state and time contingent switches of exchange rate regime abstract recent papers have analysed the effects of britain s return to gold in 1925 one line of argument has been that the return to gold was a state contingent regime switch an alternative view is that it was time contingent this paper shows that these approaches are not mutually exclusive the solution for the exchange rate is derived in a model where a switch to a fixed rate takes place either when a state contingent trigger is reached or at a fixed time whichever is the sooner state contingent and time contingent elements are thus combined within the same model

private values of risk tradeoffs at superfund sites housing market evidence on learning about risk this paper incorporates a bayesian learning model into a hedonic framework to estimate the value that residents place on avoiding cancer risks from hazardous waste sites we show that residents are

interpreting net fiscal incidence calculations this paper evaluates calculations of net fiscal incidence using an applied general equilibrium model of australia into which public goods are incorporated results indicate that it is inappropriate to regard the redistributive impacts of government policies as a zero sum game for large reductions in public goods provision and taxes the dominant effect is the foregone consumer surplus from suboptimal public goods provision in addition the redistributive pattern of small charges are quite different from large charges marginal and average net fiscal incidence thus need to be clearly separated a point not emphasized in existing literature copyright 1987 by mit press

ethical social index numbers and the measure ment of effective tax benefit progressivity in this paper we propose a general method for constructing measures both relative and absolute of effective tax benefit progressivity from social welfare functions relative measures compare the after tax or benefit distribution of income with the distribution that would result if the burden were imposed proportionally absolute measures use the equal taxation of individuals as a benchmark these indices are related to relative and absolute indices of inequality our relative indices are generalizations of the gini index based musgrave thin measure of effective progressivity we compare our general indices to the proposals of kakwani khetan and poddar and suits

a quality adjusted price index for personal computers this study estimates quality adjusted price indexes for personal computers three separate hedonic models are estimated using data from 1 841 personal computers over the period 1984 1991 in addition to the traditional linear model a nonlinear model is developed and estimated the nonlinear model is parsimonious in parameters allows time varying attribute prices and can be estimated using a pooled data set the results indicate that nominal quality adjusted prices of mail order firms declined at an average annual rate of 24 62 quality adjusted prices of major manufacturers declined at a slower rate

identification of strategies to improve goat marketing in the lowlands of ethiopia a hedonic price analysis abstractthis article aims at identifying factors that determine market prices of goats and analyse potential mechanisms by which smallholder goat producers could maximize their benefits data on 35

monte carlo benchmarks for discrete response valuation methods this paper argues that the belief that discrete contingent valuation cv questions yield substantially larger estimates of the mean and the median willingness to pay wtp for nonmarket resources in comparison to open ended cv questions is unfounded monte carlo experiments estimate the factors influencing the performance of wtp estimates based on discrete response models most of the error arises from the specification errors common to the empirical models in the literature these experiments suggest models where wtp is dominated by nonuse or passive use values are likely to have smaller errors than where large use values influence these decisions

from theory to practice canadian economists contributions to public finance we survey canadian economists contributions to the field of public finance from the mid 1980s to 2016 we highlight the development and extension of the models and tools of public economics and the empirical studies that have deepened our understanding of the efficiency and distributional issues over a wide range of public finance issues we also highlight contributions to the development of policies through commissioned reports and the important role that canadian institutions the canadian tax foundation the think tanks and the federal and provincial departments of finance have played in shaping tax and fiscal policies de la theorie a la pratique contributions des economistes canadiens a la finance publique on examine les contributions des economistes canadiens au domaine de la finance publique du milieu des annees 1980 a 2016 on souligne le developpement et l extension des modeles et des outils d economie publique et les etudes empiriques qui ont aide a approfondir notre comprehension des enjeux d efficacite et de distribution dans un vaste eventail de questions de finance publique on souligne aussi les contributions des rapports commandites au developpement de politiques publiques ainsi que le role important d institutions canadiennes l association canadienne d etudes fiscales les groupes d experts ainsi que les ministeres des finances du gouvernement federal et des gouvernements provinciaux dans le design des politiques fiscales

target zones and exchange rate dynamics this paper develops a simple model of exchange rate behavior under a target zone regime it shows that the expectation that monetary policy will be adjusted to limit exchange rate variation affects exchange rate behavior even when the exchange rate lies inside the zone and is thus not being defended actively somewhat surprisingly the analysis of target zones turns out to have a strong formal similarity to problems in option pricing and investment under uncertainty

the significance of quality differences for the united states and canada wheat trade some insights are provided as to why the united states the fifth largest wheat producer in the world imports a significant amount of wheat from canada after reviewing intra industry trade theory and the relevant empirical constructs an implicit price function of the import demand for wheat focusing on the physical and intrinsic characteristics of wheat is estimated the results are revealing there is a premium for the protein content and the percentage of heat damaged kernels in wheat clearly the fact that wheat is a differentiated commodity possessing a mix of physical and intrinsic characteristics together with price considerations helps to explain why the import of canadian wheat by the united states exists and why this became a significant issue in 1993

is what you see what you get the value of natural landscape views views of natural areas and green space may have value quite apart from access to those lands using 25 years of home sales data from st louis county missouri and modern geographic information system tools to measure views we estimate a hedonic property fixed effects model that captures the effects of changing land cover on house sale prices unlike previous studies our approach minimizes bias from omitted variables and uniquely captures changes over time we find that forest views negatively affect home prices whereas farmland views have positive effects changes in relative scarcity of these land types over time may explain the findings

divergence in alternative hicksian welfare measures the case of revealed preference for public amenities this paper investigates the divergence between the two hicksian welfare measures of non traded amenity improvement associated with housing first the hicksian surplus measures for amenity changes are analytically developed based on explicit specification of utility structures a hedonic two stage approach is then applied to empirically show that for quantity changes in contrast to hypothetical markets divergence in real market is small the paper also analytically develops expressions for the income and substitution effects and empirically shows that for a given income effect the greater the substitution effect the smaller the divergence between the two measures copyright 2002 john wiley sons ltd

paying for quietness the impact of noise on geneva rents using the hedonic approach this paper analyses housing market data to infer the impact of noise on rents in geneva switzerland using three different databases including a geographical information system gis structural accessibility and environmental variables were obtained for a large proportion of apartments rented in geneva the paper is thus in line with the new generation hedonic models which exploit the vast potential of gis to obtain large databases including detailed characteristics of the apartments in addition different and original measures of noise were used in order to assess possible differences of the noise impact on rents while existing studies typically refer to a single noise index this paper assesses the impacts of noise related to all sources but also to airport noise only while existing studies usually refer to road or aircraft noise the results can be summarised as follows first it is shown that the impact of all sources of noise on rents at the level of the whole ca

promise scholarship programs as place making policy evidence from school enrollment and housing prices abstract place based promise scholarship programs which guarantee financial aid for qualifying graduates of a school district have proliferated in recent years using data from multiple sites we compare the evolution of school enrollment and residential real estate prices around program announcement dates within promise eligible and surrounding areas while our estimates indicate that enrollment increased following promise announcements merit based programs generated relative increases in white enrollment housing prices respond strongly in neighborhoods with better primary schools and in the upper half of the housing price distribution we conclude that these programs have important and under studied distributional considerations

market power in a gis based hedonic price model of local farmland markets buyers of farmland are usually interested in parcels for sale that are close to their own farms with a limited number of parcels for sale this may lead to market power in local farmland markets the objective of this paper is to investigate whether market power affects farmland prices hedonic price models are adapted to allow for local market power of either sellers or buyers a distinction is made between rural and urban farmland markets the results provide evidence of market power effects in rural farmland markets however for farmland in urban areas market prices are dominated by speculation effects

tax incidence analysis of developing countries an alternative view misleading conclusions can be drawn from studies of tax incidence that ignore the special features of developing countries incorporating these features can sometimes reverse the incidence pattern of taxes relative to what is often taken to be conventional wisdom even where patterns are not reversed quantitative differences can be substantial the newer views of incidence have implications for tax restructuring options being considered in several developing countries the proposed restructuring may appear to lead only to a more regressive tax system because of improper incidence analysis copyright 1991 by oxford university press

the value of water as an urban club good a matching approach to community provided lakes abstract community provided urban lakes located in arid environments provide significant amenities to residents but require large quantities of water to maintain lake levels we use matching techniques to recover the average capitalized value of lakes above the costs of maintenance by comparing transactions in lake communities to observationally similar transactions in surrounding communities we differentiate between adjacent and non adjacent houses to recover heterogeneous treatment effects and allow estimates to vary across communities importantly we consider the role of imperfect matching on spatially and temporally varying unobservable variables in our choice of estimator and the appropriate set of potential control properties our results suggest that the capitalized value of lakes is heterogeneous with a mean estimate of 6500 an acre foot our results provide estimates of the changes in water prices that would make this form of development unprofitable illustrating the linkage between water pricing policy and the water intensity of development

the redistribution of income in canada this original study challenges the widely held belief that government policies to redistribute income have made canada a more egalitarian state the author bases his conclusions on extensive documentation of the real effect of changes in taxes transfers and government expenditures

quality adjusted price and quantity indices for pesticides quality adjusted price indices are calculated for pesticides used on major crops in u s agriculture for 1967 92 using hedonic methods pesticide potency hazardous characteristics and persistence in the environment are used as quality characteristics separate hedonic functions are estimated for pesticides by end use crop and major pesticide class price indices are aggregated using chained tornqvist indices adjusted quantity indices are computed using pesticide expenditures the adjusted price index rose steadily reaching in 1992 around 2 5 times the level of 1968 pesticide use at constant quality peaked in 1981 at a level substantially higher than the peak reached by the unadjusted index

innovation and price the case of digital cameras this study examines a hedonic regression model of digital camera prices using data collected from an internet price comparison service we find that a small number of product characteristics explains most of the variation in camera prices in addition the model demonstrates substantial downward pressure on camera prices during the time period considered we also examine technological innovation shocks to determine their impact on product prices we find that the corresponding price reaction exhibits gradual adjustment over time providing evidence of some degree of anticipation of the innovation as well as a post innovation price shock this study also demonstrates the power of web based shopping services as a new and novel source of data for econometric analysis

the incidence of government expenditure and redistribution in the united kingdom not choose to produce or will not produce in a socially efficient manner the form of taxation adopted by a government may be influenced by a number of factors but equity considerations are often important thus tax systems frequently aim to alter the distribution of post tax incomes or some other measure of individuals command over goods and services from that of pre tax incomes of course redistribution brought about by taxation can alter individuals command only over marketed goods and services however the effects of the fiscal system as a whole tax and government expenditure on redistribution may be very different from redistribution via taxation alone unfortunately although there have been many attempts to measure the distributional impact of specific taxes or tax systems the theoretical and empirical difficulties experienced when trying to measure the redistributional effect of publicly provided goods and services places severe limitations on attempts to measure fiscal redistribution recent british and us studies of fiscal incidence have tended to allocate the benefits of government expenditure across income groups in line with their estimated consumption of government services government services that cannot be allocated specifically have usually been allocated using various

heteroscedastic hedonic price model for cattle in the rural markets of central ethiopia this study employs a heteroscedastic hedonic price model to examine the factors that influence cattle prices in the rural markets of central ethiopia the empirical results show that season market location class of cattle body size and age are very important determinants of the cattle price the relative weight of the phenotypic characteristics of the animals is among the highest of all the factors considered these preferences at the farmers and farmer traders levels are the ones that matter most in shaping the diversity of animals kept at farm level and the diversity of cattle genetic resources is quite essential for generating or identifying the best suited breeds of cattle given the livelihood objectives of the target community

heterogeneous preferences and new innovation cycles in mature industries the amateur camera industry 1955 1974 this paper examines the amateur camera industry between 1955 and 1974 the case raises important issues for our understanding of the product lifecycle first an industry can experience more than one round of radical product and process innovation in its history second there is not a strict sequence of product innovation followed by process innovation third the existence of a dominant design depends on there being a relatively homogeneous set of consumers heterogeneous consumer preferences support different camera designs in two distinct market niches in the amateur camera industry fourth new rounds of entry and exit and new industry shake outs can occur with new innovative entrants displacing old firms fifth when the new firms are from developing countries a shift in global production occurs the success of new japanese entrants in this period lay in their being more successful innovators not in their exploiting wage cost advantages

the market valuation of the fgis grain quality characteristics the issue addressed in this paper is whether the grain quality factors used by the federal grain inspection service in determining the quality grades of wheat exported by the united states including test weight dockage moisture content percentage of foreign material percentage of shrunken and broken kernels and protein content are characteristics that influence the price of wheat for export using shiplot data on the transactions price for hard red winter wheat hard red spring wheat and soft white wheat and the associated quality characteristics covering the period january 1990 to october 1991 and exported to 63 countires the results suggest that only the test weight and the protein content are characteristics consistently valued by the market

hedonic regressions mis specification and neural networks there is an emerging literature in the field of hedonic regressions which successfully applies flexible functional forms in contrast numerous authors report hedonic regressions with relatively simple functions often with little or no attempt to consider interaction terms and higher level powers such simple functions perform relatively well in spite of good a priori grounds for quite complex interaction effects indeed the studies are characterised by a general indifference to testing these more flexible models even when degrees of freedom permit using detailed scanner data hedonic functions for the uk tv market are estimated and tested for interaction effects for a case study of the market higher level interaction effects are tested for and compare the results with those from a neural network with its property of universal approximation the use of neural networks is particularly novel in this context and some general findings on their suitability emerge

on the choice of funtional form for hedonic price functions this study examines how errors in measuring marginal attribute pric es vary with the form of the hedonic price function in simulations consumers with known utility functions bid for houses with given attributes various forms of the hedonic function are estimated using equilibrium housing prices errors in estimating marginal attribute prices are calculated by comparing each consumer s equilibrium marginal bid vector with the gradient of the hedonic function when all attributes are observed linear and quadratic box cox forms produce lowest mean percentage errors however when some attributes are unobserved or are replaced by proxies linear and linear box cox functions perform best copyright 1988 by mit press

emergence of entrepreneurs following exogenous technological change this paper explains how after an exogenous technological change occurs entrepreneurs displace incumbents who were ex ante capable of exploiting any innovations that resulted from the change the model initially considers classical economic assumptions in the context of process innovations and then its robustness to uncertainty bounded rationality firm asymmetry and product innovations are discussed the model is preliminarily tested against industry trends using both results from an analysis of the information technology sector and from the literature the paper does not suffer from the inconsistency of explaining how capable incumbents are displaced by resorting to characterizations of incumbents as incapable due to some inefficiency the paper models incumbents as efficient yet rationally choosing in some instances to be displaced copyright 1999 john wiley sons ltd

which hedonic models can we trust to recover the marginal willingness to pay for environmental amenities abstract the hedonic property value model is among our foremost tools for evaluating the economic consequences of policies that target the supply of local public goods environmental services and urban amenities we design a theoretically consistent and empirically realistic monte carlo study of whether omitted variables seriously undermine the method s ability to accurately identify economic values our results suggest that large gains in accuracy can be realized by moving from the standard linear specifications for the price function to a more flexible framework that uses a combination of spatial fixed effects quasi experimental identification and temporal controls for housing market adjustment

volatility regime switching in european exchange rates prior to monetary unification abstract several theoretical models suggest that the mere announcement of entering a currency union in the future triggers instantaneous changes in exchange rate volatility first this paper develops a markov switching framework by which in fact volatility regime switching in foreign exchange rates can be detected for all currencies in the run up to the european monetary union emu second the paper attributes the currency specific volatility regime switches to decisive economic institutional and political factors prior to emu all in all the empirical results suggest that for future emu accession countries volatility regime switching models provide a useful tool for a broad range of financial applications e g for the pricing of currency options or for the construction of emu probability calculators

chained exact and superlative hedonic price changes estimates from microdata scanner data are used to calculate chained exact and superlative hedonic price indexes for television sets the data source is available for a wide range of goods the application providing an example of how this method can be more widely applied the indexes correspond to constant utility hedonic cost of living indexes the approach improves on the existing direct method which takes its estimates directly from the coefficients on time dummies in a hedonic regression it also improves on the matched model method used by statistical agencies the differences between actual price changes and exact hedonic quality adjusted price changes are found to be substantial base period and current period weighted exact hedonic indexes are similar thus providing good approximations to a superlative index estimates from the direct dummy variable approach were compared to the superlative indexes the disparities between the results argue for caution in the use of the direct dummy variable approach to estimating

effective costs and chemical use in united states agricultural production using the environment as a free input a cost function based production model is used to represent patterns of input use and output production in u s agriculture and the implied costs of induced reductions in risk from agricultural chemicals bad outputs we estimate and evaluate shadow values for these harmful outputs and the implied input and output specific substitution patterns with a focus on the impacts on pesticide demand and its quality and quantity components using state level data we find these measures to be statistically significant vary substantively by region and imply increased demand for effective pesticides associated with improvements in quality from embodied technology copyright 2002 oxford university press

exchange rate dynamics under state contingent stochastic process switching this paper offers a closed form solution of a process switching problem i e switching the exchange rate regime from free floating to a completely fixed one an example of such regime change is the adoption of the euro in contrast to previous studies on the subject this paper analyzes a specific case when foreign exchange market participants consider both the euro locking rate and locking date as uncertain preceding the locking the exchange rate is determined by three factors fundamental market expectations for the euro locking rate and date the model is used to examine the conditions under which the exchange rate volatility is mitigated by the prospect of locking

estimating the demand for the characteristics of housing a hstract estimates of the demand for the characteristics contained in a differentiated product such as housing can be based on hedonic regressions however previous studies have not dealt with several potential problems in such estimation a more appropriate framework for the estimation is provided in this paper also data from a number of cities are used to eliminate the identification problem and the endogeneity of the marginal prices derived from non linear hedonic equations is considered in the estimation the results on own and cross price elasticities expenditure elasticities and the effects of socio economic vafiables accord well with expectations

the demand for military expenditures an international comparison earlier studies have explained inter country variations in the share of gnp devoted to military expenditures by international spillovers and by differences in the threat of attack related to relative incomes in this paper we use the theory of public choice to explain these differences we attempt to measure the importance of both international spillovers and relative incomes along with two other factors the tax price elasticity of demand and economies of scale in the consumption of security we find that international spillovers are significant and positive that the income elasticity of demand is greater than unity that the tax price elasticity of demand explains part of observed inter country differences and that there are considerable economies of scale in the consumption of military spending finally between 1960 and 1975 there was apparently a substantial increase in the value which each country derived from a dollar of military spending by its allies this phenomenon which seems related to the increased importance of deterrent weapons has tended to induce individual alliance members to reduce the share of their national income devoted to defense

speculative anticipations of sterling s return to gold was keynes wrong the view held by keynes that there was a speculative appreciation of sterling prior to its return to the gold standard has been challenged by gregor smith and todd smith who argue that expectations of return must have weakened the currency the authors demonstrate that the positive but decreasing trend displayed in the exchange rate data is consistent with a pattern of autoregressive convergence in fundamentals and that this continues to be true when there is a positive speculative element based on expectations of an early return hence the key features of the data seem compatible with keynes s views copyright 1994 by royal economic society

bias and inefficiency in quality adjusted hedonic regression analysis numerous quality adjusted hedonic price trend studies based on computer prices have provided support to widely held suspicions that officially released price indices are not accurately measuring the price declines occurring in many information technology it products if provable then general price inflation is being overestimated and consequently real gdp is being underestimated existing evidence however is inconclusive first empirical findings for it products other than computers are essentially non existent and secondly estimation bias is inherent in the hedonic regression technique most commonly employed this article presents an unbiased method together with an estimated quality adjusted price trend for laser printers 1993 2004

an embarrassment of riches confronting omitted variable bias and multiscale capitalization in hedonic price models abstract many researchers have addressed concerns of omitted variable bias in hedonic price models through the use of spatial fixed effects we argue that this approach does not consider the biases introduced by effects that overlap the zone of capitalization for nonmarket goods we show this bias can dominate the usual omitted variable bias using data on developer provided open space we control for multiscale capitalization and omitted variables simultaneously by extending the hausman taylor estimator where the panel component of the estimator is defined over repeated transactions within neighborhoods rather than the traditional definition following a unique cross sectional unit through time

faster smaller cheaper an hedonic price analysis of pdas we compute quality adjusted price indexes for personal digital assistants pdas for the period 1999 to 2004 hedonic regressions indicate that prices are related to processor generation and clock speed memory capacity screen size and quality and the presence of a digital camera or wireless capability a particularly salient feature of pdas is portability where we find i purchasers value the energy density of the battery technology e g lithium ion rather than the battery life in hours and ii the physical characteristics of the pda e g weight volume are nonlinearly related to price suggesting that valuation of the physical form of pdas does not bear a simple linear relationship to characteristics either in absolute terms smaller is better or vs an ergonomic sweet spot rather portability characteristics are correlated with other desirable attributes making the relationship between price and portability difficult to disentangle however hedonic price indexes are robust across dif

taste or reputation what drives market prices in the wine industry estimation of a hedonic model for italian premium wines the aim of this article is to provide new evidence on the factors affecting wine prices on both methodological and factual grounds on the methodological ground this study is the first to apply a general box cox transformation within the context of hedonic models which exploit all the variables objective and sensorial characteristics reputation pointed out by previous literature as relevant in driving market prices on the factual ground the article fills the lack of empirical evidence on the issue for italy one of the leading wine producers by using a large data set on two premium quality wines barolo and barbaresco covering the 1995 1998 vintages our results support the evidence obtained using data from other countries showing that sensorial traits the reputation of wines and producers as well as objective variables are all important factors influencing the consumers willingness to pay more importantly by resorting to a nonnested statistical test vuong 1989 we compare two alternative

exchange rate dynamics in anticipation of time contingent regime switching modelling the effects of a possible delay abstract the procedure of fixing a currently floating exchange rate at a given and publicly announced future date has a broad range of applications based on a continuous time monetary exchange rate model with flexible prices this paper analyzes exchange rate dynamics during the transition from floating to fixed rates in a situation in which market participants are uncertain about adherence to the fixing date and in which they take account of a possible delay in the regime switch the closed form solutions derived here allow us to quantify announcement effects as well as effects on the exchange rate variance caused by news that significantly changes the market s assessment of uncertainty

quality adjusted price indexes for portable computers constructing an accurate price index requires controlling for changes in quality the potential for bias is especially problemaic for rapidly changing goods such as computers this study extends previous research on quality adjusted or hedonic price indexes for computers by investigating price and quality changes in portable models in particular recent research by nelson et al 1994 and berndt et al 1995 on desktop and portable computers is extended after adjusting for quality changes price indexes in this tudy exhibit average declines of 26 to 33 per year the magnitude of quality adjusted price changes is consistent with these auhors and with the extensive line of research on quality adjusted price indexes for computers of various types the results emphasize the extent of potential bias in estimating price level changes if technological advancement is ignored significant potential for bias implies the need to account properly for changes in quality in consructing indexes for both individual

the practice of econometrics classic and contemporary provides hands on experience of econometrics with estimation and inference each chapter begins with a discussion of economic theory underlying the application

a general index of technical change this paper outlines a procedure for estimating a general index of technical change within the context of a quite general production technology specifically when panel data are available for firms in an industry time specific dummies can be combined in a nonlinear estimation procedure to yield a general index of technical change that may be both nonneutral and scale augmenting this approach offers numerous advantages over the traditional time trend representation of technical change for example the general index can serve as the basis for analysis of the determinants of technical change results for a sample of 30 electric utilities over the period 1951 78 show that the productivity decline of the 1970s can be attributed primarily to sulphur oxide restrictions and secularly declining capacity utilization due to rapidly increasing peak load demands

the choice of functional forms for hedonic price equations comment abstract rosen 13 freeman 4 halvorsen and pollakowski 6 and others have stressed that economic theory does not suggest an appropriate functional form for hedonic price functions 1 it consequently is reasonable to try several functional forms and utilize the multiple regression equation with the best performance in this spirit halvorsen and pollakowski 6 recommend using the box cox flexible functional form for hedonic analysis and measuring best performance with a goodness of fit test the box cox methodology has also been adapted in hedonic studies by goodman 5 linneman 10 blomquist and worley 1 and eberts and gronberg 3 2 the box cox is particularly suited for testing functional forms because many familiar forms such as semilog log linear and translog are subsets of the flexible box cox permitting nested hypothesis testing in this note we illustrate that the formal hypothesis testing advantage of the box cox functional form is purchased at the expense of other important goals the goal of most hedonic studies is to estimate the prices of the characteristics to measure the response to changes in the prices and or to predict future expenditures using a best fit criterion to choose functional forms does not necessarily lead to more accurate estimates of characteristic prices in fact the large number of coefficients estimated with the box cox functional form reduces the accuracy of any single coefficient which could lead to poorer estimates of specific prices second because any negative number raised to a noninteger real power is imaginary the traditional box cox functional form is not suited to any data set containing negative numbers third the box cox functional form may be inappropriate for prediction since the mean predicted value of the untransformed dependent variable need not equal the mean of the sample upon which it is estimated the predicted untransformed variable housing value will be biased the predicted untransformed dependent variable may also be imaginary fourth the nonlinear transformation results in complex estimates of slopes and elasticities which are often too cumbersome to use properly we discuss each of these drawbacks and quantify them when possible in the remainder of this note

sampling frequency and the comparison between matched model and hedonic regression price indexes matched model price indexes generally overestimate quality adjusted prices because the price performance ratio of models sold in consecutive periods is worse than that of new models this unrepresentativeness of the sample potentially might be reduced by obtaining higher frequency data thus increasing the fraction of models that are matched we propose a set of comformable indexes to test this hypothesis using computer prices from the buy direct press we find contrary to initial expectations that the bias in the matched model price index increases with the sampling frequency the bias is reduced if the high frequency index is constructed using only long lived models these results suggest that models that last for only a brief time are models for which the price performance ratio has deteriorated very rapidly thus increasing the sampling frequency without purging short lived models actually increases the selection bias

some calculations of lifetime tax incidence this paper reports a set of lifetime tax incidence calculations using a life cycle simulation model for canada due to davies 1979a 1982 a repeatedly stated qualification to annual calculations in the empirical tax incidence literature is that it would be more satisfactory to make calculations on a lifetime basis even though it is acknowledged that lifetime tax incidence could well differ from annual it is widely believed that data and other difficulties make such calculations next to impossible indeed the widespread acceptance of the data problems of lifetime calculations seems also to have inhibited speculation about how lifetime tax incidence might differ from annual as a result redistributive tax policy judgments continue to be based on annual incidence calculations in spite of the reservations many have about their usefulness our paper is intended to reorient discussion towards lifetime tax incidence by providing some initial null hypotheses about the shape of lifetime tax profiles our main finding is that under the standard competitive assumptions common in the incidence literature lifetime and annual incidence calculations both produce mild progression in tax rates across household deciles ignoring the bottom decile in the annual calculation while the income tax is less progressive in lifetime than in annual calculations other taxes are for the most part less regressive also lifetime incidence calculations are much more robust to alternative shifting assumptions than annual calculations in the lifetime context key distributions such as earnings transfer payments and consumption are less heavily concentrated in particular percentiles of the population than is true in annual data as a result changing the allocative series for any particular tax does not have the large effect on incidence results found in annual calculations each component of the tax system is allocated to households grouped by lifetime income using particular distributive series following a procedure similar to that employed in annual incidence calculations for example richard musgrave et al 1974 joseph pechman and benjamin okner 1974 edgar browning and william johnson 1979 w irwin gillespie 1980 in the process we are able to compare lifetime and annual incidence calculations using the same data set in both lifetime and annual calculations we allocate five groups of taxes among households using distributive series which come partly from the 1971 statistics canada survey of consumer finances scf and partly from our life cycle simulation model the scf data are used to construct synthetic longitudinal lifetime profiles of earnings and transfer payments for a sample of 500 households the latter are assigned inheritances by simulating patterns of mortality and bequest these data are then used in the life cycle model to generate lifetime consumption profiles and bequests the earnings transfer and inheritance data plus the model output provide the distributive series on which alternative incidence calculations are based while the incidence calculations presented in this paper use canadian data results would likely be similar for the united states