a new year a new you within individual variation in food purchases abstract we document that within individual variation in food choices is substantial and has potentially important consequences for nutrition and hence well being we develop an approach that allows us to study the determinants of this within individual variation within an economic framework and allow for across individual preference heterogeneity we show that around one fifth of within individual fluctuations in diet quality is explained by standard economic variables prices and budgets along with advertising and weather the residual fluctuations are important and are larger for lower income and younger people and individuals who state they are impulsive we propose a two selves model of food purchase behavior to structurally interpret these empirical patterns we use nonparametric revealed preference techniques to show that this model rationalizes our food purchase data

cost of living inequality during the great recession using detailed barcode level data we construct income group specific price indices for the period of 2004 to 2010 we find substantial differences across income groups arising mainly during the great recession the annual cost of living inflation of the highest quartile has been on average 0 7 percentage points lower than that of the lowest quartile of the income distribution the difference can be explained by the way consumers adjusted their shopping behavior to mitigate the crisis we find that product quality substitution a margin mostly available to richer households is the main mechanism explaining the differences in cost of living inflation our evidence suggests that not accounting for these differences during economic downturns could lead to significant biases in the calculation of inequality and poverty measures jel classifications d12 e31 e32 we thank fernando alvarez erik hurst anil kashyap robert lucas and joseph vavra for their advice and support the paper benefited from comments and suggestions by many others including bong geun choi jorge l garcia jessie handbury sara moreira roberto robatto adriaan ten kate yike wang chen yeh and seminar participants at the university of chicago iea meeting washington university graduate student conference and the midwest macro meeting contacts david argente dargente uchicago edu munseob lee munseob uchicago edu

the effect of health savings accounts on group health insurance coverage this paper presents new empirical evidence on the impact of tax subsidies for health savings accounts hsas on group insurance coverage hsas are tax free health care expenditure savings accounts coupled with high deductible health insurance plans hdhps they together represent new health insurance options the tax advantage of hsas expands the group health insurance market by making health care more affordable using individual level data from the current population survey and exploiting policy variation by state and year from 2004 to 2012 i find that hsa tax subsidies increase small group coverage by a statistically significant 2 5 percentage points although not coverage in larger firms moreover if the tax price of hsa contribution decreases by 10 cents small group insurance coverage increases by almost 2 percentage points i also find that for older workers or less educated workers hsa subsidies are associated with 2 3 percentage point increase in their group insurance coverage

inflation bias after the euro evidence from the uk and italy this article presents an indirect approach to investigate the possible existence of measurement error bias in the harmonized index of consumer prices for the uk and italy our empirical results show that there is no significant evidence of a bias for the uk or for italy prior to the introduction of the euro since january 2002 however the inflation rate in italy has been underestimated by at least 6 percentage points

an overview of experimental u s consumer price indexes the consumer price index cpi has come under intense scrutiny in recent years to help assess potential differences between what the cpi measures and how it is used for various purposes the bureau of labor statistics has created a series of experimental price indexes this article contrasts how the cpi is currently constructed with those experimental indexes specifically experimental cpps have been constructed for two population groups older americans and poor americans in addition experimental geometric mean and superlative indexes have been developed that move the cpi away from its traditional fixed market basket concept

do pharmacists buy bayer informed shoppers and the brand premium we estimate the effect of information and expertise on consumers willingness to pay for national brands in physically homogeneous product categories in a detailed case study of headache remedies we find that more informed or expert consumers are less likely to pay extra to buy national brands with pharmacists choosing them over store brands only 9 percent of the time compared to 26 percent of the time for the average consumer in a similar case study of pantry staples such as salt and sugar we show that chefs devote 12 percentage points less of their purchases to national brands than demographically similar nonchefs we extend our analysis to cover 50 retail health categories and 241 food and drink categories the results suggest that misinformation and related consumer mistakes explain a sizable share of the brand premium for health products and a much smaller share for most food and drink products we tie our estimates together using a stylized model of demand and pricing

how has small group market reform affected employee health insurance coverage abstract in the early 1990s over 40 states passed legislation designed to limit a number of exclusionary practices by insurers in the small group market in order to improve the availability and affordability of health insurance to employees in small firms in this paper we address the effects of reform on the likelihood that workers are offered insurance have employment based coverage or are policyholders of an employment based plan we use differences in differences dd and differences in differences in differences ddd estimators to evaluate the differential effects of alternative reform measures on high and low risk workers we generally find little effect of reform on offer rates and find that in states with the most stringent reform employment based coverage and policyholder rates increased for high risk workers relative to low risk workers our results also indicate that the effects of reform varied significantly by the extent to which states adopted guaranteed issue

measuring pro poor growth when relative prices shift abstract the theoretical literature on pro poor growth as well as its application has not paid sufficient attention to the issue of varying inflation rates across the income distribution ignoring inflation inequality in pro poor growth measurements can however severely bias assessments of pro poor growth hence we suggest simple methods which are able to redress such biases as an empirical illustration we use the case of burkina faso and the growth incidence curve and poverty change decompositions as pro poor growth measurements

expectation formation in a new environment evidence from the german reunification abstract exploiting the german reunification we study how households adapt to a new environment in their macroeconomic forecasting east germans expect higher inflation than west germans decades after reunification these differences are likely driven by the persistent effect of the inflation shock after reunification which contrasted strongly with experiences of zero inflation in the gdr east germans higher inflation expectations are reflected in higher consumer debt and lower bond holdings our findings suggest that large changes in the environment can permanently impede people s ability to form expectations with an important role for the interaction of experiences before and after the event

illustrating adverse selection in health insurance markets with a classroom game this paper describes a classroom game that illustrates the effects of asymmetric information and adverse selection in health insurance markets the first part of this game simulates a market in which buyers can purchase insurance from sellers in some periods government regulation prevents sellers from using information about buyer type to determine premiums the results demonstrate the classic prediction that asymmetric information will result in adverse selection here low risk buyers will forego the purchase of insurance at a measurable loss of potential earnings in the second part of the game sellers and buyers can trade two different types of health insurance policies one moderate and another generous under government mandated community rating and limits on premium increases no buyers will purchase the generous plan questions are provided to stimulate discussion of the causes and consequences of adverse selection for consumers and insurers and possible solutions for employer and government sponsored programs

u s tax policy and health insurance demand can a regressive policy improve welfare abstract the u s tax policy on health insurance is regressive because it subsidizes only those offered group insurance through their employers who also tend to have a relatively high income moreover the subsidy takes the form of deductions from the progressive income tax system giving high income earners a larger subsidy to understand the effect of the policy we construct a dynamic general equilibrium model with heterogenous agents and an endogenous demand for health insurance a complete removal of the subsidy may lead to a partial collapse of the group insurance market reduce the insurance coverage and deteriorate welfare there is however room for improving the coverage and welfare by extending a refundable credit to the individual insurance market

group cost of living indexes when households have different consumption patterns whose cost of living should an actual price index represent this issue was first raised by j l nicholson and s j prais in the 1950 s both made essentially the same point official price indexes give each household s consumption pattern an implicit weight proportional to its total expenditures see nicholson p 540 prais calls such an index plutocratic and both nicholson and prais suggest an alternative democratic price index which gives all households equal weight a group cost of living index is an index that measures the impact of price changes on the welfare of a group or population of households to define such an index requires an explicit or implicit concept of the welfare of a group and hence requires interpersonal comparison and distributional judgments since group indexes such as the consumer price index play an important role in our perception of inflation and the formation of macro economic policy and are used to escalate wages and social security benefits they have significant effects on government decisions and economic welfare despite their intellectual interest and practical importance however until recently they have been virtually ignored by index number theorists the theory of the cost of living index cli provides a generally accepted framework for measuring the impact of price changes on the welfare of a particular household this paper extends the cli concept to groups and discusses which questions require group indexes and which do not i begin by introducing some notation and terminology in the context of household clis a household s cli is the ratio of the expenditures required to attain a particular base indifference curve in two price situations suppose there are n goods and s households and denote the preference ordering of the rth household by r r the base indifference curve can be identified by a goods collection xro which lies on it the expenditure function er p xr rr shows the minimum expenditure required to attain the base indifference curve at prices p the cli of the rth household ir pa pb xrorr is the ratio of the minimum expenditure required to attain the base indifference curve at prices pa comparison prices to that required at prices pb reference prices except in very special cases the value of the cli depends on the base indifference curve at which it is evaluated as successively higher base indifference curves are specified one would expect the prices of luxuries to become more important relative to the prices of necessities hence it is convenient to regard the cli as a function of the base indifference curve rather than as a single number corresponding to a particular base thus instead of offering guidance in choosing an appropriate base indifference curve theory suggests that there is no need to choose to construct the exact cli an investigator needs to know the household s preferences lacking this knowledge he rnust fall back on indexes which require less information and which are upper bounds on the exact index the laspeyres index jr papbxrb is the ratio of the cost of purchasing the reference period consumption basket at comparison prices to its cost

cellular telephone new products and the cpi since their introduction in 1983 cellular telephones adoption has grown at 25 35 per year at year end 1997 about 55 million cellular telephones were in use in the united states the bureau of labor statistics bls did not know that cellular telephones existed at least in terms of calculating the consumer price index cpi until 1998 when they were finally included in the cpi omitting cellular telephones from the cpi created a significant bias i estimate a bias in the bls estimate of the telecommunications services index of between 8 1 9 per year because of the omission of the cellular telephone rather than telecommunications service prices increasing at about 1 1 per year the correct calculation has them decreasing at about 8 per year omission of new goods from the cpi for significant periods of time leads to important bias in the calculation of the cpi

did community rating induce an adverse selection death spiral evidence from new york pennsylvania and connecticut using data from the 1987 to 1996 march current population surveys we find no evidence for the dire predictions of some that the imposition of pure community rating leads to a market wide reduction in insurance coverage by setting off an adverse selection death spiral specifically the percentage of individuals in small groups covered by health insurance did not fall in new york which enacted community rating legislation in 1993 relative to either pennsylvania which enacted no insurance reform or connecticut which enacted moderate insurance reforms without imposing community rating consistent with the predictions of the simple rothschild and stiglitz 1976 framework however we find that the new yorkreforms appear to have had a significant impact on the structure of the new yorkinsurance mark et specifically new yorkexperienced a dramatic shift away from indemnity insurance toward hmos while this shift tookplace during a period of nationwide increases in the percentage with managed care the increase in hmo penetration in new york s small group and individual markets was significantly greater than in pennsylvania or connecticut

the morphology of price dispersion this paper is a study of the shape and structure of the distribution of prices at which an identical good is sold in a given market and time period we find that the typical price distribution is symmetric and leptokurtic with a standard deviation between 19 and 36 only 10 of the variance of prices is due to variation in the expensiveness of the stores at which a good is sold while the remaining 90 is due in approximately equal parts to differences in the average price of a good across equally expensive stores and to differences in the price of a good across transactions at the same store we show that the distribution of prices that households pay for the same bundle of goods is approximately normal with a standard deviation between 9 and 14 half of this dispersion is due to differences in the expensiveness of the stores where households shop while the other half is mostly due to differences in households choices of which goods to purchase at which stores we find that households with fewer employed members pay lower prices and do so by visiting a larger number of stores rather than by shopping more frequently

real time price indices inflation spike and falling product variety during the great lockdown we characterize inflation dynamics during the great lockdown using scanner data covering millions of transactions for fast moving consumer goods in the united kingdom we show that there was a significant and widespread spike in inflation first aggregate month to month inflation was 2 4 in the first month of lockdown a rate over 10 times higher than in preceding months over half of this increase stems from reduced frequency of promotions consumers purchasing power was further eroded by a reduction in product variety second 96 of households have experienced inflation in 2020 while in prior years around half of households experienced deflation third there was inflation in most product categories including those that experienced output falls only 13 of product categories experienced deflation compared with over half in previous years while market based measures of inflation expectations point to disinflation or deflation these findings indicate a risk of stagflation should not be ruled out we hope our approach can serve as a template to facilitate rapid diagnosis of inflation risks during economic crises leveraging scanner data and appropriate price indices in real time

adverse selection in health insurance markets evidence from state small group health insurance reforms abstract the past decade witnessed major changes in state laws governing the sale of health insurance to small employers states took measures to restrict insurers ability to distinguish between high and low risk customers because of concern about the low rate of coverage among workers in small firms the high prices in the small group market and the absence of federal health reform using both individual level and employer level data i test predictions about the effect of reforms on the employer provided health insurance market i estimate these effects for small firms and their workers using large firms and their workers in the same states as well as large and small firms and their workers in non reform states as comparison groups i find the reforms decreased the rate of employer coverage on average for workers in small firms by less than two percentage points within small firms low expenditure individuals experienced a larger decline in the rate of coverage through their employer while the coverage rate of high expenditure individuals rose slightly in some specifications there is also evidence that comprehensive reforms increased premiums slightly for small employers and that most of this increase was passed on to workers through higher employee contributions

on the welfare effects of anti discrimination regulations in the ec car market abstract cross country price discrimination in an oligopolistic setting is examined in the context of the market for cars in the european community two types of regulation aimed at limiting price discrimination are considered in one constraints are imposed on absolute cross country price differentials in the other constraints are imposed on price ratios the first rule turns out to be uniformly better than the second in a way that we make precise when a country with no domestic producer of cars is introduced it seems that the redistributional effects of antidiscrimination regulation may be more important than any possible gains in efficiency

nexus of fuel consumption car features and car prices evidence from major institutions in ibadan abstract this study examined the nexus of fuel consumption car characteristics and prices in ibadan it also ascertained whether car buyers undervalue fuel savings a sample of 600 car owners drawn from the six major institutions in ibadan was used in addition to the descriptive analysis the hedonic car price function was estimated using ols and iv estimation techniques the result of the iv estimations were preferred and interpreted empirical findings indicated that respondents do not undervalue fuel savings more explicitly 98 8 of the respondents indicated that they would pay additional naira to buy fuel efficient car if the additional naira is less than the present value of extra future cost of fuel for an inefficient car moreover when asked to rank the factors considered important when purchasing a car fuel consumption ranked third the estimated hedonic price model indicated that the impact of fuel consumption on car price was significantly negative implying that the respondents were willing to pay less for a fuel inefficient car moreover the security and luxury car features were found to increase the price of cars the study recommended that advocacy and orientations be carried out by the stakeholders in the car market to deepen users and potential buyers understanding on car price determinants

index number issues in the consumer price index he boskin commission has ful lled a useful purpose there is now un precedented public interest in price measurement issues and an increasedawareness on the part of academics about the dif cult problems involvedin measuring price change in a dynamic economy there is also increased coop eration between economists and statisticians in attempting to solve these problems this comment offers some perspectives on the magnitude of the differences be tween the xed base laspeyres price index that statistical agencies produce and atheoretical cost of living index along with some thoughts about what can be doneto reduce these differences or biases

redistribution by insurance market regulation analyzing a ban on gender based retirement annuities we illustrate how equilibrium screening models can be used to evaluate the economic consequences of insurance market regulation we calibrate and solve a model of the united kingdom s compulsory annuity market and examine the impact of gender based pricing restrictions we find that the endogenous adjustment of annuity contract menus in response to such restrictions can undo up to half of the redistribution from men to women that would occur with exogenous social security like annuity contracts our findings indicate the importance of endogenous contract responses and illustrate the feasibility of employing theoretical insurance market equilibrium models for quantitative policy analysis

incremental universalism for the united states the states move first astandard health policy joke goes like this health policy expert x dies and goes to heaven god himself greets x and the lord says that the health expert can ask one question before entering heaven the health expert asks will we ever have universal health insurance coverage in the united states god answers yes but not in my lifetime this joke summarizes the prospects that policy experts have typically seen for universal health insurance coverage in the united states for senior policymakers this perspective reflects past battle scars most recently with the clinton administration s proposed health security act in 1994 there has been no serious national attempt at universal coverage since that time in the run up to the november 2008 election the tone of the discussion shifted politicians running for office at the national level talked freely about spending tens of billions of dollars on expanding health insurance coverage but perhaps the most intriguing practical developments occurred at the state level most notable has been the health reform plan enacted by massachusetts in april 2006 this sweeping bill altered insurance markets subsidized insurance coverage for a large swath of the population introduced a new health insurance purchasing mechanism the connector and mandated insurance coverage for almost all citizens the massachusetts experience has led to similar proposals in a number of states including a major but ultimately failed effort in california this new wave of health care proposals and laws is marked by what i call

the expected price of keeping up with the joneses abstract inflation expectations elicited in surveys have been found to exhibit large dispersion across individuals although several explanations have been proposed none fully explain this puzzle we explore in this paper a new behavioral factor social comparison using original survey data we find that respondents who feel they are falling behind compared to their peers report significantly and substantially higher inflation expectations we argue that this result is consistent with an experience based belief formation model in which those unable to keep up with the joneses overweight the high prices of aspiration goods they are unable to purchase

inflation expectations as a policy tool abstract we assess the prospects for central banks using inflation expectations as a policy tool for stabilization purposes we review recent work on how expectations of agents are formed and how they affect their economic decisions empirical evidence suggests that inflation expectations of households and firms affect their actions but the underlying mechanisms remain unclear especially for firms two additional limitations prevent policy makers from being able to actively manage inflation expectations first available surveys of firms expectations are systematically deficient which can only be addressed through the creation of large nationally representative surveys of firms second neither households nor firms expectations respond much to monetary policy announcements in low inflation environments we provide suggestions for how monetary policy makers could pierce this veil of inattention through new communication strategies as well as the potential pitfalls to trying to do so

distributional aspects of the quality change bias in the cpi evidence from spain abstract this paper shows that the richer households are significantly more affected by the quality change bias qcb in the cpi the empirical analysis combines the detailed information pertaining to the size of the qcb for the us with household specific cpis for spain

the formation of consumer inflation expectations new evidence from japan s deflation experience using a new data set we investigate the relationship between the inflation experience and expectations of households in japan focusing on the post 1995 deflationary era our first finding is that inflation expectations increase with age second we find that measured inflation rates also increase with age although age and inflation expectations continue to exhibit a positive correlation even after controlling for the household level inflation rate analysis suggests that the correlation between age and inflation expectations is driven largely by the correlation between cohort and inflation expectations which we interpret to represent the effect of historical inflation experience on inflation expectations

the real real price of nonrenewable resources copper 1870 2000 over the past 40 years economists have devoted considerable effort to estimating long run trends in real commodity prices the results indicate that the real prices for many commodities have fallen suggesting to the surprise of many that resource scarcity is declining over time almost all of this work however uses the u s producer price index or other standard price deflators which recent research shows overestimate inflation for several reasons this article examines copper prices with adjusted deflators designed to eliminate this bias it finds that the trend over time which is significantly downward when no adjustment is made to the deflator displays no tendency in either direction or is significantly upward depending on the magnitude of the deflator adjustment employed these findings suggest that real resources prices provide less support than widely assumed for the hypothesis that resources are becoming more available or less scarce over time

consumer prices the consumer price index and the cost of living after presenting major findings and recommendations the cpi commission reiterates the estimate of a 1 1 percentage point per annum upward bias it rejects the contention that the bls already makes substantial corrections for quality change that quality improvements and new products accrue only to the rich and that procedures to make more extensive quality adjustments valuations of new products and adjustments for commodity and outlet substitution are impractical the bias in the cpi can be sharply reduced as the authors detail in this paper coauthors are ellen r dulberger robert j gordon zvi griliches and dale w jorgenson

on estimating the cost of characteristics indices from consumer demand analysis we examine the information content of relative equivalence scales using a multiperiod framework and argue that in the absence of independence of base ib these scales can be uniquely identified from demand analysis only when the transformations of preferences through time are the same for all household types a property termed as intertemporally invariant base iib utility restrictions imposed by iib on conditional demands are tested empirically and found rejected within the context of a rank 3 demand system applied to individual household data drawn from the u k family expenditure survey 1970 86 welfare implications of false iib assumptions are also empirically investigated jel classification d1 a propos de l estimation du cout des indices caracteristiques a partir de l analyse de la demande des consommateur ce memoire examine le contenu informationnel des echelles d equivalence relative en utilisant un cadre d analyse sur plusieurs periodes et suggere que en l absence d une independance de la base ib ces echelles peuvent etre identifiees d une maniere univoque seulement si les transformations de preferences dans le temps sont les memes pour tous les types de menages on nomme cette propriete utilite de base invariante dans le temps iib les restrictions verifiables imposees par iib sur les demandes conditionnelles sont verifiees empiriquement et sont rejetees dans le contexte d un systeme de demande de rang 3 applique aux donnees des menages individuels dans une etude des depenses des menages de la grande bretagne 1970 86 les implications de faux postulats iib sont analysees empiriquement

incomplete information higher order beliefs and price inertia the question that motivates this paper is how incomplete information impacts the response of prices to nominal shocks our baseline model is a variant of the calvo model in which firms observe the underlying nominal shocks with noise in this model the response of prices is pinned down by three parameters the precision of available information about the nominal shock the frequency of price adjustment and the degree of strategic complementarity in pricing decisions this result synthesizes the broader lessons of the pertinent literature however this synthesis provides only a partial view of the role of incomplete information once one allows for more general information structures than those used in previous work one cannot quantify the degree of price inertia without data on the dynamics of higher order beliefs or of the agents forecasts of inflation we highlight this with three extensions of our baseline model all of which break the tight connection between the precision of information and higher order beliefs featured in previous work

time varying consumer disagreement and future inflation abstract the inflation expectations of over 285 thousand consumers are used to develop model free estimates of the monthly cross sectional mean dispersion asymmetry and extremeness of inflation expectations from 1995 to 2016 the moments provide a novel and direct measure of time varying consumer disagreement about prices i find that the higher order cross sectional moments of inflation expectations are highly informative about future inflation in contrast to popular assumptions these moments do not appear to be noise even after accounting for historical economic data the unanticipated components of the higher order moments are significantly associated with future inflation in effect the higher order moments are neither noise nor conventional economic news the results have significant implications for the widespread practice of trimming inflation expectations data the results also have implications for the study of information rigidities indicating that consumer inflation expectations broadly reflect two types of consumers the first type update their information set at a much faster rate than is typically estimated or assumed the second type have very high information rigidities and only update their information set in response to major economic events

prices engel curves and time space deflation impacts on poverty and inequality in vietnam many developing countries lack spatially disaggregated price data some analysts use no price methods by using a food engel curve to derive the deflator as that needed for nominally similar households to have equal food shares in all regions and time periods this method cannot be tested in countries where it is used as a spatial deflator since they lack suitable price data in this paper data from vietnam are used to test this method against benchmarks provided by multilateral price indexes calculated from repeated spatial price surveys deflators from a food engel curve appear to be a poor proxy for deflators obtained from multilateral price indexes to the extent that such price indexes reliably compare real living standards over time and space these results suggest that estimates of the level location and change in poverty and inequality would be distorted if the engel method deflator was used in their stead

parallel imports challenges from unauthorized distribution channels we examine the problem of parallel imports unauthorized flows of products across countries which compete with authorized distribution channels the traditional economics model of a discriminating monopolist that has different prices for the same good in different markets requires the markets to be separated in some way usually geographically the profits from price discrimination can be threatened by parallel imports that allow consumers in the high priced region some access to the low priced marketplace however as this article shows there is a very real possibility that parallel imports may actually increase profits the basic intuition is that parallel importation becomes another channel for the authentic goods and creates a new product version that allows the manufacturer to price discriminate we propose a two country three stage model to quantitatively study the effects and strategies in the third stage and in the higher priced country where parallel imports have entered we characterize the resulting market segmentation one segment of consumers stays with the authorized version as they place more value on the warranty and services that come with the authorized version another segment switches to parallel imports because a lower price is offered due to lack of country specific features or warranties parallel imports also generate a third and new segment that would not have bought this product before unlike counterfeits that are fabricated by imitators all parallel imports are genuine and sourced from the manufacturer in the lower priced country through authorized dealers therefore the manufacturer s global sales quantity should increase but profit may rise or fall depending on the relative sizes and profitability of the segments a profit maximizing parallel importer should set price and quantity in the second stage after observing the manufacturer s prices in both countries there will be a threshold of across country price gap above which parallel imports would occur in the first stage the manufacturer can anticipate the possible occurrence of a parallel import its price and quantity and its effect on authorized sales in each country to make a coordinated pricing decision to maximize the global supply chain profit under some circumstances the manufacturer should allow parallel imports and under others should prevent them through a stackelberg game we solve for the optimal pricing strategy in each scenario we then find in one extension that when the number of parallel importers increases the optimal authorized price gap should narrow but the prices and quantities of parallel imports may rise or fall in another extension we nd that when the manufacturer has other means such as monitoring dealers differentiating designs and unbundling warranties to contain parallel imports the authorized price gap can widen as a function of the effectiveness of nonpricing controls in summary parallel imports may help the manufacturer to extend the global reach of its product and even boost its global profit if the manufacturer offers a discount version through its authorized dealers it is running a high risk of confusing customers and tarnishing brand images parallel imports may cause similar concerns for the manufacturer but unauthorized dealers are perceived as further removed from the manufacturer therefore there is less risk of confusing consumers when parallel imports are channeled through unauthorized dealers furthermore they are more nimble in diverting the product whenever their transshipment and marketing costs are small enough not to offset the authorized price gap and the valuation discount this may explain why some manufacturers fiercely fight parallel imports while others knowingly use this alternative channel

the evolution of medical spending risk how has the economic risk of health spending changed over time for u s households we describe trends in aggregate health spending in the united states and how private insurance markets and public insurance programs have changed over time we then present evidence from consumer expenditure survey microdata on how the distribution of household spending on health that is out of pocket payments for medical care plus the household s share of health insurance premiums has changed over time this distribution has shifted up over time households spend more on medical care and insurance than they used to but for the purposes of measuring change in risk it is not the mean but the dispersion of this distribution that is of interest we consider two measures of dispersion that serve as proxies for household risk the standard deviation of the distribution of household health spending and the ratio of the 90th percentile of spending to the median the so called 90 50 gap we find surprisingly that neither has increased despite the rapid rise in aggregate health spending this conclusion holds true for broad subgroups of the population for example the nonelderly as a group but not for some narrowly defined subgroups for example low income families with children we next consider how much risk households should face from the perspective of economic efficiency household risk may not have changed much over the past several decades but do we have any evidence that this level represents either too much or too little risk finally we discuss implications for public policy in particular for current debates over expanding health insurance coverage to the uninsured

should the cost of living index provide the conceptual framework for a consumer price index in some countries the cost of living col index serves as the conceptual framework for the cpi but it has been rejected in others this paper reviews issues that have arisen in the statistical agency debate and in the economics literature on the col index including rhetorical matters which have influenced the debate i contend that col theoiy is useful as a decision making framework in estimating components of the cpi and that col index theory provides appropriate guidance for measuring consumer inflation contrary to the view that has been adopted for the european hicp and expressed by an advisory committee for the rpi in several countries the united states netherlands sweden the theory of the cost of living col index provides the conceptual framework for the country s consumer price index cpi see united states department of labor 1997 balk 1994 and dalen 1999 others reject the cost of living index framework an example is the australian bureau of statistics 1997 rejection of the col index is also explicit in an rpi advisory committee recommendation in the united kingdom in still other countries canada being an example official documents for the cpi are ambiguous about the role of the col index statistics canada 1995 the international guideline for consumer price indexes the ilo manual turvey 1989 does not even mention the col index the question has taken on heightened interest recently part of the stimulus comes from the european union s relatively new harmonised indexes of consumer prices hicp for the hicps eurostat has rejected the col

pricing regulation and imperfect competition on the massachusetts health insurance exchange abstract we analyze insurance pricing regulation under imperfect competition on the massachusetts health insurance exchange differential markups lead to price variation apart from cost variation coarse insurer pricing strategies identify consumer demand younger consumers are twice as price sensitive as older consumers older consumers thus face higher markups over costs modified community rating links prices for consumers differing in both costs and preferences and changes the marginal consumer firms face stricter regulations transfer resources from low cost to high cost consumers reduce firm profits and increase overall consumer surplus

hedonic prices for cars an application to the spanish car market 1981 2005 in this article we provide a comparison of different formulations for hedonic regression analysis in order to construct a quality adjusted price index for the spanish car market over the period 1981 to 2005 specifically we address the issue of instability of coefficients over time and propose two alternative estimation procedures based firstly on a moving sample of observations and secondly on a moving average of estimated coefficients in single period equations the statistical tests applied support the proposed methodologies on empirical grounds two conclusions can be emphasized firstly our study concludes that taking quality changes into account car prices in spain deflated by consumer price index cpi declined by 40 between 1981 and 2005 this result is robust to the alternative estimation procedures employed in the study secondly an analysis of convergence shows that for quality adjusted prices a clear trend in convergence emerges between 1986 and 1992 whereas such a trend does n

inflation expectations consumption and the lower bound micro evidence from a large multi country survey abstract using a large multi country survey and new pseudo panel dataset we investigate the spending response of consumers to their beliefs about future inflation the analysis exploits the deviation of expected inflation from the currently perceived inflation rate a choice motivated by local approximation of the traditional euler equation this helps control for unobserved heterogeneity and highlights a positive and economically relevant spending response that is generalised in the population and across countries also a stronger positive response is observed when the lower bound is binding thus lending credence to the stabilisation properties of higher inflation expectations during such episodes

where do the sick go health insurance and employment in small and large firms this research was supported by a grant from the economic research initiative on the uninsured at the university of michigan

aggregate price indices new goods and generics this paper examines the appropriate treatment in the cost of living index of the appearance of new varieties of old goods existing theory here applies to individual households thus we first show in what sense laspeyres and paasche indices for groups of households can be considered approximations to theoretically desirable group indices and then go on to the case of new goods we apply our results to the case of the introduction of generics in pharmaceuticals and show that proper treatment can make a considerable difference

inflation at the household level abstract we use scanner data to estimate inflation rates at the household level households inflation rates have an annual interquartile range of 6 2 9 0 percentage points most of the heterogeneity comes not from variation in broadly defined consumption bundles but from variation in prices paid for the same types of goods lower income households experience higher inflation but most cross sectional variation is uncorrelated with observables households deviations from aggregate inflation exhibit only slightly negative serial correlation almost all variability in a household s inflation rate comes from variability in household level prices relative to average prices not from variability in aggregate inflation

generics and new goods in pharmaceutical price indexes drug prices and their rate of inflation are a major focus of current policy debates on u s health care in this paper we show that where patent expiration and generic entry are significant as they are for many important classes of drugs movements in the official price indexes may be poor indicators of the actual prices paid and the resulting changes in consumer welfare when a drug goes off patent those consumers who regard the branded and generic versions as more or less perfect substitutes experience a substantial price decline and concomitant welfare gain which the current methods used by the statistical agencies fail to capture we suggest a number of alternative ways of proceeding although our computations are based on a limited number of cases they imply that the overall rate of inflation in drug prices may be quite seriously overstated while generic pharmaceuticals are the topic of our calculations the problem discussed is also of wider importance generic drugs are a special and possibly easy case

monetary policy and the information content of prices rational expectations and cleared markets lead to the proposition that feedback monetary policy is irrelevant to real activity as in the analyses of sargent and wallace however if agents are differentially informed and have access to a common price then prospective monetary policy actions future feedback to imperfectly known current circumstances can alter real activity by changing the information content of prices

measuring the substitution bias in japan the demand system approach and a superlative index this study estimates the demand system using japanese micro data and calculates the cost of living index coli to assess the substitution bias in the consumer price index the estimated bias during the sample period of 1982 2000 is about 0 06 percentage points which is larger than the estimates calculated from a superlative index the difference between the coli and a superlative index can be explained with the upward movements of the average utility level in japan since the cost of living for the rich has grown more rapidly than that for the poor

community rating and the market for private non group health insurance abstract prior research on adverse selection in health insurance markets has found only mixed evidence for adverse selection in group settings we examine the impact of state community rating regulations enacted in the 1990s which greatly limited insurers ability to risk rate premiums to determine if adverse selection is more evident in non group insurance markets using data from large national surveys we find evidence of a shift to a less healthy pool of non group enrollees as a consequence of community rating community rating made healthy people 20 to 60 less likely to be insured by non group health insurance in addition we found evidence that young and healthy people were 20 to 30 more likely to be uninsured as a result of community rating we also find evidence that individuals in poor health were 35 to 50 more likely to be insured in the non group market but only limited evidence suggesting that persons in poor health were less likely to be uninsured our results are further supported by findings suggesting that non group enrollees were sicker as a result of the community rating laws lastly we find evidence suggesting that hmo penetration in the non group market increased disproportionately in states that implemented community rating relative to states that did not

labor market consequences of state health insurance regulation this study based mainly on the 1989 98 march current population surveys finds that state mandated health insurance benefits and small group health insurance reform had no statistically significant effects on labor market outcomes such as the quantity of work wages and whether an employee worked for a small or large firm the number and type of state mandated health insurance benefits were unrelated to weeks of work wages and the prevalence of private insurance coverage but positively associated with weekly work hours extensive small group health insurance reform was associated with a slight decline in the prevalence of private insurance coverage in small firms and this reform affected both full and part time employees less extensive reforms were not generally related to the prevalence of private insurance coverage overall the authors do not find strong evidence that insurance regulations affected labor market outcomes although they appear to cause a small decrease in private coverage

consumer shopping behavior how much do consumers save this paper documents the potential and actual savings that consumers realize from four particular types of purchasing behavior purchasing on sale buying in bulk at a lower per unit price buying generic brands and choosing outlets how much can and do households save through each of these behaviors how do these patterns vary with consumer demographics we use data collected by a marketing firm on all food purchases brought into the home for a large nationally representative sample of u k households in 2006 we are interested in how consumer choice affects the measurement of price changes in particular a standard price index based on a fixed basket of goods will overstate the rise in the true cost of living because it does not properly consider sales and bulk purchasing according to our measures the extent of this bias might be of the same or even greater magnitude than the better known substitution and outlet biases

dynamic pricing and imperfect common knowledge abstract introducing private information into the dynamic pricing decision of firms by adding an idiosyncratic component to marginal cost can help explain two stylised facts about price changes aggregate inflation responds gradually and with inertia to shocks at the same time as individual price changes can be large the inertial behaviour of inflation is driven by privately informed firms strategically herding on the public information contained in the observations of lagged aggregate variables the model also matches the average duration between price changes found in the data and it nests the standard new keynesian phillips curve as a special case to solve the model the paper derives an algorithm for solving a class of dynamic models with higher order expectations

empirical studies of depreciation this paper surveys empirical research on depreciation based on an econometric model of asset prices introduced by hall in 1971 and shows how hall s model provides a vehicle for unifying research on constant quality price indices and depreciation an additional objective of the paper is to illustrate the use of this research in constructing an integrated system of income product and wealth accounts a system of vintage accounts like that originated by christensen and jorgenson in 1973 is the key to successful integration

assessing changes in capital and investment as a result of fishing capacity limitation programs this paper provides a framework to evaluate the effectiveness of the european multiannual guidance programmes on capacity limitation based on the evolution of the prices of used fishing vessels and on the measures of capital and investment derived from the estimation of a hedonic price function related to vessels characteristics attention is paid not only to the correct specification of the numerical variables but also to testing for sample selection bias to checking for structural change to analysing the convenience of using alternative estimation methods and to discussing the potential bias as a result of asymmetric information in the used markets the application of this framework to the basque fleets evidences clear and coincident signs of successful adjustment after magp3 but also a substantial investment in the next periods as a result of the modernisation of the fleets

getting prices right what should be done much of the profession accepts that the cpi likely overstates the rate of increase of the cost of living it is less clear that there are sound and feasible steps that the bls can adopt to improve matters in the short run there are unresolved conceptual and identification problems in the measurement of quality superlative price indexes are not feasible and feasible approximations are not superlative and may not even be better the need for a single index that aggregates over heterogeneous consumers with different incomes tastes and needs casts serious doubt on the cost of living approach

the behaviour of the us consumer price index 1913 2003 a study of seasonality in the monthly us cpi this article analyses the seasonality in the monthly consumer price index cpi over the period january 1913 to december 2003 we examine three types of month effects if the mean of monthly cpi changes of the entire data set and of a given month were significantly different from zero if the mean of monthly cpi changes of a given month was different from the mean of the other months and if the variance of the monthly cpi changes for a given month was different from the variance of the other months the mean of monthly cpi changes for the entire data set 0 27 was found to be significantly greater than zero the means of monthly changes show a downward trend from september to december when the data are sliced into three sub periods we find an increasing trend in the means and medians of monthly changes but a decreasing trend in the sds of the monthly changes the mean of monthly cpi changes during the republican presidencies 0 15 was significantly lower than during the democratic presidencies 0

price stickiness along the income distribution and the effects of monetary policy abstract monetary shocks have distributional consequences if they affect relative prices across goods consumed by different households we document that the prices of the goods consumed by high income households are stickier and less volatile than those of the goods consumed by middle income households following a monetary policy shock the estimated impulse responses of high income households consumer price indices are about one third smaller than those of the middle income households we evaluate the implications of these findings in a quantitative multi sector new keynesian model featuring heterogeneous households the distributional consequences of monetary policy shocks are large and similar to those in the econometric model

what to show on the wine labels a hedonic analysis of price drivers of sicilian wines unlike previous literature we construct a hedonic model of wine price that incorporates all the main categories of variables simultaneously to enable a better evaluation of their importance on wine price formation a comprehensive model has the advantage of providing more reliable estimates of the attributes implicit prices thereby facilitating firms pricing and improving effectiveness of wine production and marketing decisions we utilize two different datasets of sicilian wines collecting data from influential wine guides our results suggest that wine price strongly depends on objective features such as vintage alcoholic content geographical origin grape variety producer size and cellaring potential in addition use of containers like tonneaux and barrique positively affects prices whereas use of concrete containers has a negative influence no univocal indications emerge with regard to the effect of the type of company type of viticulture and firm age as for sensorial characteristics our a

product differentiation and oligopoly in international markets the case of the u s automobile industry this paper develops and estimates a model of the u s automobile industry on the demand side a discrete choice model is adopted that is estimated using micro data from the consumer expenditure survey the estimation results are used in conjunction with population weights to derive aggregate demand on the supply side the automobile industry is modelled as an oligopoly with product differentiation equilibrium is characterized by the first order conditions of the profit maximizing firms the estimation results are used in counterfactual simulations to investigate two trade policy issues the effects of the ver and exchange rate pass through

implications of rational inattention abstract a constraint that actions can depend on observations only through a communication channel with finite shannon capacity is shown to be able to play a role very similar to that of a signal extraction problem or an adjustment cost in standard control problems the resulting theory looks enough like familiar dynamic rational expectations theories to suggest that it might be useful and practical while the implications for policy are different enough to be interesting

quality corrected price indices the case of the dutch new passenger car market 1990 1999 market dynamics and technological developments constitute a major challenge to the proper measurement of the price evolution of durable goods in this study hedonic methods are used to estimate quality corrected price indices of new passenger cars in the netherlands 1990 1999 use is made of a huge set of price quantity and quality information about 11 000 car models obtained from different sources during the observation period the nominal price level of all available car models increased about 20 on average while the shares of car models with airbags tinted glass and power steering increased from almost nothing to about 90 matched model price indices and the official cpi for new passenger cars which partially account for quality adjustments estimate the price increase to be equal to 10 6 14 2 respectively 11 2 for the 1990 1999 period by contrast the hedonic fisher like price indices based on the preferred annually estimated brand weighted semi log hedonic model lead to price changes var

health insurance market reform and employee compensation the case of pure community rating in new york abstract pure community rating which was enacted to improve access to health insurance in new york s small group market in 1993 prevents carriers from charging different premiums based on the ages of a firm s workers if small firms were adjusting compensation packages prior to reform to offset higher health care costs of older workers then community rating could lead to greater relative wages for older workers post reform and not necessarily induce adverse selection that results in changes in who is insured i present evidence showing that relative wages of older workers in small firms increased in comparison with other states and with large firms within new york following reform

working to improve the consumer price index he recent report of the advisory commission appointed by the u s senatefinance committee begins with one overarching recommendation thebls should establish a cost of living index coli as its objective in mea suring consumer prices u s senate 1996 p 2 this seems basically right to us indeed the bls has long said that the cost of living framework guides operationaldecisions about the construction of the index gillingham 1974 u s bureau oflabor statistics 1984 1988 1992 1997a putting things slightly differently if thebls staff or other technical experts knew how to produce a true cost of living indexon a monthly production schedule that would be what we would produce althoughwe have no fundamental disagreement with the commission about what the objec tive of the cpi program ought to be we may disagree to some extent about theapproaches and methods that are appropriate and feasible in working toward thatobjective this is a point to which we will return below our rst purpose in the present paper is to comment on the advisory com mission s report and the recommendations it contains