the distribution of earnings in an equilibrium search model with state dependent offers and counteroffers we construct an equilibrium job search model with on the job search in which firms implement optimal wage strategies under full information in the sense that they leave no rent to their employees and counter the offers received by their employees from competing firms productivity dispersion across firms results in wage mobility both within and across firms workers may accept wage cuts to move to firms offering higher future wage prospects equilibrium productivity dispersion across ex ante homogeneous firms can be endogenously generated productivity dispersion then generates a nontrivial wage distribution which is generically thin tailed as typically observed in the data

self enforcing wage contracts we examine long term wage contracts between a risk neutral firm and a risk averse worker when both can costlessly renege and buy or sell labour at a random spot market wage a self enforcing contract is one in which neither party ever has an incentive to renege in the optimum self enforcing contract wages are sticky they are less variable than spot market wages and positively serially correlated they are updated by a simple rule around each spot wage is a time invariant interval and the contract wage changes each period by the smallest amount necessary to bring it into the current interval

posting multiple prices to reduce the effectiveness of consumer price search in a model of competition with imperfect consumer price information and incomplete price search some consumers may end up comparing prices originating from the same supplier either because one firm sets multiple prices or because a group of firms colludes this leads to added monopoly power for these firms and average prices in the mixed strategy equilibrium become higher there is a shift in welfare from consumers to producers both with exogenous and endogenous consumer search behaviour however consumers might search more or less with multiple prices the implications for the price setting equilibrium competition policy and recent judgements are considered

compatibility and bundling of complementary goods in a duopoly this paper presents a simple model of compatibility and bundling in industries where consumers assemble several necessary components into a system that is close to their ideal the authors show that for a wide range of parameters firms will choose to produce compatible components but will offer discounts to consumers who purchase all components from the same firm however firms would be better off if they could commit not to provide such discounts furthermore the equilibrium tends to involve socially excessive bundling finally mixed bundling strategies tend to increase the range of parameters over which socially excessive standardization occurs copyright 1992 by blackwell publishing ltd

investments holdup and the form of market contracts the authors analyze incomplete contracts to induce efficient investment with exogenous switching costs fixed price contracts are efficient generate some rigidity in prices are renegotiated intermittently by possibly small amounts and when inflation is positive generate asymmetric responses to shocks all consistent with evidence on prices and wages with two sided specific investments efficiency requires prices to have sufficient escalator clauses to avoid renegotiation as observed in many long term contracts a third case with one sided specific investments can generate take or pay contracts and explain why firms sometimes pay for specific investments that appear to benefit employees directly

determinants of fdi incentive preferences of mnes in this study managers of u s firms with operations in the caribbean region evaluated the attractiveness of twenty host country incentives multivariate analysis of variance was employed to determine whether incentive preferences were a function of investment characteristics the results indicate that incentive preferences depend on the type of investment market orientation size of investment geographic location year of investment and type of product furthermore exporters considered import duty concessions to be more desirable than did investors oriented toward the local markets these results indicate that government programs waiving import duties such as the free trade zones of the dominican republic and the maquiladora program of northern mexico are providing the incentive deemed most important by their targeted investors

credible threats in a wage bargaining model with on the job search abstract this note shows that in standard equilibrium search models with strategic wage bargaining and on the job search renegotiation does not require mutual consent if the worker needs a credible threat to trigger renegotiation wages are renegotiated less frequently than in the original model

patterns of retail price variation we examine retail price variation across a range of goods and regions of the united states we find that the typical grocery product has a regular price and stays at that price at least 50 of the time and that most deviations from that regular price are downward temporary discounts or sales while infrequent account for 20 to 50 of the annual variation in retail prices for most product categories although existing models of retail sales yield predictions consistent with some aspects of the retail pricing distributions all of these models fail to explain other important aspects of retail pricing identified here

growth rate heterogeneity and the covariance structure of life cycle earnings using u s panel data on adult males i compare the profile heterogeneity model of earnings dynamics in which the earnings experience profile varies across individuals to a competing model in which earnings has a unit root the latter specification enjoys increasing popularity among researchers my analysis questions this favor suggesting the profile heterogeneity model provides a more consistent representation of the data i also provide new estimates of the variation in earnings growth rates previous evidence is from relatively unrepresentative samples individuals one standard deviation above the mean enjoy a 20 30 earnings advantage in just 10 years

the effects of interbank networks on efficiency and stability in a macroeconomic agent based model we develop a macroeconomic agent based model that consists of firms banks unions and households who interact on labour goods credit and interbank markets the model endogenises pricing decisions by firms wage setting by unions and interest rate setting by banks on both firm and interbank lending banks also set leverage targets and precautionary liquidity buffers on the basis of internal risk models our model produces endogenous fluctuations driven by the pricing behaviour of firms and the wage setting behaviour of unions fluctuations lead to loan defaults which are exacerbated as lenders reduce lending and charge higher interest rates inducing a credit crunch we also study how making the inter banking network more connected affects the key outcomes of the economy and find that while the flow of funds from surplus banks to firms can be increased the latter effect is soon dominated by increasing instability in the real sector as firms default at higher rates while the banking sector experiences fewer defaults as a whole losses on the interbank market increase as a source of bank defaults

the macrodynamics of sorting between workers and firms we develop an equilibrium model of on the job search with ex ante heterogeneous workers and firms aggregate uncertainty and vacancy creation the model produces rich dynamics in which the distributions of unemployed workers vacancies and worker firm matches evolve stochastically over time we prove that the surplus function which fully characterises the match value and the mobility decision of workers does not depend on these distributions we estimate the model on us labour market data from 1951 2007 and predict the fit for 2008 12 we use the model to measure the cyclicality of mismatch between workers and jobs

determinants of international activity evidence from the chemical processing industry abstract this paper empirically investigates two important determinants of international activity through wholly owned operations joint ventures and technology licensing namely country risk and intellectual property rights iprs protection using a comprehensive database on investments in chemical plants during the period 1981 1996 we show that higher levels of country risk are associated with less activity into recipient economies the analysis also suggests that international activity with smaller resource commitment tends to be preferred in countries with higher levels of risk and that multinational investment is more responsive to changes in risk conditions than indigenous investment after controlling for several country characteristics we do not find iprs protection playing a significant role in fostering international activity or conditioning its mode

multiproduct equilibrium price dispersion abstract the model of burdett and judd econometrica51 1993 955 969 is generalized to the case of may goods consumers choose the best price observed for each good there are two classes of equilibria those that involve constant expected profits for each good independently of price and those with increasing profits for each good in price a continuum of the latter type always exists these equilibria are qualitatively different than the unique equilibrium of the single good case journal of economic literature classification numbers d83 d43 l13

bundling of substitutes or complements abstract the adams yellen two good bundling framework is generalized to allow the goods to be substitutes or complements general theorems on price change effects are given a monopolist may find it most profitable to offer the goods only as a bundle even if they are imperfect substitutes or to not bundle the goods even if they are complements if one good is competitively sold a monopoly producer of the other good can never increase profits by offering his good only as part of a bundle however such a monopolist might profitably offer his good in both bundled and unbundled form to price discriminate even if the two goods are substitutes

a tax savings model for the emerging global manufacturing network the emerging global manufacturing network involves nodal location features of tax areas and international logistics zones manufacturing procedures of simple process and deep process as well as transportation arcs since choosing tax savings locations and manufacturing procedures that increase after tax profit is important to global manufacturers this study aims to present several tax savings approaches and to develop a tax savings model for maximizing after tax profit in the emerging network numerical illustration demonstrates that the proposed model is an effective approach for global manufacturers to achieve tax savings the proposed model elucidates the crucial logistics behavior associated with tax savings

multiproduct search and the joint search effect abstract this paper presents a sequential search model where consumers look for several products from multiproduct firms multiproduct search can significantly influence firms pricing decisions for example it can make market prices decrease with search costs possible applications of the model are also discussed jel d11 d43 d83

multi commodity consumer search abstract this paper analyses the optimal search strategy for consumers who wish to purchase several different commodities possibly from several different firms but are not perfectly informed about the prices charged by each firm for every commodity it is shown that in general the optimal search strategy will not possess the reservation property the multi commodity equivalent of a reservation price necessary and sufficient conditions are identified for the optimal search strategy to possess the reservation property and it is shown that a critical sufficient condition is that the indirect utility function is submodular comparative static results are also presented journal of economic literature classification numbers d11 d81 d83

financial integration and consumption smoothing we test if financial integration improves household consumption smoothing using microeconomic data we find that the process of financial market integration and liberalisation brought about by the introduction of the euro has not affected the sensitivity of consumption with respect to income shocks in italy this article also makes a significant contribution from a methodological point of view because our procedure does not require that consumption and income are available in the same panel data set it can therefore be applied in all countries in which repeated cross sectional consumption data can be combined with panel data on income

how supply competency affects fdi decisions some insights abstract foreign investment decisions by multinational enterprises are usually arrived by considering not just the firm specific factors but location specific factors are also of paramount importance using three supply factors specific to a country supply environment supply infrastructure absorptive capacity we construct a rating system representing the potential of a nation to attract foreign direct investment fdi we use the combinatorics and boolean based logical analysis of data lad method to capture the individual and combined impact of the supply factors on the fdi inflow the lad classification system is shown to be robust cross validating very well thereby allowing its use for prediction purposes and permitting the derivation of a rating system that can have various granularity levels by linking fdi potential with supply capability related factors the findings of this research contribute to future fdi decisions by firms as well as provide assistance and direction to strategic planners of countries that seek to enhance their attractiveness as fdi destinations as technology matures production processes start to lack differentiation and firms look to establish facilities globally to become more competitive this study enhances decision making process pinpointing areas for focused consideration

on the dynamics of unemployment and wage distributions postel vinay and robin s 2002 sequential auction model is extended to allow for aggregate productivity shocks workers exhibit permanent differences in ability while firms are identical negative aggregate productivity shocks induce job destruction by driving the surplus of matches with low ability workers to negative values endogenous job destruction coupled with worker heterogeneity thus provides a mechanism for amplifying productivity shocks that offers an original solution to the unemployment volatility puzzle shimer 2005 moreover positive or negative shocks may lead employers and employees to renegotiate low wages up and high wages down when agents individual surpluses become negative the model delivers rich business cycle dynamics of wage distributions and explains why both low wages and high wages are more procyclical than wages in the middle of the distribution

a theory of wage dynamics a dynamic equilibrium model of long term implicit labour contracts under incomplete but symmetric information is developed workers are assumed to be risk averse and of unknown ability or productivity risk neutral firms learn as do workers about each worker s productivity by observing the worker s output over time it is shown that equilibrium contracts provide for wages which never decline with age and increase only when the worker s market value increases above his current wage in addition to characterizing the equilibrium wage contract we also derive some of its implications for the behaviour of aggregate wages across various groups of workers these implications explain some findings in the recent empirical literature on ageearnings profiles in particular our model can explain why earnings may be positively related to experience even after controlling for productivity as some empirical studies have indicated

competitive search obfuscation abstract obfuscation is a literature term referring to sales practices which increase the costs consumers pay to search how does competition shape it how does it shape competition to address these questions we develop a model where each firm can freely commit to any observable degree of search obfuscation which pins down the time cost of searching its product consumers have limited time for browsing around websites this endogenizes consumer information and competition intensity and gives clear predictions about market welfare and surplus division we find that competition for prominence and the fear of frustrating consumers keeps the negative welfare effects of obfuscation low however because obfuscation reduces price awareness and differentiation relaxes price competition the obfuscation choices in the unique equilibrium are persistently positive and different

labor market reforms an evaluation of the hartz policies in germany abstract how do workers and firms respond to comprehensive labor market reforms we use detailed micro data to analyze the german hartz reforms through the lens of a structural model of the labor market these reforms aimed at reducing unemployment by increasing working hour flexibility job matching and work incentives in our setting reforms directly affect the model parameters which are estimated using matched data on 430 000 workers in 340 000 firms contrary to previous findings our analysis shows that although the reforms shortened the typical duration of unemployment they did not reduce unemployment as a whole and led to a decline in wages low skilled workers suffered the most in terms of employment and wage losses furthermore we decompose the contribution of each reform wave to employment and wage changes finding that the reduction in generosity of unemployment benefits was the principle driver in reducing wages

the employment effect of reforming a public employment agency by how much does an increase in operating effectiveness of a public employment agency pea and a reduction of unemployment benefits reduce unemployment using a recent labour market reform in germany as background we find that an enhanced effectiveness of the pea explains about 20 of the observed post reform unemployment decline the role of unemployment benefit reduction explains just about 5 of the observed decline due to disincentive effects resulting from the reform the reform of the pea could have had an even higher impact on unemployment reduction if there had been less focus on long term unemployed workers

tenure experience human capital and wages a tractable equilibrium search model of wage dynamics we develop and estimate an equilibrium job search model of worker careers allowing for human capital accumulation employer heterogeneity and individual level shocks wage growth is decomposed into contributions of human capital and job search within and between jobs human capital accumulation is largest for highly educated workers the contribution from job search to wage growth both within and between job declines over the fi rst ten years of a career the job shopping phase of a working life after which workers settle into high quality jobs using outside o ffers to generate gradual wage increases thus reaping the bene fits from competition between employers

determinants of foreign investment of u s advertising agencies this paper investigates the impact of several factors on the foreign investment of u s advertising agencies by using the theories on the determinants of foreign direct investment by manufacturing firms for the two years examined the hypotheses about the impact of host country market size host country geographic proximity firm size firm s international operations experience oligopolistic reaction and presence of home country customers abroad are all confirmed this paper also investigates the impact of oligopolistic reaction among the top ten and the second ten largest agencies and finds a stronger impact for the former

oligopolistic pricing with sequential consumer search n identical stores compete by choosing prices for a homogeneous good with constant marginal costs consumers search sequentially with perfect recall for the lowest price one class of consumers called shoppers have zero search costs while all other consumers have a positive search cost c there is a unique symmetric nash equilibrium price distribution with the property that it changes smoothly from marginal cost pricing when all consumers are shoppers and or c 0 and monopoly pricing when no consumers are shoppers remarkably as the number of stores increases the nash equilibrium becomes more monopolistic copyright 1989 by american economic association

the effect of implicit contracts on the movement of wages over the business cycle evidence from micro data in this paper we address the question of whether wages are affected by labor market conditions in a manner more consistent with a contract approach than with a standard spot market model from a simple implicit contract model we derive implications about the links between wages and past labor market conditions using individual data from the current population survey and the panel study of income dynamics we find that an implicit contract model with costless mobility describes these links better than either a simple spot market model or an implicit contract model with costly mobility

pricing of demand related products can ignoring cross category effect be a smart choice abstract this paper studies pricing strategies of competing retailers offering substitutable products in multiple product categories for such retailers in addition to accounting for within category pricing effects cross category effects can also influence consumers purchase decisions and thereby impact the retailers optimal pricing strategies we model consumers utility for purchasing substitutable products from the same category and from other categories as well we then solve a game theoretic model to identify the retailers optimal prices and profits our results show that accounting for cross category effects largely influences the retailers pricing and profitability in particular cross category effects influence the sensitivity of prices to within category substitution levels while cross category effects have an impact on retailers equilibrium strategies this effect is only relevant when within category substitution effects are present we also find that intentionally ignoring cross category effects leads to lower prices for categories that are either substitutable or highly complementary and to higher prices otherwise when not accounting for the fact that the two categories are demand related implies lower prices than when this information is accounted for then at least one retailer chooses to disregard the cross category effect at equilibrium finally we find evidence for prisoner s dilemma situations where both retailers ignore cross category effect at equilibrium while accounting for it would yield them higher profits

optimal bundling and pricing under a monopoly contrasting complements and substitutes from independently valued products we develop an analytical model of contingent valuations and address two questions of import to a monopolist i should a given pair of complements or substitutes be sold separately pure components together pure bundling or both mixed bundling and at what prices ii how do optimal bundling and pricing strategies for complements and substitutes differ from those for independently valued products we find that the combination of marginal cost levels and the degree of complementarity or substitutability determines which of the three bundling strategies is optimal complements and substitutes should typically be priced higher than independently valued products

wages and job mobility of young workers this paper presents a discrete time version of jovanovic s model of worker firm matching descriptive evidence is presented that supports the notion that unobserved worker firm heterogeneity is an important component in the intertemporal structure of wages for young workers a structural econometric model of wage dynamics under worker firm sorting is developed and estimated finally a formal test of the matching model is carried out and the matching structure on intertemporal covariances of wages is not rejected my results indicate the necessity of jointly considering processes of turnover and wage growth when analyzing the labor market experiences of young workers

non cooperative bargaining theory an introduction the paper provides an informal introduction to some of the main themes of the recent literature on non cooperative or sequential bargaining models it focuses in particular on the relationship between the new approach and the traditional axiomatic approach exemplified by nash bargaining theory it illustrates the new insights offered by the non cooperative approach by reference to a detailed analysis of the manner in which the presence of an outside option available to one of the parties will affect the negotiated outcome finally the difficulties which arise in extending this analysis to two person bargaining with incomplete information and to n person bargaining are discussed this is a revised version of the fourth review of economic studies lecture presented in april 1985 at the joint meeting of the association of university teachers of economics and the royal economic society held in oxford the choice of lecturer is made by a panel whose members are currently professors hahn mirrlees and nobay and the paper is refereed in the usual way this paper aims to provide an informal and elementary introduction to an approach to bargaining which has received a great deal of attention over the past few years the approach involves writing down some particular sequence of moves offers and replies to be made over time in the course of negotiations and then looking for a non cooperative equilibrium in the game thus specified in practice a perfect equilibrium or in games of incomplete information a sequential equilibrium while the approach appears at first sight to be very different in spirit from the traditional axiomatic approach in which a bargaining solution is specified by appealing to a number of general requirements which are deemed appropriate on the basis of some a priori considerations the two approaches are in fact complementary while the

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

the globalization of service multinationals in the triad regions japan western europe and north america in this study we empirically investigate the determinants of foreign direct investment of service multinationals based in the triad regions japan western europe and north america foreign investment decisions of 168 of the largest service firms in nine service industries over the period 1976 1986 are analyzed and hypotheses that are developed based on findings of manufacturing fdi and studies of single service industries are tested using a logistic regression model the applicability of the mne fdi theories to service mnes is tested empirically over a broad range of mne home countries and service industries differences in the international behavior of service mnes based in different countries are uncovered and analyzed

tying foreclosure and exclusion in recent years the leverage theory of tied good sales has faced heavy and influential criticism in an important sense though the models used by its critics are actually incapable of addressing the leverage theory s central concerns here the author reconsiders the leverage hypothesis and argues that tying can indeed serve as a mechanism for leveraging market power the mechanism through which this leverage occurs its profitability and its welfare implications are discussed in detail copyright 1990 by american economic association

globalization of production insights from the hard disk drive industry abstract rapid change in the geographical location of production raises important questions regarding the welfare development potential and competitive position of different countries and regions this paper explores in detail the geography of economic activity in a specific industry the hard disk drive hdd component of the computer industry firms in the hdd industry are breaking the production system into ever smaller distinct steps and spreading the physical location of these steps around the world firms from the united states dominate the industry our findings suggest that globalization has enabled us firms to sustain their dominant position in the industry preserve employment in the united states and possibly expand it and increase employment worldwide most notably in southeast asia

insurance within the firm we evaluate the allocation of risk between firms and their workers using matched employer employee panel data unlike previous contributions this paper focuses on idiosyncratic shocks to the firm which are the correct empirical counterpart of the theoretical notion of diversifiable risk we allow for both temporary and permanent shocks to output and find that firms absorb temporary fluctuations fully but insure workers against permanent shocks only partially risk sharing considerations can account for about 15 percent of overall earnings variability the remainder originating from idiosyncratic shocks to individual workers our welfare calculations indicate that firms are an important vehicle of insurance provision

the interrelated dynamics of unemployment and low wage employment this paper examines the extent of state dependence in unemployment and the role played in this by intervening low wage employment a range of dynamic random and fixed effects estimators are compared low wage employment is found to have almost as large an adverse effect as unemployment on future prospects and the difference in their effects is found to be insignificant evidence is presented that low wage jobs act as the main conduit for repeat unemployment and considerably increases its probability obtaining a higher wage job reduces the increased risk of repeat unemployment to insignificance

firm differences in perceptions of the facilitating role of foreign trade zones in global marketing and logistics recent research has investigated the internationalization process of the firm this study provides insight into the role that foreign trade zones play in that process it investigates differences between users and non users of foreign trade zones in terms of 1 firm characteristics 2 the awareness of zone benefits and 3 the importance of the benefits to the firms surveyed zone users were found to import significantly more than non users and exported more as well users tended to be smaller in size sales and number of employees than non users users were more aware of the benefits of foreign trade zones and for the most part rated the benefits as being more important in facilitating their global marketing and logistics functions

host country reforms and fdi inflows how much difference do they make summary this study examines the effects of various policies on foreign direct investment fdi flows from the perspective of the eclectic theory of international investment and hence the advantages of foreign ownership host country location and internationalization host country policies can influence fdi flows primarily through their influence on the advantages of location in the host country pooled cross section and time series data for 49 less developed countries ldcs over 1970 95 are used to examine the effects of several different types of policy institutional variables including corporate tax rates tariff rates the degree of openness to international capital flows exchange rate distortions contract enforcement nationalization risk bureaucratic delay and corruption a multivariate analysis of the effects on fdi flows of each type of policy with and without controls for other relevant determinants is conducted two different sources of fdi data are employed as well as two different measures of capital controls although there are methodological problems in estimation and especially collinearity problems and relatively severe availability constraints for some of the relevant measures the results demonstrate the relevance and importance for fdi flows of many of the policy institutional variables under study they also indicate that the results from panel methods yield results that differ rather significantly from those obtained from pure cross section analysis because of complementarity between the various elements of a healthy investment climate the effects of some policy reforms estimated from models which do not control for changes in other policies may overstate the effectiveness of individual policy reforms

the location of export oriented foreign direct investment in the caribbean basin this paper analyzes the location of export oriented manufacturing investment the analysis focuses on direct investment in the caribbean basin using micro data for all reported manufacturing plant openings from 1984 87 we test a broad range of influences on country selection and compare the results with the existing literature on foreign direct investment in less developed countries the probability of country selection was estimated with a conditional logit model the estimates were then used to predict the location of caribbean basin investments made in 1988 and 1989 twelve independent variables were tested six variables had a statistically significant positive relationship with plant location per capita gnp exchange rate devaluation the length of income tax holidays the size of free trade zones political stability and manufacturing concentration negative relationships were found for the wage rate inflation rate transportation cost and profit repatriation restrictions

the importance of assumptions in investment evaluation abstract this work illustrates a new method for estimating the importance of assumptions in investment evaluation the most diffused sensitivity analysis schemes present limitations when used to assess the importance of individual parameters and cannot be employed to estimate the importance of groups of assumptions however such problems can be solved by making use of the differential importance measure dim we set forth the framework for the application of dim at the parameter level of investment valuation models we study the relationship between dim and investment marginal behavior we analyze the link between importance of a parameter and risk associated with it we discuss general results for a sample valuation model the numerical application to the valuation of an energy sector investment project follows we rank the factors based on their importance and determine the project risk profile we discuss the importance of groups of assumptions results will show that assumptions relating to revenues are the most influential ones followed by discounting and operating cost assumptions we discuss numerically the relationship between importance and risk analyzing the effect of variable costs hedging through the comparison of the project risk profile in the presence and in the absence of such a hedging

consumption inequality and income uncertainty this paper places the debate over using consumption or income in studies of inequality growth in a formal intertemporal setting it highlights the importance of permanent and transitory income uncertainty in the evaluation of growth in consumption inequality we derive conditions under which the growth of variances and covariances of income and consumption can be used to separately identify the growth in the variance of permanent and transitory income shocks household data from britain for the period 1968 1992 are used to show a strong growth in transitory inequality toward the end of this period while younger cohorts are shown to face significantly higher levels of permanent inequality

price competition in multimarket duopolies in this article we analyze the pricing strategies offirms that compete for the demand of an assortment of goods in a complete information static framework in particular we model the competition between two symmetric firms in a market that consists of two types of consumers each of which may buy one unit of both goods sold by the two firms we show that all nash equilibria are such that neither firm charges the same price for both goods interestingly under certain conditions thefirms jointly price discriminate between the two types of consumers and may even achieve the same level of profits as if they maximized joint profits for another set of conditions the unique equilibrium is such that the price for one of the goods and the price for the bundle are the same as the price of the good in a standard hotelling model with one good finally we show that if these equilibria exist both firms prefer to sell both goods rather than specialize in either one of them these results are a direct consequence of the interplay between the multimarket rivalry and the existence of more than one market segment as modelled in this article

bundling and international market segmentation the paper shows how firms by bundling their products with nontradables may contribute to the segmentation of international oligopoly markets we develop a simple example with two products one that is homogeneous across markets and one that is bundled with a nontradable e g local services integration of the markets for the homogeneous product yields the expected price equalization across markets however integration of the markets for bundled products leaves the economy entirely unaffected hence the standard methodology of comparing a segmented and an integrated equilibrium would exaggerate the effects of integration in this economy

a strategic motivation for commodity bundling the analytical literature on commodity bundling explains the practice of selling two or more differentiated products in a single package as a surrogate for direct price discrimination in contrast this paper shows that imperfect competition creates a strategic incentive to bundle the profitability of bundling whether it adversely affects rival producers and whether it yields an overall efficiency gain depends inter alia on the nature of product market competition the role of complementarity in explaining why firms bundle is also explored copyright 1990 by blackwell publishing ltd

an evaluation of the investment environment in international logistics zones a taiwanese manufacturer s perspective abstract with the rapid development of international logistics the role of international logistics zones has become increasingly important this study evaluated the importance of investment environment factors namely political infrastructure cost and market factors for firms intention to invest in international logistics zones a structural equation modeling sem approach was employed to analyze respondents foreign direct investment fdi intention results indicated that market cost and infrastructure factors have a positive effect on firms intention to invest in international logistics zones the influence of political factor on firms investment intention was not supported in this study theoretical and practical implications of the findings for firms foreign direct investment in international logistics zones are discussed

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

competitive pricing and efficiency in search equilibrium we consolidate and generalize some results on price determination and efficiency in search equilibrium extending models by rubinstein and wolinsky and by gale heterogeneous buyers and sellers meet according to a general matching technology and prices are determined by a general bargaining condition when the discount rate r and search costs converge to 0 we show that prices in all exchanges are the same and equal the competitive market clearing price given positive search costs efficiency obtains iff bargaining satisfies hosios condition and r 0 when prices are set by third party market makers however we show that search equilibrium is necessarily efficient

sustainable infrastructure investment with labor only production abstract the purpose of this paper is to consider a partial equilibrium model for a sustainable infrastructure investment in a labor production economy we consider an inter temporal stackelberg game in a capital primitive economy where all capital investments are made by a central agency a government the government is assumed to have a number of objectives including sustainability of the infrastructure investments while firms are assumed to be myopic maximizing only current profits and paying taxes as a function of their returns both open loop and closed loop feedback stackelberg strategies are considered based on the analysis of the investment game some conclusions are drawn regarding the propensity to invest as a function of sustainability constraints the taxation rates and employment levels we then show that investments can tend to a constant level and thus strategic government goals of sustainability and employment growth can be planned only if labor costs and the general price index are steady or characterized by a set of conditions ensuring the attainability of the steady state investment

modeling earnings dynamics in this paper we use indirect inference to estimate a joint model of earnings employment job changes wage rates and work hours over a career we use the model to address a number of important questions in labor economics including the source of the experience profile of wages the response of job changes to outside wage offers and the effects of seniority on job changes we also study the dynamic response of wage rates hours and earnings to various shocks and measure the relative contributions of the shocks to the variance of earnings in a given year and over a lifetime we find that human capital accounts for most of the growth of earnings over a career although job seniority and job mobility also play significant roles unemployment shocks have a large impact on earnings in the short run as well as a substantial long term effect that operates through the wage rate shocks associated with job changes and unemployment make a large contribution to the variance of career earnings and operate mostly through the job specific error components of wages and hours

on the strategic choice of spatial price policy the strategic incentives with respect to the choice of price policy in spatial competition are analyzed in a duopoly model price discrimination emerges as the unique equilibriu m outcome in games with either simultaneous choice of policy and pric e or sequential choice where firms may commit first to uniform mill p ricing before the actual market stage nevertheless profits may be h igher with uniform pricing the authors models are applied to analyz e some common business practices that arise in geographical pricing like the basing point system and in the pricing of varieties or opti ons from a base product in a product differentiation context copyright 1988 by american economic association

on the job search productivity shocks and the individual earnings process individual labor earnings observed in worker panel data have complex highly persistent dynamics we investigate the capacity of a structural job search model with i i d productivity shocks to replicate salient properties of these dynamics such as the covariance structure of earnings the evolution of individual earnings mean and variance with the duration of uninterrupted employment or the distribution of year to year earnings changes specifically we show within an otherwise standard job search model how the combined assumptions of on the job search and wage renegotiation by mutual consent act as a quantitatively plausible internal propagation mechanism of i i d productivity shocks into persistent wage shocks the model suggests that wage dynamics should be thought of as the outcome of a specific acceptance rejection scheme of i i d productivity shocks this offers an alternative to the conventional linear arma type approach to modelling earnings dynamics structural estimation of our model on a 12 year panel of highly educated british workers shows that our simple framework produces a dynamic earnings structure which is remarkably consistent with the data

estimating incentive and welfare effects of nonstationary unemployment benefits the distribution of unemployment duration in our equilibrium matching model with spell dependent unemployment benefits displays time varying exit rates building on semi markov processes we translate these rates into an expression for the aggregate unemployment rate structural estimation using german microdata allows us to discuss the effects of an unemployment benefit reform hartz iv the reform reduced unemployment by less than 0 1 percentage points contrary to general beliefs the net wage for most skill and regional groups increased taking the insurance effect of unemployment benefits into account however the reform is welfare reducing for 76 of workers

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

a test of the household income process using consumption and wealth data the evolution of household income can be explained almost equally well by rival models however rival models have very different implications for other household behaviours such as consumption i therefore test between two prominent models in the uk using panel data on consumption and wealth as well as income over 1991 2006 to operate the test i show that long lived income shocks transmit far less than one for one through to consumption and particularly so for younger households i then compare these estimates of transmission with estimates of households ability to smooth shocks captured by the data on wealth conditional on the suitability of the consumption model my estimates provide evidence against the restricted income process rip and in favour of an alternative heterogeneous income process hip this finding also explains why cross sectional consumption inequality grew slowly over the period even though the variance of long lived shocks was high finally i conclude that it is important to consider mean reversion of shocks when constructing life cycle consumption models

worker flows job flows and unemployment in a matching model abstract standard matching models of unemployment generate far too little volatility in unemployment and vacancies relative to the variation in the shock variables shimer 2005 showed that in us data the vacancy to unemployment ratio is about 26 times more volatile than the standard model predicts he identified the flexibility of wages as the key issue and triggered a heated debate on possible improvements of the core model to accommodate these empirical facts in this paper we first document shimer s facts for the uk and find them to be qualitatively similar to us facts we then develop and calibrate a model based on the mortensen and pissarides approach that increases the volatility of the v u ratio 20 fold compared to the standard framework the key features of our model relate to the job creation decision by firms and the search options of workers we allow these to search whilst employed and firms to re advertise jobs that have been quit from this leads us to use a different job creation process whereby potential vacancies or job ideas arise at a finite rate per period over a range of idiosyncratic productivities calibrating the model to uk data we show that it delivers volatility in unemployment and vacancies much closer to though still not as large as that observed for the uk whilst retaining the standard wage determination process

why firms may prefer not to price discriminate via mixed bundling abstract we analyze a simple model of joint purchase discounts using a discrete choice framework to characterize consumer choices the model suggests that mixed bundling is more likely to be associated with monopoly this is due to the benefits reaped via price discrimination in a duopoly environment however only pure components pricing may be offered in equilibrium since firms fear the extra degree of competition inherent in mixed bundling

on the job search and strategic bargaining abstract this paper studies wage bargaining in a simple economy in which both employed and unemployed workers search for better jobs the axiomatic nash bargaining solution and standard strategic bargaining solutions are inapplicable because the set of feasible payoffs is nonconvex i instead develop a strategic model of wage bargaining between a single worker and firm that is applicable to such an environment i show that if workers and firms are homogeneous there are market equilibria with a continuous wage distribution in which identical firms bargain to different wages each of which is a subgame perfect equilibrium of the bargaining game if firms are heterogeneous i characterize market equilibria in which more productive firms pay higher wages i compare the quantitative predictions of this model with burdett and mortensen s 1998 wage differentials employer size and unemployment international economic review 39 257 273 wage posting model and argue that the bargaining model is theoretically more appealing along important dimensions

marriage labor supply and home production we extend the search matching model of the marriage market of shimer and smith 2000 to allow for labor supply home production match specific shocks and endogenous divorce we study nonparametric identification using panel data on marital status education family values wages and market and non market hours and we develop a semiparametric estimator we estimate how much sorting results from time use specialization or homophilic preferences we estimate how equilibrium marriage formation affects the wage elasticities of market and non market hours we estimate individuals willingness to pay for marriage and quantify the redistributive effect of intra household resource sharing

an equilibrium model of health insurance provision and wage determination we investigate the effect of employer provided health insurance on job mobility rates and economic welfare using a search matching and bargaining framework in our model health insurance coverage decisions are made in a cooperative manner that recognizes the productivity effects of health insurance as well as its nonpecuniary value to the employee the resulting equilibrium is one in which not all employment matches are covered by health insurance wages at jobs providing health insurance are larger in a stochastic sense than those at jobs without health insurance and workers at jobs with health insurance are less likely to leave those jobs even after conditioning on the wage rate we estimate the model using the 1996 panel of the survey of income and program participation and find that the employer provided health insurance system does not lead to any serious inefficiencies in mobility decisions

identification of search models using record statistics this paper shows how record value theory a branch of statistics that deals with the timing and magnitude of extreme values in sequences of random variables can be used to recover features of the wage offer distribution in conventional search models using national longitudinal survey of youth nlsy wage data i show that the data are not compatible with specifications for the offer distribution characterized by extreme negative skewness in addition i show that my approach can be used to construct a bound on the returns to job seniority my results suggest that job seniority plays only a minor role in the wage growth of the workers surveyed in the nlsy copyright 2008 wiley blackwell

multiproduct monopoly commodity bundling and correlation of values through what selling strategy can a multiproduct monopolist maximize his profits when his knowledge about individual consumers preferences is limited one possibility extensively studied in the context of a single good monopoly is to use quantity dependent pricing as a means of discriminating among customers with differing tastes see for example oi 1971 and maskin and riley 1984 an alternative technique for price discrimination first suggested by stigler 1968 and analyzed further by adams and yellen 1976 is for the monopolist to package two or more products in bundles rather than selling them separately through a series of examples adams and yellen illustrate that bundling can serve as a useful price discrimination device even when all consumers willingnesses to pay for each of the goods individually are unaffected by whether they are also consuming the other product a typical example is illustrated in figure i adapted from figure iv in adams and yellen where there are two goods three consumers ab c who consume at most one unit of each good with reservation values for each good that are independent of whether the other good is consumed and zero costs of production there a bundle offered at a price of 100 fully extracts all potential surplus which would be impossible pricing the goods independently unfortunately though these authors do not provide any general characterization of the circumstances in which bundling is actually a multiproduct monopolist s optimal strategy their examples however such as figure i create the impression that the profitable use of bundling

equilibrium wage tenure contracts in this study we consider a labor market matching model where firms post wage tenure contracts and workers both employed and unemployed search for new job opportunities given workers are risk averse we establish there is a unique equilibrium in the environment considered although firms in the market make different offers in equilibrium all post a wage tenure contract that implies a worker s wage increases smoothly with tenure at the firm as firms make different offers there is job turnover as employed workers move jobs as the opportunity arises this implies the increase in a worker s wage can be due to job to job movements as well as wage tenure effects further there is a nondegenerate equilibrium distribution of initial wage offers that is differentiable on its support except for a mass point at the lowest initial wage we also show that relevant characteristics of the equilibrium can be written as explicit functions of preferences and the other market parameters

on the basing point system reply david d haddock s 1990 contention is really that the jacques f thisse and xavier vives 1988 and the bruce l benson melvin l greenhut and george norman 1990 papers do not provide a collusive model that yields base point pricing bpp he apparently believes his paper 1982 established competitive bpp and suggests in 1990 that the collusive model and hard empirical work alone remain however no collusive model is required since it has already been well demonstrated in the literature on plant location and spatial price theory that firms at feasible distance locations from a production center would accept bpp only because they fear that to do otherwise would subject them to retaliatory actions by the larger more powerful firms at the production center moreover the paper by thisse vives 1988 henceforth tv and benson greenhut norman 1990 henceforth bgn indicated sufficiently that other systems would arise than haddock s competitive bpp especially since the restrictive conditions necessary for the latter militate against its use haddock in fact appears to accept these conditions in his references to arthur r burns proposals 1936 of nearbase point pricing nbpp hard empirical analysis would indeed be in order in determining the extent of nbpp not competitive bpp this paper responds to the above noted issues in three main sections section i briefly provides some historical data on the collusive uses of bpp for any future researcher who seeks empirically to uncover a

wage risk and the value of job mobility in early employment careers this paper shows that job mobility is a valuable channel that employed workers use to mitigate bad labor market shocks i estimate a model of wage dynamics jointly with a dynamic model of employmen

the impact of firing restrictions on labour market equilibrium in the presence of on the job search job to job turnover provides a way for employers to escape statutory firing costs as unprofitable workers may willfully quit their job on receiving an outside offer or may be induced to accept one that they would otherwise reject with a negotiated severance package we formalise those mechanisms within an extension of the diamond mortensen pissarides model that allows for employed job search we find that our model explains why higher firing costs intensify job to job turnover at the expense of transitions out of unemployment and that ignoring on the job search leads one to overstate the adverse impact of firing costs on employment

policy and non policy determinants of u s equity foreign direct investment this study examined the effects of policy and non policy variables on the location of new u s direct investment abroad as distinct from reinvested earnings of existing affiliates using 1977 and 1982 benchmark data the data revealed statistically significant effects for investment incentives positive performance requirements negative and host country effective tax rates negative with interesting differences between the two time periods and between developed versus developing countries significance was also found for non policy variables such as political stability cultural distance gdp per capita and infrastructure

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

wage differentials employer size and unemployment the unique equilibrium solution to a game in which a continuum of individual employers choose permanent wage offers and a continuum of workers search by sequentially sampling from the set of offers is characterized wage dispersion is a robust outcome provided that workers search while employed as well as when unemployed the unique nondegenerate equilibrium distribution of wage offers is constructed for three cases 1 identical workers and employers 2 identical employers and an atomless distribution of worker supply prices and 3 identical workers and an atomless distribution of job productivities copyright 1998 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

income variance dynamics and heterogeneity recent theoretical work has shown the importance of measuring microeconomic uncertainty for models of both general and partial equilibrium under imperfect insurance in this paper the assumption of i i d income innovations used in previous empirical studies is removed and the focus of the analysis is placed on models for the conditional variance of income shocks which is related to the measure of risk emphasized by the theory we first discriminate amongst various models of earnings determination that separate income shocks into idiosyncratic transitory and permanent components we allow for education and time specific differences in the stochastic process for earnings and for measurement error the conditional variance of the income shocks is modelled as a parsimonious arch process with both observable and unobserved heterogeneity the empirical analysis is conducted on data drawn from the 1967 1992 panel study of income dynamics we find strong evidence of sizeable arch effects as well as evidence of unobserved heterogeneity in the variances

determinants of export orientation of foreign production by u s multinationals an inter country analysis this paper examines the role of structural and policy factors in explaining a country s attractiveness as a base for export oriented production by u s mnes empirical analysis finds wage rates and industrial capability to be important determinants of export oriented production attracted by a country exports generated by relocation are found to be dependent upon intra firm imports u s mnes are found to be using their hosts as export bases more selectively

on the job search and precautionary savings in this paper i develop and estimate a model of on the job search in which risk averse workers choose search effort and can borrow or save using a single risk free asset i derive the implications for optimal savings behavior in this environment and relate this to the frictions that characterize the endogenous earnings process implied by on the job search savings behavior depends in a very intuitive way on the rate at which offers are received the rate at which jobs are destroyed and a worker s current rank in the wage distribution the implication is that workers who are identical in terms of preferences and opportunities have substantially different savings behavior depending on their history and current position in the wage distribution the mechanism that generates the substantial differences in savings behavior in the model is the dynamic of the wage ladder resulting from the search process there is an important asymmetry between the incremental wage increases generated by onthe job search climbing the ladder and the drop in income associated with job loss falling off the ladder the behavior of workers in low paying jobs is primarily governed by the expectation of wage growth while the behavior of workers near the top of the distribution is driven by the possibility of job loss the distributions of earnings wealth and consumption implied by the model suitably aggregated align reasonably well with the data with the notable exception of implying substantially less concentration of wealth among the richest one percent of the population in this paper i develop and estimate a model of on the job search in which risk averse workers choose search effort and can borrow or save using a single risk free asset i derive the implications for optimal savings behavior in this environment and relate this to the frictions that characterize the endogenous earnings process implied by on the job search savings behavior depends in a very intuitive way on the rate at which offers are received the rate at which jobs are destroyed and a worker s current rank in the wage distribution the implication is that workers at different point in the wage distribution have substantially different savings behavior resulting in wealth dispersion that is much greater than earnings dispersion the mechanism that generates the high degree of wealth dispersion in the model is the dynamic of the wage ladder resulting from the search process there is an important asymmetry between the incremental wage increases generated by on the job search climbing the ladder and the drop in income associated with job loss falling off the ladder this feature of the model generates differential savings behavior at different points in the earnings distribution the behavior of workers in low paying jobs is primarily governed by the expectation of wage growth while the behavior of workers near the top of the distribution is primarily driven by the possibility of job loss the wage growth expected by low wage workers combined with the fact that their earnings are not much higher than unemployment benefits causes them to dissave as a worker s wage increases the incentive to save increases the potential for wage growth declines and it becomes increasingly important to insure against the large income reduction associated with job loss the fact that high wage and low wage workers have such different savings behavior leads to a wealth distribution that is much more unequal 1

an integrated location production distribution and investment model for a multinational corporation abstract we present a mixed integer linear formulation that extends published models on multinational corporation facility location decisions by including exogenous variables such as exchange rates and tariff rates and incorporating production distribution and investment decisions the model provides insights on production levels facility configurations distribution strategies and levels of investment needed at these facilities and explores factors that influence the facility s configuration decisions several scenarios are considered based on various facility configurations and levels of exchange and tariff rates the results obtained from these show that the model s performance and results are in complete agreement with accepted economic theories