competitive cross subsidization this paper analyzes competitive pricing policies by multiproduct firms facing heterogeneous buying patterns we show that cross subsidization arises when firms have comparative advantages on different products but are equally efficient overall firms earn a profit from multi stop shoppers by charging positive margins on their strong products but as price competition for one stop shoppers drives total margins down to zero they price weaker products below cost banning below cost pricing leads to higher profits and higher prices for one stop shoppers and may reduce consumer surplus as well as total social welfare

international institutions and the volatility of international trade during the past half century states have established a large number of international trade institutions both multilateral and regional in scope the existing literature on this topic emphasizes that these agreements are chiefly designed to liberalize and increase the flow of overseas commerce yet such institutions have another function that has been largely ignored by researchers namely reducing volatility in trade policy and trade flows exposure to global markets increases the vulnerability of a country s output to terms of trade shocks governments seek to insulate their economies from such instability through membership in international trade institutions particularly the world trade organization wto and preferential trading arrangements ptas we hypothesize that these institutions reduce the volatility of overseas commerce we further hypothesize that because market actors prefer price stability trade institutions increase the volume of foreign commerce by reducing trade variability this article conducts the first large scale multivariate statistical tests of these two hypotheses using annual data on exports for all pairs of countries from 1951 through 2001 the tests provide strong support for our arguments ptas and the wto regime significantly reduce export volatility in so doing these institutions also increase export levels

the effect of tax treaties on multinational firms new evidence from microdata this paper uses affiliate level data from swedish multinationals to examine the impact of tax treaties on both overall affiliate sales and the composition of those sales in line with previous results we find little evidence for an effect of treaties on the level of total sales we do however find that a tax treaty increases the probability of investment by a firm in a given country in addition we find that a treaty reduces exports to the parent but increases imports of intermediate inputs from the parent this is consistent with treaties increasing the effective host tax this suggests that tax treaties impact the behavior of multinationals along some dimensions but not along others

is there a glass ceiling in sweden using 1998 data we show that the gender log wage gap in sweden increases throughout the wage distribution and accelerates in the upper tail we interpret this as a strong glass ceiling effect we use quantile regression decompositions to examine whether this pattern can be ascribed primarily to gender differences in labor market characteristics or in the rewards to those characteristics even after extensive controls for gender differences in age education both level and field sector industry and occupation we find that the glass ceiling effect we see in the raw data persists to a considerable extent

the role of firm size in bilateral bargaining a study of the cable television industry we examine the effect of buyer merger on bilateral negotiations between a supplier and n buyers merger may have bargaining effects in addition to the usual efficiency effects the effect of merger on the buyers bargaining position depends on the curvature of the supplier s gross surplus function merger enhances worsens the buyers bargaining position if the function is concave convex based on a panel of advertising revenue in the cable television industry our estimates indicate that the gross surplus function for suppliers of program services is convex this result suggests that cable operators integrate horizontally to realize efficiency gains rather than to enhance their bargaining position vis a vis program suppliers

demand information and competition why do food prices fall at seasonal demand peaks prices for seasonal food products fall at demand peaks price declines are not driven by falling agricultural input prices indeed farm to retail margins narrow sharply i use electronic scanner data from a sample of us supermarkets to show that seasonal price declines are closely linked to market concentration and are much larger in markets with several rivals than where a single brand dominates seasonal demand increases reduce the effective costs of informative advertising and increased informative advertising by retailers and manufacturers in turn may allow for increased market information and greater price sensitivity on the part of buyers

returns to regionalism an analysis of nontraditional gains from regional trade agreements the past decade has witnessed a renewed interest in regional trade agreements with many policymakers and academics seeming to believe that these provide more than the traditional gains from trade this article examines several possible benefits that regional trade agreements may confer on their partners including credibility signaling bargaining power insurance and coordination it assesses the necessary conditions for each possible channel to work gives stylized examples of specific types of policy where the benefit might be applicable examines cases where the explanation might be relevant and discusses their overall plausibility it concludes by examining the north american free trade agreement and the europe agreements

discrete equilibrium price dispersion an explicit solution of an equilibrium model with price setting firms and searching customers makes possible a number of comparativestatics predictions about how cost differences among firms search costs of customers and taxes will affect the mean and variance of the distribution of market prices another implication of the model is that a firm s demand depends on the difference between its price and the average price in the market

endogenous market structures in international trade natura facit saltum abstract almost all of the large literature on international trade with imperfect competition assumes exogenous market structures the purpose of this paper is to develop a simple model that generates alternative market structures as nash equilibria for different parameterizations of the basic model equilibrium market structure is a function of the underlying technology familiar configurations such as a duopoly competing in exports or a single multinational producing in both markets arise as special cases small tax policy changes can produce large welfare effects as the equilibrium market structure shifts implying discontinuous jumps in prices quantities and profits

counterfactual decomposition of changes in wage distributions using quantile regression we propose a method to decompose the changes in the wage distribution over a period of time in several factors contributing to those changes the method is based on the estimation of marginal wage distributions consistent with a conditional distribution estimated by quantile regression as well as with any hypothesized distribution for the covariates comparing the marginal distributions implied by different distributions for the covariates one is then able to perform counterfactual exercises the proposed methodology enables the identification of the sources of the increased wage inequality observed in most countries specifically it decomposes the changes in the wage distribution over a period of time into several factors contributing to those changes namely by discriminating between changes in the characteristics of the working population and changes in the returns to these characteristics we apply this methodology to portuguese data for the period 1986 1995 and find that the observed increase in educational levels contributed decisively towards greater wage inequality copyright 2005 john wiley sons ltd

the timing and magnitude of retail store markdowns evidence from weekends and holidays we examine daily prices of eight goods at seventeen retail stores collected in ann arbor michigan over a four month period from november 1 to february 28 we focus on weekly and seasonal price patterns and on the frequency of price markdowns or sales there were frequent markdowns in the intensive shopping period prior to christmas and a tendency for such sales to occur on weekends we interpret these findings as evidence that a significant number of markdowns are timed to occur when shopping intensity is exogenously high we complement the imperfect information based motives for sales in the literature by contributing an additional element based on the role of bulk shopping and increasing returns in the shopping technology

insurer hospital bargaining negotiated discounts in post deregulation connecticut this paper uses unique data from the state of connecticut to examine discounting patterns in the state s hospital industry for the years following deregulation 1995 1998 the data provide a rare opportunity to study payer level differences in negotiated discounts for hospital services in addition to presenting descriptive evidence on how discounts vary across payers payer types and hospital types this study uses matched revenue data to analyze the economic determinants of discount magnitudes payer size appears to affect bargaining power but the economic significance of the effect is small the data exhibit patterns consistent with a bargaining explanation in which discount magnitudes depend critically on payers abilities to channel patients to hospitals with which favorable discounts have been negotiated

a bit is better than a lot bilateral investment treaties and preferential trade agreements the landscape of the global economy is dotted with institutions that regulate investment and trade in recent years the number of bilateral investment treaties bit s and preferential trade agreements pta s in particular has grown at a torrid pace practically every country is a member of at least one if not many of these institutions for all the scholarly attention that these institutions have received however there is little research tying bit s and pta s together this is surprising since both aim to increase commerce by making it more predictable the authors seek to fill this gap in the literature they argue that a bit between a developed and a developing country should make it more likely that this pair of states will subsequently form a pta that said the wrinkle in the story is that more is not better in this regard the authors further argue that a developing country that has many bit s is less likely to conclude a pta with a wealthy state the authors test these hypotheses using annual data on pairs of developing and developed countries between 1960 and 2004 and find strong evidence in support of their argument

inelastic buyers and competition we precisely measure how competition limits the capacity of sellers to appropriate surplus from less elastic consumers the evidence originates from pricing strategies of italian pharmacists in response to exogenous inflows of parents of newborn babies among their buyers population based laws allow us to use a rdd to compare different competitive environments while more newborn babies have no effect on the price of hygiene products under intense competition we observe a price increase when competition is low this effect is not driven by increasing costs because for diapers demanded by newborns only we see no effect independently of competition this article is protected by copyright all rights reserved

is there a glass ceiling over europe exploring the gender pay gap across the wages distribution using harmonised data from the european union household panel we analyse gender pay gaps by sector across the wages distribution for ten countries we find that the mean gender pay gap in the raw data typically hides large variations in the gap across the wages distribution we use quantile regression qr techniques to control for the effects of individual and job characteristics at different points of the distribution and calculate the part of the gap attributable to differing returns between men and women we find that first gender pay gaps are typically bigger at the top of the wage distribution a finding that is consistent with the existence of glass ceilings for some countries gender pay gaps are also bigger at the bottom of the wage distribution a finding that is consistent with sticky floors third the gender pay gap is typically higher at the top than the bottom end of the wage distribution suggesting that glass ceilings are more prevalent than sticky floors and that these prevail in the majority of our countries fourth the gender pay gap differs significantly across the public and the private sector wages distribution for each of our eu countries

power politics and international trade r recent literature attributes the relative scarcity of open international markets to the prisoner s dilemma structure of state preferences with respect to trade we argue that the prisoner s dilemma representation does not reflect the most critical aspect of free trade agreements in an anarchic international system namely their security externalities we consider these external effects explicitly doing so leads us to two conclusions 1 free trade is more likely within rather than across political military alliances and 2 alliances are more likely to evolve into free trade coalitions if they are embedded in bipolar systems than in multipolar systems using data drawn from an 80 year period beginning in 1905 we test these hypotheses the results of the analysis make it clear that alliances do have a direct statistically significant and large impact on bilateral trade flows and that this relationship is stronger in bipolar rather than in multipolar systems in the early 1970s students of international relations began what would become a long and heated debate about the political correlates of open international markets recently however an important element of consensus has begun to emerge most contributors to this debate now seem to agree that the prisoner s dilemma structure of state preferences with respect to trade explains the relative dearth of open international markets here we argue that what has become the standard prisoner s dilemma representation neglects the most critical aspect of free trade agreements in the anarchic international system namely their security externalities we consider these external effects explicitly in order to do so we construct and analyze a simple game theoretic model the results of this analysis demonstrate that tariff games between allies differ systematically from those played between actual or potential adversaries these differences imply that free trade is more likely within rather than across political military alliances however our analysis also suggests that the evolutionary prospects of alliances vary those that are the products of bipolar systems are more likely to evolve into free trade coalitions than are their multipolar counterparts less credible exit threats and clearer responsibilities for alliance stability explain the advantage of a bipolar system we test this argument using data drawn from an 80 year period beginning in 1905 the empirical analysis supports our argument it demonstrates that alliances have a direct statistically significant and large effect upon bilateral trade moreover it shows that on average alliances have a much stronger effect on trade in a bipolar than in a multipolar world 2

does trade liberalization lead to environmental burden shifting in the global economy abstract does trade liberalization lead to the outsourcing of pollution from industrialized countries to developing countries according to the pollution haven hypothesis international trade is a key channel through which richer countries can geographically dissociate consumption from production of goods we examine whether and how trade liberalization via preferential trade agreements ptas facilitates the shifting of consumption based environmental burdens from developed countries via imports to poorer countries via exports based on panel data analysis of 183 countries from 1987 to 2013 we find partial evidence for trade induced environmental burden shifting while we observe an increase in footprint exports from low income countries when these countries liberalize trade this is not matched by an increase in footprint imports of high income countries our results also show that environmental clauses in ptas and participation in international environmental agreements do not influence the relationship between trade liberalization and ecological footprint movements however domestic institutions have a significant effect on the trade induced distribution of environmental burdens these findings suggest that ptas as a policy tool for trade liberalization are per se unlikely to induce exploitation of low income countries natural capital by wealthier nations however they suggest that political incentives inherent to democratic institutions encourage environmental burden shifting

patent protection innovation and technology transfer in a schumpeterian economy abstract this paper analyzes the cross country effects of intellectual property rights ipr protection on the relative wage innovation and technology transfer in a north south quality ladder model with innovative northern r d and adaptive southern r d the degree of ipr protection in two countries differs in terms of patent breadth which determines the markups of northern firms and their southern affiliates respectively in this model stronger ipr protection in the south leads to a permanent decrease in the north south wage gap a temporary increase in the northern innovation rate and a permanent increase in technology transfer by contrast stronger ipr protection in the north leads to a permanent increase in the north south wage gap ambiguous effects on the northern innovation rate and a permanent decrease in technology transfer finally we perform a quantitative analysis by calibrating the model to the us china data and the numerical results support these policy implications in addition to a welfare implication such that strengthening patent protection in one country leads to sizable welfare improvements in both countries

sales and firm entry the case of wal mart temporary price reductions or sales have become increasingly important in the evolution of the price level we present a model of repeated price competition to illustrate how entry causes incumbents to alternate between high and low prices using a six year panel of weekly observations from a grocery chain we find that individual stores employ more sales as the distance to wal mart falls moreover the increase in the frequency of sales was concentrated on the most popular products suggesting the use of a loss leader strategy

economic diplomacy and international trade asean s quest to value claim utilising economic diplomacy theory this study specifies a statistical model to reveal asean members capacity to negotiate better international trade outcomes examining imports into asean members from 134 nations between 1980 and 2001 we find that asean s diplomats were able to pursue more value claiming in economic diplomacy than expected while our results support the commonly accepted view in economic diplomacy that smaller nations are pressured to accept trade outcomes desired by larger nations we also find support for a new perspective smaller nations obtain more favourable trade outcomes as members of a regional trade bloc which cannot be achieved as individual nations we find that asean s conversion to a fully fledged regional trade agreement in 1992 significantly enhanced this capacity this study adds a different perspective to the substantial literature examining cases in trade and economic diplomacy

the political economy of ec regionalism abstract many observers have noted a recent proliferation of regional trade agreements primarily centred in or on europe the paper analyses the causes and consequences of ec regionalism it begins by examining the development and importance of the phenomenon it finds that although the ec maintains preferential trade arrangements with virtually all countries preferential trade accounts for no more than 25 of total ec trade the paper investigates the causes of ec regionalism focusing on the determinants of both the demand by third countries and the supply by the ec lastly it examines future options

unplanned purchases and retail competition i propose a framework in which consumers have biased beliefs about their future purchase probabilities leading them to make unplanned purchases us ing this framework i examine the phenomenon of below cost pricing and the welfare eects of banning it when the market is covered a ban on below cost pricing raises social surplus although consumers need not gain they are only guaranteed to ben et if the market is perfectly competitive when the market is not covered a ban always hurts at least some consumers also there is a pro competitive justica tion for the observation that larger rms sometimes charge below cost on the core product lines of smaller rms consumer bias is crucial for this justication multi product retailers sometimes sell certain products beneath cost with the hope of at tracting additional customers who will also buy other higher margin items this practice often referred to as loss leading is controversial with below cost pricing having been banned in a number of countries including belgium germany france and ireland and in approximately half of all us states 1 many us cities also have such prohibitions in this article i examine the welfare consequences of prohibitions on below cost pricing in a market where multi product retailers compete for boundedly rational consumers who practice one stop shopping that is visit at most one store when rivals are symmetric and the market is covered so that all consumers shop a ban on loss leading raises social surplus but when the market is not covered a ban presents a social welfare tradeo fewer consumers choose to shop although those who do generate higher levels of social surplus perhaps surprisingly for those consumers who shop both before and after a ban a ban is guaranteed to make them better o if the market is perfectly competitive but otherwise may harm them taken together these results indicate that it is simplistic to argue that by limiting the scope of competition below cost pricing bans must hurt consumers and society but i also assess below cost pricing laws in the presence of asymmetric competition as when a large rm with a full product line competes against a small rm with a limited product

international competition in r d and technological leadership an examination of the posner hufbauer hypothesis abstract this paper develops a dynamic game theoretic model of international competition in r d to examine the posner hufbauer hypothesis that trade based on the generation and diffusion of superior technology is relatively disadvantageous to the technologically less advanced countries the impact of three forms of technological leadership technological endowments costs of r d and preemptive behavior on the outcome of the game provides some support for the hypothesis if the quasi rent period is sufficiently long and if the original technological follower reacts aggressively to increased r d rivalry the leader and the follower will switch positions in the later part of the game

foreign investment and technology transfer a simple model abstract this paper develops a model in which international technology transfer through foreign direct investment emerges as an endogenized equilibrium phenomenon resulting from the strategic interaction between subsidiaries of multinational corporations and host country firms the model explicitly recognizes two types of costs the costs to the multinational of transferring technology to its subsidiaries and the learning costs of domestic firms the analysis points to the importance of the learning efforts of host country firms in increasing the rate at which mncs transfer technology the paper also explores some of the reasons why learning investment in host country firms may be suboptimal

regulating a monopolist with unknown costs we consider the problem of how to regulate a monopolistic firm whose costs are unknown to the regulator the regulator s objective is to maximize a linear social welfare function of the consumers surplus and the firm s profit in the optimal regulatory policy prices and subsidies are designed as functions of the firm s cost report so that expected social welfare is maximized subject to the constraints that the firm has nonnegative profit and has no incentive to misrepresent its costs we explicitly derive the optimal policy and analyze its properties in their classic papers dupuit 2 and hotelling 5 considered pricing policies for a bridge that had a fixed cost of construction and zero marginal cost they demonstrated that the pricing policy that maximizes consumer well being is to set price equal to marginal cost and to provide a subsidy to the supplier equal to the fixed cost so that a firm would be willing to provide the bridge this first best solution is based on a number of informational assumptions first the demand function is assumed to be known to both the regulator and to the firm while the assumption of complete information may be too strong the assumption that information about demand is as available to the regulator as it is to the firm does not seem unnatural a second informational assumption is that the regulator has complete information about the cost of the firm or at least has the same information about cost as does the firm this assumption is unlikely to be met in reality since the firm would be expected to have better information about costs than would the regulator as weitzman has stated an essential feature of the regulatory environment i am trying to describe is uncertainty about the exact specification of each firm s cost function in most cases even the managers and engineers most closely associated with production will be unable to precisely specify beforehand the cheapest way to generate various hypothetical output levels because they are yet removed from the production process the regulators are likely to be vaguer still about a firm s cost function 12 p 684 as this observation suggests it is natural to expect that a firm would have better information regarding its costs than would a regulator the purpose of this paper is to develop an optimal regulatory policy for the case in which the regulator does not know the costs of the firm one strategy that a regulator could use in the absence of full information about costs is to give the firm the title to the total social surplus and to delegate the pricing decision to the firm in pursuing its own interests which would then be to maximize the total social surplus the firm would adopt the same marginal cost pricing strategy that the regulator would have imposed if the regulator had

a dynamic theory of countervailing power in this article i develop a model of an infinitely repeated procurement auction with one buyer and several sellers the buyer can accumulate a backlog of unfilled orders which similar to a boom in demand forces the sellers to collude on a low price to prevent undercutting if the buyer s cost of shifiing its consumption over time is low enough then the extent of collusion is bounded away from the joint profit maximizing level even for discount factors approaching one the model is extended to allow for multiple buyers large buyers are shown to obtain lower prices from the sellers buyer mergers increase pro t for all buyers not just the merging pair at the expense of the sellers in contrast buyer growth through addition harms buyers that do not grow and benefits sellers

the boundaries of multinational enterprises and the theory of international trade this paper begins with a review of empirical evidence on multinational firms conceptual underpinnings of a theory are developed relying in particular on the notion of knowledge capital as a mobile joint input into geographically separated production facilities this idea is embedded in a simple two country general equilibrium model that supports multinational production in equilibrium under conditions consistent with the empirical evidence the final section examines internalization and shows why certain properties of knowledge capital also imply a preference for transferring technologies internally within the firm rather than through arm s length markets

the rational design of international institutions international institutions are central features of modern international relations this is true of trade international debt and financial restructuring and even national security once the exclusive realm of pure state action it was certainly true of the two major military engagements of the 1990s the wars in kosovo and the persian gulf as international institutions have gained prominence in the political landscape they have increasingly become prominent topics for study the sharpest debate among researchers has been theoretical do international institutions really matter missing from this debate is a sustained inquiry into how these institutions actually work we shift the focus by posing researchable questions about how they operate and how they relate to the problems states face we begin with a simple observation major institutions are organized in radically different ways some are global essentially open to all states others are regional with restricted memberships some institutions give each state an equal vote whereas others have weighted voting and sometimes require supermajorities institutions may have relatively strong central authorities and significant operating responsibilities or be little more than forums for consultation some arrangements for example most bilateral treaties have no formal organizational structure these are plentiful because states have a striking tendency to codify their relationships in formal legal arrangements why do these differences exist do they really matter both for members and for international politics more generally do they affect what the institutions themselves can do we focus on these large questions of institutional design

compatibility of regional and multilateral trading agreements reforming the wto process while the pillar of the world trade organization wto with respect to trade in goods services and intellectual property is nondiscrimination the cornerstone of regional trading agreements is discrimination 2 there has been a proliferation of regional trading agreements in recent years twenty nine new agreements have been notified to the general agreement on tariffs and trade gatt and the wto since 1992 27 on merchandise trade and two on trade in services this is almost half the number of agreements still in existence and notified to gatt prior to 1992 all but three wto members are parties to at least one regional agreement and some are parties to many more it is therefore not surprising that there is renewed interest in whether regional agreements compete with or complement the multilateral trading system 4 while there may be no clear answer it cannot be denied that recent regional developments have major implications for the rules based multilateral trading system one such development is that tariff preferences have or will become relatively unimportant in many regional trading agreements the reasons for this include the high proportion of trade outside many preferential agreements the limits to the coverage of the tariff preferences themselves the high share of post uruguay round tariffs that will be bound at zero and the low level of most favorednation mfn tariffs faced by non preferencereceiving countries this development is accompanied by the fact that the scope of application of many agreements has extended well beyond tariff preferences to disciplines that were traditionally the domain of gatt or may in the future be dealt with by the wto the european union eu provides a good example despite the numerous countries receiving tariff preferences its largest trading partners are outside the network of these agreements in fact 45 percent of eu imports originate in non preference receiving countries e g 17 percent in the united states and 10 percent in japan while tariff preferences are of considerable potential importance with the implementation of uruguay round commitments 51 percent of the value of imports from non preference receiving countries will enter the eu under bound duty free tariff rates further the trade weighted tariff average on manufactured imports from these countries will be 3 1 percent 6 development division world trade organization geneva switzerland helpful comments from maria pillinini of the wto are gratefully acknowledged as are those of richard snape of monash university and industries commission australia the views expressed in this article are those of the author and not the organization for which he works the wto came into existence on 1 january 1995 to inter alia facilitate the administration of the wto agreements that emerged from the uruguay round one of which is the revised 1947 general agreement on tariffs and trade i e gatt 1994b 2 unless otherwise specified the term regional trading agreements refers to both customs unions and free trade areas for trade in goods the extent of discrimination in regional agreements is related to the ease of accession of non parties and the openness of the agreements in general the three are japan korea and hong kong there were 128 members of gatt and following the completion of domestic ratification and wto accession procedures there will be approximately 160 members of the wto in the next few years there are presently 120 members 4 there are many excellent contributions to this debate see for example richard snape et al 1993 jagdish bhagwati 1995 and wto 1995 trade between the 15 members of the eu accounts for 60 percent of total eu trade the eu offers contractual preferences to 26 countries under free trade association or cooperation agreements and to 70 countries under the lom6 convention it offers noncontractual preferences to 145 countries under the generalized system of preferences gsp 6 while tariffs on agricultural products are generally higher than those on manufactured goods the agricultural sector is typically dealt with outside eu preferential agreements

utilization of r d results in the home and foreign plants of multinationals this paper analyzes the utilization of r d results in the home and foreign plants of swedish multinational enterprises mnes the findings indicate that firms r d undertaken in the home country is used as an input in both the home and foreign plants of the mnes this suggests that technology is transferred to the foreign plants around four fifths of the gain in value added attributed to home r d was realized in the mnes home plants while the remaining fifth benefitted the foreign plants r d in foreign affiliates does not appear to be used as an input in home plants

economic determinants of the timing of preferential trade agreement formations and enlargements preferential trade agreements ptas have proliferated over the past 60 years while a small number of recent studies have examined empirically the economic determinants of the likelihood of a pair of countries having a pta this study explains empirically the timing of all pta formations and enlargements from 1950 through 2006 using duration analysis our main and novel goal is to predict in and out of sample a substantive share of these 1 560 pta events using a parsimonious model with mainly economic variables taking selection dynamics into account our analysis reveals that we can predict correctly in sample the actual year of entry into force for 26 of the 1 560 bilateral pta formations enlargements in the period 1950 2006 among 10 518 pairings of 146 countries using only a few economic and political variables moreover we can predict correctly in sample 57 of these pta events within a 10 year window leading up to the event using this model the model also performs well out of sample for the near term 82 but not if the out of sample period is very long we conclude with an evaluation of the model s ability to predict the timing of the north american free trade agreement the european union s formation and enlargements and the model s ten most likely post 2006 pta events jel f14 f15

bridging the gender gap identifying what is holding self employed women back in ghana rwanda tanzania and the republic of congo quantile decomposition methods are used to study the determinants of the gender gap in self employment earnings across the earnings distribution of four sub saharan countries the republic of congo

multilateral determinants of regionalism the effects of gatt wto on the formation of preferential trading arrangements preferential trading arrangements ptas have spread widely over the past fifty years during the same era multilateral openness has grown to unprecedented heights spurred by the general agreement on tariffs and trade gatt and its successor the world trade organization wto if the cornerstone of the manifestly successful multilateral regime is nondiscrimination why have its members increasingly resorted to preferential liberalization we argue that developments at the heart of gatt wto encourage its members to form ptas as devices to obtain bargaining leverage within the multilateral regime specifically the growth in gatt wto membership the periodic multilateral trade negotiation rounds as well as participation and especially losses in formal gatt wto disputes have led its members to seek entrance into ptas conducting the first statistical tests on the subject we find strong evidence in support of this argument

performance pay and the white black wage gap we show that the reported tendency for performance pay to be associated with greater wage inequality at the top of the earnings distribution applies only to white workers this results in the white black wage differential among those in performance pay jobs growing over the earnings distribution even as the same differential shrinks over the distribution for those not in performance pay jobs we show that this remains true even when examining suitable counterfactuals that hold observables constant between whites and blacks we explore reasons behind our finding focusing on the interactions between discrimination unmeasured ability and selection

multinational firms technology and location this thesis consists of four essays its main theme is the location of production in multinational firms subsidizing away exports a note on strategic trade policy investigates how strategic

multinationals multi plant economies and the gains from trade a general equilibrium model of a multinational enterprise based on economies of multi plant operation is developed these economies are modelled as arising from the existence of a joint input whose productivity in each production facility is independent of the number of facilities maintained by a firm the multinational thus offers the world increased technical efficiency by eliminating the duplication of the joint input that would occur with independent national firms since this technical efficiency may come at the expense of increased market power the full determinants of home country host country and world welfare are considered

buyers strategies entry barriers and competition in markets where sellers have customer specific investments and buyers can make credible but costly commitments to switch suppliers buyers strategies attenuate the market power of sellers furthermore since current prices and a buyer s decision to switch suppliers are related limit pricing becomes an equilibrium limit prices increase with the time it takes a buyer to switch suppliers and with buyers switching costs but fall with the level of sunk investments thus sunk investments may restrain the sellers ability to exert market power the paper questions then the standard inverse relationship between market performance and sunk investments

bilateral monopolies and incentives for merger the paper presents a model of duopoly in which firms acquire inputs through bilateral monopoly relations with suppliers it combines a bargaining model with a duopoly model to examine how input pri

the loss leader is a turkey targeted discounts from multi product competitors abstract i show that multi product firms can compete for their more profitable customers by setting lower margins on goods that are purchased primarily by them effectively offering them discounts without offering these discounts to less profitable customers this suggests a theory of multi product pricing in which a good s profit margin is inversely related to the profitability of the customers who purchase it this theory i provides one explanation for firms offering lower prices to larger customers and ii suggests that loss leader pricing may allow firms to compete more vigorously for more profitable customers this can explain why stores sell turkeys as loss leaders at thanksgiving but may not discount flowers on mother s day or candy on valentines day

investment climate and fdi in developing countries firm level evidence this paper uses firm level data across 77 developing countries to show that constraints related to investment climate hamper foreign direct investment fdi the main results show that physical infrastructure problems financing constraints and institutional problems discourage fdi these results are robust to an alternative definition of fdi introduction of additional explanatory variables and some breakdown analyses different sectors of activity and comparison between sub saharan africa and other developing countries the results also highlight that exporter foreign firms are more constrained in their activity by physical infrastructure hurdles and the lack of skilled workers compared to firms supplying the domestic market

non cooperative bargaining and union formation we study a union formation decision problem when workers consist of two groups distinguished by different productivities workers may form either a joint union or two separate unions the whole decision process is modelled as an extensive form bargaining game workers form a joint union when the sizes or productivities of the groups are similar in the first case there is a wage differential which is more less than proportional to the productivity difference if the size of the more productive is smaller larger than that of the less productive in the second case there is no wage differential in this paper we study a union formation decision problem when workers consist of two groups distinguished by different productivities they may form either a joint union or two separate unions depending on the relative size and productivity of the two groups the whole decision process is modelled as an extensive form bargaining game in which the two groups of workers bargain with each other as well as with a firm the labour market is sharply distinguished from the goods market by the widespread practice of collective bargaining usually several groups of workers with different characteristics for example skill level or geographical location are represented as a single unit and or several employers form a single bargaining unit against a giant union this multiplicity of bargaining units creates a complicated bargaining structure and makes the outcome hard to analyse the purpose of this paper is to provide a model which captures this complexity and at the same time clarifies the underlying structure of bargaining power although economists have been aware of the multiplicity problem for a long time it has been received little rigorous theoretical treatment until recently davidson 1985 examined the possible gains that can be obtained by trade unions through joint bargaining in an oligopolistic industry there is a positive externality due to the fact that a higher wage rate in one firm generates a larger demand hence a higher wage in competing firms when a joint union is organized these externalities are internalized to the benefit of workers horn and wolinsky 1985 investigated the equilibrium pattern of unionization in an industry where a firm employs two types of workers they found that workers tend to form a single union when the two types are substitutes in the sense that the incremental contribution of one group to the firm s revenue is decreasing with respect to the size of the other group since workers bargaining power comes from the loss that they can

managing the evolution of multilateralism author s downs george w rocke david barsoom peter n abstract in the past five years a relatively extensive literature has emerged that explores the demand for multilateral cooperation that is those factors that motivate states to develop or resist developing formal institutions that operate to increase interstate economic military or environmental cooperation 1 these factors include the transaction costs associated with ad hoc and multiple bilateral arrangements increased interstate trade the diffusion of liberal trade theory information about the costs of environmental degradation and trends in elite ideology to date however our understanding of the supply side of multilateralism the standards that are set for admission the order and speed with which candidate states are admitted and the impact of expansion on cooperation and future evolution has been relatively undeveloped 2 partly as a result theorists have had little to say about how multilateral institutions are likely to evolve or what the policy consequences of their expansion will be 3 supply side issues are important because multilateral organizations usually do not spring forth full blown they grow instead of forming an inclusive agreement that is one that covers nearly all of the states that its designers eventually hope to include many multilateral organizations start out with substantially smaller memberships and generally expand over time we argue that among the many possible explanations for the choice of this design strategy there is a rational choice argument

vertical trade specialization and the formation of north south ptas during the last two decades the number of preferential trade agreements pta s grew almost exponentially to over 270 by 2010 a majority of these are agreements between developed and developing countries existing models provide little economic rationale for these agreements but the existing literature lumps north south pta s together with other types of trade pacts this article offers an explanation focused on the movement of less capital intensive manufacturing from north to south which in turn stimulates the exchange of similar goods differentiated by unit value also referred to as vertical intra industry trade the north exports more capital intensive goods while more labor intensive goods are produced and traded by the south this kind of specialization creates incentives for governments to support pta s the author tests this model using a new measure of vertical trade specialization and finds strong evidence that such specialization promotes pta formation north south pta s should therefore be seen as part of a broader shift of manufacturing from high to middle income countries

explaining institutional change policy areas outside options and the bretton woods institutions i propose and test a theoretical framework that explains institutional change in international relations like firms in markets international institutions are affected by the underlying characteristics of their policy areas some policy areas are prone to produce institutions facing relatively little competition limiting the outside options of member states and impeding redistributive change in comparison institutions facing severe competition will quickly reflect changes in underlying state interests and power to test the theory empirically i exploit common features of the bretton woods institutions the international monetary fund and world bank to isolate the effect of variation in policy area characteristics the empirical tests show that despite having identical membership and internal rules bargaining outcomes in the bretton woods institutions have diverged sharply and in accordance with the theory

multilateralism and the endogenous formation of preferential trade agreements abstract this paper examines the interaction between preferential trade agreements ptas and multilateral tariff reduction in a model of imperfect competition a growing literature finds that the formation of ptas alters the incentives for and the sustainability of multilateral tariff reduction we show that the causation is not one sided multilateral tariff reduction also affects the formation of ptas specifically tariff reduction enhances the incentives to form a pta and increases the likelihood that it is self enforcing thus each round of multilateral tariff reduction should lead to a new wave of ptas this may help to explain the current trend towards regionalism

institutions in international relations understanding the effects of the gatt and the wto on world trade the general agreement on tariffs and trade gatt and the world trade organization wto have been touted as premier examples of international institutions but few studies have offered empirical proof this article comprehensively evaluates the effects of the gatt wto and other trade agreements since world war ii our analysis is organized around two factors institutional standing and institutional embeddedness we show that many countries had rights and obligations or institutional standing in the gatt wto even though they were not formal members of the agreement we also expand the analysis to include a range of other commercial agreements that were embedded with the gatt wto using data on dyadic trade since 1946 we demonstrate that the gatt wto substantially increased trade for countries with institutional standing and that other embedded agreements had similarly positive effects moreover our evidence suggests that international trade agreements have complemented rather than undercut each other an earlier version of this article was presented at the 99th annual meeting of the american political science association philadelphia august 28 31 2003 we thank tim buthe joanne gowa miles kahler andrew rose arthur stein richard steinberg and seminar participants at stanford university the university of chicago pipes the university of california los angeles the university of california san diego and the university of virginia for many helpful comments we especially thank claire adida ashley conner moonhawk kim erin krampetz james morrison mike nardis natan sachs rachel rubinfeld and jessica weeks for excellent research assistance we are grateful for financial support from the national science foundation career grant ses 0548285 to tomz the stanford center for international development and the vice provost for undergraduate education at stanford

welfare effects of entry into markets with switching costs in many markets consumers have costs of switching between products that are functionally identical this note shows that entry of efficient low cost competitors into these markets may be socially detrimental in a linear model entry reduces social welfare as conventionally defined in more than half of the relevant parameter space in a more general model there is always a range of values of switching costs for which entry reduces welfare even if the entrant s production costs are lower than the incumbent s copyright 1988 by blackwell publishing ltd

introducing the all seeing eye of business a model for understanding the nature impact and potential uses of waste abstract at current rates of disposal there are nearly 8 years of remaining landfill capacity at permitted sites in england and wales industry encouraged by financial penalties from the government faces the challenges of cleaner and more sustainable production whilst trying to remain competitive in the market place this paper proposes fit thinking as a means by which waste can be reduced from the early design stages alongside the all seeing eye of business a model to illustrate potential sources of profit and loss in a manufacturing firm s output a literature review on waste and profitability reveals the basis for the model concepts from material flow cost accounting the kanthal effect and the kano model are combined together with industry case studies to develop the model the model is explained in detail demonstrating twelve types of relationships between a company s product outputs and the profitability of each output the model and the relationships it proposes are then tested against examples from literature ultimately fit thinking is shown to help companies prevent waste where waste is unavoidable the all seeing eye of business model can be used by companies in the understanding of their non product output waste providing insights into the nature of their waste and the impact on profitability it is hoped that this understanding will encourage them to see waste as a potential profit making co product rather than as a necessary evil

multiproduct pricing in oligopoly abstract this paper proposes a two good model of price competition where some consumers visit all shops and others visit only one we find that information frictions lead to price dispersion when the two goods are complements their prices will tend to be negatively correlated so if one is priced high the other will be discounted this finding is supported by some empirical evidence which suggests that simultaneous price discounts of complements are infrequent if the goods are substitutes their prices will be uncorrelated potentially rationalizing the lack of evidence on their co pricing when selling complements retailers earn higher profits than in the one good model through taxing captive consumers with a high overall price tag and attracting shoppers by pricing one of the goods aggressively bundling practices are thus shown to be detrimental to retailers profits

the politics of dispute settlement design explaining legalism in regional trade pacts dispute settlement mechanisms in international trade vary dramatically from one agreement to another some mechanisms are highly legalistic with standing tribunals that resemble national courts in their powers and procedures others are diplomatic requiring only that the disputing countries make a good faith effort to resolve their differences through consultations in this article i seek to account for the tremendous variation in institutional design across a set of more than sixty post 1957 regional trade pacts in contrast to accounts that emphasize the transaction costs of collective action or the functional requirements of deep integration i find that the level of legalism in each agreement is strongly related to the level of economic asymmetry in interaction with the proposed depth of liberalization among member countries

the impact of rules of origin on trade flows a great deal of post war trade liberalization resulted from regional preferential trade agreements preferential trade agreements cut tariffs on goods originating only in those nations that have signed the agreement therefore they need rules of origin to determine which goods benefit from the tariff cut rules of origin have long been ignored for two good reasons they are dauntingly complex and at first sight appear mind numbingly dull the third standard reason for ignoring them the assertion that they do not matter much turns out to be wrong we show that rules of origin are important barriers to trade moreover such rules are emerging as an important trade issue for three additional reasons first preferential trade deals are proliferating worldwide second the global fragmentation of production implies complex international supply chains which are particularly constrained and distorted by rules of origin third the extent to which regionalism challenges the wto based trading system depends in part on incompatibilities and rigidities built into rules of origin our empirical results exploit a natural experiment that was created by technical changes to europe s lattice of rules of origin roos in 1997 this change known as diagonal cumulation relaxed the restrictiveness of rules of origin on trade among the eu s free trade agreement fta partners without changing the degree of tariff preference our analysis allows us to establish a lower bound and upper bound estimate of trade impact of roos reduced trade among the eu s trade partners the lower bound we find is something like 10 while the upper bound is around 70 the second part of the paper draws the policy lessons that arise from considering the implications of our empirical findings the most direct lessons are for fta writers we argue that europe s implementation of cumulation is a good way of reducing the welfare reducing impact of overlapping rules of origin without gutting their fraud fighting ability we also suggest a three part procedure for establishing a more multilateral framework for rules of origin which would be more transparent flexible administratively feasible and negotiable patricia augier michael gasiorek and charles lai tong

the role of buying consortia among smes in the electricity market in italy we model the electricity market in italy focusing on the impact of buying consortia among smes on the behaviour of the large electricity producers and sellers we show that consortia may in certain circumstances produce a pro competitive result i e they may induce a reduction of prices not only for consortia members but also for firms not in the consortia

can more consumers lead to lower profits a model of multi product competition abstract the article analyzes the optimal pricing strategy of duopoly retailers who sell two goods to three consumer segments two segments that are interested in one good and one that wants to buy both goods the analysis suggests that the markup on one of the goods might be negative and that the existence of consumers who buy both goods can either increase or decrease markups surprisingly the addition of the consumers who buy both goods unchanging the number of the other consumers might decrease profits and increasing the number of consumers who buy one good might also reduce profits this suggests that firms should consider carefully how additional customers might affect the competitive environment and the equilibrium before attempting to attract them to the market

multi lateral trade negotiations and the most favored nation clause abstract this paper considers the interaction between private information and the most favored nation clause in trade negotiations it demonstrates that by aggregating uncertainty over a number of trading partners the most favored nation clause may offer a welfare improvement over a set of bilateral trade negotiations this improvement is shown to be most pronounced when a large number of countries are involved in negotiations

loss leader pricing and rain check policy loss leader pricing and rain check policies are common in retail markets yet research on these topics is surprisingly scarce in this paper we study the effects of leader pricing and rain check policy on stores profits and market outcomes suppose stores can accurately predict demand might they still run out of stock we investigate whether such a result is plausible when stores can offer rain checks the paper also helps resolve an issue that has recently attracted much attention should the ftc repeal its rule prohibiting stock outs of advertised sale items

the economics of immigration this literature review concerns the impact of immigration on the economy of the host country focusing on the experience of the united states the emphasis is on the period from the 1970s to the 1990s the author shows that research earlier in this period generally concluded that the economic effects of immigration were positive but that more recent research on later migrations have generally concluded that immigration may be having an adverse effect on the earnings of native unskilled workers and be placing an increased burden on welfare programs the importance of such economic analysis for the formulation of appropriate migration policies is stressed

consumer discrimination and self employment self employment rates and incomes differ significantly by race we show that these differentials arise in markets with consumer discrimination and incomplete information about the price of the good and the race of the seller equilibrium income distributions have two properties mean black incomes are lower than mean white incomes and the returns to ability are lower for black than for white sellers able blacks therefore are less likely to self select into the self employment sector than able whites using the 1980 census data we find that observed racial differences in the self employment income distributions are consistent with the theoretical predictions

intellectual property rights multinational firms and economic growth abstract this paper develops a model of north south trade with multinational firms and economic growth in order to analyze formally the effects of stronger intellectual property rights ipr protection in developing countries in the model northern firms invent new higher quality products multinational firms transfer manufacturing operations to the south and the southern firms imitate products produced by multinational firms it is shown that stronger ipr protection in the south i e the adoption and implementation of the trips agreement leads to a permanent increase in the rate of technology transfer to the south within multinational firms a permanent increase in r d employment by southern affiliates of northern multinationals a permanent decrease in the north south wage gap and a temporary increase in the northern innovation rate

multilateralism with small and large numbers multilateralism international governance of the many was defined by the united states after 1945 in terms of certain principles particularly opposition to bilateral and discriminatory arrangements that were believed to enhance the leverage of the powerful over the weak and to increase international conflict postwar multilateralism also expressed an impulse to universality john ruggie s generalized organizing principles that implied relatively low barriers to participation in these arrangements a ticket of admission was always required whether acceding to the general agreement on tariffs and trade gatt or joining the international monetary fund imf and the world bank nevertheless the price of that ticket was not set so high that less powerful or less wealthy states could not hope to participate

regionalism in a multilateral world recent regional initiatives have been addressed from a vinerian perspective of trade creation and trade diversion this is true of both policy oriented economists who tend to be critical of the initiatives and theorists who have added dynamic and gametheoretic elements to the vinerian structure this paper describes the stylized facts of much recent regional integration and develops an alternative model the analysis suggests that regional integration far from threatening multilateral liberalism may in fact be a direct consequence of the success of past multilateralism and an added guarantee for its survival

the intergovernmental network of world trade igo connectedness governance and embeddedness membership in certain intergovernmental organizations igos such as the world trade organization has long been argued to stimulate trade yet evidence linking igos to trade is mixed the authors argue that identifying the influence of igos requires attention not only to the institutions igos enact but also to the network through which they enact them this approach allows them to demonstrate that trade between two countries increases by an average of 58 with every doubling of the strength of igo connection between the countries they also contribute to debates regarding the mechanisms through which structural relationships influence economic behavior by showing that substantial trade benefits occur not only through economic igos but also through igos that were formed for social and cultural purposes and that connections through igos that are organizationally strong have more impact than those through minimalist igos

existing self employment an analysis of asian immigrant owned small businesses part of the uniqueness of the immigrant asian business community in the u s lies in the fact that many among the highly educated pursue self employment in small scale low yielding retail and personal service fields this study analyzes owner departure for a nationwide sample of small businesses owned by asian indian and filipino immigrants and a comparison group of asian nonimmigrant firm owners controlling for firm and owner traits highly educated asian immigrant owners are more likely than others to exit self employment over the 1987 1991 period exit from traditional fields retail and personal services is pronounced these exit patterns do not typify the comparison group findings are consistent with the hypothesis that self employment is often a form of underemployment among asian immigrants

strategic investments and the development of multinationals a model of multinational behavior is presented in which either the existence or absence of multinationals can be a nash equilibrium outcome the key determinant is the relationship between plant scale economies a force for geographic centralization and multiplant economies plus transport costs leading to multinationality the model predicts that multinational enterprise production arises when firm specific and transportation costs are large relative to plant scale economies the latter are both a technological and a strategic variable in the entry decision copyright 1987 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

why do larger buyers pay lower prices intense supplier competition abstract the paper provides a theoretical explanation of the common claim that larger buyers pay lower prices in the model suppliers compete more aggressively for the business of larger buyers much as they do in boom periods of rotemberg and saloner

the pure effects of european integration on intra eu core and periphery trade this paper analyses the effects of eu integration on intra eu trade volumes with a special focus on the evolution of trade within and between the core and the periphery countries in the early phases of eu integration there have been sizable trade creation and diversion effects with respect to efta countries both the creation and the diversion effects of eu membership have declined as the eu and efta have integrated in all phases of eu integration both core periphery and intraperiphery growth of trade have experienced stronger positive effects than intracore trade hence the eu enlargements did not cause any kind of intra eu peripherality

international investment location decisions abstract in international location tournaments governments compete for foreign investment with tax and other short run incentives such tournaments can be won if agglomeration economies are sufficiently powerful to overcome investors desire to spread investments as a hedge against risk we focus on manufacturing investments by u s multinationals in the 1980s our econometric results suggest that agglomeration economies are indeed the dominant influence on investor calculations paradoxically short run incentives have limited apparent impact on location choice we conclude that high cost tournament play is unnecessary for countries with good infrastructure development specialized input suppliers and an expanding domestic market

network competition i overview and nondiscriminatory pricing we develop a model of unregulated competition between interconnected networks and analyze the mature and transition phases of the industry in this deregulated environ ment networks pay negotiated or regulated access charges to each other and com pete in prices for customers we show that a competitive equilibrium may fail to exist for large access charges or for large network substitutability and that freely negotiated access charges may prevent effective competition in the mature phase of the industry and erect barriers to entry in the transition toward competition last we examine the meaning and impact of policies such as the efficient component pricing rule

measuring the return on household enterprise what matters most for whom return on assets roa from household enterprise is crucial for understanding the well being and productivity of households in developing economies yet the definition and measurement of household enterprise roa remain inconsistent or unclear we illustrate potential measurement problems with examples from various actual surveys we then take advantage of a detailed integrated household survey to perform a robustness analysis acting as if we had gathered less data than was actually the case to see what matters and for whom the three issues that matter most for accurate measurement of household enterprise roa are the choice of accrual versus cash basis of income the treatment of household s own labor in enterprise income and the treatment of non factor income also this sensitivity matters most for a relatively poor region dominated by crop cultivation relative to a richer region with non farm enterprises though the choice between accrued income and cash income matters less when the frequency of the data declines there remains high sensitivity in longer term and annualized data we conclude the paper by providing recommendations on how to improve the survey questionnaires for more accurate measurement in field research

the changing distribution of male wages in the uk this paper uses microeconomic data from the u k family expenditure surveys fes and the general household surveys ghs to describe and explain changes in the distribution of male wages since the late 1970s wage inequality has risen very fast in the u k and this rise is characterized both by increasing education and age differentials we show that a large part of the changes in the u k can be summarized quite simply as increases in eduction differentials and a decline of growth of entry level wages which persist subsequently this fact we interpret as cohort effects we also show that like in the u s an important aspect of rising wage inequality is increased within group wage dispersion finally we use the ghs to evaluate the role of alternative education measures

self employment in the developing world summary this paper analyzes heterogeneity among the self employed in 74 developing countries representing two thirds of the population of the developing world after profiling how worker characteristics vary by employment status it classifies self employed workers outside agriculture as successful or unsuccessful entrepreneurs based on two measures of success whether the worker is an employer and whether the worker resides in a non poor household four main findings emerge first jobs exhibit a clear pecking order with household income and worker education highest for employers followed by wage and salaried employees non agricultural own account workers non agricultural unpaid family workers and finally agricultural workers second a substantial minority of own account workers reside in non poor households suggesting that their profits are often a secondary source of household income third as per capita income increases across countries the structure of employment shifts rapidly first out of agriculture into unsuccessful non agricultural self employment and then mainly into non agricultural wage employment finally roughly one third of the unsuccessful entrepreneurs share similar characteristics with their successful counterparts suggesting they have the potential to be successful but face constraints to growth the authors conclude that although interventions such as access to credit can benefit a substantial portion of the self employed effectively targeting the minority of self employed with higher growth potential is important particularly in low income contexts the results also highlight the potential benefits of policies that facilitate shifts in the nature of work first from agricultural labor into non agricultural self employment and then into wage and salaried jobs

employer discrimination evidence from self employed workers during the last two decades the issue of equality according to sex and race has become one of increasing importance to economists an extant literature on the economics of discrimination began with the pioneering work of becker 1957 this paper is an attempt to shed further light on the extent of employer discrimination by sex and race by comparing the earnings of self employed workers to their wage and salary counterparts in short if employer discrimination is a principal source of discrimination against blacks and women then we would expect the black white and female male earnings ratios to be higher for the self employed compared to their wage and salary counterparts no discrimination of this type is applicable to self employed workers in addition blacks and women should be relatively overrepresented among the self employed compared to wage and salary workers in the economy section ii of this paper further elaborates on this indirect method to estimate the extent of employer discrimination in the labor market for blacks and women in section iii the results of this method are presented using the 1978 current population survey as the data source results indicate the black white and female male earnings ratios are no larger for the self employed compared to their wage and salary counterparts even after making various attempts to adjust for differences in other variables that affect earnings and to limit the influence of consumer discrimination on the results

a structural equations analysis of the impact of price promotions on store performance guided by past research conventional wisdom in the retailing area and microeconomic theory the authors develop a series of hypotheses about the effects of loss leaders in store price specials