the causes of preference reversal observed preference reversal cannot be adequately explained by violations of independence the reduction axiom or transitivity the primary cause of preference reversal is the failure of procedure invariance especially the overpricing of low probability high payoff bets this result violates regret theory and generalized nonindependent utility models preference reversal and a new reversal involving time preferences are explained by scale compatibility which implies that payoffs are weighted more heavily in pricing than in choice copyright 1990 by american economic association

preference reversals and the independence axiom of all of the paradoxical patterns of behavior reported in laboratory experiments one of the most perplexing for decision theorists is the preference reversal phenomenon a subject in a preference reversal experiment is typically given a choice between a lottery with a high probability of winning a modest amount of money a p bet and a lottery with a low probability of winning a large amount of money a bet the lowest amount of money for which the subject would willingly sell either of these lotteries is also elicited the most common reversal is for a subject to choose the p bet over the bet but to put a higher selling price on the bet preference reversals were first reported by harold lindman 1971 and sarah lichtenstein and paul slovic 1971 in discussing the psychologists discovery of such reversals david grether and charles plott remark the inconsistency is deeper than mere lack of transitivity or even stochastic transitivity it suggests that no optimization principles of any sort lie behind even the simplest of human choices 1979 p 623 this paper offers a simple alternative explanation of documented preference reversals an explanation that does not require the abandonment of the transitivity assumption

preference reversals under ambiguity preference reversals have been widely studied using risky or riskless gambles however little is known about preference reversals under ambiguity unknown probabilities subjects were asked to make a binary choice between ambiguous p bets big likelihood of giving small prize and ambiguous bets small likelihood of giving large prize and their willingness to accept was elicited subjects then performed the same two tasks with risky bets where the probability of winning for a given risky bet is the center of the probability interval of the corresponding ambiguous bet preference reversals are not only replicated under ambiguity but are even stronger than are those under risk this is due to higher elicited prices for the bet and lower elicited prices for the p bet under ambiguity than under risk this result can be explained by the shape of the weighting function for different levels of uncertainty and for different elicitation modes this paper was accepted by peter wakker decision analysis

a heterogeneous conditional logit model of choice aggregate forecasts using mcfadden s conditional logit model of discrete choice harbor the unrealistic implicit assumption of a random utility distribution that is homogeneous across both alternatives and individuals this article relaxes that assumption a choice model is developed that describes the random utility component as a probability mixture model some numerical results illustrate that the derived model is not constrained by the independence of irrelevant alternatives property an experimental test of visual perceptions demonstrates the potential superiority of the model

estimating markups and market conduct with multidimensional product attributes we demonstrate how to estimate a model of oligopoly pricing when products are multi dimensionally differentiated we provide an empirical counterpart to recent theoretical work on product differentiation using specifications informed by economic theory we estimate price cost margins for products differentiated in many dimensions

economic theory of choice and the preference reversal phenomenon a reexamination in a recent issue of this review david grether and charles plott 1979 hereinafter referred to as g p presented a series of experiments that show that individual decisions are made in a manner inconsistent with standard preference theory this inconsistency can be illustrated by the following example individuals under suitable laboratory conditions first have a choice between a lottery with a high probability of winning a small sum of money the p bet probability bet and a lottery with a high stake but low probability of winning the m bet money bet after indicating a preference for one of the lotteries in the pair the same subjects are then asked to place a monetary value on each of the individual lotteries grether and plott found that a large number of participants stated a preference for the p bet in the first round but placed a higher value on the other lottery the m bet in the second round this behavior a preference reversal is inconsistent with the traditional statements of preference theory

income related inequality in life years and quality adjusted life years abstract we estimate the income related inequality in sweden with respect to life years and quality adjusted life years qalys we use a large data set from sweden with over 40 000 individuals followed up for 10 16 years to estimate the survival and quality adjusted survival in different income groups for both life years and qalys we discover inequalities in health favouring the higher income groups for men women in the youngest age group 20 29 years the number of qalys is 43 7 45 7 in the lowest income decile and 47 2 49 0 in the highest income decile

equilibrium with product differentiation tive consumer formulations is used to examine the properties of single and multiple price equilibria conditions under which decreases in the intensity of consumer preferences reduce price are given it is shown that with certain types of demand curves entry can eliminate price cost markups even given product differentiation if competition is localized it is demonstrated that entry does not affect the markup finally the effect of spurious product differentiation on price is examined

experimental economics hard science or wasteful tinkering i take it that in raising the question what have we learned from experimental economics under the broader umbrella of controversy the point is not to solicit a catalogue of experimental findings but rather to signal the more pointed question are we learning anything at all or at least much that is very useful form experimentation in economics as a practising experimentalist i am convinced that experiments do have the potential to make a significant contribution to knowledge in economics this abstract was borrowed from another version of this item

average earnings and long term mortality evidence from administrative data in this paper we exploit a unique database that merges longitudinal earnings data on pennsylvanian workers with national death records to study the detailed nature of the corre lation between earnings and mortality we find that the estimates typically reported in the lit erature which are based on single years of earn ings data are likely to understate substantially the strength of the association between income and mortality in particular relative to a single year of earnings the average of earnings over a six year period predicts a 70 percent greater impact of income on mortality in addition con trolling for the mean level of earnings over a period we find that greater earnings volatility is associated with higher mortality we also examine the lag structure of the rela tionship between earnings and mortality we

the impact of health status on the duration of unemployment spells and the implications for studies of the impact of unemployment on health status this paper examines the impact of health status on the duration of unemployment spells and finds that individuals with impaired health will have significantly longer unemployment spells these longer unemployment spells will result in the stock of unemployed being composed of a larger proportion of individuals with impaired health than the stock of employed although this difference in composition between the stock of unemployed and stock of employed can account for some of the observed difference in mortality rates it cannot explain all of the difference observed in earlier studies

economic conditions early in life and individual mortality this paper analyzes the effect of economic conditions early in life on the individual mortality rate later in life using business cycle conditions early in life as an exogenous indicator we have individual data records from dutch registers of birth marriage and death certificates covering an observation window of unprecedented size 1812 2000 these are merged with historical data on macro economic and health indicators we correct for secular changes over time and other mortality determinants we nonparametrically compare those born in a recession to those born in the preceding boom and we estimate duration models where the individual s mortality rate depends on current conditions conditions early in life age individual characteristics including individual socio economic indicators and interaction terms the results indicate a significant negative effect of economic conditions early in life on individual mortality rates at all ages

preference reversals the impact of truth revealing monetary incentives researchers vigorously debate the impact of incentives in preference reversal experiments do incentives alter behavior and generate economically consistent choices lichtenstein and slovic 1971 document inconsistencies reversals in revealed preference in gamble pairs across paired choice and individual pricing tasks the observed pattern is inconsistent with stable underlying preferences expressed with simple errors lichtenstein and slovic 1973 and grether and plott 1979 introduce incentives but aggregate reversal rates change little these results fostered numerous replications and assertions that models of non stable preferences are required to explain reversals contrary to this research we find that incentives can generate more economically consistent behavior our reevaluation of existing experimental data shows that incentives have a clear impact by better aligning aggregate choices and prices the effect is sufficiently large that with truth revealing incentives a stable preferences with error model not only explains behavior but fits the data as well as any model possibly could

how social security and medicare affect retirement behavior in a world of incomplete markets this paper provides an empirical analysis of how the u s social security and medicare insurance system affect the labor supply of older males in the presence of incomplete markets for loans annuities and health insurance we estimate a detailed dynamic programming dp model of the joint labor supply and social security acceptance decision focusing on a sample of males in the low to middle income brackets whose only pension is social security the dp model delivers a rich set of predictions about the dynamics of retirement behavior and comparisons of actual vs predicted behavior show that the dp model is able to account for wide variety of phenomena observed in the data including the pronounced peaks in the distribution of retirement ages at 62 and 65 the ages of early and normal eligibility for social security benefits respectively we identify a significant fraction of health insurance constrained individuals who have no form of retiree health insurance other than medicare and who can only obtain fairly priced private health insurance via their employer s group health plan the combination of significant individual risk aversion and a long tailed pareto distribution of health care expenditures implies that there is a significant security value for these individuals to remain employed until they are eligible for medicare coverage at age 65 overall our model suggests that a number of heretofore puzzling aspects of retirement behavior can be viewed as artifacts of particular details of the social security rules whose incentive effects are especially strong for lower income individuals and those who do not have access to fairly priced loans annuities and health insurance

aging and inequality in income and health in our earlier work we used data from the national health interview survey nhis to examine life cycle patterns in health status and in the joint distribution of health status and income deaton and paxson 1998 in this paper we summarize and extend those results and provide new evidence from the panel study of income dynamics psid both surveys contain a measure of household income and collect information on an ordinal measures of self reported health status srhs that ranges from 1 excellent to 5 poor section i concerns problems related to the measurement of inequality in health section ii presents evidence from the two surveys on health and income inequality this abstract was borrowed from another version of this item

longitudinal determinants of end of life wealth inequality abstract inequality in wealth among elderly households and in particular the prevalence of very low wealth holdings can be an important consideration in the design of social insurance programs this paper examines the incidence and determinants of low levels of financial and total wealth using repeated cross sections of the health and retirement study hrs and a small longitudinal sample of hrs respondents observed both at age 65 and shortly before death most of those who report very low wealth holdings at the end of their life had little wealth at the traditional retirement age of 65 there is strong persistence over time in reports of very low wealth and more generally relatively little evidence that wealth is drawn down in the first 15 years of retirement the age specific probability of reporting low wealth increases slowly after age 65 low lifetime earnings are strongly predictive of low wealth at retirement and at the end of life the post retirement onset of a major medical condition and for married women the loss of their spouse are both associated with small increases in the probability of reporting very low wealth but they account for a small fraction of low wealth outcomes low levels of wealth accumulation before age 65 rather than gaps in the safety net after 65 or rapid spend down of accumulated assets appear to be the primary determinant of low levels of wealth just before death

do switching costs make markets less competitive abstract the conventional wisdom in economic theory holds that switching costs make markets less competitive this article challenges this claim the authors formulate an empirically realistic model of dynamic price competition that allows for differentiated products and imperfect lock in they calibrate this model with data from frequently purchased packaged goods markets these data are ideal in the sense that they have the necessary variation to identify switching costs separately from consumer heterogeneity equally important consumers exhibit inertia in their brand choices a form of psychological switching cost this makes the results applicable to the broad range of products that are distinctly identified i e branded rather than just to products for which there is a product adoption cost or explicit switching fee in the simulations prices are as much as 18 lower with than without switching costs more important equilibrium prices do not increase even in the presence of switching costs that

the effect of income on mortality evidence from the social security notch abstract legislation in the 1970s created a notch in social security payments with those born after january 1 1917 receiving sharply lower benefits using restricted use versions of the national mortality detail file combined with census data we use this quasi experiment to examine the income mortality link in an elderly population estimates from difference in difference and regression discontinuity models show the higher income group has a statistically significantly higher mortality rate contradicting the previous literature we also found that younger cohorts responded to lower incomes by increasing postretirement work effort suggesting that moderate employment has beneficial health effects for the elderly

determinants of healthcare spending a state level analysis within the high and rising level of healthcare spending for the us as a whole is substantial variation in spending across states yet relatively little attention has been given to the empirical analysis of interstate differences in aggregate healthcare expenditures and therefore little empirical evidence exists at the state level to guide policymakers using data for all 50 states for the year 1998 we estimate an empirical model that includes structural and reduced form healthcare spending equations and a health production function to assess the significance size and relative importance of factors that prior research indicates may play an important role in explaining interstate variation in medical care expenditures and the main pathways through which they operate our results indicate higher levels of healthcare spending for state populations with higher income less education fewer uninsured residents less healthy lifestyles larger proportion of elderly residents greater availability of medical

the dynamics of health in the british household panel survey this paper considers the dynamics of a categorical indicator of self assessed health using eight waves 1991 1998 of the british household panel survey bhps our analysis has three focal points the relative contributions of state dependence and heterogeneity in explaining the dynamics of health the existence and consequences of health related sample attrition and the investigation of the effects of measures of socioeconomic status with a particular focus on educational attainment and income to investigate these issues we use dynamic panel ordered probit models there is clear evidence of health related attrition in the data but this does not distort the estimates of state dependence and of the socioeconomic gradient in health the models show strong positive state dependence and heterogeneity accounts for around 30 of the unexplained variation in health copyright 2004 john wiley sons ltd

a random coefficients logit brand choice model applied to panel data a random coefficients logit model that allows for unobserved heterogeneity in brand preferences and in the responses to marketing variables is empirically investigated using household level panel data the unknown underlying distribution of unobserved heterogeneity is approximated by a discrete distribution the results reveal that there is significant unobserved heterogeneity across households and that ignoring its effects results in a downward bias in the parameter estimates of the marketing variables it is therefore important to account for heterogeneity in both preferences and responses in the absence of any a priori knowledge about the nature of heterogeneity across households

on the existence of a unique price equilibrium for models of product differentiation abstract we prove the existence of a unique price equilibrium for models of product differentiation these models are characterized by demand functions that depend on differences in prices and have log increasing differences in own price and other prices which implies that best response correspondences are increasing many discrete choice models satisfy these conditions including logit models and nested logit models and the existence theorem can be applied directly with the logarithmic transformation the existence theorem can be extended to models with homogeneous demand functions which characterizes representative consumer models

the determinants of mortality mortality rates have fallen dramatically over time starting in a few countries in the 18th century and continuing to fall today in just the past century life expectancy has increased by over 30 years at the same time mortality rates remain much higher in poor countries with a difference in life expectancy between rich and poor countries of also about 30 years this difference persists despite the remarkable progress in health improvement in the last half century at least until the hiv aids pandemic in both the time series and the cross section data there is a strong correlation between income per capita and mortality rates a correlation that also exists within countries where richer better educated people live longer we review the determinants of these patterns over history over countries and across groups within countries while there is no consensus about the causal mechanisms we tentatively identify the application of scientific advance and technical progress some of which is induced by income and facilitated by education as the ultimate determinant of health such an explanation allows a consistent interpretation of the historical cross country and within country evidence we downplay direct causal mechanisms running from income to health

the insurance value of medical innovation abstract economists think of medical innovation as a valuable but risky good producing health benefits but increasing financial risk for consumers and healthcare payers this perspective overlooks how innovation can lower physical risks borne by healthy patients facing the prospect of future disease we present an alternative framework that accounts for all these sources of value and links them to the value of healthcare insurance we show that any innovation worth buying reduces overall risk and generates positive insurance value on its own we conduct a stylized numerical exercise to assess the potential empirical significance of our insights our calculations suggest that conventional methods meaningfully understate the value of historical health gains and disproportionately undervalue treatments for the most severe illnesses where physical risk to consumers is the costliest these calculations also suggest that the value of physical insurance from new technologies may exceed the financial spending risk that they pose

the effect of ownership structure on prices in geographically differentiated industries i analyze how ownership structure and market geography jointly influence fast food prices i estimate a model of demand and supply that accounts for the market geography and run counterfactual experiments that demonstrate how mergers affect prices i find that the impact of mergers can be large that this impact decreases as the merging outlets are farther apart that mergers among market leaders generally increase prices more than mergers among weaker firms and that mergers can increase prices even if the outlets are so far apart that neither outleti s presence affects prices at the other before the merger

term limits causes and consequences this paper consults multiple literatures to specify andevaluate the economic rationales for term limitation particularly on congress i first consider theories that aroseto explain among related issues why individual states mightunilaterally self impose term limits on their own delegationsto congress next i consider two main lines of argument foruniversal limits both of which begin with the empiricalphenomenon of high and rising congressional tenure first supporters of term limits argue that higher tenure biaseslegislatures toward inefficiency big government highspending second higher tenure creates inefficient anti competitive conditions in the legislative election market term limitation would remedy these inefficiencies by virtue ofdecreasing average tenure these claims are then evaluated inlight of the evidence amassed in the literature based on theliterature reviewed this paper finds that while term limitswill reduce average tenure there is no evidence to suggestthat term limits will affect the underlying causes of theseinefficiencies further research on a more general reform which would strike deeper at these underlying causes isimplied

socioeconomic inequality of access to healthcare does choice explain the gradient equity of access is a key policy objective in publicly funded healthcare systems however observed inequalities of access by socioeconomic status may result from differences in patients choices using data on non emergency coronary revascularisation procedures in the english national health service we found substantive differences in waiting times within public hospitals between patients with different socioeconomic status up to 35 difference or 43 days between the most and least deprived population quintile groups using selection models with differential distances as identification variables we estimated that only up to 12 of these waiting time inequalities can be attributed to patients choices of hospital and type of treatment heart bypass versus stent residual inequality after allowing for choice was economically significant patients in the least deprived quintile group benefited from shorter waiting times and the associated health benefits were worth up to 850 per person

observing violations of transitivity by experimental methods the preference reversal phenomenon is usually interpreted as evidence of nontransitivity of preference but has also been explained as the result of the difference between individuals responses to choice and valuation problems the devices used by experimenters to elicit valuations and the random lottery selection incentive system this paper reports an experiment designed so that none of these factors could generate systematic nontransitivities yet systematic violations of transitivity were still found the pattern of violation was analogous with that found in previous preference reversal experiments and is consistent with regret theory copyright 1991 by the econometric society

preference reversal real world lotteries and lottery interested subjects prefer lce reversal or choice reservation price inconsistency has been documented experimentally for zrtain types of lotteries we argue that the relevance of these findings for realworld markets is uncertain because the type of objects used cannot exist on a market and because the extent to which the subjects had any real interest in the objects is unknown using reai world lotteries we have tested choice price consistency on subjects who prefer lotteries ta cash preference reversal was observed but the frequency was much lower than in earlier experiments there were no differences between subjects who qualified as lottery interested and those who did not 1 intmduction

wealth health and child development evidence from administrative data on swedish lottery players we use administrative data on swedish lottery players to estimate the causal impact of substantial wealth shocks on players own health and their children s health and developmental outcomes our estimation sample is large virtually free of attrition and allows us to control for the factors conditional on which the prizes were randomly assigned in adults we find no evidence that wealth impacts mortality or health care utilization with the possible exception of a small reduction in the consumption of mental health drugs our estimates allow us to rule out effects on 10 year mortality one sixth as large as the crosssectional wealth mortality gradient in our intergenerational analyses we find that wealth increases children s health care utilization in the years following the lottery and may also reduce obesity risk the effects on most other child outcomes including drug consumption scholastic performance and skills can usually be bounded to a tight interval around zero overall our findings suggest that in affluent countries with extensive social safety nets causal effects of wealth are not a major source of the wealth mortality gradients nor of the observed relationships between child developmental outcomes and household income jel codes i10 i14 j24

mortality and immortality the nobel prize as an experiment into the effect of status upon longevity it has been known for centuries that the rich and famous have longer lives than the poor and ordinary causality however remains trenchantly debated the ideal experiment would be one in which extra status could somehow be dropped upon a sub sample of individuals while those in a control group of comparable individuals received none this paper attempts to formulate a test in that spirit it collects 19th century birth data on science nobel prize winners correcting for potential biases we estimate that winning the prize compared to merely being nominated is associated with between 1 and 2 years of extra longevity

uncertain health and survival effects on end of life consumption this article analyzes the impact of health and survival uncertainty on the saving and consumption decisions of retirees a dynamic programming approach is used to model the household s planning problem the utility parameters are estimated using panel data we find that a fall into poor health raises the marginal utility from consumption simulations are used to indicate the effects of falling into poor health and loss of spouse they reveal a large transfer from the healthy to the sick partner and a strong dependence of saving on the survivor benefits suggesting that concern about the surviving spouse is an important motive for saving

aggregation and imperfect competition on the existence of equilibrium we present a new approach to the theory of imperfect competition and apply it to study price competition among differentiated products the central result provides general conditions under which there exists a pure strategy price equilibrium for any number of firms producing any set of products this includes products with multi dimen sional attributes in addition to the proof of existence we provide conditions for uniqueness our analysis covers location models the characteristics approach and probabilistic choice together in a unified framework to prove existence we employ aggregation theorems due to prekopa 1971 and borell 1975 our companion paper caplin and nalebuff 1991 introduces these theorems and develops the application to super majority voting rules we present a new approach to the theory of imperfect competition and apply it to study price competition among differentiated products the central result is that there exists a pure strategy price equilibrium for any number of firms producing any set of products in addition to the proof of existence we provide conditions for uniqueness our model both unites diverse strands of the earlier literature and opens up uncharted areas for future analysis in particular we expand the traditional one dimensional framework to allow for multi dimen sional product differentiation our approach involves twin restrictions on consumer preferences one on individuals preferences the other on the distribution of preferences across society these are generalizations of the restrictions supporting 64 majority rule presented in caplin and nalebuff 1988 to prove existence we apply a new technique of aggregation this technique is valuable in a variety of other problems in the companion paper we use the aggregation result to generalize our earlier work on 64 majority rule and to characterize the relationship between the distribution of human capital and the distribution of income caplin and nalebuff 1991 there are additional applications in statistics and in search theory we begin with a brief review of the early literature on imperfect competition describing in more detail the existence problem and previous solutions section 3 presents our twin assumptions and shows that they cover many standard cases in section 4 we introduce the aggregation theorem and use it in the analysis of demand functions the proof of existence of equilibrium is in section

optimizing multinomial logit profit functions the multinomial logit model is a standard approach for determining the probability of purchase in product line problems when the purchase probabilities are multiplied by product contribution margins the resulting profit function is generally nonconcave because of this standard nonlinear search procedures may terminate at a local optimum which is far from the global optimum we present a simple procedure designed to alleviate this problem the key idea of this procedure is to find a path of prices from the global optimum of a related but concave logit profit function to the global optimum of the true but nonconcave logit profit function

the strategic implications of scale in choice based conjoint analysis choice based conjoint cbc studies have begun to rely on simulators to forecast equilibrium prices for pricing strategic product positioning and patent copyright valuations whereas cbc research

why democracies produce efficient results by applying the standard tools of microeconomic analysis i argue that democratic markets work as well as economic markets in particular i show that previous work has greatly exaggerated the existence of principal agent and informational problems in electoral markets and has drawn incorrect conclusions

seniority and anti competitive restrictions on the legislative common pool tenure s impact on the overall production of legislation and the concentration of political benefits it is well established that geographic areas benefit in terms of the share of government spending they capture from having a legislator with longer tenure holding constant the tenure of other legislators however the implications of this literature for how the total production of legislation changes if all members gained seniority is less clear increased levels and dispersion of seniority within congress generate a cartel like effect whereby legislators restrict the quantity of legislation enacted and increase the average price of each passed bill the analysis provides a natural experiment to gauge the impacts of the emergence of the congressional committee system

a probabilistic choice model for market segmentation and elasticity structure marketing scholars commonly characterize market structure by studying the patterns of substitution implied by brand switching though the approach is useful it typically ignores the destabilizing

income inequality and health status in the united states evidence from the current population survey several recent studies have identified an association between income inequality and aggregate health outcomes this has been taken to be evidence that inequality is detrimental to individual health we use data from the 1995 99 march current population survey to examine the effect of income inequality on individual health status for both the general population and those individuals in poverty we find no consistent association between income inequality and individual health status our results contradict recent claims that the psychosocial effects of income inequality have dramatic consequences for individual health outcomes

price competition under mixed multinomial logit demand functions in this paper we postulate a general class of price competition models with mixed multinomial logit demand functions under affine cost functions in these models the market is partitioned into a finite set of market segments we characterize the equilibrium behavior of this class of models in the case where each product in the market is sold by a separate independent firm we identify a simple and very broadly satisfied condition under which a pure nash equilibrium exists and the set of nash equilibria coincides with the solutions of the system of first order condition equations a property of essential importance to empirical studies this condition specifies that in every market segment each firm captures less than 50 of the potential customer population when pricing at a specific level that under the condition is an upper bound for a rational price choice for the firm irrespective of the competitors prices we show that under a somewhat stronger but still broadly satisfied version of the abov

aggregation in a model of price competition abstract in a model of price competition single product firms compete for consumers consumers purchase a variable quantity of one of the differentiated goods the paper provides results on equilibrium existence when consumers are heterogeneous in their evaluation of the differentiated goods among each other their evaluation of the differentiated goods relative to the outside good and heterogeneous in income furthermore i provide sufficient conditions for dominance solvability and monotone comparative statics journal of economic literature classification numbers d43 d11

inter vivos transfers and bequests in three oecd countries reforms reducing the generosity of pensions have distributional effects on future generations if individuals care about their descendants welfare but only affect elderly individuals if bequests are the unintentional result of precautionary savings and safety net programmes such as unemployment insurance may displace sources of private help such as that provided by living parents to their children in need this paper provides comparable measures of how expected bequests and transfers vary with cumulated parental earnings in the united states west germany and the united kingdom the strength of bequest motives is empirically very weak in the available data private inter vivos transfers which appear to depend on the recipients economic situation are partly crowded out by public unemployment insurance programmes together involuntary bequests and intentional inter vivos transfers appear to be an important channel of intergenerational inequality transmission and strengthen substantially the relationship between an individual s and his parents economic status ernesto villanueva

preference paradoxes and lexicographic choice abstract results of various experiments reported in the literature have shown repeated violations of expected utility theory this paper presents a model of lexicographic choice under uncertainty that has the probability of gain or at least no loss and the best possible outcome as well as expected utility as determinants of choice under different conditions the model easily explains the observed violations and other curious preference patterns including the allais and ellsberg paradoxes probalistic insurance preference reversals preference cycles and the reflection isolation and translation effects despite its explanatory power the model is as testable as the expected utility hypothesis

veterans interests and the transition to government growth 1870 1915 civil war veterans were the first interest group to use their political power to obtain substantial monetary transfers from the u s treasury veterans supported the republican party and in exchange republicans provided increasingly generous veterans benefits placing a strain on the treasury that led toward a demand for increased taxes veterans also established a precedent that other groups could follow to petition the goverment for economic benefits shaping the transformation of american government in the progressive era which led to the substantial growth of the federal government in the 20th century

the effect of pensions on longevity evidence from union army veterans this study uses changes in pension laws for union army veterans as a natural experiment to estimate the causal effect of pensions on longevity and to examine potential pathways underlying such a relationship we examine the effects of the pension laws of 1907 and 1912 which granted old age pensions to union army veterans life expectancy for veterans who received such a pension increased by 0 5 years and 2 7 years respectively the effect of veteran pensions on longevity was large across wealth groups and size of city pensions reduced mortality for both acute and non acute causes of death

competition and outsourcing with scale economies scale economies are commonplace in operations yet because of analytical challenges relatively little is known about how firms should compete in their presence this paper presents a model of competition between two firms that face scale economies i e each firm s cost per unit of demand is decreasing in demand a general framework is used which incorporates competition between two service providers with price and time sensitive demand a queuing game and competition between two retailers with fixed ordering costs and pricesensitive consumers an economic order quantity game reasonably general conditions are provided under which there exists at most one equilibrium with both firms participating in the market we demonstrate in the context of the queuing game that the lower cost firm in equilibrium may have a higher market share and a higher price an enviable situation we also allow each firm to outsource their production process to a supplier even if the supplier s technology is no better than the firms technology and the supplier is required to establish dedicated capacity so the supplier s scale can be no greater than either firm s scale we show that the firms strictly prefer to outsource we conclude that scale economies provide a strong motivation for outsourcing that has not previously been identified in the literature

cognitive abilities and portfolio choice we study the relation between cognitive abilities and stockholding using the recent survey of health ageing and retirement in europe share which has detailed data on wealth and portfolio composition of individuals aged 50 in 11 european countries and three indicators of cognitive abilities mathematical verbal fluency and recall skills we find that the propensity to invest in stocks is strongly associated with cognitive abilities for both direct stock market participation and indirect participation through mutual funds and retirement accounts since the decision to invest in less information intensive assets such as bonds is less strongly related to cognitive abilities we conclude that the association between cognitive abilities and stockholding is driven by information constraints rather than by features of preferences or psychological traits

measuring market power in the ready to eat cereal industry the ready to eat cereal industry is characterized by high concentration high price cost margins large advertising to sales ratios and numerous introductions of new products previous researchers have concluded that the ready to eat cereal industry is a classic example of an industry with nearly collusive pricing behavior and intense nonprice competition this paper empirically examines this conclusion in particular i estimate price cost margins but more importantly i am able empirically to separate these margins into three sources i that which is due to product differentiation ii that which is due to multi product firm pricing and iii that due to potential price collusion the results suggest that given the demand for different brands of cereal the first two effects explain most of the observed price cost margins i conclude that prices in the industry are consistent with noncollusive pricing behavior despite the high price cost margins leading firms are able to maintain a portfolio of differentiated products and influence the perceived product quality it is these two factors that lead to high price cost margins

mortality health status and wealth in this paper we use the two waves of the british retirement survey 1988 1989 and 1994 to quantify the relationship between socioeconomic status and health outcomes we find that even after conditioning on the initial health status wealth rankings are important determinants of mortality and the evolution of the health indicator in the survey for men aged 65 moving from the 40th percentile to the 60th percentile in the wealth distribution increases the probability of survival by between 1 0 and 1 9 percentage points depending on the measure of wealth used a similar effect is found for women of between 1 1 and 1 3 percentage points in the process of estimating these effects we control for nonrandom attrition from our sample

symmetric equilibrium existence and optimality in differentiated product markets abstract equilibrium existence and optimality are analysed in a market for products differentiated by their variety a game of three stages is analysed firms enter in the first stage choose varieties in the second stage and choose prices in the third stage the existence of subgame perfect equilibria is established at equilibrium products are symmetrically located in the space of characteristics and are offered at equal prices the surplus maximizing solution is characterized and it is shown that surplus maximizing product diversity is lower than the equilibrium one

the political economy of benefits and costs a neoclassical approach to distributive politics this essay offers a rational political explanation for the notorious inefficiency of pork barrel projects with an optimization model of legislative behavior and legislative institutions the model emphasizes the economically arbitrary from a welfare point of view importance of the geographic incidence of benefits and costs owing to the geographic basis for political representation we explore the implications of a legislator s objective function and derive conditions under which a representative legislature will select an omnibus of projects each of which exceeds the efficient scale

the effects of payoff magnitude and heterogeneity on behavior in 2 2 games with unique mixed strategy equilibria the logit version of quantal response equilibrium predicts that equilibrium behavior in games will vary systematically with payoff magnitudes if all other factors are held constant including the nash equilibria of the game we explore this in the context of a set of asymmetric 2x2 games with unique totally mixed strategy equilibria the data provide little support for the payoff magnitude predictions of the logit equilibrium model we extend the theoretical quantal response equilibrium model to allow for heterogeneity and find that the data fit the heterogeneous version of the theory significantly better

choice under uncertainty problems solved and unsolved ffifteen years ago the theory of choice under uncertainty could be considered one of the success stories of economic analysis it rested on solid axiomatic foundations it had seen important breakthroughs in the analytics of risk risk aversion and their applications to economic issues and it stood ready to provide the theoretical underpinnings for the newly emerging information revolution in economics 1 today choice under uncertainty is a field in flux the standard theory is being challenged on several grounds from both within and outside economics the nature of these challenges and of our profession s responses to them is the topic of this paper

income productivity in china on the role of health this study provides empirical evidence regarding the income productivity of health human capital in china we appeal to concepts from human capital theory to support a basic model that treats health as a form of human capital in the income production process our model examines the economic return at the household level from the health of its individual members we estimate this with a longitudinal sample drawn from the china health and nutrition survey chns allowing us to exploit within variation in health and income to address possible unobservables biasing estimates of the impact of health on income in the simple cross sectional setting household income is strongly influenced by the health of its members particularly in rural areas these findings could have important implications for health and economic policy making aimed at reducing the long standing urban rural economic gap and more comprehensively insuring the rural population against health and economic risk

examining risk preferences under high monetary incentives experimental evidence from the people s republic of china several experimental sessions were conducted to elicit certainty equivalents for a sequence of lotteries involving real monetary outcomes the opportunity to conduct sessions in the people s republic of china afforded the ability to offer very large monetary incentives relative to subjects living costs in the highest payoff condition subjects earned three times their normal monthly revenue in the course of a two hour experiment results indicate a statistically significant impact of the level of monetary incentives on revealed risk preferences however even under extreme monetary incentives subjects demanded amounts well in excess of expected value for low probability gain prospects copyright 1992 by american economic association

health status and portfolio choice causality or heterogeneity abstract this paper explores the role of unobserved individual characteristics in the health assets and health portfolio correlations we apply various econometrics models to a unique longitudinal dataset with rich information that allows for the exploitation of four different health indices our findings show strong cross sectional correlations between health and both financial and non financial assets but these correlations seem to be mainly driven by heterogeneity as the correlations largely disappear in the fixed effects model adverse health shocks however are found to motivate a safer portfolio choice even after individual fixed effects are controlled for a result consistent with the prediction made by the background risk theory our findings suggest that health shocks shift investment from risky assets toward other financial assets but keep the total financial assets unchanged

rationalizability learning and equilibrium in games with strategic complementarities we study a rich class of noncooperative games that includes models of oligopoly competition macroeconomic coordination failures arms races bank runs technology adoption and diffusion r d competition pretrial bargaining coordination in teams and many others for all these games the sets of pure strategy nash equilibria correlated equilibria and rationalizable strategies have identical bounds also for a class of models of dynamic adaptive choice behavior that encompasses both best response dynamics and bayesian learning the players choices lie eventually within the same bounds these bounds are shown to vary monotonically with certain exogenous parameters we study the class of noncooperative supermodular games introduced by topkis 1979 and further analyzed by vives 1985 1989 who also pointed out the importance of these games in industrial economics supermodular games are games in which each player s strategy set is partially ordered the marginal returns to increasing one s strategy rise with increases in the competitors strategies so that the game exhibits strategic complementarity 2 and if a player s strategies are multidimensional marginal returns to any one com ponent of the player s strategy rise with increases in the other components this class turns out to encompass many of the most important economic applications of noncooperative game theory in macroeconomics diamond s 1982 search model and bryant s 1983 1984 rational expectations models can be represented as supermodular games in each of these models more activity by some members of the economy raises the returns to increased levels of activity by others in oligopoly theory some models of bertrand oligopoly with differentiated products qualify as supermodu lar games in these games when a firm s competitors raise their prices the marginal profitability of the firm s own price increase rises a similar structure is present in games of new technology adoption such as those of dybvig and spatt 1983 farrell and saloner 1986 and katz and shapiro 1986 when more users hook into a communication system or more manufacturers adopt an interface standard the marginal return to others of doing the same often rises similarly in some specifications of the bank runs model introduced by diamond and dybvig 1983 when more depositors withdraw their funds from a bank it is more worthwhile for other depositors to do the same in the warrant exercise

inheritances intergenerational transfers and the accumulation of health research on inheritances has largely focused on the motives of the bequeathing regardless of the motivations of the giving generation prior to death wealth is transferred and this additional money may have an impact on the receiving generation in particular inheritances may be correlated with individuals health for several reasons first there may be a causal effect inheritances provide additional financial resources allowing recipients to purchase inputs to health and health care a large literature on socioeconomic status ses and health investigates the effect of financial resources on health second inheritances may signal the overall strength of a dynasty this dynastic strength would manifest itself in both better health and more ability to leave a bequest inheritances could be associated with better health because parents who will eventually bequeath wealth to their children may have disproportionately higher ses which improves the health outcomes of the children third bequests and a bequest motive may signal a stronger interest in one s child this reminder to the child could improve his emotional well being this paper

aging in the early 20th century the authors discuss changes in u s morbidity and mortality in the early twentieth century with a focus on data from the union army recruit sample this sample consists of approximately 36000 men born between 1820 and 1843 this paper examines the work of five scholars who have been among those principally involved over the past six years not only in the construction of the data set but in using the union army data to examine an interesting range of problems associated with aging excerpt

pre play learning and the preference reversal phenomenon elicited preference rankings for two lotteries are typically inconsistent across choice and pricing tasks we test whether pre play learning makes preference rankings consistent pre play learning denotes ex ante lottery learning where subjects observe playing lotteries before making decisions we find that pre play learning makes the average selling prices for the p bet of subjects who choose the p bet higher than their average selling prices for the bet however pre play learning is not strong enough to equalize the rates of standard and non standard reversals although pre play learning reduces the rate of standard reversals

estimating the effect of income on health and mortality using lottery prizes as an exogenous source of variation in income a vast literature has established a strong positive relation between income and health status and a negative relation with mortality this paper studies the effects of income on health and mortality using only the part of income variation due to a truly exogenous factor monetary lottery prizes of individuals the findings are that higher income causally generates good health and that this effect is of a similar magnitude as when traditional estimation techniques are used a 10 percent income increase improves health by about 4 5 percent of a standard deviation

did women s suffrage change the size and scope of government this paper examines the growth of government during this century as a result of giving women the right to vote using cross sectional time series data for 1870 1940 we examine state government expenditures and revenue as well as voting by u s house and senate state delegations and the passage of a wide range of different state laws suffrage coincided with immediate increases in state government expenditures and revenue and more liberal voting patterns for federal representatives and these effects continued growing over time as more women took advantage of the franchise contrary to many recent suggestions the gender gap is not something that has arisen since the 1970s and it helps explain why american government started growing when it did

uncertain medical expenses and precautionary saving near the end of the life cycle this paper introduces a dynamic structural model of household consumption decisions in which elderly families consider the effects of uncertain future medical expenses when deciding current levels of consumption the model with uncertain medical expenses implies a potentially important role for precautionary saving incentives to explain slow rates of dissaving among elderly americans during retirement rather than just simulating the stochastic dynamic model preference parameters are estimated using panel data on health wealth and expenditures for retired families the health uncertainty model predicts consumption levels closer to observed expenditures than a life cycle model with uncertain longevity however elderly families typically dissave their financial assets more slowly than even the baseline health uncertainty model predicts is optimal

preference reversals without the independence axiom the preference reversal phenomenon was believed to be inconsistent with the transitivity axiom of decision theory however recent theoretical papers have demonstrated that the preference reversals that were observed in earlier experiments could be explained by subject violations of the independence axiom or the compound lottery axiom therefore those preference reversals are not known to be inconsistent with generalization of expected utility theory that replace the independence axiom the present paper reports the results of experiments in which a substantial proportion of subject responses violate the asymmetry axiom these results are inconsistent with expected utility theory and its generalizations copyright 1989 by american economic association

worker absence and productivity evidence from teaching a significant amount of work time is lost each year due to worker absence but evidence on the productivity losses from absenteeism remains scant due to difficulties with identification we use uniquely detailed data on the timing duration and cause of absences among teachers to address many of the potential biases from the endogeneity of worker absence our analysis indicates that worker absences have large negative impacts the expected loss in daily productivity from employing a temporary substitute is on par with replacing a regular worker of average productivity with one at the 10th 20th percentile of productivity

wealthier is healthier we estimate the effect of income on health using cross country timeseries data on health infant and child mortality and life expectancy and income per capita we use instrumental variables estimates using exogenous determinants of income growth to identify the pure income effect on health isolated from reverse causation or incidental association the long run income elasticity of infant and child mortality in developing countries lies between 0 2 and 0 4 using these estimates we calculate that over a half a million child deaths in the developing world in 1990 alone can be attributed to the poor economic performance in the 1980s

a median voter model of health insurance with ex post moral hazard abstract one of the main features of health insurance is moral hazard as defined by pauly pauly m v 1968 the economics of moral hazard comment american economic review 58 531 537 people face incentives for excess utilization of medical care since they do not pay the full marginal cost for provision to mitigate the moral hazard problem a coinsurance can be included in the insurance contract but health insurance is often publicly provided having a uniform coinsurance rate determined in a political process is quite different from having different rates varying in accordance with one s preferences as is possible with private insurance we construct a political economy model in order to characterize the political equilibrium and answer questions like under what conditions is there a conflict in society on what coinsurance rate should be set and which groups of individuals will vote for a higher and lower than equilibrium coinsurance rate respectively we also extend our basic model and allow people to supplement the coverage provided by the government with private insurance then we answer two questions who will buy the additional coverage and how do the coinsurance rates people are now faced with compare with the rates chosen with pure private provision

the mortality effects of retirement evidence from social security eligibility at age 62 abstract social security eligibility begins at age 62 and approximately one third of americans immediately claim at that age we examine whether age 62 is associated with a discontinuous change in aggregate mortality a key measure of population health using mortality data that covers the entire u s population and includes exact dates of birth and death we document a robust two percent increase in male mortality immediately after age 62 the change in female mortality is smaller and imprecisely estimated additional analysis suggests that the increase in male mortality is connected to retirement from the labor force and associated lifestyle changes

accidental bequests a curse for the rich and a boon for the poor when accidental bequests signal otherwise unobservable individual characteristics such as productivity and longevity the population should be partitioned into two groups those who do not receive an inheritance and those who do the first tagged group receives a mirrlees second best tax schedule the second group when its type is fully revealed faces a first best tax schedule receiving an inheritance makes high ability types worse off and low ability types better off high ability individuals face a bequest tax of more than 100 percent while low ability types face a bequest tax that can be smaller as well as larger than 100 percent and it might even be negative

technical note sequential multiproduct price competition in supply chain networks we analyze a general model in which at each echelon of the supply process an arbitrary number of firms compete offering one or multiple products to some or all of the firms at the next echelon with firms at the most downstream echelon selling to the end consumer at each echelon the offered products are differentiated and the firms belonging to this echelon engage in price competition the model assumes a general set of piecewise linear consumer demand functions for all products potentially brought to the consumer market where each product s demand volume may depend on the retail prices charged for all products consumers preferences over the various product retailer combinations are general and asymmetric similarly the cost rates incurred by the firms at the most upstream echelon are general as well we fully characterize the equilibrium behavior under linear price only contracts and we show how all equilibrium performance measures can be computed via a simple recursive scheme moreover we establish how changes in the model parameters in particular exogenous cost rates or intercept values in the demand functions impact the system wide equilibrium these comparative statics results allow for the quantification of cost pass through effects and the measurement and characterization of the firms brand value lastly we illustrate what qualitative impacts various changes in the structure of the supply chain network may bring forth

causal effects of health shocks on consumption and debt quasi experimental evidence from bus accident injuries abstract endogeneity between health and wealth presents a challenge for estimating causal effects of health shocks using a quasi experimental design comprising exogenous shocks sustained as bus accident injuries in india with controls drawn from travelers on the same bus routes one year later i present new evidence of causal effects on consumption and debt using primary household survey data i find that households faced with shock related expenditures are able to smooth consumption on food housing and festivals with small reductions in educational spending debt was the principal mitigating mechanism households used leading to significantly larger levels of indebtedness

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

a general equilibrium model for industries with price and service competition this paper develops a stochastic general equilibrium inventory model for an oligopoly in which all inventory constraint parameters are endogenously determined we propose several systems of demand processes whose distributions are functions of all retailers prices and all retailers service levels we proceed with the investigation of the equilibrium behavior of infinite horizon models for industries facing this type of generalized competition under demand uncertainty we systematically consider the following three competition scenarios 1 price competition only here we assume that the firms service levels are exogenously chosen but characterize how the price and inventory strategy equilibrium vary with the chosen service levels 2 simultaneous price and service level competition here each of the firms simultaneously chooses a service level and a combined price and inventory strategy 3 two stage competition the firms make their competitive choices sequentially in a first stage all firms simultaneously choose a service level in a second stage the firms simultaneously choose a combined pricing and inventory strategy with full knowledge of the service levels selected by all competitors we show that in all of the above settings a nash equilibrium of infinite horizon stationary strategies exists and that it is of a simple structure provided a nash equilibrium exists in a so called reduced game we pay particular attention to the question of whether a firm can choose its service level on the basis of its own input characteristics i e its cost parameters and demand function only we also investigate under which of the demand models a firm under simultaneous competition responds to a change in the exogenously specified characteristics of the various competitors by either i adjusting its service level and price in the same direction thereby compensating for price increases decreases by offering improved inferior service or ii adjusting them in opposite directions thereby simultaneously offering better or worse prices and service

old age longevity and mortality contingent claims this paper analyzes the savings and longevity impacts of mortality contingent claims defined here as income measures such as annuities and life insurance under which earned income is contingent on the length of one s life the postwar increase in mandatory annuity and life insurance programs as well as the rapid increase in the life expectancy of older ages motivates a better understanding of the incentive effects that mortality contingent claims have on longevity related behavior we claim that these incentives in often alter the standard conclusions obtained about old age support when mortality is treated exogenously in particular we argue that annuities involve moral hazard effects that increase longevity and among other things introduce a positive interaction between public programs for health care and income support for the elderly programs that have grown enormously in developed countries

healthy bodies and thick wallets the dual relation between health and economic status there is abundant evidence of a quantitatively large association between many measures of economic status including income and wealth and a variety of health outcomes such as mortality or morbidity however considerable and often heated debate remains especially across disciplines about the direction of causation and about why the association arises although medical scientists are often convinced that the dominant if not exclusive pathway is that variation in socioeconomic status produces health disparities they are increasingly debating among themselves about why low economic status might lead to poor health at least for modern industrial countries 1 the old standby arguments the less well to do have access to less or lower quality medical care or a stronger pattern of deleterious personal behaviors have been rejected as insufficient instead a series of intriguing competing theories have arisen that emphasize long term impacts of early childhood or even inter uterine environmental factors the cumulative effects of prolonged exposures to individual stressful events or reactions to macro societal factors such as rising levels of income inequality a common link is that each theory attempts to document the physiological processes through which low economic status leads to poorer health while these scientific questions are extremely important this research has taken place with little input from economists economists are now making contributions about the alternative pathway the impact poor health may have on economic resources poor health may restrict a family s capacity to earn income or to accumulate assets by limiting work or by raising medical expenses at a minimum this work should provide a caution against exaggerating the magnitude of causation from economic status to health outcomes but the potential contribution runs deeper as people age the evolving variation in individual health outcomes may offer additional statistical information to estimate parameters of household savings and consumption behavior that so far have proven to be somewhat elusive thus incorporating health uncertainty and risk into economic models should eventually enrich our understanding of basic tenets of household behavior the first section of this paper documents the size of the association between health and one prominent economic status measure household wealth section two deals with how health influences economic status by sketching out reasons why health may alter household savings and eventually wealth and then providing estimates of the empirical magnitude of these effects section three shifts attention to the alternative pathway the links between economic status and health and summarizes 2major controversies and evidence surrounding these issues

market structure and multiple equilibria in airline markets we provide a practical method to estimate the payoff functions of players in complete information static discrete games with respect to the empirical literature on entry games originated by bresnahan and reiss 1990 and berry 1992 the main novelty of our framework is to allow for general forms of heterogeneity across players without making equilibrium selection assumptions we allow the effects that the entry of each individual airline has on the profits of its competitors its competitive effects to differ across airlines the identified features of the model are sets of parameters partial identification such that the choice probabilities predicted by the econometric model are consistent with the empirical choice probabilities estimated from the data we apply this methodology to investigate the empirical importance of firm heterogeneity as a determinant of market structure in the u s airline industry we find evidence of heterogeneity across airlines in their profit functions the competitive effects of large airlines american delta united are different from those of low cost carriers and southwest also the competitive effect of an airline is increasing in its airport presence which is an important measure of observable heterogeneity in the airline industry then we develop a policy experiment to estimate the effect of repealing the wright amendment on competition in markets out of the dallas airports we find that repealing thewright amendment would increase the number of markets served out of dallas love

a theory of competition among pressure groups for political influence this paper presents a theory of competition among pressure groups for political influence political equilibrium depends on the efficiency of each group in producing pressure the effect of additional pressure on their influence the number of persons in different groups and the deadweight cost of taxes and subsidies an increase in deadweight costs discourages pressure by subsidized groups and encourages pressure by taxpayers this analysis unifies the view that governments correct market failures with the view that they favor the politically powerful both are produced by the competition for political favors

the demand for local telephone service a fully discrete model of residential calling patterns and service choices we present an empirical model of households choices among local telephone service options for example between flat rate and measured service and the interrelation of these choices with the number and average duration of local calls households make at each time of day to each geographical zone using a nested logit model with estimation performed on a randomly selected subset of the households calling patterns we calculate elasticities of demand for each local service option number of calls average duration and revenues with respect to the fixed monthly charges and the usage charges for calling under each option we find moderate price elasticities of number of calls with respect to usage charges for households subscribing to measured service nevertheless raising usage charges has a negligible effect on revenues since a sufficient number of households either originally subscribe to flat rate service or convert to flat rate service in response to higher usage charges we find a high elasticity of demandfor each service option with respect to itsfixed monthlyfee this indicates high substitutability among service options the shift among service options induces new calling patterns which wefind to be a small but not negligible indirect effect e most telephone operating companies offer residential customers several options for local service there are two general categories of service flat rate service under which a household can for a fixed monthly charge make an unlimited number of calls within a specified geographical area and measured service for which the household pays a lower fixed monthly fee but can make only a specified number or dollar value of calls at no extra charge after which charges are incurred for additional calls various flat rate services differ in the size of the geographical area in which calling is at no extra charge with higher monthly fees for larger areas measured services differ with respect to the threshold number or dollar value of calls beyond which the customer is charged