325,151 research outputs found

    Comparing shapes of engel curves

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    We measure how different the shapes of Engel curves are across 59 commodity groups. The same analysis is carried out for their derivatives and variances. While Engel curves possess a relatively homogeneous shape, significantly more heterogeneity is present in derivatives and when particular sub-classes of income are considered.Consumption, Kernel smoothing, Rank correlation, Curve shape

    DEMAND SYSTEM CHOICE BASED ON TESTING THE ENGEL CURVE SPECIFICATION

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    It is common to use a demand systems approach in estimating the key parameters from household consumption data. In conducting these studies the researcher is faced with selecting a functional form. In turn, each functional form implies a particular shape for the Engel curves. This analysis highlights the importance of testing the shape of Engel curves, especially if the researcher is interested in elasticity estimates well away from the sample mean. Using consumption data for selected households in Italy it is shown that many popular functional forms are rejected by the data.Demand and Price Analysis,

    Albert E. J. Engel Interview, February 28, 1989

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    Albert E. J. Engel recalls his childhood adventures in the Missouri Ozarks, which led to his interest in geology. He acknowledges Arthur Buddington as his greatest influence in the field and describes working with Buddington at Princeton University. Engel discusses working with his geochemist wife, Celeste Engel, throughout his career and notes their love of Montana and their decision to retire in the Bitterroot Valley. Engel details how the development of plate tectonic theory dramatically changed the field of geology. He explains that his transition from petrology to hydrology was informed by desire to study the movement of groundwater in Montana. Engel talks at length about climate change, pollution, and overpopulation. He also credits Thomas M. Power of the University of Montana’s Department of Economics with studying the financial benefits of Montana’s tourist industry in comparison with the environmental and economic costs of mining activities in the state.https://scholarworks.umt.edu/umhistory_interviews/1019/thumbnail.jp

    Compendium juris, das ist, eine gründliche Vorstellung, wie ein jeder mit Recht Klagender durch ein sicheres Recht schleunigst und mit wenigstem Kosten zu dem Seinigen gelangen, und im Gegentheil ein jeder wider Recht Beklagter bey dem Seinigen geschützet werde : samt einem Anhang vom Wittwen und Weysen-Recht

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    bey diesen Recht- und Geld-losen Zeiten hervor gegeben von Burckhardt Engel, Obmann dess Weysen-Gerichts der Statt BärnMit Widmung "Denen hochgeachten, wohl-edel-gebohrnen, gestrengen, vesten, frommen, fürnehmen, fürsichtigen und weisen Herren, Hrn. Schultheissen, Seckelmeisteren, Venneren, und übrigen hochansehenlichen Ehren-Gliederen dess Kleinen und Grossen Raths der Statt Bärn, als meinen gnädigen Herren und Oberen

    Nonparametric IV estimation of shape-invariant Engel curves

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    This paper concerns the identification and estimation of a shape-invariant Engel curve system with endogenous total expenditure. The shape-invariant specification involves a common shift parameter for each demographic group in a pooled system of Engel curves. Our focus is on the identification and estimation of both the nonparametric shape of the Engel curve and the parametric specification of the demographic scaling parameters. We present a new identification condition, closely related to the concept of bounded completeness in statistics. The estimation procedure applies the sieve minimum distance estimation of conditional moment restrictions allowing for endogeneity. We establish a new root mean squared convergence rate for the nonparametric IV regression when the endogenous regressor has unbounded support. Root-n asymptotic normality and semiparametric efficiency of the parametric components are also given under a set of ‘low-level’ sufficient conditions. Monte Carlo simulations shed lights on the choice of smoothing parameters and demonstrate that the sieve IV estimator performs well. An application is made to the estimation of Engel curves using the UK Family Expenditure Survey and shows the importance of adjusting for endogeneity in terms of both the curvature and demographic parameters of systems of Engel curves

    Nonparametric IV estimation of shape-invariant Engel curves

    No full text
    This paper concerns the identification and estimation of a shape-invariant Engel curve system with endogenous total expenditure. The shape-invariant specification involves a common shift parameter for each demographic group in a pooled system of Engel curves. Our focus is on the identification and estimation of both the nonparametric shape of the Engel curve and the parametric specification of the demographic scaling parameters. We present a new identification condition, closely related to the concept of bounded completeness in statistics. The estimation procedure applies the sieve minimum distance estimation of conditional moment restrictions allowing for endogeneity. We establish a new root mean squared convergence rate for the nonparametric IV regression when the endogenous regressor has unbounded support. Root-n asymptotic normality and semiparametric efficiency of the parametric components are also given under a set of Ѭow-level' sufficient conditions. Monte Carlo simulations shed lights on the choice of smoothing parameters and demonstrate that the sieve IV estimator performs well. An application is made to the estimation of Engel curves using the UK Family Expenditure Survey and shows the importance of adjusting for endogeneity in terms of both the curvature and demographic parameters of systems of Engel curves.

    An Engel Curve Analysis of Household Expenditure in Taiwan: 1996-98

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    Seven systems of Engel curves for expenditures on ten commodity groups were estimated using Taiwanese household expenditure data for the period from 1996 through 1998. Results show that the estimated expenditure elasticities are insensitive to the choice of functional forms.Engel curve, Taiwan, Consumer/Household Economics,

    Millicent Engel to Esther Lovejoy

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    Letter from Millicent Engel to Esther Lovejoy, regarding her missionary work in Haiti

    Some curiosites about the Engel method to estimate equivalence scales

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    This paper lends legitimacy to the food share as an indicator of welfare by demonstrating the conditions necessary in empirical work for the Engel method of estimating equivalence scales to provide an exact measure of welfare. In analogy to a money metric of utility, the Engel's food share is shown to be a “quantity metric of utility.”Engel method

    Millicent Engel to Esther\r\nLovejoy

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    Letter to Esther Lovejoy from Millicent Engel, regarding her work in Haiti
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