exchange rate pass through in u s manufacturing industries this paper studies exchange rate pass through in u s manufacturing industries and its cross sectional variation through an adapted dixit stiglitz model of product differentiation the paper predicts that pass through is positively related to the degree of product differentiation and inversely related to the elasticity of marginal cost with respect to output empirical estimates of the pass through elasticities show that pass through is incomplete and varies across industries the degree of pass through is found to be positively correlated to different proxies for product differentiation and negatively to a proxy for the elasticity of marginal cost

the relationship between the markup and inflation in the g7 economies and australia an i 2 analysis of inflation and the markup is undertaken for the g7 economies and australia we find that the levels of prices and costs are best described as i 2 processes and that except for japan a linear combination of the log levels of prices and costs cointegrate to the markup that is integrated of order 1 it is also shown that the markup in each case co integrates with inflation and that higher inflation is associated with a lower markup in the long run

are outcomes driving expectations or the other way around an i 2 cvar analysis of interest rate expectations in the dollar pound market abstract this paper uses consensus forecasts to address empirical puzzles in international macro using the cointegrated var model the data consisting of three month libor rates their three month ahead forecasts prices and exchange rates for the us and uk were all found to be near i 2 consistent with imperfect knowledge expectations the i 2 analysis showed that over the medium run the nominal exchange rate has moved away from equilibrium values with interest rates following suit whereas over the long run the nominal exchange rate was adjusting while the interest rate forecasts pushed the system away from steady state evidence of self reinforcing feedback mechanisms in the system signals the importance of speculative bubbles for the determination of the exchange rate and the interest rates

software piracy an analysis of protection strategies software piracy by users is generally believed to harm both software firms through lower profits and buying customers through higher prices thus it is thought that perfect and costless technological protection would benefit both firms and consumers the model developed here suggests that in some circumstances even with significant piracy not protecting can be the best policy both raising firm profits and lowering selling prices key to the analysis is joining the presence of a positive network externality with the fact that piracy increases the total number of program users the network externality exists because consumers have an incentive to economize on post purchase learning and customization costs

economic and policy implications of restricted patch distribution in this paper we study how restricting the availability of patches to legal users impacts the vendor s profits market share software maintenance decisions and welfare outcomes prior work on this topic assumes that the hacker s effort is independent of the vendor s decision to release the patch freely or not clearly if the patch is not available to everyone the hacker finds it easier to exploit the vulnerability in the product and as a result is likely to alter his effort to understand the role of a strategic hacker we build a game theoretic model where the hacker s decision is endogenous with this model we find that the hacker s effort may on the one hand decrease the utility that the vendor can extract from the consumers but on the other hand may help differentiate the legal version of the product from the pirated version a vendor can strategically exploit the hacker s behavior in its pricing and software maintenance decisions the endogeneity of the hacker s actions drives several of

nonlinear adjustment to purchasing power parity in the post bretton woods era abstract this paper models the dynamics of adjustment to long run purchasing power parity ppp over the post bretton woods period in a nonlinear framework consistent with the presence of frictions in international trade we estimate exponential smooth transition autoregressive estar models of deviations from ppp which are obtained using the johansen cointegration method for both consumer price index cpi and wholesale price index wpi based measures and a broad set of us trading partners in several cases we find clear evidence of a mean reverting dynamic process for sizable deviations from ppp with the equilibrium tendency varying nonlinearly with the magnitude of disequilibrium analysis of impulse response functions also supports a nonlinear dynamic structure but convergence to long run ppp in the post bretton woods era is very slow

potential pitfalls for the purchasing power parity puzzle sampling and specification biases in mean reversion tests of the law of one price the ppp puzzle is based on empirical evidence that international price differences for individual goods loop or baskets of goods ppp appear highly persistent or even nonstationary the present consensus is these price differences have a half life that is of the order of five years at best and infinity at worst this seems unreasonable in a world where transportation and transaction costs appear so low as to encourage arbitrage and the convergence of price gaps over much shorter horizons typically days or weeks however current empirics rely on a particular choice of methodology involving i relatively low frequency monthly quarterly or annual data and ii a linear model specification in fact these methodological choices are not innocent and they can be shown to bias analysis towards findings of slow convergence and a random walk intuitively if we suspect that the actual adjustment horizon is of the order of days then monthly and annual data cannot be expected to reveal it if we suspect arbitrage costs are high enough to produce a substantial band of inaction then a linear model will fail to support convergence if the process spends considerable time random walking in that band thus when testing for ppp or loop model specification and data sampling should not proceed without consideration of the actual institutional context and logistical framework of markets

industry structure and the dynamics of price adjustment using annual us data for gross domestic product originating by sector between 1947 and 1997 it is shown that a negative long run relationship between inflation and the markup is present across the sectors as well as in the aggregate data a preliminary explanation based on industry structure is explored for the relative sizes of the impact of inflation on the markup in the long run for the various sectors

price discrimination by u s and german exporters the insensitivity of the u s trade balance to the sharp depreciation of the dollar in the past three years has revived interest in the relationship between exchange rates and the trade balance a central issue in most analyses of the relation between the current account and the exchange rate concerns the price adjustment process the simple integrated competitive market model predicts that local currency prices should change in proportion to the nominal exchange rate for a country too small to influence world prices the relationship between local currency import prices and exchange rates has been referred to as the pass through relationship in the empirical literature in international economics if the proportional relationship between import prices and exchange rates holds pass through is said to be complete accounts of recent u s experience cite the failure of dollar prices of imported goods to rise in proportion to exchange rates i e incomplete pass through as an important factor in explaining the persistence of the trade deficit unfortunately observations on pass through alone provide limited insight into the behavior of markets since incomplete pass through is consistent with at least two fundamentally different paradigms one is the standard competitive model of trade in which the law of one price holds but exchange rate fluctuations are associated with large changes in import demand due to other factors for example if dollar appreciation is correlated with increases in world demand and industry marginal cost is increasing then pass through will be less than complete the other is an imperfectly competitive model in which exporters are capable of price discriminating across destination markets a phenomenon paul krugman 1987 has labeled pricing to market in this model incomplete pass through is typically associated with fluctuations in the markup of price over marginal cost on exports 2 these fluctuations in markups are believed to be countryspecific they do not reflect the behavior of prices to other export destinations both models are plausible explanations of recent u s experience unfortunately it is impossible to distinguish between these competing models using only information on import prices and exchange rates for a single country in order to distinguish between the competing models an empirical analysis of goods prices and exchange rates must be capable of measuring either marginal cost or the markup over marginal cost either of these tasks poses formidable empirical problems much of the empirical literature in industrial organization has been concerned with precisely these issues since markups are an important measure of the competitiveness of industries

collusion and price rigidity we consider an in nitely repeated bertrand game in which prices are publicly observed and each rm receives a privately observed i i d cost shock in each period we focus on symmetric perfect public equilibria sppe wherein any punishments are borne equally by all rms we identify a tradeoff that is associated with collusive pricing schemes in which the price to be charged by each rm is strictly increasing in its cost level such fully sorting schemes offer efficiency bene ts as they ensure that the lowest cost rm makes the current sale but they also imply an informational cost distorted pricing and or equilibrium path price wars since a higher cost rm must be deterred from mimicking a lower cost rm by charging a lower price a rigid pricing scheme where a rm s collusive price is independent of its current cost position sacri ces efficiency bene ts but also diminishes the informational cost for a wide range of settings the optimal symmetric collusive scheme requires i the absence of equilibrium path price wars and ii a rigid price if rms are sufficiently impatient however the rigid pricing scheme cannot be enforced and the collusive price of lower cost rms may be distorted downward in order to diminish the incentive to cheat when the model is modi ed to include i i d public demand shocks the downward pricing distortion that accompanies a rm s lower cost realization may occur only when current demand is high

a quantitative reassessment of the purchasing power parity hypothesis evidence from norway and the united kingdom summary annual data from norway and the united kingdom from 1874 to 1971 are used to reassess the empirical performance of the purchasing power parity ppp doctrine the simple version of the ppp relationship is supported by the data only if different short run dynamics during a floating rate period 1914 1928 is allowed for two sets of factors were found to be important in amending the simple ppp model these were short run cyclical variables affecting the adjustment towards the ppp equilibrium relationship and long run structural factors such as productivity and terms of trade within this expanded model the proportionality between the exchange rate and relative price levels could not be rejected

co integrating var models and economic policy this paper surveys some relevant contributions to the economic literature on co integrating vector autoregressive var models vector error correction mechanisms vecms emphasizing their usefulness for economic policy it further discusses some theoretical aspects that are necessary for a complete understanding of their potential the theoretical introduction of the co integrating var model is followed by an illustration of its applications to monetary policy fiscal policy and exchanges rates as well as in establishing the effects of structural bilateral shocks between countries the so called global var or gvar models special attention is paid to the vecm capacities of being used in conjunction with dynamic stochastic general equilibrium models and of jointly specifying the short and long run dynamics thus representing the steady state of economic systems by means of the co integration relations and the short run dynamics around it

purchasing power parity as a long run relation dickey fuller and stock watson tests of purchasing power parity ppp as a long run proposition are provided within the cointegration framework proposed by granger since different countries use different weights to construct price indices the traditional constraint that the coefficients on the price indices should be unity in the log linear ppp relation is relaxed the absence of a general ppp relation cannot be rejected at most a ppp relation is indicated in five out of fifteen country pairs that are examined even if a long run ppp relation exists it is not found to be useful in predicting future nominal exchange rates which is consistent with efficient speculative markets

testing the purchasing power parity through i 2 cointegration techniques this paper contributes to the empirical literature on the purchasing power parity ppp over the post bretton woods period by providing a time series based interpretation of the controversial evidence characterizing the dynamics of real exchange rates it is shown that the persistence of deviations from the ppp between a set of european countries and the united states may be empirically attributed to the presence of i 2 stochastic trends in prices using consumer price indices interestingly the slow adjustment towards the equilibrium can be modelled through integral proportional equilibrium correction models and this evidence can be partly reconciled with theories where the inflation rate reduces the markup of profit maximizing firms acting on imperfectly competitive markets copyright 2005 john wiley sons ltd

is price adjustment asymmetric evaluating the market share and marketing bottlenecks hypothesis abstract export price adjustment is asymmetric with respect to currency fluctuations in at least two circumstances if firms face capacity constraints in distribution networks or quantitative trade restrictions then pricing to market may be greater during depreciations of the exporter s currency if firms attempt to build market share subject to the threat of trade restrictions then pricing to market may be greater during appreciations of the exporter s currency this paper tests for asymmetries using panel data on german and japanese 7 digit industry exports the data seldom reject the hypothesis of a symmetric response of prices to exchange rates

international dynamic risk sharing in this paper we examine the implications of international risk sharing among a set of countries in the presence of market frictions which complicate the instantaneous adjustment to the first order conditions we suggest approximating the consumption streams of countries belonging to the risk sharing coalition in terms of a disequilibrium dynamic model embodying forward looking adjustment econometric methods for estimating and testing the model are discussed empirical analysis of a set of core european countries suggests that once preference parameters are allowed to vary across countries we are able to identify a group of nations that share risks against idiosyncratic permanent income shocks the equilibrium position however is reached after a long adjustment period copyright 2008 john wiley sons ltd

investigation of production sales and inventory relationships using multicointegration and non symmetric error correction models the accumulated sum of a stationary series is called integrated if a linear combination of some of the integrated series is stationary it is said to be cointegrated this paper presents empirical results on inventories to consider the possibility of a deeper form of cointegration called multicointegration which is introduced in granger and lee 1989 a vector integrated series is multicointegrated if the accumulated sum of its stationary cointegrated linear combination is again cointegrated with itself inventory which is the accumulated sum of production minus sales is probably cointegrated with production and sales the empirical results generally support the presence of multicointegration of production and sales in many u s industries and industrial aggregates the results also favour the non symmetric error correction model providing evidence that the strength of attraction is different on both sides of the attractor a modified s s rule for inventory control is investigated in the context of a non symmetric error correction model and the results generally do not support the s s rule sufficient evidence is found to conclude that multicointegration is a useful concept in the area of inventory determination

markup adjustment and exchange rate fluctuations evidence from panel data on automobile exports abstract this paper uses data on bilateral automobile export prices from the usa germany and japan to gauge the importance of markup adjustment driven by exchange rate movements across several destination markets we find that japanese exports are characterized by a high degree of markup adjustment designed to stabilize the price measured in the buyer s currency there is weak evidence for such behavior on the part of german exporters and no evidence of markup adjustment by us exporters where it exists markup adjustment tends to be highly persistent the dynamic pattern of markup adjustment is consistent with invoicing in the exporter s currency except for exports to the usa and canada

buying sharing and renting information goods information goods such as books journals computer software music and videos can be copied shared resold or rented when such opportunities for sharing are present the content producer will generally sell a smaller amount at a higher price which may increase or decrease profits i identify three circumstances where profits increase 1 when the transactions cost of sharing is less than the marginal cost of production 2 when content is viewed only a few times and transactions costs of sharing are low and 3 when a sharing market provides a way to segment high value and low value users

pricing to market in a small open economy the determinants of norwegian import prices of manufactures are investigated over the period 1970 1 1991 4 multivariate cointegration analysis establishes a long run relationship between import prices foreign prices the exchange rate and domestic unit labour costs normalized on import prices the long run elasticities are 0 63 foreign prices and the exchange rate and 0 37 domestic costs deviations from this relationship are highly significant in a structural import price equation which also contains positive effects of growth in domestic demand and inflation as well as a negative effect from the norwegian unemployment rate the estimated parameters appear reasonably stable within the sample

software copyright infringement among college students in recent years the issue of infringement in the software industry has gained international attention as the demand for software continues to grow the growing presence of unauthorized reproduction of copyrighted products inhibits full potential growth and discourages creative activity this study analyses the extent of software copyright infringement among college students and attitudes of these students with regard to risk of apprehension and conviction this study finds a significantly higher likelihood of infringement for computer majors and male students and a decrease in the likelihood of infringement for older students this study also uncovers differences in attitudes toward risk of apprehension and conviction between majors in scientific fields and those in business and economics whereas the first group of majors appears to exhibit risky behaviour the latter tends to be more risk averse

trading higher software piracy for higher profits the case of phantom piracy faced with the sustained problem of piracy that costs nearly 40 billion in annual revenue losses the software industry has adopted a number of technical legal and economic strategies to curb piracy and stem the resulting losses our work complements and contributes to the existing literature by exploring the possible effect of another economic lever product bundling on the relationship governing piracy and seller profits the traditional economic rationale of demand pooling from bundling that enables sellers to extract higher surplus and its particular attractiveness for information goods with negligible marginal and bundling costs carry over to our analysis however the presence of piracy injects several new facets to our analysis bundling creates a shared level of piracy of disparate products and under certain conditions to the detriment of one of the products we argue that by construction of the copyright laws the act of bundling itself can have a deterrence effect this deterrence effect alo

the welfare implications of unauthorized reproduction of intellectual property in the presence of demand network externalities this paper finds that unauthorized reproduction of intellectual property in the presence of demand network externalities can not only induce greater firm profits relative to the case where there is no copying it can lead to a pareto improvement in social welfare ceteris paribus when network externalities are present firms have a greater incentive to expand output because marginal revenue is higher and or they may wish to create preemptive installed bases this paper suggests that unauthorized copying can be a relatively efficient means of achieving this by allowing the firm in effect to price discriminate among different classes of consumers copyright 1994 by blackwell publishing ltd

an i 2 analysis of inflation and the markup an i 2 analysis of australian inflation and the markup is undertaken within an imperfect competition model it is found that the levels of prices and costs are best characterized as integrated of order 2 and that a linear combination of the levels which may be defined as the markup cointegrates with price inflation from the empirical analysis we obtain a long run relationship where higher inflation is associated with a lower markup and vice versa the impact in the long run of inflation on the markup is interpreted as the cost to firms of overcoming missing information when adjusting prices in an inflationary environment copyright 2001 john wiley sons ltd

multi country evidence on the behavior of purchasing power parity under the current float abstract using panel data for the united states and 22 other oecd countries for the current float this paper presents evidence that despite substantial short term perturbations purchasing power parity actually performed much better than commonly believed average rates of growth of real exchange rates over long horizons bear little relationship either to average rates of growth of nominal exchange rates or to average inflation differentials thus implying a close to one to one relation between average rates of growth of nominal exchange rates and average inflation differentials panel data variants of standard unit root tests suggest that the real exchange rates of these countries can be characterized as mean reverting

exchange rates and traded goods prices abstract this paper presents a partial equilibrium model of the determination of domestic and export prices by a monopolistic competitive firm the model stresses the role of exchange rate uncertainty and expectations the most important result of the analysis is that the stochastic properties of deviations from the law of one price are crucially affected by the currency of denomination of export prices using data on domestic and dollar export prices of japanese goods i find that deviations from the law of one price are due to exchange rate surprises but also to price staggering and ex ante price discrimination

a panel project on purchasing power parity mean reversion within and between countries abstract previous time series studies have shown evidence of mean reversion in real exchange rates deviations from purchasing power parity ppp appear to have half lives of approximately four years however the long samples required for statistical significance are unavailable for most currencies and are potentially inappropriate because of regime changes in this study we re examine deviations from ppp using a panel of 150 countries and 45 annual post wwii observations our panel shows strong evidence of mean reversion that is similar to that from long time series ppp deviations are eroded at a rate of approximately 15 annually i e their half life is around four years such findings can be masked in time series data but are relatively easy to find in cross sections

goods prices and exchange rates what have we learned import prices typically change by a smaller proportion than the exchange rate between the exporting and importing country recent research indicates that common currency relative prices for similar goods exported to different markets are highly correlated with exchange rates between those markets this evidence suggests that incomplete pass through is a consequence of third degree price discrimination while distance matters for market segmentation borders have independent effects the source of the border effect has not been clearly identified furthermore there is little evidence yet to suggest substantial market power is implied by the observed price discrimination

the response of the us export prices to changes in the dollar s effective exchange rate further evidence from industry level data the relationship between the dollar s effective exchange rate and the export price indexes for 13 two digit us manufacturing industries is analysed to determine i which industry adjusts its dollar export price to dampen or amplify the effect of the exchange rate fluctuations on the foreign currency price of its exports and ii whether the response of the export price index to appreciation and depreciation of the exchange rate is asymmetric for several industries evidence consistent with dampening the foreign currency price of exports in an asymmetric fashion is found the implications of the results for the price competitiveness of the industries studied is discussed

linear or nonlinear cointegration in the purchasing power parity relationship we test long run purchasing power parity ppp within a general model of cointegration of linear and nonlinear form nonlinear cointegration is tested with rank tests of breitung 2001 we determine first the order of integration of each variable using monthly data from the post bretton woods era for g 10 countries in many cases prices are i 2 whereas all exchange rates are i 1 however there are several countries that have a price level that linearly cointegrates with the us price level so that this combination is i 1 overall we find some though limited evidence for nonlinear and also linear cointegration for the weak version of ppp

accounting for u s real exchange rate changes this study measures the proportion of u s real exchange rate movements that can be accounted for by movements in the relative prices of nontraded goods the decomposition is done at all possible h

transactions costs and nonlinear adjustment in real exchange rates an empirical investigation eolquilibrium models of real exchange rate determination in the presence of transactions costs imply a nonlinear adjustment process toward purchasing power parity ppp conventional cointegration tests which ignore the effect of transactions costs may be biased against the long run ppp hypothesis our results using both monthly data for the interwar period and annual data spanning two centuries clearly reject the linear framework in favor of an exponential smooth transition autoregressive process the systematic pattern in the estimates of the nonlinear models provides strong evidence of mean reverting behavior for ppp deviations and helps explain the mixed results of previous studies

searching for stationarity purchasing power parity under the current float abstract using panel data methods we investigate long run purchasing power parity by testing for unit roots in real exchange rates of industrial countries under the current float the evidence against the unit root hypothesis is stronger for larger than for smaller panels for monthly than for quarterly data and when the german mark rather than the united states dollar is used as the base currency while we find that accounting for serial correlation considerably weakens the evidence against the unit root null the results as a whole are consistent with long run purchasing power parity

international comparisons of pricing to market behavior this paper measures the degree of price discrimination across export destinations that is associated with exchange rate changes using u s u k german and japanese industry level data given the industries sampled more price discrimination across destinations is observed in the u k german and japanese data for industries that match across source countries however behavior is very similar across source countries furthermore destination specific price adjustment on exports to the united states from germany and japan is similar to price adjustment observed on shipments to other destinations most variation in the data appears to be related to industry copyright 1993 by american economic association