the nature of costs and the number of firms at cournot equilibrium abstract the paper analyzes the perfect equilibria of a two stage entry production game in a simple model with constant marginal costs a fixed cost per firm and cournot behaviour at the production stage if fixed costs are not sunk the range of equilibrium values for n the number of firms can be quite large that range becomes smaller with the lower values of n being eliminated the more that fixed costs are sunk thus there is a sense in which sunk costs can rule out some less competitive equilibria to the benefit of consumers and potential entrants by enhancing the credibility of entry

the effects of taxation price control and government contracts in oligopoly and monopolistic competition abstract many government contracts with or policies towards oligopolistic sectors essentially involve private firms selling a given proportion or quantity of output to the government at a fixed price p r with the remainder being sold on the open market often this is combined with consumer rationing examples include cement and sugar in india and health housing and defence in many countries the paper investigates the effects of these schemes including sales and excise taxation on prices output and household welfare under oligopoly and monopolistic competition less government control reduced may raise prices and tax shifting can be above or below 100 percent

collective labor supply a single equation model and some evidence from french data in chiappori s 1988 collective model of labor supply hours of work are supposed flexible in many countries however male labor supply does not vary much in that case the husband s labor supply is no longer informative about the household decision process and individual preferences to identify structural components of the model additional information is needed we thus consider an approach in which the wife s labor supply is expressed as a function of the household demand for one specific good we demonstrate that the main properties of chiappori s initial model are preserved and apply our results on french data

taxing food and beverages theory evidence and policy we developed a theoretical framework to examine the effect of a change in sales or excise tax on food and beverage demand after considering that consumers may have imperfect tax knowledge are sometimes inattentive to sales tax may not be informed of a sales tax change and pay no sales tax on eligible food or beverages if using food stamps we conducted simulations to assess how much the sales tax elasticity of demand should be adjusted downward from the price elasticity of demand and quantified the advantage of using an excise tax as an anti obesity policy copyright 2013 oxford university press

do cigarette producers price discriminate by state an empirical analysis of local cigarette pricing and taxation abstract this study analyzes the interactive effects of oligopoly pricing state taxation and anti smoking regulations on retail cigarette prices by state using panel data for the 50 us states between 1960 and 1990 the results indicate that cigarette producers do price discriminate by state though the effect is not large relative to the final retail price there are two further results 1 state taxes are more than passed on a 1 cent state tax increase results in a price increase of 1 11 cents and 2 sellers offset state and local anti smoking laws with lower prices thereby blunting effects of the regulations

caught in the trap welfare s disincentive and the labor supply of single men abstract youth unemployment is particularly large in many industrialized countries and has dramatic consequences in both the short and long term while there is abundant evidence about the labor supply of married women and single mothers little is known about how young childless singles react to financial incentives the french minimum income revenu minimum d insertion rmi often accused of generating strong disincentives to work offers a natural setting to study this question since childless single individuals primarily males constitute the core group of recipients exploiting the fact that childless adults under age 25 are not eligible for this program we conduct a regression discontinuity analysis using french census data we find that the rmi reduces the participation of uneducated single men by 7 10 at age 25 we conduct an extensive robustness check and discuss the implications of our results for youth unemployment and current policy developments

does work pay in france monetary incentives hours constraints and the guaranteed minimum income abstract this paper uses a representative sample of individuals on france s main welfare program the revenu minimum d insertion or rmi to estimate monetary incentives for employment among welfare recipients based on the estimated joint distribution of wages and hours potentially offered to each individual we compute potential gains from working in a very detailed manner relating these gains to observed employment we then estimate a simple structural labor supply model we find that potential gains are almost always positive but very small on average especially for single mothers because of the high implicit marginal tax rates embedded in the system employment rates are sensitive to incentives with extensive margin elasticities for both men and women usually below one conditional on these elasticities simulations indicate that existing policies devoted to reducing marginal tax rates at the bottom of the income distribution such as the interessement earnings top up program have little impact in this population due to their very limited scope the negative income tax prime pour l emploi seems to be an exception

welfare transfers in two parent families labor supply and welfare participation under afdc up this paper examines the effect of cash transfers and food stamp benefits on family labor supply and welfare participation among two parent families the aid to families with dependent children unemployed parent program has provided cash benefits to two parent households since 1961 despite recent expansions little is known about the program s effect on labor supply and welfare participation i develop a model of family labor supply in which hours of work for the husband and wife are chosen to maximize family utility subject to a family budget constraint accounting for afdc up benefits and other tax and transfer programs the husband s and wife s labor supply decisions are restricted to no work part time work and full time work maximum likelihood techniques are used to estimate parameters of the underlying hours of work and welfare participation equations the estimates are used to determine the magnitude of the work disincentive effects of the afdc up program and to simulate the effects of changes in afdc up benefit and eligibility rules on family labor supply and welfare participation the results suggest that labor supply and welfare participation among two parent families are highly responsive to changes in the benefit structure under the afdc up program

changes in male labor supply and wages in the 1980s both wages and labor supply of poorly educated men fell substantially relative to those of educated men some observers have interpreted this positive association between changes in w

a cohort analysis of the association between work hours and wages among men the results of some recent ingenious labor supply research may appear incompatible with the notion that uncompensated wage elasticities for men are small perhaps negative this paper argues there is no incompatibility the methodology in this recent research results in computing wage responses that come closer to measuring intertemporal wage elasticities than to uncompensated wage elasticities to demonstrate this i use pseudopanel data constructed from the march current population surveys from 1967 to 1998 to measure both intertemporal wage elasticities and uncompensated wage elasticities the latter appear sensitive to the particular specification of the hours equation

stackelberg versus cournot oligopoly equilibrium abstract we compare an m firm cournot model with a hierarchical stackelberg model where m firms choose outputs sequentially the stackelberg equilibrium price is lower so output and total surplus are higher total profits are lower while the first mover in a stackelberg duopoly earns more than a cournot duopolist this is not necessarily true for m 2 we find a surprisingly simple relation which determines whether cournot profit exceeds the stackelberg leader s finally we consider a game with firms choosing whether to reveal their outputs which includes stackelberg and cournot as possible outcomes the equilibrium is stackelberg

excise gap and price in the italian cigarette industry we provide evidence that tax shifts in the italian cigarette industry are not homogeneous across price categories and are associated with differences in the excise structure we take the gap betwee

endogenous timing in duopoly games stackelberg or cournot equilibria abstract simultaneous versus sequential play is studied in an extended game in a preplay stage players decide whether to select actions in the basic game at the first opportunity or to wait until observing their rivals first period actions in one extended game players first decide when to select actions without committing to actions in the basic game the equilibrium has a simultaneous play subgame unless payoffs in a sequential play subgame pareto dominate those payoffs in another extended game deciding to select at the first turn requires committing to an action both sequential play outcomes are the equilibria only in undominated strategies

evaluation of four tax reforms in the united states labor supply and welfare effects for single mothers an emerging consensus is that labor force participation is more responsive to taxes and transfers than hours worked to understand the implications of participation responses for the welfare analysis of tax reform this paper embeds this margin of labor supply in an explicit welfare theoretic framework we apply the framework to examine the welfare effects on single mothers in the united states following four tax acts passed in 1986 1990 1993 and 2001 we propose a simulation method combining features of fully structural microsimulation studies and simple deadweight loss calculations our approach accounts for the observed heterogeneity in the microdata but is simple to implement because we do not need to specify utility functions and estimate utility parameters we find that each of the four tax acts created substantial welfare gains and that the gains were concentrated almost exclusively on the participation margin our results imply that standard approaches not modeling the participation decision can make large errors

estimating labour supply responses using tax reforms the 1980 s tax reforms and the changing dispersion of wages offer one of the best opportunities yet to estimate labor supply effects nevertheless changing sample composition aggregate shocks the changing composition of the tax paying population and discontinuities in the tax system create serious identification and estimation problems we develop grouping estimators that address these issues our results reveal positive and moderately sized wage elasticities we also find negative income effects for women with children

endogenous stackelberg leadership abstract we consider a linear quantity setting duopoly game and analyze which of the players will commit when both players have the possibility to do so to that end we study a two stage game in which each player can either commit to a quantity in stage 1 or wait till stage 2 we show that committing is more risky for the high cost firm and that consequently risk dominance considerations as in harsanyi and selten 1988 allow the conclusion that only the low cost firm will choose to commit hence the low cost firm will emerge as the endogenous stackelberg leader journal of economic literature classification numbers c72 d43

subsidised training and youth employment distinguishing unobserved heterogeneity from state dependence in labour market histories using the 1990 2 wave of the french labour force survey to study the employment histories of young people i consider transitions between six labour market states employment contracts whether permanent or temporary unemployment training education and non participation i use a fixed effect estimator in a dynamic multinomial logit model which can accommodate any form of unobserved heterogeneity in levels this analysis can be extended to markov processes of any order i relate heterogeneity components to individual and family characteristics by using simulated maximum likelihood methods these procedures allow evaluation of the effects training schemes have on youth employment histories

a comparison of the labor supply findings from the four negative income tax experiments between 1968 and 1982 the united states federal government sponsored four negative income tax experiments this paper provides a set of consensus estimates of the labor supply responses to these experiments it is found that despite the wide range of treatments and evaluation methodologies the results are remarkably consistent on average husbands reduced labor supply by about the equivalent of two weeks of full time employment wives and single female heads reduced labor supply by about the equivalent of three weeks of full time employment youth reduced labor supply by about the equivalent of four weeks of full time employment estimated income and substitution effects are quite similar to those obtained from nonexperimental studies

estimating tax incidence market power and market conduct the european cigarette industry abstract recent theoretical work has shown that the incidence of ad valorem and specific taxes may differ and each may be over or under shifted onto consumers in the presence of imperfect competition these results are used to derive a method of estimating market power and conduct an application is made to the european cigarette industry previous empirical comparison of the incidence of ad valorem and specific taxes is limited for a group of countries with broadly similar cigarette industries there is evidence of undershifting of both taxes with the specific tax having a significantly greater impact on price the extremes of both perfect competition and monopoly can be rejected behaviour is no less competitive than the equivalent of cournot

free entry and social inefficiency our goal is to provide a simple yet general exposition of the conditions under which the number of entrants in a free entry equilibrium is excessive insufficient or optimal our analysis compares the number of firms that enter a market when there is free entry with the number that would be desired by a social planner who is unable to control the behavior of firms once they are in the market that is we consider the second best problem of choosing the welfare maximizing number of firms while we take as given their noncompetitive behavior after entry we demonstrate that the crucial conditions for establishing the presence of an entry bias can be stated quite simply in terms of the outcome of the postentry game played by entrants in contrast to previous work we do not need to model this postentry game explicitly

existence and persistence of price dispersion an empirical analysis the hebrew university of jerusalem and nber using a unique data set on store level monthly prices of four homogenous products sold in israel i study the existence and characteristics of the dispersion of prices across stores as well as its persistence over time i find that price dispersion prevails even after controlling for observed and unobserved product heterogeneity moreover intra distribution mobility is significant stores move up and down the cross sectional price distribution thus consumers cannot learn about stores that consistently post low prices as a consequence price dispersion does not disappear and persists over time as predicted by varian s 1980 model of sales

welfare the earned income tax credit and the labor supply of single mothers during 1984 1996 welfare and tax policy were changed to encourage work by single mothers the earned income tax credit was expanded welfare benets were cut welfare time limits were added and welfare cases were terminated medicaid for the working poor was expanded as were training programs and child care during this same time period there were unprecedented increases in the employment and hours of single mothers we show that a large share of the increase in work by single mothers can be attributed to the eitc and other tax changes with smaller shares for welfare benet cuts welfare waivers training programs and child care programs

heterogeneity in the tax pass through to spirit retail prices evidence from belgium abstract on 1st november 2015 the belgian government increased the excise tax on alcoholic beverages for spirits with 40 of alcohol and bottle size of 70 cl this tax change is equivalent to an amount of 2 43 per bottle of spirits this paper studies the impact of this tax reform at the store level on the posted retail price of six major brands of spirits using a difference in differences method the estimation is based on a balanced panel of scanner data from a major supermarket chain with a 33 market share and uses the retail prices of the same brands sold in france by the same supermarket chain as a control group having information on each store location we show spatial variations in the tax pass through for homogeneous products we find that these variations are strongly related to the intensity of local competition and to a lesser extent to the proximity to the borders mainly with luxembourg which is the low price country we find that the tax was quickly passed through during the first month of tax implementation and that it was mostly over shifted however we also find that both the border and the competition effects are not instantaneous but arise several months after the tax reform these findings have important implications for alcohol control policies as they highlight that the incidence of alcohol taxation can vary greatly across space and affect differently households depending on where they live

taxation and welfare in an oligopoly with strategic commitment this paper establishes comparative statics results for an oligopoly model with strategic commitment firms compete in two stages in the first stage firms decide on strategic cost reducing r d investment whereas they choose output in the second stage taking an excise tax subsidy as a shift parameter in the second stage game the short run as well as long run effects on output cost reducing r d investment and second best welfare will be examined the crucial role played by the strategic substitutability of outputs as well as cost reducing r d investments is clarified and a variant of the le chatelier samuelson principle in the authors game theoretic model is obtained copyright 1992 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

endogenous preemption on both sides of a market abstract we study a market in which both buyers and sellers can decide to preempt and set their quantities before market clearing will this lead to preemption on both sides of the market only one side of the market or to no preemption at all we find that preemption tends to be asymmetric in the sense that it is restricted to only one side of the market buyers or sellers

are alcohol tax hikes fully passed through to prices evidence from alaska on 1 october 2002 the state of alaska increased taxes on malt beverages from 0 35 per gallon to 1 07 per gallon increased taxes on wine from 0 85 per gallon to 2 50 per gallon and increased taxes on distilled spirits from 5 60 per gallon to 12 80 per gallon the net effect is that the tax on a standard serving rose from about 3 cents for beer 2 cents for wine and 4 cents for spirits to a uniform tax of 10 cents per standard serving of each type of alcohol beverage this paper uses primary data on alcoholic beverage prices in alaska to study a very basic question what was the impact of the tax hikes on prices an alcohol tax hike is often viewed as a public health policy tool to discourage excessive alcohol consumption and alcohol related problems such as drunk driving the impact of a tax hike on alcoholic beverage prices is a key link in the chain of the causality from the tax to public health economic theory and previous empirical studies mainly of taxes on goods other than alcoholic beverages do not provide very much guidance on what to expect following a tax hike it is an empirical question to answer the question i conducted telephone surveys just before and a year after the tax hike of on premise and off premise alcohol retail establishments across alaska

labour market institutions and employment in france the purpose of this paper is to use individual data to study how the minimum wage and the welfare system combine to affect employment in france using the 1997 labour force survey we decompose non employment of married women into three components voluntary classical due to the minimum wage and other a residual category we find that the minimum wage explains close to 15 of non employment for these women and that the disincentive effects of some welfare policy measures may be large our approach also allows us to evaluate various labour and welfare policy experiments in their effects on participation and employment copyright 2002 john wiley sons ltd

the impact of a soda tax on prices evidence from french micro data abstractbased on an original data set of more than 500 000 non alcoholic beverage price records we evaluate the impact on consumer prices of the soda tax an excise on drinks with added sugar or sweetener introduced in france in january 2012 we adopt a difference in differences approach and find that the tax was gradually passed through to the prices of the taxed beverages after 6 months of its introduction it was fully shifted to soda prices and almost fully shifted to the prices of fruit drinks while the pass through for flavoured waters was incomplete we also find that the pass through was heterogeneous across brands and retail groups

up the average cost curve inefficient entry and the new protectionism abstract a two country model is developed in which each country produces one good with increasing returns the goods being perfect or imperfect substitutes with cournot nash behavior and free entry certain restrictive trade policies have effects opposite to their favorable effect under noentry assumptions import tariffs and export subsidies lead to inefficient entry that raises rather than decreases the average production cost of and price charge by the domestic industry with negative welfare consequences we argue that these predictions of our model are closely consistent with extensive canadian data on entry exit and firms responses to trade liberalization

labor supply and taxation in france this paper provides sequential labor supply estimates for french married men and women under specifications analogous to those used by hausman to account for the effects of taxation upon the budget constraint results suggest that even though labor force participation follows the expected pattern work hours are quite rigid most of the variation in the latter being attributed to measurement errors the second part of the paper concentrates on the simultaneous estimation of male and female labor supply conditional maximum likelihood techniques are shown to permit the separate estimation of work hours for both spouses with an appropriate set of instruments aimed at correcting for the biases arising from simultaneity selectivity and the nonlinearity of the budget constraint although consistent the resulting estimates apparently contradict the usual rationality restrictions on family labor supply behavior and seem to confirm the lack of flexibility in work hours

excise tax avoidance the case of state cigarette taxes we conduct an applied welfare economics analysis of cigarette tax avoidance we develop an extension of the standard formula for the optimal pigouvian corrective tax to incorporate the possibility that consumers avoid the tax by making purchases in nearby lower tax jurisdictions to provide a key parameter for our formula we estimate a structural endogenous switching regression model of border crossing and cigarette prices in illustrative calculations we find that for many states after taking into account tax avoidance the optimal tax is at least 20 smaller than the standard pigouvian tax that simply internalizes external costs our empirical estimate that tax avoidance strongly responds to the price differential is the main reason for this result we also use our results to examine the benefits of replacing avoidable state excise taxes with a harder to avoid federal excise tax on cigarettes

youth employment policies in france abstract in this paper we present a summary of recent microeconometric results on the evaluation of the effects of active labor market policies on youth employment in france we focus our discussion on three types of policies 1 youth employment schemes for out of employment and low skilled young adults 2 on the job training schemes 3 payroll tax subsidies for minimum wage workers training programs for unemployed young workers have in general no effects on post training wages or employment probabilities except if they have a large training content in contrast the reduction of labor costs have significant effects on employment probabilities of low wage workers however their effects appear to be stronger for workers between 25 and 30

optimal income transfer programs intensive versus extensive labor supply responses this paper analyzes optimal income transfers for low incomes labor supply responses are modeled along the intensive margin intensity of work on the job and along the extensive margin participation into the labor force when behavioral responses are concentrated along the intensive margin the optimal transfer program is a classical negative income tax program with a substantial guaranteed income support and a large phasing out tax rate however when behavioral responses are concentrated along the extensive margin the optimal transfer program is similar to the earned income tax credit with negative marginal tax rates at low income levels and a small guaranteed income carefully calibrated numerical simulations are provided

efficient excise taxation the evidence from cigarettes we develop a model in which optimizing policy makers in adjacent government jurisdictions levy excise taxes on a commodity that has a unique point of production from which all shipments emanate from this model we derive an unusually specific predicted geographical pattern of those excise taxes in which these taxes rise at a decreasing rate as one moves outward from the point of production we compare these predictions to the observed pattern of cigarette taxes imposed by state governments in the united states and find the data to be fully consistent with our model among these predictions is the existence of a ripple effect which reduces taxes in many other jurisdictions due to low taxes at the point of production we estimate that these induced tax reductions in other states save cigarette producers and consumers a minimum of 110 million per year

entry barriers and economic welfare the relationship between economic welfare and the number of firms in a quasi cournot market is examined in the first place we presuppose the existence of a strong first best government that can enforce the marginal cost principle to the firms along with regulating the number of firms it is shown that there exist excessive number of firms at the free entry quasicournot equilibrium vis a vis the first best welfare maximizing number of firms the thrust of this result essentially survives even if we replace a utopian first best government by a secondbest government that leaves the firms to pursue their respective profit maximization freely and engages solely in regulating the number of firms it can be shown that the excess entry prevails again in this second best world recent studies in the theoretical industrial organization literature have uncovered several instances which cast serious doubt on the reasonableness of a widespread belief that increasing competition will increase welfare stiglitz 1981 p 184 it has been shown that there are cases which are not altogether unreasonable where social welfare will be increased by strengthening rather than weakening the protection of incumbent firms from the threat of potential entry this is in sharp contrast with the traditional belief 2 what is not known however is how robust these pathologies in fact are we intend to settle this problem by proving two excess entry theorems in the quasi cournot parametric conjectural variations homogeneous oligopoly model seade 1980a b in the first place we presuppose the existence of a strong first best government that could costlessly enforce the marginal cost pricing principle by firms in an oligopolistic market and regulate entry in pursuit of first best social welfare optimization it is shown that the number of firms at the free entry equilibrium exceeds the first best welfare optimizing number of firms the result has already been noted by von weizsacker 1980a b and others in terms of numerical examples our theorem 1 asserts that this phenomenon always holds true for the family of quasi cournot models at hand an implication of this result is that the existence of entry barriers which protect incumbent firms from potential competitors is not necessarily welfare decreasing in sharp contrast with the traditional belief a problem remains with theorem 1 however in that an omnipotent first best government does not exist in reality and the first best ideal is unrealizable in the actual economy therefore even if the intervention by a first best government with a view to restricting the number of firms within an industry may be welfare improving it does

quantity setting oligopoly with endogenous sequencing abstract this paper investigates endogenous sequencing in a quantity setting oligopoly i formulate an n firm m period model where each firm chooses both how much to produce and when to produce it i find that at least n 1 firms simultaneously produce in the first period in every pure strategy equilibrium this result shows that the generalized stackelberg type outcome never appears in equilibrium except in a duopoly

consumption taxes in a life cycle framework are sin taxes regressive we construct measures of tax incidence over the life cycle and compare these measures to traditional measures based on annual data annual measures of the incidence of taxes on consumption goods may differ from life cycle measures for three reasons first annual measures of income reflect transitory components which should have smaller effects on consumption than permanent changes in income second income measured in a single period differs from lifetime income due to age related differences in earnings third consumption of certain items follows life cycle patterns independent of changes in income surprisingly we find that these effects cause little change in the assessment of the incidence of taxes on cigarettes for alcohol we find that a tax on its consumption is slightly less regressive when measured with respect to lifetime income than when measured with respect to annual income copyright 1995 by mit press

who pays cigarette taxes the impact of consumer price search abstract we conduct an empirical study of the impact of consumer price search on the shifting of cigarette excise taxes to consumer prices we use novel data on the prices that smokers report paying and document substantial price dispersion we find that cigarette taxes are shifted at lower rates to carton buyers and especially smokers who buy cartons of cigarettes in a state other than their state of residence we also find evidence that taxes are shifted at somewhat lower rates to the prices paid by heavier smokers and at somewhat higher rates to the prices paid by smokers of light cigarettes

single women s labor supply elasticities trends and policy implications this paper uses cps data to examine changes in single women s labor supply elas ticities in recent decades specifically the authors investigate trends in how single women s hours of work and labor force participation rates responded to both wages and income over the years 1979 2003 results from the base specification suggest that over the observation period hours wage elasticities decreased by 82 participation wage elasticities by 36 and participation income elasticities by 57 these results imply that changes in tax policy had a much larger effect on the labor supply and labor force participation behavior of women in this subpopulation in the early 1980s than in recent years i t is well documented that over the past few decades female labor force behavior has undergone substantial changes women s labor force participation rates have increased markedly as have their annual hours of work at the same time the marital composition of women has undergone a substantial change as well with the proportion of married women falling steadily over time as a result single women comprise a greater share of the labor force than in earlier years and hence their behavioral responses to changes in wages and incomes carry even greater importance for the effects of changes in tax and transfer policies despite the large increase in the number of single women over the past decades single women s labor supply behavior has received

commodity taxation and imperfect competition a note on the effects of entry abstract this paper looks at the effects of allowing the number of firms to vary in seade s model of oligopoly and taxation we show that the normative and positive consequences of a specific commodity tax are affected by entry in significant ways

perfect competition urbanization and tax incidence in the retail gasoline market i introduction in applied tax incidence studies it is typically assumed that prices respond one for one to changes in sales and excise taxes chernick and reschovsky 1997 pechman 1985 shepard 1976 state of wisconsin department of revenue 2004 wiese rose and schluter 1995 zupnick 1975 is this assumption reasonable despite the fundamental role of tax incidence in the study of public finance there is surprisingly little empirical analysis that sheds light on who bears the burden of taxes in this article we examine the incidence of state gasoline excise taxes using monthly price data for all 50 states in the united states over the period 1984 1999 our estimation results generally indicate full shifting of gasoline taxes to the final consumer with changes in gasoline taxes fully reflected in the tax inclusive gasoline price almost instantly we also find that the incidence of excise taxes depends on the competitiveness of retail gasoline markets e g urban vs rural markets gasoline markets in urban states typically exhibit full shifting but those in rural states demonstrate somewhat less than full shifting although the issue of sales and excise tax incidence has received considerable attention over the years most research has focused on tax incidence theory and the standard conclusion of much of this theoretical analysis is that consumers bear the full burden of any sales and excise taxes 1 based primarily on this theoretical foundation most applied incidence studies assume that sales and excise taxes are fully reflected in consumer prices and the distribution of tax burdens across income classes necessarily reflects this assumption however actual empirical testing of this assumption of full forward shifting has been surprisingly sparse 2 in important recent research poterba 1996 and besley and rosen 1999 have conducted empirical analyses of the incidence of excise taxes poterba 1996 uses city specific clothing and personal care price data covering the 1947 1977 and the 1925 1939 periods to examine the degree to which state and local retail sales taxes are shifted to consumers with two data sets based on bureau of labor statistics bls city specific consumer price indices using these bls data on tax inclusive prices poterba 1996 constructs quarterly price indices for each of 28 standard metropolitan statistical areas smsas many of these 28 smsas experienced significant changes in sales tax rates and poterba 1996 uses these tax shocks to determine the incidence of sales taxes his estimation results are somewhat variable but in general he finds for the postwar period that taxes are fully shifted to consumers in some cases he finds limited evidence of overshifting although it is never possible to reject the null hypothesis that prices rise point for point with the changes in the tax and he also finds that full shifting typically though not always occurs in the first quarter of the tax change poterba 1996 also examines tax incidence for individual smsas during the depression era and his results indicate significant differences across metropolitan areas in the degree of tax shifting for example prices on women s clothing in chicago show significant overshifting but atlanta shows negative shifting a result that does not seem plausible besley and rosen 1999 also examine the incidence of sales taxes using price data for 12 narrowly defined commodities in 155 different u s cities using quarterly price data for the period 1982 1990 issued by the american chamber of commerce researchers association accra 3 they not only find full shifting for a number of commodities but also find overshifting for more than half the products a result they attribute to imperfect competition in the retail sector while this recent empirical research has significantly expanded our understanding of the actual nature of sales and excise tax incidence we believe that our work here on gasoline excise taxes makes several contributions to the empirical literature

consumption taxes and corporate investment consumers nominally pay the consumption tax but theoretical and empirical evidence is mixed on whether corporations partly shoulder this burden thereby affecting corporate investment using a quasi natural experiment we show that consumption taxes decrease investment firms facing more elastic demand decrease investment more strongly because they bear more of the consumption tax we corroborate the validity of our findings using 86 consumption tax changes in a cross country panel we document two mechanisms underlying the investment response reduced firms profitability and lower aggregate consumption importantly the magnitude of the investment response to consumption taxes is similar to that of corporate taxes received september 25 2017 editorial decision august 26 2018 by editor wei jiang authors have furnished an internet appendix which is available on the oxford university press web site next to the link to the final published paper online

tax changes and cigarette prices the recurring question of the difference between specific and ad valorem taxes has recently been revived by barzel 1976 who argued p 1185 that when quality is not fully controlled the effects of the two types of taxes differ radically the excise tax induces a substitution of quality for quantity resulting in a greater increase in the price per unit than predicted by the constant quality model the ad valorem tax induces a reduction in quality and lower after tax price than predicted evidence consistent with these hypotheses is found in the response of cigarette prices to tax changes in the further tests reported by johnson 1978 prices rise significantly less than the tax in new hampshire where the state tax was ad valorem and significantly more in the remaining states which impose specific taxes the purpose of this note is to question not barzel s analysis but rather the interpretation of the evidence on the pedestrian grounds of implausibility as barzel himself observes p 1194 n 32 the size of new hampshire makes it unlikely that cigarettes would be tailormade for it the scope for removing characteristics is quite limited then the scope for adding characteristics in other states seems equally limited to avoid misunderstanding it should be emphasized that the hypothesized variations in quality are a supply side phenomenon not a demand side response to the relative cheapening of superior brands when a specific tax is increased johnson s estimates imply that the 90 increase in the new hampshire tax over the period 1954 76 should have reduced the net price by 3 6 ceteris paribus the slightly larger mean tax increase in the remaining 48 continental states should have raised net price by 0 90 what changes in the quality of the services sold with cigarettes could have justified such a differential what are the observable counterparts of the tax changes in the absence of a convincing answer to those questions the estimated response of cigarette prices to taxes represents a fact in search of a theory

the effect of social benefits on youth employment combining regression discontinuity and a behavioral model natural experiments provide robust identifying assumptions for the estimation of policy effects yet their use for policy design is often limited by the difficulty of extrapolating on the basis of reduced form estimates in this study we exploit an age condition in the eligibility for social assistance in france which lends itself to a regression discontinuity rd design we suggest making the underlying labor supply model explicit that is translating the reduced form discontinuity in terms of discontinuous changes in disposable incomes this exercise shows the potential of combining natural experiments and behavioral models in particular we can test the external validity of the combined approach we find that it predicts the effect of a subsequent reform which extends transfers to the working poor remarkably well the model is then used to simulate the extension of social assistance to young people and finds that a transfer program with an in work component would not create further disincentives to work in this population

evaluating the impact of the french tax credit on the employment rate of women abstract this paper investigates the employment impact of a new tax credit programme that was put in place in france in 2001 according to the theoretical labour supply model tax credits will have a positive effect on individual labour market participation as they increase the rewards from work however tax credits may discourage married women s participation mainly due to income effects we analyse the introduction of the french measure by adopting a non experimental evaluation method various treatment and control groups are defined the first specification adopted relies on the policy eligibility rules for the construction of the control and treatment groups the others hinge respectively on marital status for women in couple households and on the presence of children for single women we find evidence of a negative employment effect for married women with a reduction of about three percentage points in the employment rate after the introduction of the policy in particular it seems to be the conditioning on total household resources that discourages married women s labour market participation on the contrary the employment impact of the measure is positive for cohabiting women and twice as large the policy effect is very small and statistically not significant for single women the net impact of the introduction of the tax credit on the total employment of women is very marginal amounting to the creation of about two thousand new jobs