global price dispersion are prices converging or diverging abstract this paper documents significant time variation in the degree of global price convergence over the last fifteen years in particular there appears to be a general u shaped pattern with price dispersion first falling and then rising in recent years a pattern which is remarkably robust across country groupings and commodity groups this time variation is difficult to explain in terms of the standard gravity equation variables common in the literature as these tend not to vary much over time or have not risen in recent years however regression analysis indicates that this time varying pattern coincides well with oil price fluctuations which are clearly time varying and have risen substantially since the late 1990s as a result this paper offers new evidence on the role of transportation costs in driving international price dispersion

monetary union price level convergence and inflation how close is europe to the usa abstract the pattern of price dispersion across european and us cities from 1990 to 2004 is documented there is a striking decline in dispersion for traded goods prices in europe most of which took place prior to the launch of the euro dispersion in the euro area is now quite close to that of the usa this evidence provides useful facts for future work assessing the importance of various developments in europe harmonization of tax rates convergence of incomes and labor costs liberalization of trade and factor markets and increased coherence of monetary policy

rationing by waiting and the value of time results from a natural experiment the authors analyze data from a natural experiment with rationing by waiting in the situation motorists were confronted with a choice between waiting in line for low priced gasoline or purchasing at a higher price without waiting they view this as a revealed preference experiment and use their choices to estimate the value of time spent waiting as a function of individual characteristics in most cases the estimates of the value of time are quite similar to individuals after tax wages 13 references 7 tables

markets under price controls in partial and general equilibrium abstract when parallel markets arise in the face of price or other controls two aspects of agents behavior become crucial in analyzing market outcomes first sellers risk will rise with increases in illegal sales but may also fall with increases in legal sales if the latter is true the parallel market price will induce higher output second if consumers can be given access to the price controlled good without incurring search queuing and other transaction costs due to rationing production of the controlled good will be higher these effects are demonstrated in both partial and general equilibrium

food preferences and nutrition in rural bangladesh t he dietary choice of households near subsistence levels of nutrient intake is one of obvious policy importance in many countries such as bangladesh national goals are set in terms of nutritional intake and there is heavy intervention in the markets for foods however little is known about the manner in which food preferences vary with food expenditure and nutrient intake the design of efficient programs to aid nutritionally deficient households in attaining minimal levels of nutrient intake requires information on all ownand cross price elasticities for both target and non target groups the net effect of a food price subsidy on the consumption of food nutrients cannot be predicted without knowledge of the complete elasticity matrix results presented below demonstrate that substitution effects can be so strong that the subsidization of certain foods quite often reduces nutrient consumption in this study demand equations for nine foods which allow for extremely flexible consumer price response are estimated from the individual budgets of 5 750 rural bangladeshi households estimation at the household level is preferred because it more readily permits the incorporation of household composition variables into the demand analysis such as household size occupation and employment status that are typically lost in aggregation there is also a greater range and variation in expenditure levels than found in grouped data this is of particular importance in the study of nutritional well being as it is the poorest households which are of special interest moreover the household sample provides sufficient degrees of freedom to estimate a simple varying parameter model which requires the estimation of 270 parameters previous econometric analysis of income class specific dietary choice has been limited and not altogether satisfactory pinstrup anderson de londono and hoover 1976 estimated complete sets of price elasticities for different income strata using frisch s scheme in order to study the impact of changes in relative prices on nutrient consumption their results are suspect because of the assumption of want independence necessary for this methodology to be valid alderman and timmer 1980 who were also concerned with studying the relationship between food price policy and nutrient intake by income classes econometrically estimated separate price coefficients for each income group by including slope dummy variables in their demand equations for rice and cassava in indonesia the inclusion of these dummy variables revealed surprisingly large differences in compensated price response across income groups although their results support the notion that poorer households respond differently to prices than the rich the limitations of their data constrained them to consider only two foods and to specify changes in price response which are discontinuous with respect to income i the formulation and estimation of the food demand equations is discussed in section ii below section iii presents the results of the estimation and discusses the nutritional implications of movements in relative food prices and other exogenous variables section iv summarizes our findings

real exchange rate fluctuations wage stickiness and tradability when we classify factors of production by their tradability the relative wage of nontraded labour influences the real exchange rate through the relative cost of distribution services we confirm this prediction using monthly data on the sector level us canada real exchange rate and the relative wage of service producing labour the relative wage accounts for 40 of the variability of the real exchange rate at a one month horizon furthermore when we use the effective nontraded labour content to classify goods into nontraded and traded ones the variability of the price of the nontraded goods basket accounts for more than half of the variability of the real exchange rate

time based competition and the privatization of services the authors develop a vertical differentiation model which exhibits congestion externalities and in which firms choose service time this model is formulated for a variety of industry and ownership structures the authors find an ownership effect in which service speeds decrease when public services are privatized this effect however could be offset and even reversed by increased efficiency of private services the authors also investigate how prices and commitment ability with respect to service times will affect the service speeds in equilibrium copyright 1995 by blackwell publishing ltd

distribution capital and the short and long run import demand elasticity the elasticity of substitution between home and foreign goods is one of the most important parameters in international economics the international macro literature which is primarily concerned with short run business cycle fluctuations assigns a low value to this parameter the international trade literature which is more concerned with long run changes in trade flows following a change in relative prices assigns a high value to this parameter this paper constructs a model where this discrepancy between the short and long run elasticities is due to frictions in distribution goods need to be combined with a local non traded input distribution capital which is good specific home and foreign goods may be close substitutes but if distribution capital is slow to adjust then agents cannot shift their consumption in the short run following a change in relative prices and home and foreign goods appear as poor substitutes in the short run in the long run this distribution capital can be reallocated and agents can shift their purchases following a change in relative prices thus the observed substitutability gets larger as time passes

endogenous quality differentiation in congested markets firms selling a product with congestion externalities to a heterogeneous population of customers have an incentive to offer differentiated levels of quality in a price competitive market differentiation arises endogenously through the prices chosen by firms in equilibrium firms offer a range of prices which induce an efficiency improving range of quality levels and allow customers to self select their preferred price quality combinations additional results suggest that with many firms in the market the choice of prices dominates the choice of service capacities in determining congestion levels copyright 1991 by blackwell publishing ltd

nonoptimality of the friedman rule with capital income taxation this paper studies the efficient taxation of money and factor income in intertemporal optimizing growth models with infinite horizons transaction costs technologies and flexible prices second best optimality calls for a positive inflation tax and a non zero capital income tax when there are restrictions on taxation of production factors or profits rents our cases of nonoptimality of the friedman rule which differ from those of mulligan and sala i martin 1997 and extend substantially those of schmitt grohe and uribe 2004a follow from the violation of the diamond and mirrlees 1971 principle on production efficiency

value of time speeding behavior and gasoline prices abstract value of time vot is a key parameter in economics and policy this paper presents an alternative method to estimate vot by analyzing an hourly dataset on drivers speeding behavior as a function of the gasoline price our identification strategy is novel as it is based on the intensive margin in comparison previous studies reveal vot on the extensive margin but choice alternatives have multiple attributes thereby potentially confounding estimates consistent with the range of the prior literature we find a vot of about 50 of the wage rate and analyze sources of bias from accidents and traffic tickets these bias functions suggest that previous stated preference vot estimates are likely downward whereas previous revealed preference estimates are likely upward biased

using revealed preferences to estimate the value of travel time to recreation sites the opportunity value of travel time vtt is one of the most important elements of the total cost of recreation day trips and arguably the most difficult to estimate most studies build upon the theoretical framework proposed by becker 1965 by using a combination of revealed and stated preference data to estimate a value of time which is uniform in all activities and under all circumstances this restriction is relaxed by deserpa s 1971 model which allows the value of saving time to be activity specific we present the first analysis which uses actual driving choices between open access and toll roads to estimate a vtt specific for recreation trips thereby providing a value which conforms to both becker s and deserpa s theoretical models using these findings we conduct a monte carlo simulation to identify generalizable results for subsequent valuation studies our results indicate that 3 4 of the wage rate provides a reasonable approximation of the average vtt for recreation trips while the commonly implemented assumption of 1 3 of the wage rate generates downward biased results

do sticky prices increase real exchange rate volatility at the sector level abstract we introduce the real exchange rate volatility curve as a useful device to understand the relationship between price stickiness and the fluctuations in law of one price deviations in the presence of both nominal and real shocks the theory predicts that the real exchange rate volatility curve is a u shaped function of the degree of price stickiness using sector level us european real exchange rate data and frequency of price changes we estimate the volatility curve and find the predominance of real effects over nominal effects good by good variance decompositions show that the relative contribution of nominal shocks is smaller at the sector level than what previous studies have found at the aggregate level consistent with significant averaging out of good specific real microeconomic shocks

how well do static indicators identify the chronically poor abstract we investigate how well the most widely used static welfare indicators perform in identifying the chronically poor we propose a normative measure of performance the cost of a given impact on chronic poverty when transfers are contingent upon a purely static indicator using longitudinal household data from rural india we find that current consumption is not always a better indicator of chronic poverty than current income both however perform much better than other common indicators such as food share and access to land

u s real exchange rate fluctuations and relative price fluctuations abstract traditional theory attributes fluctuations in real exchange rates to changes in the relative price of nontraded goods this paper studies the relation between the united states bilateral real exchange rate and the associated bilateral relative price of nontraded goods for five of its most important trade relationships we find that this relation depends crucially on the choice of price series used to measure relative prices and on the choice of trade partner the relation is stronger when we measure relative prices using producer prices rather than consumer prices the relation is stronger the more important is the trade relationship between the united states and a trade partner even in cases where there is a strong relation between the real exchange rate and the relative price of nontraded goods however a large fraction of real exchange rate fluctuations is due to deviations from the law of one price for traded goods

factor income taxation in a horizontal innovation model we consider the optimal factor income taxation in a standard r d model with technical change represented by an increase in the variety of intermediate goods in the model there are externalities both to working and to saving due to market power by firms incomplete appropriability of the benefits of inventions and the cost of economic activity in terms of public expenditures redistributing the tax burden from labor to capital will increase employment but in most cases reduce the rate of growth with conflicting effects on the deadweight loss from the externalities under plausible calibrations of the model the optimal tax rate on capital will be sizable

the value of time hypothesis and the demand for money some new evidence for the uk this paper presents some results for a version of the value of time model of the demand for money using uk date the model performs quite well and the value of time hypothesis appears to be confirmed

in search of a euro effect big lessons from a big mac meal we investigate whether the adoption of the euro was accompanied by an increase in prices in member countries and whether it promoted goods market arbitrage in the form of faster convergence to a common price by comparing the experience of eurozone countries to non euro european countries in a difference in differences specification we net out effects on prices unrelated to the euro we conclude that a there is no evidence of significant price increases associated with the adoption of the euro even for food items and b there is little systematic evidence of a significant improvement in goods market integration following the euro s introduction

welfare taxes and foreign investment abstract r d based growth models imply a positive growth effect of foreign investment through the introduction of new technologies however it has been shown that in an economy without taxes national welfare may decrease due to the transfer of profits to foreigners this paper investigates whether the introduction of a tax on profits warrants a positive welfare effect of foreign investment it is shown that the welfare effect of foreign investment may be negative due to the existence of transfers of profits to foreigners even when the domestic economy is following the optimal tax policy

accounting for real exchange rates using micro data the classical dichotomy predicts that all of the time series variance in the aggregate real exchange rate is accounted for by non traded goods in the cpi basket because traded goods obey the law of one price in stark contrast engel 1999 found that traded goods had comparable volatility to the aggregate real exchange rate our work reconciles these two views by successfully applying the classical dichotomy at the level of intermediate inputs into the production of nal goods using highly disaggregated retail price data since the typical good found in the cpi basket is about equal parts traded and non traded inputs we conclude that the classical dichotomy applied to intermediate inputs restores its conceptual value

an efficiency analysis of proposed state and local sales tax reforms 1 introductionstate and local tax policymakers face a large number of particularly severe public finance conundrums 1 one pressing long run issue is the slow but steady erosion of state and local general sales and use tax bases 2 with a few well known exceptions sales taxes are levied primarily on tangible goods 3 most services are untaxed and services have grown as a share of consumption spending 4 thus sales tax bases have declined as shares of total spending 5 at the same time legislators have increased tax rates 6 since consumers tend to substitute away from products whose relative prices have risen higher tax rates tend to exacerbate the problem they are intended to address a number of reforms designed to reduce base erosion have been proposed these include broadening tax bases transforming sales taxes to a consumption base and wholesale replacement of sales taxes with income taxes each proposal has some potential to shore up sales tax bases thus from an economic perspective the policy choice should turn on efficiency equity and simplicity effects very little quantitative information on the efficiency effects of such proposals is available this paper uses computer simulations to examine the efficiency effects of reforms designed to reduce sales tax base erosion 7trends underlying tax base erosion appear to be structural and likely to continue baumol 1967 argues there is a structural tendency for manufacturing productivity growth to exceed productivity growth in services so relative prices of manufactured goods tend to decline 8 if demands for both goods and for services are inelastic the services sector will tend to absorb ever larger fractions of resources and increase in proportion to total value added recent evidence indicates that both taxed commodities mostly tangible goods and untaxed commodities mostly services are price inelastic russo and wei 2004 everything else held constant therefore the relative price decline in manufactured goods tends to reduce their share in total spending supporting a continued shift toward services 9 since older consumers spend relatively large fractions of income on untaxed medical services aging of the population also could contribute to sales tax base erosion as a result of the interstate commerce clause remote vendors often do not collect states general sales taxes if internet sales continue to grow rapidly relative to total purchases e commerce could exacerbate the problem 10 this possibility gains support from goolsbee s empirical work his results indicate relatively large tax elasticities for internet sales goolsbee 2000a to make matters worse tax sensitivity appears to increase over time goolsbee 2000b structural sales tax reform appears unavoidable one possibility is to broaden the sales tax to more services a variation on this theme would transform the sales tax to a true consumption tax a third approach is to replace sales tax revenue with income taxes varian 2000 11 the first and second approaches attempt to shore up the sales tax base so that it adjusts automatically to shifts in the composition of spending and in the location of purchases the third approach reduces erosion by switching the tax base to one that appears less vulnerable to shifting consumption patterns each approach has features that could improve efficiency and features that could reduce it efficiency improvements could result from base broadening which would result in lower tax rates revenue held constant and reducing existing distortions due to disparate tax treatment of goods versus services and brick and mortar versus remote sales however taxing more services could reduce efficiency because firms spend substantial amounts on services fox and murray 1988 due and mikesell 1994

households willingness to pay for public housing in the presence of price controls nonmarket housing allocation mechanisms such as queueing prevent households from revealing their marginal willingness to pay for housing through market prices we derive the households marginal willingness to pay using the intuitive idea that the length of the queue for a specific house reflects the households willingness to pay for housing characteristics we apply our methodology to public housing in the amsterdam metropolitan area and show that on average the households marginal willingness to pay for a unit of public housing is close to its marginal costs this suggests that the welfare loss of public housing through distortions in housing supply is rather limited and is mainly through distortions in housing demand we provide indirect evidence of the latter by showing that queueing induces inefficient matching of households and housing

redistributive taxation in a simple perfect foresight model abstract we investigate the redistributive potential of capital taxation in an intertemporal maximizing model of capital formation first even unanticipated redistributive capital taxation is severely limited in its effectiveness since it depresses wages second under any convergent redistributive tax policy which maximizes a paretian social objective the capital income tax will converge to zero independent of the factor supply elasticities these results are independent of workers holdings of capital

optimal inflation persistence ramsey taxation with capital and habits ramsey models of fiscal and monetary policy featuring time separable preferences and a fixed supply of capital predict highly volatile inflation with no serial correlation in this paper we show that an otherwise standard ramsey model that incorporates capital accumulation and habit persistence predicts highly persistent inflation the result depends on increases in either the ability to smooth consumption or the preference for doing so the effect operates through the fisher relationship a smoother profile of consumption implies a more persistent real interest rate which in turn implies persistent optimal inflation our work complements a recent strand of the ramsey literature based on models with nominal rigidities in these latter models inflation volatility is lower than in the baseline model but continues to exhibit little persistence we quantify the effects of habit and capital on inflation persistence and also relate our findings to recent work on optimal fiscal policy with incomplete markets

on what states do prices depend answers from ecuador in this paper we argue that differences in the cost structure across sectors play an important role in the decision of firms to adjust their prices we develop a menu cost model of pricing in which retail firms intermediate trade between producers and consumers an important facet of our analysis is that the labor cost share of retail production differs across goods and services in the consumption basket for example the price of gasoline at the retail pump is predicted to adjust more frequently and by more than the price of a haircut due to the high volatility in wholesale gasoline prices relative to the wages of unskilled labor even when both retailers face a common menu cost this modeling approach allows us to account for some of the cross sectional differences observed in the frequency of price adjustments across goods we apply this model to ecuador to take advantage of inflation variations and the rich panel of monthly retail prices

estimating the demand for calories in india this article examines the long run relationship between per capita calorie intake per capita income and food prices using aggregate data for india 1961 1992 cointegration analysis yields an income elasticity of calorie intake of 0 34 while the food price elasticity is insignificant thus economic growth in india as measured by increasing per capita income has significantly improved calorie intake future income growth can alleviate further inadequate nutrition however significant improvements in calorie intake cannot be made directly by food subsidies a further result is that calorie intake is granger caused by income and not vice versa income generation is unconstrained by calorie intake

dynamic pricing through discounts for optimizing multiple class demand fulfillment in a multiple customer class model of demand fulfillment for a single item we consider the use of dynamic price discounts to encourage backlogging of demand for customer classes denied immediate service customers are assumed to arrive over several stages in a period and customer classes are distinguished by their contractual price and sensitivity to discounts through dynamic programming we determine the optimal discounts to offer assuming a linear model for the sensitivity of customers to such inducements we show that customers are served in class order and allocation of inventory to demand is determined by considering the current number of customers backlogged as well as the current inventory position through comparison to a naive supplier allocating inventory first come first served with no discounting we show that profits are primarily influenced by the allocation of capacity and the use of price discounts primarily benefits the second class customers overall fill rate heuristics for implementation of the solution in real time settings are given

endogenous market structures and optimal taxation this article provides optimal labour and dividend income taxation in a general equilibrium model with oligopolistic competition and endogenous firms entry in the long run the optimal dividend income tax corrects for inefficient entry the dividend income tax depends on the form of competition and the nature of the sunk entry costs in particular it is higher in market structures characterised by competition in quantities rather than those characterised by price competition oligopolistic competition leads to an endogenous countercyclical price markup as a result offsetting the distortions over the business cycle requires deviations from full tax smoothing

the welfare cost of rationing by queuing across markets theory and estimates from the u s gasoline crises governments sometimes impose price controls and nonprice rationing by queuing profit seeking firms occasionally ration by putting their customers on allocation following barzel 1974 and deacon and sonstelie 1985 we take the decision to ration as a given and analyze it employing standard microeconomics and applied welfare economics this paper adds to the literature by focusing on optimally rationing a good across markets further we estimate the actual welfare cost of improper allocation across markets in the u s gasoline crises of 1973 1974 and 1979

allocation of goods through non price mechanisms evidence on distribution by willingness to wait abstract this paper discusses a model of market clearing when prices are rigid the estimated model is one in which the waiting time necessary to obtain the scarce goods brings the excess demand in line with current supply in a manner of a flexible price the mechanism of such a market has been discussed by barzel and by nichols smolensky and tideman but little empirical evidence has been reported estimation of consumer demand in such a market is presented here heckman s approach to truncated sample estimation has been employed the approach allows modelling of time costs as a two part tariff the results confirm that consumer s response to waiting time is measurable and in the same order of magnitude as expected from response to changes in prices the study also indicates that rationing by willingness to wait does not necessarily distribute goods to the poor

rationing by waiting lists an empirical investigation abstract many social systems rely on a waiting list rather than price as a rationing device we present a model of the waiting list for elective surgery in the british national health service waiting time is allowed to influence both supply of and demand for surgery the resulting models of supply and demand are estimated empirically using over 4000 observations the results indicate low elasticity of demand with respect to waiting time suggesting that increased resources may reduce waiting times without greatly stimulating utilization the policy implications are important for the british national government when choosing the level of public expenditure to be devoted to health care

on the coverage of public employment schemes for poverty alleviation abstract the cost effectiveness of public employment as a means of poverty alleviation depends on policy design choices concerning coverage and wage rates the choice is between schemes which aim for wide coverage at potentially low wages and schemes which ration participation so that more beneficiaries can escape poverty conditions are derived for ranking stylized policy alternatives in terms of a broad class of poverty measures the preferred policy is shown to depend on the budget level administrative cost the initial wage distribution and the policy maker s aversion to poverty empirical simulations for bangladesh data generally support wide coverage for distributionally sensitivity poverty measures but limited coverage for other measures

an efficiency and welfare classification of rationing by waiting in the presence of bribery abstract governments often allocate commodities at low prices and on a first come first served basis rationing by waiting while bureaucrats who distribute the commodities usually take bribes a model is developed to classify the efficiency implications of bribery and socially optimal pricing schemes in rationing by waiting if the rationed good and individual income spent on other goods other income are complements then bribery may enhance allocative efficiency and a dual pricing scheme can augment social welfare however if the rationed commodity and other income are substitutes then bribery may not improve allocative efficiency and distributing the rationed commodity free is socially optimal

price controls and rent seeking behavior in developing countries abstract when the price of a good is controlled a nonprice allocation rule must necessarily be substituted for allocation by price examples are first come first served allocation which gives rise to rationing by waiting and allocation by an explicit system of ration coupons with rationing by waiting consumers are induced to pursue activities that economize on waiting costs such as buying a larger quantity per purchase although such responses are individually rational they are socially self defeating in the sense that they lower equilibrium consumer welfare rationing by coupons can avoid some but typically not all of these losses these ideas are developed with examples of model economies and their practical relevance is illustrated with evidence from developing countries

business cycles and the relationship between concentration and price cost margins using a newly constructed panel data base we examine changes in price cost margins in 284 manufacturing industries between 1958 and 1981 a key finding is a dramatic narrowing of the spread between the margins of concentrated and unconcentrated industries over this period we provide evidence that this narrowing is a result of the greater sensitivity of price cost margins in more concentrated industries to demand fluctuations this finding is robust to the inclusion of other industry variables and to measures of import competition the results indicate that cross sectional estimates of the concentration margins relationship are likely to be both biased and misleading

gas wars retail gasoline price fluctuations this paper examines the retail gasoline price fluctuations known as gas wars weekly prices for the los angeles area were examined for the period from january 2 1968 through december 23 1975 the observed fluctuations were remarkably regular and apparently large ly predictable the data appear consistent with the recent game theory model of e maskin and j tirole in which competing firms produce edgeworth cycles by undercutting each other and eventually relenting copyright 1993 by mit press

taxation of economic rents economic rents have long been identified as an efficient tax base in addition the recent literature documents that rent income is highly concentrated and that rents are quickly increasing rent taxation thus seems attractive for reasons of both efficiency and equity nevertheless rent taxation remains a marginal topic in research and policy making in a systematic review of the neoclassical literature on different rent types we find that some types of rents reflect inefficiencies and should thus be minimized while others reward investments and should be supported in line with social welfare what remains for taxation are land rents one of the few true scarcity rents land rents have significant potential to improve the efficiency of the tax system we then begin to develop a comprehensive theory of land rent taxation by identifying relevant efficiency and equity effects the interaction of many of these effects remains unexplored which might explain policymakers hesitation in using land taxes to date

global versus local shocks in micro price dynamics a number of recent papers point to the importance of distinguishing between the price reaction to macro and micro shocks we emphasize instead the importance of distinguishing between global and local shocks we exploit a panel of 276 micro price levels collected on a semi annual frequency over two decades in 59 countries around the world that enables us to distinguish between different types global and local of macro and micro shocks we find that global macro and micro shocks are always associated with a slower response of prices than the respective local shocks focusing on structural monetary macro shocks we show that prices reach their long run value much slower in response to a global macro shock as compared to the time it takes for prices to reach their long run value in response to a local macro shock

the importance of asymmetric tax policy and dangers of aggregation existing tax policies have many complex features that make distinctions across goods factors and financial structures that distort economic allocations their importance is ignored when tax policy is summarized by an effective tax rate in fact the losses due to asymmetries are often larger than the losses due to the level of taxation

capital income taxation with imperfect competition a key feature of modern dynamic economies is imperfect competition some imperfect competition is due to institutions such as patents and copyrights that allow firms to exercise market power over the sale of products they invent some imperfect competition is due to various forms of increasing returns to scale and product differentiation since market power is an essential feature of innovation and growth in the new economy as it was in the old economy we need to know how imperfect competition affects the conventional wisdom on tax policy i argue that it has particularly striking implications for the taxation of capital the current consensus among economists is

time is money improved valuation of time and transportation costs the proper valuation of time isimportant for estimating the demand for severaleconomic goods this paper explores the propervaluation of time when estimating recreationaldemand where time costs represent asubstantial portion of the purchase price toestimate demand this paper uses a travel costframework to analyze actual behavior revealedpreference data and hypothetical behavior stated preference data which is induced byhypothetical increases in access fees traveltime and travel distance by comparing theresponses to these three contingencies theanalysis adjusts and improves the valuation oftime costs as evidence of this improvement this analysis demonstrates a great increase inthe consistency between the revealed and stateddata similarly this paper improves thevaluation of transportation related costs

border prices and retail prices abstract we analyze retail prices and at the dock import prices of specific items in the bureau of labor statistics bls cpi and ipp databases using both databases simultaneously to identify items that are identical in description at the dock and when sold at retail this identification allows us to measure the distribution wedge associated with bringing traded goods from the point of entry into the united states to their retail outlet we find that overall u s distribution wedges are 50 70 around 10 to 20 percentage points higher than that reported in the literature we discuss the implications of this for measuring the size of the pure tradeables sector exchange rate pass through and real exchange rate determination we find that distribution wedges are very stable over time but there is considerable variation across items there is some variation across the country of origin for the imported item for our major trading partners but not as much as the cross item variation we also investigate the determinants of distribution wedges finding that wedges do not vary systematically with exchange rates but are related to other features of the micro data

parental and social valuations of child health information abstract we construct an endogenous risk model of the influence of more precise hazard information on the parental demand for child health a 256 observation data set is used to estimate the marginal value to parents and to society of risk information about the future consequences of children s body lead burdens our results indicate that the social value of risk information greatly exceeds the cost of providing it and that parents will purchase too little of this information

real exchange rates and primary commodity prices abstract in this paper we show that there is substantial comovement between prices of primary commodities such as oil aluminum maize or copper and real exchange rates between developed economies such as germany japan and the united kingdom against the us dollar we therefore explicitly consider the production of commodities in a two country model of trade with productivity shocks and shocks to the supply of commodities we calibrate the model so as to reproduce among other things the volatility and persistence of primary commodity prices and show that it delivers equilibrium real exchange rates that are as volatile and persistent as they are in the data the model rationalizes an empirical strategy to identify the fraction of the variance in real exchange rates that can be accounted for by the underlying shocks even if those shocks are not observable we use this strategy to argue that shocks that move primary commodity prices account for a large fraction of the volatility of real exchange rates in the data our analysis implies that existing models used to analyze real exchange rates between large economies that mostly focus on trade between differentiated final goods could benefit in terms of matching the behavior of real exchange rates by also considering trade in primary commodities

self selection and the redistributive impact of in kind transfers an econometric analysis self targeting welfare programs have received increasing attention from economists and policymakers alike this paper provides evidence on the redistributive impact of transferring low quality goods in kind i study a school feeding program in jamaica which distributes a bland snack to all students poorer households and those with a greater number of eligible children are found significantly more likely to self select into the program but against these targeting benefits is a large estimated dead weight loss

the value of time and the transactions demand for money this paper reexamines the hypothesis of dean s dutton and william p gramm and edi karni that the wage rate influences the demand for money as a proxy for the value of transactions time it develops value of time transactions models which yield demand for money equations that have a real wage rate argument and compares it to a non value of time alternative that does not the author finds that the value of time models perform well and that the value of time effect is empirically significant copyright 1990 by ohio state university press

the value of time and the effect of fines on child car safety seat usage we report the results of a survey on child car safety seat usage and test the hypothesis that the opportunity cost of time is a significant determinant of proper seat use we find that parents with high wage rates are less likely to properly use a car seat we predict that a fine of 1775 along with a certainty of being apprehended once in a four year period would be needed to induce 95 compliance with child car safety seat laws

optimal taxation and spending in general competitive growth models abstract we find that the optimal long run tax on capital income is zero even if the capital stock does not converge to a steady state nor to a steady state growth rate the optimal tax on human capital is also zero if human capital is not a final good but the long run wage tax is not generally zero we argue that consumption tax proposals such as the flat tax are not consumption taxes and are biased against human capital

multiproduct monopoly a queueing approach using queuing theory to model traditional market structures can provide interesting insights into the underlying mechanisms many characteristics of markets are well known but queuing models often illustrate these in a novel manner a stochastic model of multiproduct monopoly with impatient consumers is developed the model explicitly allows for congestion effects a monopoly that offers two services distinguished only by a time element that is where two distinct service rates apply is considered two different classes of consumer are considered according to their waiting time tolerances given assumptions about dynamic consumer choice behaviour queuing theory techniques are used to derive market share and effective demand details for each class of consumer in terms of the firm s pricing quality and processing speed policy economic analysis is performed allowing for the possibility of offering a reward when the consumer has to face a long queue the economic summary provided forms the basis of a

using mandated speed limits to measure the value of a statistical life in 1987 the federal government permitted states to raise the speed limit on their rural interstate roads but not on their urban interstate roads from 55 mph to 65 mph since the states that adopted the higher speed limit must have valued the travel hours they saved more than the fatalities incurred this institutional change provides an opportunity to estimate an upper bound on the public s willingness to trade off wealth for a change in the probability of death our estimates indicate that the adoption of the 65 mph limit increased speeds by approximately 4 percent or 2 5 mph and fatality rates by roughly 35 percent together the estimates suggest that about 125 000 hours were saved per lost life when the time saved is valued at the average hourly wage the estimates imply that adopting states were willing to accept risks that resulted in a savings of 1 54 million 1997 dollars per fatality with a sampling error roughly one third this value we set out a simple model of states decisions to adop

what is the optimal speed limit on freeways abstract when choosing his speed a driver faces a trade off between private benefits time savings and private costs fuel cost and own damage and injury driving faster also has external costs pollution adverse health impacts and injury to other drivers this paper uses large scale speed limit increases in the western united states in 1987 and 1996 to address three related questions first do the social benefits of raising speed limits exceed the social costs second do the private benefits of driving faster exceed the private costs third what is the optimal speed limit i find that a 10 mph speed limit increase on highways leads to a 3 4 mph increase in travel speed 9 15 more accidents 34 60 more fatal accidents and elevated pollutant concentrations of 14 24 carbon monoxide 8 15 nitrogen oxides 1 11 ozone and 9 higher fetal death rates around the affected freeways using these estimates i find that the social costs of speed limit increases are two to seven times larger than the social benefits in contrast many individual drivers would enjoy a net private benefit from driving faster privately a value of a statistical life vsl of 6 0 million or less justifies driving faster but the social planner s vsl could be at most 0 9 2 0 million to justify higher speed limits i conclude that the optimal speed limit was lower but not much lower than 55 mph

is there curvature in the slutsky matrix d o the poor substitute among commodities more flexibly than the rich when relative prices change even when compensated for the income effects of the price changes is it necessary to add a third dimension to the slutsky substitution matrix to identify household income in short do the terms of the slutsky elasticity matrix curve smoothly from poor households to rich households in such a way that equation 1 is meaningful

the value of time and recent u s money demand instability much controversy has surrounded the u s money demand relationship or more precisely its stability this is rather disappointing in light of the central importance of money demand estimates for the formulation and implementation of effective monetary policy and for almost all theories of aggregate economic activity to date the vast majority of alternative money demand specifications have generally failed to produce a stable money demand function throughout the 1970s and 1980s

the welfare costs of price controls for cars and color televisions in poland contrasting estimates of rent seeking from recent experience the welfare costs of price controls can vary enormously depending on the method of allocating the goods in shortage and the possible rent seeking costs that may result with full rent dissipation the welfare loss from price controls on polish color televisions in 1989 was about ten times the standard estimates of distortion costs which ignore rent seeking and was more than 100 percent of the value of domestic producers sales the methods of allocating cars however did not result in rent seeking costs the domestic price controls were an unintended implicit subsidy to imports subsidies for cars were estimated at 43 percent and for color televisions at 22 percent

accounting for incomplete pass through recent theoretical work has suggested a number of potentially important factors in causing incomplete pass through of exchange rates to prices including markup adjustment local costs and barriers to price adjustment we empirically analyze the determinants of incomplete passthrough in the coee industry the observed pass through in this industry replicates key features of pass through documented in aggregate data prices respond sluggishly and incompletely to changes in costs we use microdata on sales and prices to uncover the role of markup adjustment local costs and barriers to price adjustment in determining incomplete pass through using a structural oligopoly model that nests all three potential factors the implied pricing model explains the main dynamic features of short and long run pass through local costs reduce long run pass through by a factor of 59 relative to a ces benchmark markup adjustment reduces pass through by an additional factor of 33 where the extent of markup adjustment depends on the estimated super elasticity of demand the estimated menu costs are small 0 23 of revenue and have a negligible eect on long run pass through but are quantitatively successful in explaining the delayed response of prices to costs we nd that delayed passthrough in the coee industry occurs almost entirely at the wholesale rather than the retail level

a comparison of user benefits and costs of nature conservation at three nature reserves willis k g and benson j f 1988 a comparison of user benefits and costs of nature conservation at three nature reserves reg studies 22 417 228 benefits from conserving wildlife at three sites of special scientific interest are estimated using a travel cost method recording demand in terms of actual site visits these benefits are compared to the costs of nature conservation both the financial cost which is or could be incurred under the wildlife and countryside act 1981 and also the social costs of the agricultural output forgone after protective tariffs and subsidies of the common agricultural policy have been removed willis k g et benson j f 1988 une comparaison des avantages et des couts de la defense de l environnement aux usagers a trois reserves naturelles reg studies 22 417 228 on estime les avantages de la protection de la faune a trois sites d inter t scientifique special a partir d une methode qui calcule les frais de trajet enregistrant la demande en fonction des visi

the welfare cost of factor taxation in a perfect foresight model this paper examines the marginal efficiency cost of various factor taxes in a dynamic general equilibrium model the au thor solves for the excess burden of anticipated and unanticipated t emporary and permanent tax policies using a range of estimates for taste and technology parameters he finds excess burdens larger than those indicated by previous studies that use static models these exc ess burdens are sensitive to parameter values and timing however th e rankings of alternative tax policies turn out to be insensitive to structural parameter values copyright 1987 by university of chicago press

accounting for u s real exchange rate changes this study measures the proportion of u s real exchange rate movements that can be accounted for by movements in the relative prices of nontraded goods the decomposition is done at all possible h

household commodity production and social harassment costs in a seminal article becker 2 suggested that consumer behavior be viewed as a process in which households produce commodities meals plays and so on by combining goods or services food theatre tickets and so on and time households are perceived in that model as utility maximizing producers in effect becker s model demonstrates that money prices of goods or services do not provide sufficient information to explain or predict household choice more specifically money prices of goods or services do not reflect the full costs of household produced commodities because money prices exclude the costs of the household s time spent in the production of such commodities mincer 7 showed that unless the costs of time are considered the income elasticities of demand for different commodities are biased abbott and ashenfelter 1 have established the theoretical conditions for household utility maximizing expenditures of income and time wales and woodland 9 assumed that households maximize utility functions which include leisure and a hicksian composite good the budget constraint is written in terms of wage rates the price of the composite good nonlabor income the total number of hours available and the full income of the household consistent with the becker model kohlhase 5 constructed simultaneous constraints in which the income and time constraints are reduced to a full income constraint under the assumption that households buy back the leisure time and commuting time of market workers at the market wage rates and deacon and sonstelie 4 analyzed a natural situation in which for a short time motorists were faced with a choice between a waiting in line for low priced gasoline or b not waiting and purchasing gasoline of a similar quality at a higher price by surveying customers at one low priced station and at two nearby high priced stations they were able to estimate the costs of time for people in both groups they found that in general estimates of the costs of time were similar to the after tax wages of respondents thereby providing additional evidence that the money price does not always convey sufficient information to predict household choice

transportation fuels policy since the opec embargo paved with good intentions a long line of research investigates whether the retail prices of electricity and natural gas send proper signals about scarcity in order to induce efficient consumption historically regulated utilities have not designed tariffs that set marginal prices equal to marginal costs currently some jurisdictions are opening the retail sectors to competition via retail choice these new regimes replace imperfect regulation with imperfect competition as the process by which retail tariffs are formed we discuss the challenges in evaluating the efficiency of tariffs and present evidence of how pricing has changed in markets with retail choice

the welfare costs of rationing by waiting with price controls and rationing by waiting rational consumers increase the quantity boughtperpurchase this individually rational response is socially wasteful and the cost of making it is a deadweight loss this cost plus the value of time spent in queues may exceed the total rent transferred from suppliers to consumers by price controls i e the value of resources spent competing for the rent may exceed the rent itself this point is illustrated by an empirical application to gasoline price controls rent seeking exhausts an estimated 116 percent of the rent trangerred the efficiency of the price system is often illustrated lby pointing to the obvious wastes associated with alternative allocation mechanisms for example the queues that accompany price controls and first come first served allocations although rationing by waiting wastes resources in a dramatically visible fashion the magnitude of the waste and the factors that determine it seldom have been examined empirically moreover existing theory on the subject is incomplete unless the first come first served rule is precisely specified consumers will compete for available supplies in ways other than waiting in the model developed below queues cause consumers to compete by increasing amounts bought per trip to the market the analysis demonstrates that such individually rational adjustments only increase the welfare cost of rationing by waiting and thus are socially self defeating the theoretical model is illustrated empirically by estimating the welfare costs of a market wide ceiling on gasoline prices this application was motivated by the availability of two key pieces of information the value of time spent in gasoline queues and the effect of waiting lines on amounts bought per purchase this information was obtained from a survey of motorists conducted during the era of federal gasoline price regulations to focus on competition among consumers one of the inefficiencies that results from price controls is ignored the supply reduction leading to the

optimal taxation with imperfect competition and aggregate returns to specialization in this paper we explore the proposition that in economies with imperfect competitive markets the optimal capital income tax is negative and the optimal tax on firms profits is confiscatory we show that if the total factor productivity as well as the measure of firms or varieties are endogenous instead of fixed then the optimal fiscal policy can lead to different results the government faces a trade off between the fixed costs that the society pays for the

dynamic scoring a back of the envelope guide abstract this paper uses the neoclassical growth model to examine the extent to which a tax cut pays for itself through higher economic growth the model yields simple expressions for the steady state feedback effect of a tax cut the feedback is surprisingly large for standard parameter values half of a capital tax cut is self financing the paper considers various generalizations of the basic model including elastic labor supply general production technologies departures from infinite horizons and non neoclassical production settings it also examines how the steady state results are modified when one considers the transition path to the steady state