government education expenditures in early and late childhood human capital investment in early childhood can lead to large and persistent gains beyond this window of opportunity human capital accumulation is more costly despite compelling evidence in support of this notion government education spending is allocated disproportionately toward late childhood and young adulthood we consider the consequences of a reallocation using an overlapping generations model with private and public spending on early and late childhood education taking as given the higher returns to early childhood investment we find that the current allocation may nonetheless be appropriate when we consider a homogeneous population this can hold for moderate levels of government spending with heterogeneity this can hold for middle income workers lower income workers by contrast may benefi tf rom a reallocation

the effect of income on child development this study presents estimates of the effect of parental income on children s cognitive social and emotional development the effect of current income is small especially when income is treated as endogenous the effect of permanent income is substantially larger but relatively small when compared to the magnitude of recent policy induced changes in income family background characteristics play a more important role than income in determining child outcomes policies that affect family income will have little direct impact on child development unless they result in very large and permanent changes in income

explaining cross cohort differences in life cycle earnings abstract college educated workers entering the labor market in 1940 experienced a 4 fold increase in their labor earnings between the ages of 25 and 55 in contrast the increase was 2 6 fold for those entering the market in 1980 for workers without a college education these figures are 3 6 fold and 1 5 fold respectively why are earnings profiles flatter for recent cohorts we build a parsimonious model of schooling and human capital accumulation on the job and calibrate it to earnings statistics of workers from the 1940 cohort the model accounts for 99 of the flattening of earnings profiles for workers with a college education between the 1940 and the 1980 cohorts 52 for workers without a college education the flattening in our model results from a single exogenous factor the increasing price of skills the higher skill price induces i higher college enrollment for recent cohorts and thus a change in the educational composition of workers and ii higher human capital at the start of work life for college educated workers in the recent cohorts which implies lower earnings growth over the life cycle

household choices and child development the growth in labor market participation among women with young children has raised concerns about the potential negative impact of the mother s absence from home on child outcomes recent data show that mother s time spent with children has declined in the last decade while the indicators of children s cognitive and noncognitive outcomes have worsened the objective of our research is to estimate a model of the cognitive development process of children nested within an otherwise standard model of household life cycle behavior the model generates endogenous dynamic interrelationships between the child quality and employment processes in the household which are found to be consistent with patterns observed in the data the estimated model is used to explore the eects of schooling subsidies and employment restrictions on household welfare and child development

do parental time investments react to changes in child s skills and health abstract parental time investment decisions have been found to have important effects on child development however little is known about the response of parents to changes in their child s human capital across time using the longitudinal study of australian children we measure time investments considering the time young children spend with or without parents in different activities by adopting a child fixed effect instrumental variable estimation we find that parents reinforce for high socio emotional skills by spending more time socialising with their child and compensate for low cognitive skills by increasing the time the child spends in learning activities

dynamic almost ideal demand systems an empirical analysis of alcohol expenditure in ireland this paper presents a dynamic form of the almost ideal demand system aids three versions of the static aids model are employed to determine the preferred long run equilibrium model and represents the short run dynamics by an error correction mechanism this estimation procedure is then applied to alcohol expenditure in ireland the estimated point elasticities are consistent with previous studies and a priori expectations beer and spirits are found to be price inelastic in both the short and long run while wine is price inelastic in the short run and price elastic in the long run

the demand for home produced and imported alcoholic beverages in cyprus the aids approach the purpose of this paper is to investigate the demand and its composition between home produced and imported for alcoholic beverages in cyprus the methodological approach used is the almost ideal demand system aids both in static and dynamic terms empirically the aids both in its static and dynamic version was estimated using time series 1970 1992 for three sets of data which include 1 alcoholic beverages wine beer other brandies broken down between home produced and imported model a 2 alcoholic beverages only without disaggregation between home produced and imported model b and 3 aggregate alcoholic beverages wine beer other brandies and food model c zellner s iterative estimation procedure was used for estimating the model the empirical findings 1 strongly support the dynamic version of the aids over its static alternative and 2 provide certain guidelines concerning economic policies relating to an increase in government revenues and changing the composition between

the complex attitudes to alcohol taxation alcoholic beverages are taxed at very different rates across the eu which implies extensive cross border shopping therefore there is an ongoing debate about harmonization of alcohol taxes among countries sweden with a tradition of high alcohol taxes due to public health arguments has the highest excise duties on spirits in the eu but because of this the occurrence and possible problems caused by cross border shopping are also extensive using a questionnaire survey i analyse the swedes attitudes to alcohol taxation and find that these two sides of the coin are important determinants many respondents want to decrease the alcohol tax while some even want to increase it those most positive to alcohol taxation are those who regard increased alcohol consumption as a worrying problem and those living in areas where many adults are treated for alcohol related diseases however the ordered probit analysis also shows that those who support the eu membership are more supportive of reduced taxation to

early childhood education and economic growth abstract we study the effects of early childhood skill formation on productivity and schooling we add early childhood human capital to a standard continuous time life cycle economy and assume complementarity between educational stages agents are homogenous and choose the intensity of preschool education how long to stay in formal school labor effort and consumption the model is calibrated to the us from 1961 to 2008 and matches the data very well and closely reproduces the paths of schooling hours worked relative prices and gdp we find that early childhood education can explain a large part of the observed increase of years of schooling in the u s since 1961 and it was as important as formal education for the increase of labor productivity in the period furthermore we show that small reallocations of public expenditures from formal education to early childhood education would have sizable impacts on income per capita and productivity

early maternal time investment and early child outcomes using large longitudinal survey data from the uk millennium cohort study this article estimates the relationship between maternal time inputs and early child development we find that maternal time is a quantitatively important determinant of skill formation and that its effect declines with child age there is evidence of long term effects of early maternal time inputs on later outcomes especially in the case of cognitive skill development in the case of non cognitive development the evidence of this long term impact disappears when we account for skill persistence

does money matter a comparison of the effect of income on child development in the united states and great britain in this paper we examine the effect of income on child development in the united states and the united kingdom as measured by scores on cognitive behavioral and social assessments in line with previous results for the united states we find that for both countries income generally has an effect on child development that is positive and significant but whose size is small relative to other family background variables

does schooling cause growth a number of economists find that growth and schooling are highly correlated across countries a model is examined in which the ability to build on the human capital of one s elders plays an important role in linking growth to schooling the model is calibrated to quantify the strength of the effect of schooling on growth by using evidence from the labor literature on mincerian returns to education the upshot is that the impact of schooling on growth explains less than one third of the empirical cross country relationship the ability of reverse causality to explain this empirical relationship is also investigated

the contribution of rising school quality to u s economic growth abstract u s public school expenditures per pupil increased by a factor of 9 during the 20th century this paper quantifies how much u s labor quality has grown due to the rise in educational spending a schooling model and cross sectional earnings variations across cohorts are exploited to identify the effect of the increased school expenditures on labor quality growth the findings are that i u s labor quality increased by 0 4 per year between 1967 and 2000 one fifth of which is attributable to the rise in educational spending and ii labor quality growth explains one quarter of the rise in labor productivity

economic and demographic factors in australian alcohol demand in the last two decades total pure alcohol consumption in australia has declined by about 31 and currently it is at the same level as it was in the 1950s australians consumed about 10 litres of pure alcohol per person in 1982 and now the level has declined to about 7 litres of pure alcohol per person during the last four decades per capita beer consumption has reached a peak of 140 litres in 1975 and has fallen to a low 93 litres in 1999 wine consumption has increased four fold while spirits consumption has stayed around the same level this paper using the australian consumption data for beer wine and spirits for the period 1956 1999 aims to explain the change in consumption patterns of beer wine and spirits by considering the effects due to changes in economic and demographic factors the results show that while income and prices significantly influence the consumption patterns of alcohol the increasing australian elderly population also plays an important role

early late or never when does parental education impact child outcomes we estimate the causal effect of parents education on their children s education and examine the timing of the impact we identify the causal effect by exploiting the exogenous shift in parents education levels induced by the 1972 minimum school leaving age reform in england increasing parental education has a positive causal effect on children s outcomes that is evident in preschool assessments at age 4 and continues to be visible up to and including high stakes examinations taken at age 16 children of parents affected by the reform attain results around 0 1 standard deviations higher than those whose parents were not impacted

learning your own ability abstract families human capital investments depend on beliefs about their children s performance i build a dynamic model of expectation formation to show how agents use both observable and unobservable information to predict their school scores the model shows parents and students have substantial knowledge of unobservable factors affecting their performance especially in middle and high school families are overconfident towards expecting higher grades and expectation formation differs by race families ability to predict future scores improved substantially during middle school due to several factors lower bias and variance of the prediction errors and a better use of past scores as predictors

partial insurance and investments in children this article studies the impact of permanent and transitory shocks to income on parental investments in children we use panel data on family income and an index of investments in children from the children of the national longitudinal survey of youth we find that there is partial insurance of parental investments against permanent income shocks but the magnitude of the estimated responses is small we cannot reject the hypothesis of full insurance against temporary shocks another interpretation of our findings is that insurance possibilities are limited but the fact that skill is a non separable function of parental investments over time results in small reactions of these investments to income shocks especially at later ages

the demand for alcohol in the united kingdom using the aids model we show that there exists for the uk a stable long run relationship between expenditure shares on beer cider spirits and wine alcohol prices total alcohol expenditure and a range of non economic variables relating to advertising licensing the employment social class and demographic characteristics of consumers and climate our estimates of key price and income elasticities generally lie between those found from other time series studies which exclude most of these non economic variables and those found from cross section studies which generally include them however the restrictions required for separability homegeneity and symmetry although not those for perfect price aggregation are decisively rejected

why the apple doesn t fall far understanding intergenerational transmission of human capital parents with higher education levels have children with higher education levels however is this because parental education actually changes the outcomes of children suggesting an important spillover of education policies or is it merely that more able individuals who have higher education also have more able children this paper proposes to answer this question with a unique dataset from norway using the reform of the education system that was implemented in different municipalities at different times in the 1960s as an instrument for parental education we find little evidence of a causal relationship between parents education and children s education despite significant ols relationships we find 2sls estimates that are consistently lower than the ols estimates with the only statistically significant effect being a positive relationship between mother s education and son s education these findings suggest that the high correlations between parents and children s education are due primarily to family characteristics and inherited ability and not education spillovers

aggregation without separability a generalized composite commodity theorem this paper provides general conditions for aggregating commodities without separable utility these conditions impose weaker and more empirically plausible restrictions on price movements than the currently existing alternative to separability the hicks leontief composite commodity theorem the idea is to allow departures from hicks leontief that take the form of well behaved error terms utility functions that permit generalized composite commodity aggregation include the aids model the translog all homothetic utility functions and any utility function when demands are aggregated to two groups of goods implications of empirical nonstationarity of relative prices for aggregation and demand estimation are considered copyright 1996 by american economic association

how important is human capital a quantitative theory assessment of world income inequality we develop a quantitative theory of human capital investment in order to evaluate the magnitude of cross country dierences in total factor productivity tfp that explains the variation in per capita incomes across countries we build a heterogeneousagent economy with cross sectional variation in ability schooling and expenditures on schooling quality in our theory the parameters governing human capital production and random ability process have important implications for a set of cross sectional statistics mincer return variance of earnings variance of schooling and intergenerational correlation of earnings these restrictions of the theory and u s household data are used to pin down the key parameters driving the quantitative implications of the theory our main finding is that human capital accumulation strongly amplifies tfp dierences across countries in particular we find an elasticity of output per worker with respect to tfp of 2 8 a 3 fold dierence in tfp explains a 20 fold dierence in output per worker we argue that the cross country dierences in human capital implied by the theory are consistent with a wide array of evidence including earnings of immigrants in the united states average mincer returns across countries and the relationship between average years of schooling and per capita income across countries the theory implies that using mincer returns to measure human capital understates dierences across countries by a factor of 2

analysis of trends in technical and allocative efficiency an application to texas public school districts abstract we present a new dea based method to analyze efficiency trends over time and differences across subgroups in a panel data setting we employ a result that the aggregate technical and allocative inefficiency score equals the technical inefficiency when input quantities are aggregated into a single total input cost variable and develop test procedures to evaluate the presence of allocative inefficiency we apply these methods to test for the presence of allocative inefficiency in texas school districts over 1993 99 and analyze shifts and trends in both technical and allocative inefficiencies over time for different regions our empirical results indicate the existence of statistically significant allocative inefficiencies while technical inefficiency increased over the six year sample period allocative inefficiency remained relatively stable during this period these results for the full sample obtain also when we repeat the analysis for different regions

intergenerational persistence of earnings the role of early and college education recent empirical evidence from the united states indicates a high degree of persistence in earnings across generations designing effective public policies to increase social mobility requires identifying and measuring the major sources of persistence and inequality in earnings we provide a quantitative model of intergenerational human capital transmission that focuses on three sources innate ability early education and college education we find that approximately one half of the intergenerational correlation in earnings is accounted for by parental investment in education in particular early education we show that these results have important implications for education policy

cross country alcohol consumption comparison an application of the rotterdam demand system this paper analyses the consumption patterns of the three beverages beer wine and spirits in nine countries australia canada finland japan new zealand norway sweden the uk and the us using the rotterdam demand system a cross country comparison of the results shows that in most countries i wine consumption has grown at a fasteer rate than beer and spirits ii the proportion of consumers expenditure on alcohol is declining iii beer is a necessity and spirits is a luxury iv the demand for the three beverages is price inelastic and iv all three beverages are pair wise substitutes we also investigated the hypothesis of identical parameters for all countries by pooling the data across countries and found that the data do not support the hypothesis

intrafamily resource allocations a dynamic structural model of birth weight using large american and british survey data this paper provides structural estimates of the production functions for birth weight and fetal growth in addition to maternal smoking we estimate the impact of when a mother stops work which has not been considered in the literature mothers work interruptions of up to 3 months before birth have a positive effect on birth outcomes especially among british children parental behavior appears to respond to child idiosyncratic endowments in a way that suggests that parents have inequity aversion concerns evidence in favor of inequity aversion emerges also from the analysis of breast feeding decisions

life cycle schooling and dynamic selection bias models and evidence for five cohorts of american males this paper examines an empirical regularity found in many societies that family influences on the probability of transiting from one grade level to the next diminish at higher levels of education we examine the statistical model used to establish the empirical regularity and the intuitive behavioral interpretation often used to rationalize it we show that the implicit economic model assumes myopia the intuitive interpretive model is identified only by imposing arbitrary distributional assumptions onto the data we produce an alternative choice theoretic model with fewer parameters that rationalizes the same data and is not based on arbitrary distributional assumptions

birth spacing and sibling inequality asymmetric information within the family this paper formulates a dynamic model of birth spacing incorporating uncertainty about and heterogeneity in birth outcomes and joint production to assess how the spacing of children responds to exogenous shocks in birth outcomes estimation technics are developed that use assumptions about the constraints on the information available to parental decision makers associated with the sequential nature of childbearing ignored in static models of intra household behavior section 1 examines the technology of birth spacing and its consequences for the level and distribution of child outcomes and resources in section 2 the model compares alternative estimation technics in section 3 data from a probability sample of us white married couples are used to describe intrafamily variation in birth outcomes and spacing and to test for heterogeneity bias the results in section 4 suggest that across family heterogeneity bias may be less important than within family heterogeneity bias in estimates of the effects of birth order and timing patterns of births on health results from family fixed effect of sibling models of child quality determination that ignore intrafamily substitution may be misleading section 5 estimates how birth outcome endowments and information on gender are used to estimate how differences in them affect subsequent birth timing decisions and sibling inequality results suggest that 1 the birth of 1st born children tends to be delayed among families with high income husbands highly educated parents superior health endowment or high tastes for health investments 2 the proximity of the birth of the 2nd child to that of the 1st child is a positive function of the quality of the 1st born and 3 the spacing and existence of a 3rd child is significantly related to the birth outcomes sex composition and sex ordering of the 1st and 2nd children

the determinants of human capital formation during the early years of life theory measurement and policies in this paper i discuss a research agenda on the study of human capital accumulation in the early years with a particular focus on developing countries i discuss several methodological issues from the use of structural models to the importance of measurement and the development of new measurement tools i present a conceptual framework that can be used to frame the study of human capital accumulation and view the current challenges and gaps in knowledge within such an organizing structure i provide an example of the use of such a framework to interpret the evidence on the impacts of an early years intervention based on randomized controlled trial

human capital and the wealth of nations we reevaluate the role of human capital in determining the wealth of nations we use standard human capital theory to estimate stocks of human capital and allow the quality of human capital to vary across countries our model can explain differences in schooling and earnings profiles and consequently estimates of mincerian rates of return across countries we find that effective human capital per worker varies substantially across countries cross country differences in total factor productivity tfp are significantly smaller than found in previous studies our model implies that output per worker is highly responsive to changes in tfp and demographic variables jel e23 i25 j24 j31 o47 no question has perhaps attracted as much attention in the economics literature as why are some countries richer than others much of the current work traces back to the classic work of solow 1956 solow s seminal paper suggested that differ ences in the rates at which capital is accumulated could account for differences in output per capita more recently following the work of lucas 1988 human capital disparities were given a central role in the analysis of growth and development however the best recent work on the topic reaches the opposite conclusion klenow and rodriguez clare 1997 hall and jones 1999 parente and prescott 2000 and bils and klenow 2000 argue that most of the cross country differences in output per worker are not driven by differences in human capital or physical capital rather they are due to differences in a residual total factor productivity tfp in this paper we revisit the development problem in line with the earlier view we find that factor accumulation is more important than tfp in accounting for relative incomes across countries the key difference between our work and previous analyses is in the measurement of human capital the standard approach largely inspired by the work of mincer 1974 takes estimates of the rate of return to schooling as building blocks to directly measure a country s stock of human capital implicitly this method assumes that the marginal contribution to output of one additional year

the sale of alcohol in denmark recent developments and dependencies on prices taxes how do prices affect the choice of types of alcohol in denmark we study the danish sale of alcoholic beverages in a time series framework first we look at annual data from 1980 investigating the hypothesis of a fairly stable level of sales we conclude stationarity of sales and we also find that the income elasticity of total sales has been zero second we analyse the composition of the alcohol sale between beer wine and spirits in a multivariate model conditional on the development in prices for this analysis we use johansen cointegration techniques again we test that income can be omitted from the model and we use the model to derive the effects on the composition of alcohol sales of three different sets of changes in the alcohol taxation

schooling and economic growth a king rebelo experiment with human capital abstract education is added to the standard neoclassical growth model by calibrating a human capital technology to the empirical evidence on schooling simulation experiments patterned after king and rebelo 1993 american economic review 83 908 931 are conducted when agents act as if they are infinitely lived interest rates are too high and the rise in school spending is too weak over the transitional growth path when schooling is inefficiently low due to binding intergenerational credit constraints interest rates deviate only moderately from the steady state level and the historical rise in school spending is fully explained

the cost of public schooling in new york state the role of scale and efficiency in 1978 79 cost differentials between large and small school districts are decomposed into scale and efficiency effects the analysis shows that scale economies enjoyed by large districts can come at the expense of the efficient production of educational outcomes attention is focused on the possible loss of efficiency associated with efforts to increase size by closing schools and consolidating school districts empirical evidence from new york state is presented which shows that lower levels of efficiency exist in large compared to small school districts implications for policy are explored

minding the gap between schools and universities abstract during the 2000s decade governments in south america reallocated per student public expenditures from tertiary to basic education potentially alleviating the economic gap between students in public schools and public universities to investigate the welfare and macroeconomic effects of such types of policies we build and calibrate a general equilibrium model using brazilian data from the beginning of the 2000s we find that the optimal utilitarian policy allocates per student public expenditures equally across education stages benefits almost the entirety of households delivers significant welfare gains to the poorest families and cuts back income inequality we also use our framework to investigate economic differences between brazil and the united states and find that differences in the supply of vacancies in public universities is the education policy aspect that alone has the highest explanatory power over aggregate earnings and college attendance differences between the two countries

rationally addicted to drinking and smoking when modelling demand for addictive consumption goods the most widely used framework is the rational addiction model proposed by becker and murphy this paper extends the rational addiction model to include two addictive consumption goods alcohol and cigarettes and using aggregate annual time series on sales volumes for the period 1955 1999 estimates the aggregate demand for these goods in sweden where ols estimates are compared to gmm estimates allowing for possible endogeneity of lagged and lead consumption first the demand for alcohol and cigarettes are estimated as separate equations and it is found that alcohol demand is quite well described by the rational addiction model while the same is not true for cigarettes the own price elasticities are negative and alcohol demand is more elastic than cigarette demand the cross price elasticities are also negative showing that alcohol and cigarettes are complements since consumption of alcohol and cigarettes are probably simultaneous decisions th

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

baby steps the gender division of childcare during the covid 19 pandemic the nature and scale of the shocks to the demand for and the supply of home childcare during the covid 19 pandemic provide a unique opportunity to increase our understanding of the division of home labour and the determinants of specialization within the household we collected real time data on daily lives to document the impact of measures to control covid 19 on uk families with children under the age of 12 we document that these families have been doing the equivalent of a working week in childcare with mothers bearing most of the burden the additional hours of childcare done by women are less sensitive to their employment than they are for men leaving many women juggling work and a lot more childcare with likely adverse effects on their mental health and future careers however some households those in which men have not been working have taken greater steps towards an equal allocation offering the prospect of sharing the burden of childcare more equally in the future

longevity and lifetime labor supply evidence and implications conventional wisdom suggests that increased life expectancy had a key role in causing a rise in investment in human capital i incorporate the retirement decision into a version of ben porath s 1967 model and find that a necessary condition for this causal relationship to hold is that increased life expectancy will also increase lifetime labor supply i then show that this condition does not hold for american men born between 1840 and 1970 and for the american population born between 1890 and 1970 the data suggest similar patterns in western europe i end by discussing the implications of my findings for the debate on the fundamental causes of long run growth

transfers to households with children and child development in this paper we utilize a model of household investments in the development of children to explore the impact of various transfer policies on the distribution of child outcomes we develop a cost criterion that can be used to compare the cost effectiveness of unrestricted restricted and conditional cash transfer systems and find that an optimally chosen conditional cash transfer program is the most cost efficient way to attain any given gain in average child quality we explore several design elements for the conditional cash transfer system and discuss the role of production function uncertainty and measurement error

the evolution of education a macroeconomic analysis between 1940 and 2000 there was a substantial increase in educational attainment in the united states what caused this trend we develop a model of human capital accumulation that features a nondegenerate distribution of educational attainment in the population we use this framework to assess the quantitative contribution of technological progress and changes in life expectancy in explaining the evolution of educational attainment the model implies an increase in average years of schooling of 24 which is the increase observed in the data we find that technological variables and in particular skill biased technical change represent the most important factors in accounting for the increase in educational attainment the strong response of schooling to changes in income is informative about the potential role of educational policy and the impact of other trends affecting lifetime income

education quality and development accounting this paper measures the role of quality adjusted years of schooling in accounting for cross country output per worker differences while data on years of schooling are readily available data on education quality are not i use the returns to schooling of foreign educated immigrants in the u s to measure the education quality of their birth country immigrants from developed countries earn higher returns than do immigrants from developing countries i show how to incorporate this measure of education quality into an otherwise standard development accounting exercise the main result is that cross country differences in education quality are roughly as important as cross country differences in years of schooling in accounting for output per worker differences raising the total contribution of education from 10 to 20 of output per worker differences copyright 2012 oxford university press

the production characteristics of local public education a multiple product and input analysis since the seminal work of baumol panzer and willig 1 economists have become increasingly interested in incorporating the multifaceted nature of real world production functions into their empirical analyses multiproducts multiple inputs and the relaxation of the long run equilibrium condition are some prime examples of major innovations in production modeling an excellent example of this innovative literature is the study by cowing and holtmann 7 that focuses on the short run production characteristics associated with the hospital services industry specifically cowing and holtmann find evidence contrary to long run equilibrium and that economies of scope are at least as important as economies of scale in the production of hospital services moreover several empirical studies relating to the production characteristics of other goods and services such as higher education 6 crime prevention 9 electric utilities 15 and airlines 5 have provided ample evidence that these pertinent factors matter from both an econometric and a policy perspective the literature concerning the production characteristics of primary and secondary education however has lagged behind in terms of incorporating more realism into the analysis typically studies concerned with primary and secondary education production 2 3 13 14 maintain that schools operate at a long run equilibrium position and produce a single output with a single input i e teachers thus assuming away factors which these other industry studies have found to be significant in fact jimenez 12 is the only study to date on local primary and secondary education production that is based on less restrictive assumptions several limitations are associated with his research however each of these limitations reduce the generality of his findings concerning the production characteristics of primary and secondary education first jimenez employs a small sample to obtain estimates of various production characteristics bringing into question the overall