how does advertising depend on competition evidence from u s brewing the relationship between market structure and advertising has been extensively studied but has generated sharply opposing theoretical predictions as well as inconclusive empirical findings likely because of severe endogeneity concerns we exploit the 2008 merger of miller and coors in the u s brewing industry to examine how changes in local concentration affect firms advertising behavior well established regional preferences over beer brands and the sharp increase in concentration from the merger make this an excellent setting to analyze this question we find a significant positive effect of local market concentration on advertising expenditures a 100 point increase in the herfindahl hirschmann index measure of concentration increases advertising per capita by about 5 our findings shed light on how and when firms choose to deploy advertising the online appendix is available at https doi org 10 1287 mnsc 2017 2889 this paper was accepted by eric anderson marketing

retail pricing and clearance sales sellers of new products are faced with having to guess demand conditions to set price appropriately but sellers are able to adjustprice over time and to learn from past mistakes additionally it is not necessary that all goods be sold with certainty it is sometimes better to set a high price and to risk no sale this process is modeledto explain retail pricing behavior and the time distribution of transactions prices start high and fall as a function of time on theshelf the initial price and rate of decline can be predicted and depends on thinness of the market the proportion of customers who are window shoppers and other observable characteristics copyright 1986 by american economic association

the value of embedded real options evidence from consumer automobile lease contracts under the common assumption of constant interest rates we show that penalties for early termination of a lease are often structured in such a way that the cancellation option embedded in consumer automotive leases has little value furthermore our estimates drawn from a sample of three popular car models over 1990 to 2000 indicate that the stand alone value of the lease end purchase option is on average about 16 of the market value of underlying used vehicles or about 1 462 per contract finally we examine the sensitivity of our option value estimates to model parameters and default risk recent years have witnessed a dramatic growth in the leasing of automobiles for instance overall industry sales data indicate that about a third of the new vehicles and trucks sold in the united states are leased hendel and lizzeri 2002 and miller 1995 and the federal reserve board survey of family finances reports that the use of leased vehicles by individuals nonbusiness consumers has risen from 2 9 to 5 8 over the 1992 to 2001 period azicorbe kennickell and moore 2003 consumer automobile lease contracts for new cars often include two embedded options that are not associated with a typical debt contract the first is a cancellation option that allows the lessee to terminate the lease early the second is a european call option which gives the lessee the right but not the obligation to purchase the leased used vehicle at the scheduled termination of the lease at a predetermined exercise price both of these options are simple examples of real options because the asset underlying these options is a used car that is a real asset however these options constitute a special case of real options since they are embedded in the lease contract which is a financial credit instrument theoretical analyses of lease contracts show that the cancellation option is quite valuable schallheim and mcconnell 1985 with respect to the purchase option hendel and lizzeri 2002 argue that they can play an important role in

spatial differentiation and vertical mergers in retail markets for gasoline this paper studies an empirical model of spatial competition applied to gasoline markets the main feature is to specify commuting paths as the locations of consumers in a hotelling style model as a result spatial differentiation depends in an intuitive way on the structure of the road network and the direction of traffic flows the model is estimated using panel data on the quebec city gasoline market and used to evaluate the consequences of a recent vertical merger difference in difference and counterfactual simulation methods are compared and the results to a large extent validate the assumptions of the demand model jel g34 l13 l42 l81 q41 r41

demand uncertainty and sales a study of fashion and markdown pricing the theory of clearance sales is expanded and applied to explain why markups markdowns and the frequency of sales of merchandise sold by department stores have increased dramatically in recent years and why they differ across merchandise groups tha major theme of the paper is that the growing role of fashion and product variety is an important reason for these increases and for the differences between merchandise groups the growing importance of fashion is illustrated by documenting the declining use of whites and the increasing use of colors and prints estimates of the effects of imports and technological and demographic changes on markups and markdowns are presented copyright 1988 by american economic association

vertical relationships and competition in retail gasoline markets empirical evidence from contract changes in southern california comment this study examines how much if any of the differences in retail gasoline prices between markets is attributable to differences in the composition of vertical contract types at gasoline stations in each market the purchase of the independent retail gasoline chain thrifty by arco provides a unique opportunity to examine the effects of changes in different vertical contract types on local retail prices this event caused sharp changes in the market share of i fully vertically integrated stations and ii independent stations differentially affecting local markets in the los angeles and san diego metropolitan areas using unique and detailed station level data this study examines how these sharp changes affected local retail prices the detailed data and the research design based on the thrifty station conversions allow for credible estimation of the effects of the market share of independent retailers and vertically integrated retailers on local market prices controlling for any omitted factors at the station level and the city level over time results for the los angeles and san diego metropolitan areas indicate that a decrease in the market share of independent stations has a significant positive impact on local retail price however a change in the market share of refiner owned and operated branded stations does not have a significant impact on local market price these results have important implications as policy makers consider the regulation of vertical contracts as a means to increase competition in gasoline markets the research design and detailed data also allow for inference on the underlying nature of retail gasoline competition

unit root hypothesis new classical and keynesian models abstract following perron econometrica 1989 57 1361 1401 the variables in the new classical and keynesian output equations are shown to be trend stationary therefore these models are evaluated for the united states with the standard non nested hypothesis tests the majority of these tests have rejected the new classical in favour of the keynesian approach

a disequilibrium model of rational expectations for the u k so far the new classical model and the policy ineffectiveness proposition have been tested essentially within an equilibrium framework and disequilibrium methods of estimation have been used to estimate the labor market models in this paper the authors develop an aggregate goods market model for the united kingdom in which the new classical rational expectations hypothesis and the disequilibrium approach are integrated their estimates of the model show that the structural parameters are well determined and price adjustment in the united kingdom is very sluggish therefore the new classical policy ineffectiveness proposition is not valid for the united kingdom copyright 1991 by royal economic society

fashion styling and the within season decline in automobile prices between 1954 and 1989 the seasonal variation in retail new car prices declined while the annual percentage decline in used car prices lessened to explain these long term changes this article suggests that a rise in the cost of a major model change has reduced the frequency of major model changes changed the characteristics of new models and resulted in smaller within season price declines new cars of adjacent model years have become closer substitutes as the importance of the annual model change has lessened the american automobile has slowly become less of a fashion product because it has become increasingly costly to supply frequent styling changes in contrast the within season price decline in women s apparel has increased over time as fashion has become more important reasons for the different price patterns are investigated

who bears the cost of a change in the exchange rate pass through accounting for the case of beer abstract nominal exchange rates are remarkably volatile they ordinarily appear disconnected from the fundamentals of the economies whose currencies they price these facts make up a classic puzzle about the international economy if prices do not respond fully to changes in the nominal exchange rate who bears the cost of such large and unpredictable changes foreign firms domestic firms or domestic consumers this study presents a new analysis of the sources of incomplete pass through and then uses this analysis to re examine its implications for social welfare i develop and estimate a structural model that analyzes the sources of local currency price stability for a particular industry the model enables counterfactual simulations that quantify the relative importance of firms local cost components and markup adjustments in the incomplete transmission of exchange rate shocks to prices and the effect of the exchange rate shock on domestic and foreign firms profits and on consumer surplus the model is applied to a panel dataset of one industry with retail and wholesale prices for upc level products i find that markup adjustments by manufacturers and the retailer explain roughly half of the incomplete transmission and local cost components account for the other half foreign manufacturers generally bear a greater cost or reap a greater benefit following an exchange rate induced marginal cost shock than do domestic consumers domestic manufacturers or the domestic retailer

an economic theory of planned obsolescence planned obsolescence is the production of goods with uneconomically short useful lives so that customers will have to make repeat purchases however rational customers will pay for only the present value of the future services of a product therefore profit maximization seemingly implies producing any given flow of services as cheaply as possible with production involving efficient useful lives this paper shows why this analysis is incomplete and therefore incorrect monopolists are shown to desire uneconomically short useful lives for their goods oligopolists have the monopolist s incentive for short lives as well as a second incentive that may either increase or decrease their chosen durability however oligopolists can generally gain by colluding to reduce durability and increase rentals relative to sales some evidence is presented that appears to be generally consistent with the predictions of the theory

price competition in u s brewing this study utilizes a brand level dataset that captures a unique natural experiment a 100 increase in the excise tax to evaluate different pricing models in the u s beer industry to assess the plausibility of different models the increase in marginal cost resulting from the tax increase is exploited observed prices in the post increase period are compared to the prices that should be observed under various pricing models three types of models are analyzed bertrand nash leadership and collusion results indicate that extreme cases of collusion can be confidently ruled out while several models may explain the observed prices equally well

do substantial horizontal mergers generate significant price effects evidence from the banking industry this study examines the price effects of recent us bank mergers that substantially increased local market concentration using the deposit interest rates that banks offer their customers as our price measure we find that over the 1991 94 time period deposit rates offered by participants in substantial horizontal mergers and their local market rivals declined by a greater percentage than did deposit rates offered by banks not operating in markets in which such mergers took place we interpret our results as evidence that these mergers led to increased market power

the impact of industry consolidation on government procurement evidence from department of defense contracting abstract we study the relationship between market structure and public procurement outcomes in particular we ask whether and to what extent consolidation driven increases in industry concentration affect the way in which the government procures its goods and services we focus on the defense industry by far the largest contributor to federal procurement spending in the u s this industry experienced a sharp increase in the level of concentration during the 1990s driven by a series of large mergers between defense contractors using detailed microdata on department of defense dod contract awards we estimate the causal effect of industry concentration on a series of procurement outcomes leveraging the differential impact of these mergers across product markets we find that market concentration caused the procurement process to become less competitive with an increase in the share of spending awarded without competition or via single bid solicitations increased concentration also induced a shift from the use of fixed price contracts towards cost plus contracts however we find no evidence that consolidation led to a significant increase in acquisition costs we infer that the government s buyer power especially relevant in this context given the government is often the only purchaser constrained firms from exercising any additional market power gained by consolidation

the nature of transactions in the u s aggregate goods market abstract a model to estimate the proportion of transactions taking place in the new classical disequilibrium and keynesian markets is developed to estimate the aggregate u s goods market our results show that more than 14 of the transactions take place in the new classical equilibrium markets and the rest in the keynesian markets

are mergers beneficial to consumers evidence from the market for bank deposits the general conclusion of the empirical literature is that in market consolidation generates adverse price changes harming consumers previous studies however look only at the short run pricing impact of consolidation ignoring effects that take longer to materialize using a database that includes detailed information on the deposit rates of individual banks in local markets for different categories of depositors we investigate the long run price effects of mergers we find strong evidence that although consolidation does generate adverse price changes these are temporary in the long run efficiency gains dominate over the market power effect leading to more favorable prices for consumers jel g21 g34 l1

are all the good men married uncovering the sources of the marital wage premium a longstanding and yet unsettled question in labor economics is does marriage cause men s wages to rise cross sectional wage studies consistently find that married men earn significantly higher wages than do men who are not currently married however it is well known that inferring causal relationships from crosssectional analysis is inappropriate because of the biases introduced by unobserved heterogeneity as a means of circumventing this problem this paper uses data on identical twins to control for unobserved heterogeneity our estimates suggest that marriage increases men s wages by as much as 27 and that little if any of the cross sectional relationship between marriage and wages is due to selection in addition we find little evidence that the marital wage premium is a consequence of household specialization

the product life cycle and sample representativity bias in price indexes abstractofficial price indexes are usually calculated using matched samples of products if products exhibit systematic price trends at different points in their life cycle then matched sample methods may introduce bias if the life cycle movement in the sample does not adequately reflect that in the population this article explores the extent of these life cycle pricing effects and then examines the bias it can introduce in measured inflation a large us supermarket scanner data set for six cities and six products over 12 years is used using hedonic methods we find that the life cycle component of price change is important across a range of products and cities to explore the bias introduced by these movements we use simulations that construct indexes with different sample update frequency for indexes that are never completely resampled we find an annual absolute bias of 0 88 and 0 59 percentage points depending upon whether we use the actual prices or prices imputed from our hedonic model this comp

upward pricing pressure as a predictor of merger price effects abstract we use monte carlo experiments to evaluate whether upward pricing pressure upp accurately predicts the price effects of mergers motivated by the observation that upp is a restricted form of the first order approximation derived in jaffe and weyl 2013 results indicate that upp is quite accurate with standard log concave demand systems but understates price effects if demand exhibits greater convexity prediction error does not systematically exceed that of misspecified simulation models nor is it much greater than that of correctly specified models simulated with imprecise demand elasticities the results also support that upp provides accurate screens for anticompetitive mergers

the pass through of beer taxes to prices evidence from state and federal tax changes i introduction alcohol excise taxes are a common form of taxation used by the federal government and state governments alike serving the dual purpose of raising revenue and protecting the public health through reduced consumption 1 from a policy perspective it is crucial to understand how alcohol taxes are passed through to prices if higher taxes are to be levied standard economic theory predicts that taxes are at most fully passed through in a competitive market where firms are price takers however the market for beer in the united states can be best categorized as an oligopoly and beer stands out as the most prevalent type of alcohol consumed in the country 2 theories in imperfect competition suggest various possibilities of tax shifting including over and under shifting to prices in oligopolistic markets as fullerton and metcalf 2002 discuss an over shifting of tax can occur because of both the existence of market power and the strategic behavior of firms under shifting is also possible when the burden of higher taxes is shifted to labor in the form of lower wages or to other factors of production ultimately the amount of the tax pass through is an empirical question and therefore the main goal of this study is to provide new estimates of the magnitude of the beer tax pass through to prices in the united states when legislators consider changing beer taxes precise and recent estimates of the pass through rate are required to understand how the tax change will affect retail prices to our knowledge there are only a few existing studies that empirically estimate the pass through rate of alcohol taxes to prices in the united states using quarterly state level data from 1982 to 1997 young and kwapisz 2002 find that taxes on beer spirits and wine are over shifted to retail prices specifically the authors estimate that a 1 increase in the tax per barrel of beer increases the retail beer price by a range of 1 67 1 88 kenkel 2005 uses the 2002 tax hike in alaska to perform before after analyses and concludes that alcohol taxes are more than fully passed through to prices kenkel finds that the average pass through rate for off premise consumption is 2 14 2 03 and 1 57 for budweiser bud light and heineken respectively although a novel study in various ways the lack of a control group and the study s focus just on alaska raises questions regarding the external validity of the results stehr 2007 uses price data from the third quarter editions of the american chamber of commerce research association accra from 1990 to 2004 and finds that the magnitude of the pass through of beer taxes to prices is 0 94 this point estimate suggests that beer taxes are almost fully passed through to prices and a confidence interval around the estimate includes values greater than one however stehr s study only includes state and year fixed effects in the model as additional control variables and excludes other potential determinants of both alcohol prices and taxes also it is unclear as to why the study only uses the third quarter editions of accra when tax changes may occur any time during the year reflecting on the existing studies in the united states it must be emphasized that the most recent data used ends in 2004 since then the beer industry has experienced two major mergers of leading producers sabmiller and coors in 2007 followed by anheuser busch and inbev in 2008 given this restructuring within the industry new estimates of the tax pass through rate are warranted in terms of studies outside the united states bergman and hansen 2010 analyze the tax pass through rate in denmark using the liquor tax cut in 2003 the beer tax increase in 1997 and the beer tax cut in 2005 the authors find evidence of over shifting during the incidence of tax hikes and under shifting during the events of tax cuts carbonnier 2013 studies differences between the ad valorem taxes and per unit excise taxes in france and finds that the per unit excise taxes are over shifted whereas ad valorem taxes are under shifted to prices

paying a premium on your premium consolidation in the us health insurance industry we examine whether and to what extent consolidation in the u s health insurance industry is leading to higher employer sponsored insurance premiums we make use of a proprietary panel dataset of employer sponsored healthplans enrolling over 10 million americans annually between 1998 and 2006 to explore the relationship between premium growth and changes in market concentration we exploit the differential impact of a large national merger of two insurance firms across local markets to estimate the causal effect of concentration on market level premiums we estimate real premiums increased by approximately 7 percentage points in a typical market due to the rise in concentration during our study period we also find evidence that consolidation facilitates the exercise of monopsonistic power vis a vis physicians whose absolute employment and relative earnings decline in its wake

inventories and the automobile market this article studies the within model year pricing production and inventory management of new automobiles using new monthly data on u s transaction prices we document that for the typical vehicle prices fall over the model year at a 9 0 annual rate concurrently both sales and inventories are hump shaped to explain these time series we formulate an industry model for new automobiles in which inventory and pricing decisions are made simultaneously the model predicts that automakers build to stock inventory management policy substantially influences the time series of prices and sales accounting for four tenths of the price decline observed over the model year

why are products sold on sale explanations of pricing regularities this paper reports on interesting changes in markdown pricing practices over time and differences in the pricing within a product line the price discrimination and the uncertainty hypotheses appear to better explain the data than the peak load hypothesis fashion has become more important over time and appears to explain the greater seasonal variation in retail apparel prices in recent years differences in uncertainty also explains differences in the pricing of different types of men s dress shirts

dynamic efficiencies of the 1997 boeing mcdonnell douglas merger we evaluate the welfare effects of the 1997 boeing mcdonnell douglas merger in the medium sized wide body aircraft industry we find that the merger led to lower prices to explain the price drop we develop a dynamic oligopoly game with learning by doing we quantify the welfare effects of the merger by incorporating both increased market power and merger efficiencies from accelerated learning by doing our dynamic analysis indicates that net consumer surplus increased by as much as 5 14 billion whereas a static model ignoring efficiencies of learning by doing predicts a 0 92 billion loss

a test of price sluggishness in the simple rational expectations model u k i950 i980 a recurrent feature of the empirical output and price equations derived from simple rational expectations models is that the effects of nominal shocks persist for a long period of time in barro s i977 a unemployment equation unanticipated monetary growth influences unemployment with lags of up to 2 years in his price equation barro i 98 i unanticipated money has a lag of up to 5 years in the price equation fitted to uk data by attfield et al i 98i real money balances influence prices with a one year lag and unanticipated monetary growth influences them with a 2 year lag of course the existence of lags is neither necessary nor sufficient for the negation of the neutrality proposition of rational expectations models lucas i975 sargent 1979 and blinder and fischer i98i have provided rationales for the existence of lags in the supply equation and demonstrated their consistency with the neutrality proposition similarly the work of attfield et al i98i has indicated that lagged adjustments in the demand for money are also consistent with neutrality in both cases the combination of lagged adjustments with perfectly flexible market clearing prices yields all the neutrality propositions of the models of lucas and others however it is also the case that traditional keynesian type models with sluggish price adjustment imply lags in output and price equations the final equations with keynesian type lags may look very similar to the equations derived by lucas barro and others but their implications about the effectiveness of policy may be very different in the model with sluggish price adjustment supply is not equal to demand so some other rule will have to be found to determine employment and output anticipated monetary policy may be able to influence real economic variables if the employment and output rules are not specifically designed to offset the effects of anticipated policy for this reason a strong test of the neutrality proposition should be able to differentiate between different sources of lags and be able to identify them empirically if the test consists merely of a reduced form equation that identifies the lags and a rationalisation of them that is consistent with the neutrality proposition it can provide only weak evidence which may also be consistent

airline mergers airport dominance and market power effects of northwestrepublic and twaozark mergers on fares at minneapolisst paul and st louis

do gasoline mergers affect consumer prices the marathon ashland petroleum and ultramar diamond shamrock transaction abstract in 1999 marathon ashland petroleum map acquired the michigan assets of ultramar diamond shamrock uds which increased map s share of terminal storage in michigan from about 16 percent to about 25 percent and increased the share of gasoline stations bearing a map brand from about 16 percent to about 24 percent in this paper we examine whether this acquisition affected the retail price of gasoline we use a difference in differences model to compare price movements in six michigan cities affected by the acquisition with price movements in two nearby cities unaffected by the acquisition using this model we find no evidence that this acquisition led to higher prices for consumers

market power vertical integration and the wholesale price of gasoline this paper examines empirically the relationship between vertical integration and wholesale gasoline prices we use discrete and differential changes in the extent of vertical integration generated by mergers in west coast gasoline refining and retailing markets to test for incentives to raise rivals costs the research design allows us to test for a relationship between vertical integration and wholesale prices controlling for horizontal market structure cost shocks and trends we find evidence consistent with the strategic incentive to raise competitors input costs this suggests that vertical integration can have a significant impact on wholesale prices

the nature of the adas model based on the islm model the aggregate demand and supply model adas is interpreted as a synthesis of the keynesian and neoclassical models it uses the islm model without explaining its nature to derive aggregate demand ad it is combined with an aggregate supply as curve to explain price inflation and output dynamics this paper argues that neither the ad nor as curve is conceptually the same as its microeconomic counterpart and adas is not a synthesis in fact adasimplies that discretionary policy is necessary and that price changes do not perform their traditional negative feedback function

efficiencies brewed pricing and consolidation in the u s beer industry merger efficiencies provide the primary justification for why mergers of competitors may benefit consumers surprisingly there is little evidence that efficiencies can offset incentives to raise prices following mergers we estimate the effects of increased concentration and efficiencies on pricing by using panel scanner data and geographic variation in how the merger of the brewers miller and coors was expected to increase concentration and reduce costs all else equal the average predicted increase in concentration led to price increases of 2 but at the mean this was offset by a nearly equal and opposite efficiency effect

intertemporal substitution and new car purchases this article presents a dynamic demand model for motor vehicles this approach accounts for the change in the mix of consumers over the model year and measures consumers substitution patterns across products and time i find intertemporal substitution is significant consumers are more likely to change the timing of their purchase in reaction to a price increase rather than buy another vehicle in the same period further i find automakers use of large cash back rebates at the end of the model year although boosting overall sales induces large numbers of consumers to delay their purchases and so pay lower prices