a simultaneous equation system with a view to determining whether economic variables can explain the trends in calorie consumption obesity and health in organization for economic cooperation and development oecd countries and the large differences among the countries the empirical model shows that progress in medical treatment and health expenditure mitigates mortality from diet related diseases despite rising obesity rates while the model accounts for endogeneity and serial correlation results are affected by data limitations

fiscal deficits and intergenerational welfare in almost small open economies the intergenerational welfare effects of government deficits are examined in a simple life cycle economy which can borrow at given interest rates and import at given prices but has unexploited market power in exports despite perfect capital market integration a deficit financed tax cut to the current young causes an immediate real exchange rate of return on domestic assets subsequently the real exchange rate depreciates to a lower steady state value and the after tax wage decreases by more than the tax increase needed to service the larger deficit

the demand for selected nutrients by greek households an empirical analysis with quantile regressions the article uses information from the 1993 1994 household consumption survey and the semiparametric quantile regression approach to analyze the demand for three macronutrients carbohydrates proteins and fats and three micronutrients minerals vitamins and cholesterol in greece according to the empirical results the age of the household head the degree of urbanization the percentage of food expenditure devoted to food away from home and the per capita consumption expenditure affect the intakes of nutrients across all the five quantiles considered the impact however of the household head s gender and the impact of his her educational achievement are located only at the lower and the higher quantiles respectively the expenditure elasticities are substantially lower than unity suggesting inelastic responses of nutrient intakes to per capita consumption expenditure

the theory and econometrics of health information in cross sectional nutrient demand analysis understanding the role of health information in food and nutrient demand has become an important issue over the last decade endogeneity and measurement error are two empirical problems that are inherent in this type of analysis while some type of instrumental variables estimation would appear the obvious solution this article provides several theoretical and empirical reasons why this is not the case in cross sectional analysis an alternative estimation strategy is pursued an empirical example is given and the implications are discussed copyright 2001 oxford university press

impacts of capital and land constraints on the economics of new livestock technology in western kenya abstract the introduction of new forages and milk marketing improvements was projected to permit even the smallest modeled farms in a western kenya region to adopt dual purpose goats and thereby improve family income and nutrition expanded credit permitted modeled medium and large farms especially to vigorously exploit these innovations credit also expanded income more than did goat management improvements because credit extension assistance marketing improvements and new forages will leave projected incomes of small farmers below those of medium and large farmers in the study region development of off farm jobs may still be necessary to supplement the incomes of this fast growing group the marginal value of capital for medium and large farmers with new livestock technology was high this suggests that government subsidized credit might be unnecessary with proper infrastructural and legal support private capital markets might develop as new livestock technology and marketing improvements expand the demand for borrowing

consumer attitudes and voluntary rate schedules for public utilities attitudes enter as latent explanatory variables in a model of consumers choice among optional rate schedules offered by a public utility a consistent estimator of the choice model is described that utilizes the distribution of the latent attitude variables conditional on manifest indicator variables the model is applied to households choice between time of use and non time differentiated rates for electricity to determine the impact of attitudes about energy conservation copyright 1987 by mit press

domestic savings intra national and intra european union capital flows 1971 1991 abstract this paper examines the relationship between savings and investment for the pre 1995 twelve members of the eu during the period 1971 1991 the results of the statistical analysis suggest that the capital market of the members of the eu resembles that of intra national regions implying a considerable degree of capital market integration this conclusion however is subject to several caveats the relationship between savings and investment in the case of portugal for example is unusual

estimating a household production function heterogeneity the demand for health inputs and their effects on birth weight the household production literature emphasizes that technical or biological processes condition input selection by households in their production activities along with prices and income exogenous variations in health to the extent that they are perceived by individuals heterogeneity lead to correlations between inputs and health outcomes that cannot be used to derive causal conclusions therefore estimates of health technology must be obtained from a behavioral model in which health inputs are themselves choices consistent estimates are reported of the effect of endogenous inputs such as medical care smoking and fertility on birth weight and fetal growth in the presence of health heterogeneity

information endogeneity and consumer health behaviour application to dietary intakes due to heightened public health interest a growing number of consumer health behaviour studies are focusing on the effect of health information on the demand for health inputs and outcomes many of these studies however have overlooked the potential endogeneity of information variables stemming from unobserved individual heterogeneity due to simultaneity bias ignoring endogeneity may lead to inaccurate estimates of informational effects on health behaviour using dietary intake data for fat saturated fat cholesterol and fibre this paper illustrates the pitfalls of treating health information related to these nutrients as exogenous variables in their demand equations in most of the estimated models the exogeneity of information is statistically rejected when the information variables are treated as exogenous variables their effects on dietary intakes are underestimated the estimated effects of key intake determinants such as income education ethnicity and race are also different in such a

tax policy and economic growth lessons from the 1980s the past seven years of u s economic policy and performance constitute a truly remarkable if confusing experiment few would have guessed in 1980 that inflation would fall rapidly to 4 percent and hold pretty steady during a lengthy recovery that productivity growth would partially rebound the national debt more than double capital imports reach 150 billion in a single year or that employment would continue to expand at rates envied by other advanced economies perhaps fewer still would have predicted two major and two minor tax reforms would be passed in six years a flip flop in depreciation schedules and a top personal tax rate below 30 percent while it is always easier to draw inferences concerning economic growth its determinants and policies affecting the determinants with long historical hindsight this paper will attempt to provide information evaluation and conjecture to draw some tentative lessons about the effects of tax policies in the 1980s on long run economic growth the good news from the 1980s is the remarkable achievement of substantially lower marginal tax rates making the government a much smaller silent partner in many economic decisions for example the tax advantage of debt finance is reduced substantially with the much lower marginal tax rates the bad news is that the nation could not afford all of the good news the very large budget deficits add to the instability in the tax code in addition to whatever other problems they cause moreover in a country with the lowest saving and investment rates in the advanced world the consequence of which may be to decrease our long run growth potential and short run trade competitiveness the remaining anti saving and investment features of our tax law while probably less important in the long run than the u s

factor rewards and the international migration of unskilled labor a model with capital mobility abstract conventional economic wisdom holds that the migration of unskilled labor from less developed countries to neighboring developed countries should be expected to narrow the wage gap between those countries and thereby reduce the incentive for further migration if capital is mobile internationally this reasoning may be inappropriate instead emigration of unskilled labor out of the less developed country provides an incentive for capital to leave the country too as a consequence wage rates move in the same direction in each country and the gap between wage rates across countries even may increase

crowding out in open economies results from a simulation study it has recently been shown that industrialized countries in the 1970s and 1980s are characterized by a high correlation between national saving and investment this regularly is considered puzzling in the context of highly integrated international capital markets in this paper the author shows that both the failure of real interest parity and productivity changes are each sufficient to generate a high positive correlation between national saving and investment these results indicate that it is easier than previously thought to reproduce a high correlation between saving and investment in models with perfect capital mobility

savings investment and international capital flows abstract the high correlation between national savings and domestic investment rateshas been interpreted as evidence that capital is not internationally mobile this paper surveys the theory and evidence on the relationship between savings and investment in a sample of 23 oecd countries a positive correlation between savings and investment rates is found in both the short and long runs however a wide variety of models generate such co movements in savings and investment in response to exogenous disturbances even under conditions of complete financial markets thus the savings investment correlation provides little evidence on the question of international capital mobility

vignettes on the world capital market this paper is motivated by a sense that we as a profession need to understand much better than we now do how the world capital market works we seem to be genuinely schizophrenic in the ways we build models many of them are closedeconomy models in which the rest of the world does not even appear yet others of them are models of the small open economy in which hardly any degree of freedom is left for economic policy to influence events lying behind the schizophrenia is i believe a genuine ignorance on our collective part of how the world capital market

domestic determinants of the current account balance of the united states the u s economy is found to be sufficiently open to make the balance on foreign transactions an essential part of the equilibration process between saving and investment specifically over the past two decades changes in the national saving rate have increasingly been matched by changes in net foreign rather than domestic investment thus it would be counterfactual to assume in policy discussions that measures to raise the national saving rate add fully to the stock of productive capital in the united states barring only keynesian complications conversely a stimulus to domestic investment could be validated in part by drawing on foreign saving

economics food choices and nutrition abstract our goal in this paper is to examine the role and influence of economic factors defined rather broadly on consumer food choices and hence nutritional outcomes we attempt to do this in a non technical fashion we examine the role of prices especially as they relate to the affordability of food in the united states and as a policy lever income is analyzed as a driving force behind changes in eating habits in particular increasing the demand for convenience the role of time constraints as well as time preference are examined as links to healthy eating habits and as forces behind current trends in eating patterns information and knowledge are given prominent play as counter balances to economic forces driving eating habits we conclude with and examination into maternal nutrition knowledge and children s dietary quality

schooling health knowledge and obesity the connection between schooling and health is well documented an important empirical issue that needs to be examined however is whether schooling s effects are due to individual health knowledge differences this empirical study examines this issue with an increasingly important health indicator obesity since provision of health knowledge is a major tool of public agencies promoting health this empirical study uses a new direct measure of health knowledge to test this hypothesis the results show that knowledge is inversely related to the probability that an individual is obese schooling s effects on relative weight and the probability of being obese are explained by differences in knowledge this result may imply that schooling s effect on the allocative efficiency of the household production of health is the main reason schooling is linked to health behaviour the result also may imply that the most effective method of health education is to highlight the disease element of poor dietary habits a

the feldstein hoiroka puzzle across countries this article tests the feldstein hoiroka puzzle for a sample of 49 countries from two angles that of co movements in the saving investment series and the magnitude of the saving retention coefficient src the overall conclusion we obtain from the results of three different cointegration tests leaves no room for puzzle in the majority of the countries included in the sample on the other hand various statistical tests applied to the srcs show that there are significant differences among the high income middle income and low income country groups with regards to the salient aspects of capital mobility first there are significant differences in the average srcs of the country groups second the srcs are differently distributed around their means among the country groups the results yielded by a third test dictate that future research should pay more attention to the underlying distribution of the srcs within country groups when testing the country size argument

more evidence on nutrition demand income seems overrated and women s schooling underemphasized abstract malnutrition is widespread in the developing world controversy continues concerning the roles of income household size and women s schooling on nutrient demand empirical estimates for nicaragua suggest that income elasticities are small and inversely associated with income levels there are some economies of scale in household size the elasticity for women s schooling is higher than those for income or household size and women s backgrounds are important the results cast doubt on the strong emphasis the world bank and others have placed on income and suggest that schooling may be working through tastes not only through productivity

towards a theory of famine relief policy abstract this paper examines how famine mortality is related to the distribution of food consumption a theoretical model is proposed of how individual survival chances are affected by changes in consumption uncertainty in survival prospects arises from the errors made by any observer in assessing health at given current consumption the theory is used to explore two policy issues in famine relief the choice of budgetary rules for allocating emergency aid and the case for price stabilization policies during famines applications to data for two famines in south asia suggest that successful price stabilization would have had substantial benefits in reducing mortality