a theory of commerce abstract the theory of commerce advanced here captures prominent features of retail trade large employment congestion effects anonymous posted prices and quantity discounts this theory is built around a directed search model where buyers preferences are private information the analytical solution is easily inserted in a neoclassical growth framework in this framework the parameters of retail trade are calibrated using commercial margins and employment welfare properties depend on the sellers ability to charge two tier prices with two tier prices the directed search equilibrium is efficient otherwise it is not this contrasts with the full information benchmark where directed search is always efficient

addiction compulsion and the technology of consumption the consumption technology model of lancaster and becker is extended to include addictive activities assuming a utility function in which the individual places a premium on maintenance of self esteem the model generates empirically verified patterns of habituation withdrawal and the compulsive restarting of an abandoned habit it is then applied to the analysis of public policies toward drug abuse their frequent ineffectiveness is shown to result from an unwarranted emphasis on deterring the addictive activity rather than on encouraging atceptable behavior

money and capital abstract the effects of money anticipated inflation on capital formation is a classic issue in macroeconomics previous papers adopt reduced form approaches putting money in the utility function or imposing cash in advance but using otherwise frictionless models we follow instead a literature that tries to be explicit about the frictions making money essential this introduces new elements including a two sector structure with centralized and decentralized markets stochastic trading opportunities and bargaining these elements matter quantitatively and numerical results differ from findings in the reduced form literature the analysis also reduces a gap between microfounded monetary economics and mainstream macro

the optimal mechanism for selling to a budget constrained buyer abstract this paper finds an optimal mechanism for selling a good to a buyer who may be budget constrained we consider a seller with one unit of a good facing a buyer with a quasilinear utility function if the buyer does not face a binding budget constraint textbook monopoly pricing is optimal by contrast the possibility of a binding budget constraint can make it optimal for the seller to use nonlinear pricing to commit to a declining price sequence to require the buyer to disclose his budget or to offer financing journal of economic literature classification numbers c70 d42 d45 d89 l12

collusive pricing patterns in the us airline industry abstract we formulate two empirical tests for collusive behavior based on the theoretical insights of werden and froeb 1994 and athey bagwell and sanchirico 2004 the first predicts that colluding firms will reduce pair wise differences in prices within a market if demand satisfies certain properties the second predicts that colluding firms will sacrifice efficiency in production by increasing price rigidity to avoid informational costs using panel data from the us airline industry and fixed effects estimation we find that greater multimarket contact between carriers leads to pricing patterns consistent with both theoretical predictions while code share agreements are consistent with the second prediction

wealth as a signal in the search model of money this article investigates the possibility that wealth holdings of money serves as a signal of the ability to produce high quality products for agents who cannot directly observe the quality of the products a producer s wealth may advertise past success in selling products to agents who knew the producer s ability and thus signal its ability this analysis shows that such signaling effects may arise in equilibrium and may lead to more unequal distributions of wealth and lower welfare than would otherwise arise

the effect of physician advice on alcohol consumption count regression with an endogenous treatment effect although there are encouraging trends alcohol abuse continues to be a significant public health problem econometric studies of alcohol demand have yielded a great deal of information for alcohol abuse prevention policy these studies suggest that higher alcohol taxes and stricter drunk driving policies can reduce heavy drinking and drunk driving in this paper we explore the role physician advice plays in the campaign to prevent alcohol related problems compared to alcohol taxation physician advice is a more precisely targeted intervention that does not impose extra costs on responsible drinkers compared to the resource costs of arresting processing and punishing drunk drivers physician advice may be a lower cost intervention to provide a basis for alcohol policy analysis we use an alcohol demand framework to test whether physician provided information about the adverse consequences of alcohol abuse shifts demand to more moderate levels there are three aspects of our alcohol demand model that complicate the estimation 1 the dependent variable is non negative it is a count variable number of drinks consumed 2 a non trivial number of sample observations have zero values for the dependent variable and 3 because the data we use is non experimental the treatment variable indicating receipt of advice from a physician may be endogenous we implement an estimation method that is specifically designed to deal with these three complicating factors our results show that advice has a substantial and significant impact on alcohol consumption by males with hypertension and that failing to account for the endogeneity of advice masks this result copyright 2001 john wiley sons ltd

safety investments behaviours and injury severity this study investigates whether recreational boating safety investments and behaviours of current interest are determinants of boating injury severity and if so their effects an ordered probit analysis of 1989 1993 boating accidents suggests that human capital investments in safety in the form of operator boating experience and formal instruction reduce both operator and passenger injury severity higher levels of operator passenger alcohol consumption increase operator passenger injury severity but no relationship was found between operator alcohol consumption and passenger injury severity at the time a trip is taken wearing a flotation device has the most efficacious effect on both operator and passenger injury severity in general the results support regulatory policies aimed at increasing the use of personal flotation devices as well as reducing alcohol consumption

reducing drunken driving which policies are most effective traffic fatalities are the leading cause of accidental deaths and the leading cause of all deaths for people between the ages of 16 and 25 4 a major cause of traffic accidents is drunken driving reed 12 estimates that the annual number of deaths could be reduced by 12 000 if all drunken driving were eliminated recently increased attention has been directed toward finding ways to reduce the incidence of drunken driving this paper evaluates the relative effectiveness of several policies in terms of reduced fatalities these policies include raising the minimum legal drinking age increasing legal sanctions and enforcement and increasing the price and reducing the availability of alcoholic beverages most studies have focused on a single policy studies by cook 3 mccornac 7 and williams et al 16 examined the effect of raising the minimum legal drinking age their results indicate that auto fatalities have fallen in states where the minimum legal drinking age has been increased ross 13 and votey 15 both examined the drunken driving deterrence policies in scandanavian countries ross was unable to show that they had any effect on behavior using a more sophisticated model votey concluded that the severe deterrence policies reduced the incidence of drunken driving cook and tauchen 2 found that increasing taxes on alcoholic beverages reduced consumption and led to fewer auto fatalities and a lower incidence of cirrhosis death

belief based refinements in signalling games abstract there are many economic problems which when modelled as games of incomplete information give rise to many sequential equilibria severely limiting the usefulness of the model there has recently been a large literature devoted to refining the set of equilibria in order to reduce this multiplicity by restricting the set of admissible disequilibrium beliefs this paper argues that the logical foundations of some refinements and the equilibria they focus on are problematic and further proposes an alternative refinement that avoids the difficulties we also provide an existence theorem covering a broad class of signalling games often studied in economics journal of economic literature classification numbers c72 c70 d82

inflation and welfare in a monetary economy it is in everyone s private interest to try to get someone else to hold non interest bearing cash and reserves but someone has to hold it all so these efforts must simply cancel out all of us spend several hours per year in this effort and employ thousands of talented and highly trained people to help us these person hours are simply thrown away wasted on a task that should not have to be performed at all

facilitating practices the effects of advance notice and best price policies even if firms in a market choose discount prices noncooperatively the use of most favored customer and meet or release contracts enables those firms to adopt quantity choice strategies consequently there can be a range of list prices that are impervious to unilateral nonselective discounts but this range does not include prices above the level determined in a cournot equilibrium the practice of advance public notification of list price increases can facilitate the establishment of such supracompetitive list prices as was argued in the recent ftc ethyl case the possibility of offering discounts selectively results in a much more competitive situation

price discrimination in the airline market the effect of market concentration we test the hypothesis that price discrimination increases with competition in the airline market using a large cross section of tickets offered by several carriers on various routes we approximate price discrimination with marginal implicit prices of ticket restrictions that carriers typically use to price discriminate saturday night stayover re quirements and advanced purchase discounts we find that the restrictions are associated with lower airfares but that the discounts are smaller on routes with higher market concentration the results suggest that price dispersion attributed to ticket restrictions increases as markets becomemore competitive

competitive search equilibrium in this paper i construct an equilibrium for markets with frictions which is competitive in the sense that all agents are price takers and maximize utility subject to a set of market parameters i show that the equilibrium allocation is socially optimal i also show how the competitive search equilibrium can be achieved if employers with vacancies can advertise publicly the wages they pay

do drinkers know when to say when an empirical analysis of drunk driving this paper presents empirical evidence that an individual s decision to drive while drunk is negatively affected by the expected full price of driving drunk the analysis usa a unique data set containing information on self reported drunk driving matched to state level drunk driving policies as well as to state excise taxes on beer these are hypothesized and found to affect drunk driving further we find interesting racial differences but surprisingly small differences by gender in the effect of socioeconomic and policy variables on drunk driving propensities

rational addiction and the effect of price on consumption legalization of such substances as marijuana heroin and cocaine surely will reduce the prices of these harmful addictive drugs by the law of the downward sloping demand function their consumption will rise but by how much according to conventional wisdom the consumption of these illegal addictive substances is not responsive to price however conventional wisdom is contradicted by becker and murphy s 1988 theoretical model of rational addiction the becker murphy b m analysis implies that addictive substances are likely to be quite responsive to price in this paper we summarize b m s model of rational addiction and the empirical evidence in support of it we use the theory and evidence to draw highly tentative inferences concerning the effects of legalization of currently banned substances on consumption in the aggregate and for selected groups in the population addictive behavior is usually assumed to involve both reinforcement and tolerance reinforcement means that greater past consumption of addictive goods such as drugs or cigarettes increases the desire for present consumption but tolerance cautions that the utility from a given amount of consumption is lower when past consumption is greater these aspects of addictive behavior imply

money and product quality under asymmetric information this article examines the effects of money on product quality as well as the price pattern of heterogeneous quality goods in a search theoretical monetary model with divisible money and divisible commodities we establish the existence and uniqueness multiplicity of monetary equilibrium in several different cases the steady state equilibrium of our model displays several properties that are absent or distinct from those of previous studies in particular we find that under egalitarian bargaining the friedman rule cannot achieve socially efficient allocation due to asymmetric information we find that the price of informed high quality goods is higher than the price of uninformed quality goods we also find that an increase in inflation can improve product quality jel e40

did the airline tariff publishing case reduce collusion abstractin december 1992 the u s department of justice filed suit against eight major domestic airlines and the airline tariff publishing atp company in order to reduce opportunities for collusion in the industry the lawsuit ended with consent decrees limiting the ability of airlines to communicate surreptitiously through the shared fare database this paper measures the effects of the litigation and its settlement on industry performance comparing changes in outcomes between market segments that were more and less likely to be affected by the atp case prices fell in response to the investigation but increased following the settlement while the number of tickets sold in affected markets declined the importance of multimarket contact also declined and then recovered the atp case had at best a temporary effect on airline collusion

can police deter drunk driving economic studies using aggregate data generally find that higher taxes are the most effective policy to reduce drunk driving while criminologists report strong evidence supporting law enforcement measures in policy evaluations this paper evaluates these differing perspectives using the aggregate data that is typically used in the economic literature ols and fixed effects models show that police can affect the probability of arrest for drunk driving and in combination with evidence from dui deterrence experiments this suggests that the failure of economic models to detect deterrence reflects the lack of systematic and sustained police efforts against dui

barter and monetary exchange under private information the authors develop a model of production and exchange with uncertainty concerning the quality of commodities and study the role of fiat money in ameliorating frictions caused by private information the model is specified so that without private information only high quality commodities are produced and there is no welfare gain from using money with private information there can be equilibria and sometimes multiple equilibria where low quality commodities are produced and money can increase welfare money works by promoting useful production and exchange in efficient monetary equilibria agents adopt strategies that increase the probability of acquiring high quality output copyright 1994 by american economic association

inflation output and welfare this paper studies the effects of anticipated inflation on aggregate output and welfare within a search theoretic framework we allow money holders to choose the intensities with which they search for trading partners so inflation affects the frequency of trade as well as the quantity of output produced in each trade we consider the standard pricing mechanism for search models i e ex post bargaining as well as a notion of competitive pricing if prices are bargained over the equilibrium is generically inefficient and an increase in inflation reduces buyers search intensities output and welfare if prices are posted and buyers can direct their search search intensities are increasing with inflation for low inflation rates and decreasing for high inflation rates the friedman rule achieves the first best allocation and inflation always reduces welfare even though it can have a positive effect on output for low inflation rates

sticky prices a new monetarist approach why do some sellers set nominal prices that apparently do not respond to changes in the aggregate price level in many models prices are sticky by assumption here it is a result we use search theory with two consequences prices are set in dollars since money is the medium of exchange and equilibrium implies a nondegenerate price distribution when the money supply increases some sellers may keep prices constant earning less per unit but making it up on volume so profit stays constant the calibrated model matches price change data well but in contrast to typical sticky price models money is neutral jel e52 e31 e42

a divisible search model of fiat money this paper extends the kiyotaki wright search model of fiat money to allow for divisible money and goods the extension allows me to examine the standard issues in monetary economics such as the neutrality and superneutrality of money by severing the artificial link in the kiyotaki wright model between the money supply and the number of money holders it is shown that money is neutral but not superneutral money growth generates a trading opportunity effect it changes the fraction of different agents in the economy and hence changes the probability with which agents have a successful match in addition money growth has a negative effect on the real money balance that is familiar in walrasian monetary models the balance of the two effects can imply a positive optimal money growth rate

search money and inflation under private information abstract i study monetary exchange and inflation when buyers have private information about their willingness to pay for certain goods introducing imperfect information in the lagos wright a unified framework for monetary theory and policy analysis j polit economy 113 3 2005 463 484 economy shows that the existence of monetary equilibrium is a more robust feature of the environment in general my model has a monetary steady state in which only a proportion of the agents hold money agents who do not hold money cannot participate in trade in the decentralized market the proportion of agents holding money is endogenous and depends negatively on the level of expected inflation as in lagos and wright s model in equilibrium there is a positive welfare cost of expected inflation but the origins of this cost are very different

does multimarket contact facilitate tacit collusion inference on conduct parameters in the airline industry we provide empirical evidence that multimarket contact facilitates tacit collusion among airlines using a flexible model of oligopolistic behavior where conduct parameters are modelled as functions of multimarket contact we find i carriers with little multimarket contact do not cooperate in setting fares whereas carriers serving many markets simultaneously sustain almost perfect coordination ii cross price elasticities play a crucial role in determining the impact of multimarket contact on equilibrium fares iii marginal changes in multimarket contact matter only at low or moderate levels of contact iv assuming firms behave as bertrand nash competitors leads to biased estimates of marginal costs

economic conditions and alcohol problems this study investigates the relationship between macroeconomic conditions and two alcohol related outcomes liquor consumption and highway vehicle fatalities fixed effect models are estimated for the 48 contiguous states over the 1975 1988 time period alcohol consumption and traffic deaths vary procyclically with a major portion of the effect of economic downturns attributed to reductions in incomes rather than employment the intake of hard liquor is the most sensitive to the state of the macroeconomy there is no evidence however that fluctuations in economic conditions have a disproportionate impact on the drunk driving of young adults

search bargaining money and prices the goal of this paper is to extend existing search theoretic models of fiat money which until now have assumed that the price level is exogenous by explicitly incorporating bilateral bargaining this allows us to determine the price level endogenously and leads to additional insights concerning the role of money for example we find that monetary equilibria are generally inefficient in the sense that output and prices differ from the solution to a social planner s problem although the difference can become small as the discount rate or search friction vanishes we also find that there exist nonstationary inflationary equilibria

a model of money with multilateral matching we develop a model of decentralized monetary exchange to examine the distributional effects of inflation across heterogeneous agents the agents have private information about their productivity preferences or money holdings matching is multilateral and each seller is visited by a stochastic number of buyers the good is allocated according to a second price auction in money in equilibrium homogeneous buyers hold different amounts of money leading to price dispersion we find the closed form solution for the distribution of money holdings entry of sellers is suboptimal except at the friedman rule inflation acts as a regressive tax

payments and liquidity under adverse selection informational asymmetries regarding the future value of assets affect their role in exchange i construct a random matching economy composed of two assets a risk free bond and a lucas tree whose terminal value is privately known to its holder no restrictions are imposed on payment arrangements the main finding supports a pecking order theory of payments agents use their risk free bonds first in order to finance their spending shocks and they use their information sensitive assets only if their holdings of bonds are depleted the theory has implications for the optimal provision of risk free bonds the structure of asset returns and liquidity

new estimates of the optimal tax on alcohol in this paper i use a new data set to estimate the optimal alcohol tax rate as a benchmark the empirical results imply that the optimal tax rate is over 100 percent of the net of tax price however alcohol taxation is a second best solution to the problems associated with alcohol abuse i conclude that the optimal alcohol tax rate would be much lower if punishment for drunk driving were more certain and severe government provision of information about the health consequences of heavy drinking would also remove part of the efficiency rationale for alcohol taxes

money in search equilibrium in competitive equilibrium and in competitive search equilibrium we compare three market structures for monetary economies bargaining search equilibrium price taking competitive equilibrium and price posting competitive search equilibrium we also extend work on the microfoundations of money by allowing a general matching technology and entry we study how equilibrium and the effects of policy depend on market structure under bargaining trade and entry are both inefficient and inflation implies first order welfare losses under price taking the friedman rule solves the first inefficiency but not the second and inflation may actually improve welfare under posting the friedman rule yields the first best and inflation implies second order welfare losses

evaluating the performance of merger simulation evidence from the u s airline industry abstract this paper uses merger simulations to predict postmerger prices for five airline mergers from the 1980s and compares these predictions with observed postmerger prices i find that standard simulation methods which measure the effect of the change in ownership on unilateral pricing incentives do not generally provide an accurate forecast by incorporating postmerger information into the model i measure the relative importance of other factors that also contributed to the observed price changes the results indicate that the unexplained component of the price change is largely accounted for by supply side effects i conclude that deviations from the assumed model of firm conduct play an important role in accounting for the differences between the predicted and observed price changes this conclusion suggests that the predictive performance of merger simulation would benefit if more flexible models of firm conduct were incorporated into the methodology

monopoly with incomplete information recent theoretical research on principal agent relationships has emphasized incentive problems that arise when the parties involved are constrained by either asymmetric information or their inability to monitor each other s actions here we concentrate on the former constraint and consider the case of a single principal the monopolist the main contribution is to show that under a separability assumption strong conclusions can be drawn about the nature of optimal incentive schemes although the primary focus is on optimal quantity discounts in a monopolized market the results also shed light on related topics such as optimal income taxation and commodity bundling

the cost of inflation a mechanism design approach abstract i apply mechanism design to quantify the cost of inflation that can be attributed to monetary frictions alone in an environment with pairwise meetings the money demand that is consistent with an optimal incentive feasible allocation takes the form of a continuous correspondence that can fit the data over the period 1900 2006 for such parameterizations the cost of moderate inflation is zero this result is robust to the introduction of match specific heterogeneity and endogenous participation decisions

a theory of rational addiction we develop a theory of rational addiction in which rationality means a consistent plan to maximize utility over time strong addiction to a good requires a big effect of past consumption of the good on current consumption such powerful complementarities cause some steady states to be unstable they are an important part of our analysis because even small deviations from the consumption at an unstable steady state can lead to large cumulative rises over time in addictive consumption or to rapid falls in consumption to abstention our theory also implies that cold turkey is used to end strong addictions that addicts often go on binges that addicts respond more to permanent than to temporary changes in prices of addictive goods and that anxiety and tensions can precipitate an addiction

undefeated equilibria of the shi trejos wright model under adverse selection abstract decentralized markets where assets are useful as media of exchange are also usually subject to private information to analyze the liquidity and prices of such assets i adapt the shi 1995 trejos and wright 1995 model with lucas trees under adverse selection while most studies focus on either a pooling or separating equilibrium i apply the undefeated equilibrium refinement by mailath et al 1993 to make the selection based on fundamentals under pooling the high quality asset holder accepts a pooled price and under separating signals quality through asset retention applying the refinement results in a regime switch from no information pooling to information revelation separating following a negative shock to the quality or quantity of lemons this change leads to a discontinuous fall in aggregate welfare

search limited participation and monetary policy a model is developed that employs recent developments in the literature on search models of money to capture the distributional effects of monetary policy in a tractable way deterministic and stochastic versions of the model are studied money is not neutral and these nonneutralities persist whether or not the change in the money supply is anticipated or unanticipated at the optimum monetary policy is geared to correcting distortions in the search sector of the economy while correcting for the persistent effects of past monetary policy actions there is no consensus among macroeconomists concerning the role of monetary policy in the short run however an influential idea is that limited participation in financial markets is an important mechanism behind the short run macroeconomic effects of central bank actions that is there is a component of economic activity that is centralized and interconnected this economic activity involves financial transactions among banks and other financial intermediaries and the agents who hold the assets and liabilities of these financial intermediaries when the central bank injects outside money into the economy or withdraws it the economic agents who are immediately affected by the monetary injection or withdrawal are the participants in these centralized transactions other economic agents who are engaged in more decentralized and less interconnected transactions will not be affected directly by the first round effects of central bank actions thus there will be a distributional effect of monetary injections and withdrawals as first captured in heterogeneous agent models by grossman and weiss 1983 and rotemberg 1984 this distributional effect will matter in interesting ways for the price level nominal interest rates aggregate output foreign exchange rates and the distribution of consumption across the population the grossman weiss and rotemberg models are not analytically tractable because of the difficulty in tracking the distribution of wealth over time however lucas 1990 fuerst 1992 and alvarez and atkeson 1997 among others

on money as a medium of exchange we analyze economies in which individuals specialize in consumption and production and meet randomly over time in a way that implies that trade must be bilateral and quid pro quo nash equilibria in trading strategies are characterized certain goods emerge endogenously as media of exchange or commodity money depending both on their intrinsic properties and on extrinsic beliefs there are also equilibria with genuine fiat currency circulating as the general medium of exchange we find that equilibria are not generally pareto optimal and that introducing fiat currency into a commodity money economy may unambiguously improve welfare velocity acceptability and liquidity are discussed

multimarket contact and collusive behavior traditional analyses of industrial behavior typically link the exercise of market power in an industry to internalfeatures such as demand conditions concentration and barriers to entry nevertheless some economists have remained concerned that external factors such as contact across markets may also play a significant role in determining the level of competitiveness in any particular industry in this article we examine the effect of multimarket contact on the degree of cooperation that firms can sustain in settings of repeated competition we isolate conditions under which multimarket contact facilitates collusion and show that these collusive gains are achieved through modes of behavior that have been identified in previous empirical studies of multimarketfirms

estimation of a model of entry in the airline industry this paper considers the effect of an airline s scale of operation at an airport on the profitability of routes flown out of that airport the empirical methodology uses the entry decisions of airlines as indicators of underlying profitability the results extend the empirical literature on airport presence by providing a new set of estimates of the determinants of city pair profitability these estimates imply that city pair profits increase in airport presence and decrease rapidly in the number of entering firms the literature on empirical models of oligopoly entry is also extended via a focus on the role of differences between firms

the effects of male and female labor supply on commodity demands we examine the effects of male and female labor supply on household demands and present a simple and robust test for the separability of commodity demands from labor supply using data on individual households from six years of the uk fes we estimate a demand system for seven goods which includes hours and participation dummies as conditioning variables allowance is made for the possible endogeneity of these conditioning labor supply variables we find that separability is rejected furthermore we present evidence that ignoring the effects of labor supply leads to bias in the parameter estimates

gender differences in labor market effects of alcoholism little is known about the role of specific health problems in affecting labor market productivity even less is known about gender differences in the labor market effects of such health problems current knowledge of health effects is based largely on samples composed exclusively of men a common practice in both economics and health research in the latter case even a congressional mandate to incorporate females in study samples is reputed to have had little effect patricia schroeder 1990 in this study we attempt to determine the structure of gender differences in labor market responses to alcoholism we use a relatively new data source that allows such comparisons by gender in a large community based sample previous studies have established that there are significant gender differences in labor market behavior differences in prevalence rates of alcoholism by gender are also well established it is estimated that 3 percent of females are currently suffering from alcoholism and twice that many have exhibited symptoms at some time for males the numbers are 10 and 20 percent respectively there is some medical evidence to indicate that physiologically women and men respond differently to alcohol for example a recent study suggests that women have greater vulnerability to the acute and chronic health conditions associated with alcoholism mario frezza et al 1990

bargaining and the value of money abstract search models of monetary exchange have typically relied on nash 1950 the bargaining problem econometrica 18 155 162 bargaining or strategic games that yield an equivalent outcome to determine the terms of trade by considering alternative axiomatic bargaining solutions in a search model with divisible money we show that the properties of the bargaining solutions do matter both qualitatively and quantitatively for questions of first degree importance in monetary economics such as i the efficiency of monetary equilibrium ii the optimality of the friedman rule and iii the welfare cost of inflation

a unified framework for monetary theory and policy analysis search theoretic models of monetary exchange are based on explicit descriptions of the frictions that make money essential however tractable versions of these models typically make strong assumptions that render them ill suited for monetary policy analysis we propose a new framework based on explicit micro foundations within which macro policy can be studied the framework is analytically tractable and easily quantifiable we calibrate the model to standard observations and use it to measure the cost of inflation we find that going from 10 percent to 0 percent inflation is worth between 3 and 5 percent of consumption much higher than previous estimates

on the effects of suggested prices in gasoline markets textabstractthis article analyzes the role of suggested prices in the dutch retail market for gasoline suggested prices are announced by large oil companies with the suggestion that retailers follow them there are at least two competing rationales for the existence of suggested prices they may either help retailers translate changes in international gasoline spot market prices into retail prices or they may coordinate retail prices we show that there is next to the international spot market prices additional information in suggested prices that explains retail prices therefore we conclude that suggested prices help to coordinate retail prices

beer taxation and alcohol related traffic fatalities the majority of studies of alcohol related traffic fatalities find beer taxes to be an important policy variable this is surprising since beer taxes only have a small impact on consumption and heavy drinkers are the least responsive to prices this study shows that the tax relationship is not robust across data periods and that it reflects missing variable biases while lack of control for law enforcement efforts does not appear to bias tax coefficients failure to include determinants of alcohol consumption other than taxes and drinking age and or factors that simultaneously determine drinking behavior and political support for alcohol taxes apparently do

taxing to control social costs the case of alcohol whether taxation of alcoholic beverages is an appropriate means of reducing social costs of alcohol consumption is a continuing public policy issue some argue that the public health costs and other external costs associated with the consumption of alcoholic beverages are so significant as to justify substantial excise taxes on those beverages others counter that a tax on alcohol would reduce consumption indiscriminately and therefore reduce the satisfaction experienced by millions of sensible drinkers without necessarily reducing the harm caused by a few excessive drinkers 2 this paper presents and applies a framework for evaluating these two views of the efficiency welfare effects of alcohol taxes determining the efficiency implications of alcohol taxes is complicated by the question of whether and how much abusers especially alcoholics benefit from alcohol consumption standard welfare theory assumes that all consumers of alcohol enjoy positive net benefits consumer surplus however it is possible that alcoholics over consume in the sense that consumer surplus from their

alcoholism work and income this article reports on an empirical analysis of the relationships between alcoholism and income and working we show that the relationships between alcoholism and labor market success have important age or life cycle dimensions we present evidence that alcoholism may affect income more by restricting labor market participation than by affecting the wages of workers finally we demonstrate that the effects of alcoholism on earnings depend on the extent to which one controls for other covariates associated with alcoholism as such we suggest that there may be important indirect as well as direct effects of alcoholism on labor market success

employment unemployment and problem drinking the misuse of alcohol is estimated to result in enormous economic costs composed largely of reduced labor market productivity however there has been debate on this issue the purpose of this paper is to help to resolve this debate by presenting sound structural estimates of the relationship between measures of problem drinking and of employment and unemployment the analysis is based on the 1988 alcohol supplement of the national health interview survey we find that for both men and women problem drinking results in reduced employment and increased unemployment

hubs and high fares dominance and market power in the u s airline industry this article estimates the importance of route and airport dominance in determining the degree of market power exercised by an airline the results indicate that an airline s share of passengers on a route and at the endpoint airports significantly influences its ability to mark up price above cost the high markups of a dominant airline however do not create much of an umbrella effect from which carriers with smaller operations in the same markets can benefit the article suggests a number of possible explanations for this asymmetry

money and information this paper investigates the role of money in markets in which producers have private information about the quality of the goods they supply when the fraction of high quality producers in the economy is given money promotes the production of high quality goods which improves the quality mix and welfare unambiguously when this fraction is endogenous however we find that money can decrease welfare relative to the barter equilibrium the origin of this inefficiency is that money provides consumption insurance to low quality producers which can result in a higher fraction of low quality producers in the monetary equilibrium finally we find that most often agents acquire more costly information in the monetary equilibrium than in the barter equilibrium consequently money is welfare enhancing because it promotes useful production and exchange but not because it saves information costs

liquidity a new monetarist perspective this essay surveys the new monetarist approach to liquidity work in this literature strives for empirical and policy relevance plus rigorous foundations questions include what is liquidity is money essential in achieving desirable outcomes which objects can or should serve in this capacity when can asset prices differ from fundamentals what are the functions of commitment and collateral in credit markets how does money interact with credit and intermediation what can and should monetary policy do the research summarized emphasizes the micro structure of frictional transactions and studies how institutions like monetary exchange credit arrangements or intermediation facilitate the exchange process

living by the golden rule multimarket contact in the u s airline industry this paper examines empirically the effects of multimarket contact on pricing in the u s airline industry the analysis of the time series and cross sectional variability of airline fares in the 1000 largest domestic city pair routes reveals the presence of statistically significant and quantitatively important multimarket effects fares are higher in city pair markets served by carriers with extensive interroute contacts these findings are consistent with the claims of industry experts that airlines live by the golden rule i e that they refrain from initiating aggressive pricing actions in a given route for fear of what their competitors might do in other jointly contested routes during his testimony mr steven b elkins senior director of marketing systems development for northwest airlines cited an example in which northwest lowered fares on night flights that were flying with empty seats in a number of routes from minneapolis and upper midwest cities to various west coast cities he said that continental airlines swiftly responded by cutting prices in important northwest markets mr elkins s memo advises northwest pricing analysts we will live by the golden rule in his testimony he explained that the golden rule in that context was that i did not want my pricing analyst initiating actions in another carrier s market like chicago for fear of what that other carrier might do to retaliate wall street journal october 9 1990 p b1

price setting price dispersion and the value of money or the law of two prices abstract we study models combining search money price posting and preference shocks we show how these features interact to influence the price level and price dispersion first price posting equilibria exist with valued fiat currency second although both are possible price dispersion is more common than a single price third we prove that generically there cannot be more than two prices we provide intuition for this law of two prices show it also holds in some nonmonetary search models and discuss variations of the assumptions under which it may not hold

money and price posting under private information abstract we study price posting with undirected search in a search theoretic monetary model with divisible money and divisible goods ex ante homogeneous buyers experience match specific preference shocks in bilateral trades the shocks follow a continuous uniform distribution and the realizations of the shocks are private information we show that there exists a unique monetary equilibrium for generic values of the inflation rate in equilibrium each seller posts a continuous pricing schedule that exhibits quantity discounts buyers may spend nothing a fraction or all of their money holdings depending on their preference shock realizations inflation reduces the extent of non linear pricing the model captures the hot potato effect of inflation along both the extensive margin as an increase in the trading probability and the intensive margin as higher fractions of money being spent