a note on interest parity and the supply of arbitrage funds the divergence of the actual forward premium on foreign exchange from that dictated by the principle of interest rate parity can arise from two separately identifiable causes 1 an equilibrium position as indicated by the interest parity principle has not been reached or 2 that the principle itself is not a correctly specified equilibrium condition it is the purpose of this note to offer a revised specification of the interest parity condition and to determine whether this version approximates more closely the actual premium as determined in the market it should be made clear however that this is a partial analysis and does not deal with the impact of other forces for example speculation on the forward premium as a result a complete model of the spot and forward markets for foreign exchange such as stein s 1965 is not attempted here in general the principle of interest parity maintains that in equilibrium

determination of the international maize price what is the growing role of brazil and ukraine this paper examines the relationships among maize prices for four countries to determine if newly emerging exporters brazil and ukraine influence the international price of maize our work focuses on each market s participation in the price discovery process rather than trying to determine a price leader we find that the united states plays the largest role in price discovery followed by argentina brazil and ukraine we also search for export thresholds and find that ukraine s contribution to price discovery rises slightly when an export threshold of 2 3 million tons is reached no export thresholds were found for brazil export thresholds for argentina were found but only have a minor impact on price relationships we also found that price relationships vary considerably across seasons of the year

union characteristics and bargaining outcomes this paper investigates the impact of union militancy size centralization and democracy on wages fringe benefits and other bargaining outcomes using data on bargaining outcomes at the bargaining unit level in conjunction with data on comparative union characteristics the authors find strong evidence that union characteristics affect bargaining outcomes determining the exact nature of those effects is complicated by several problems notably the difficulty of distinguishing effects on outcomes from effects on goals the possibility of reverse causality and complex interactions between such organizational characteristics as democracy and centralization the findings do suggest however that organizational complexity reduces union bargaining effectiveness whereas democracy and centralization tend to change the shape of outcomes as opposed to their size

price movements and price discovery in futures and cash markets r isk transfer and price discovery are two of the major contributions of futures markets to the organization of economic activity working 1962 evans 1978 p 80 and silber 1981 risk transfer refers to hedgers using futures contracts to shift price risk to others price discovery refers to the use of futures prices for pricing cash market transactions working 1948 wiese 1978 p 87 and lake 1978 p 161 the significance of both contributions depends upon a close relationship between the prices of futures contracts and cash commodities this paper examines the characteristics of price movements in cash or spot markets and futures markets for storable commodities section ii presents an analytical model of simultaneous price dynamics which suggests that over short intervals of time the correlation of price changes is a function of the elasticity of arbitrage between the physical commodity and its counterpart futures contract greater elasticity fosters more highly correlated price changes and thereby facilitates the risk transfer function the elasticity of supply of arbitrage services is constrained by among other things storage and transaction costs thus futures contracts will not in general provide perfect risk transfer facilities over short time horizons the essence of the price discovery function of futures markets hinges on whether new information is reflected first in changed futures prices or in changed cash prices hoffman 1932 pp 258259 the model in section ii provides a framework for analyzing whether one market is dominant in terms of information flows and price discovery in section iii we develop a model based on section ii which is appropriate for estimating the lead lag relationship between cash prices and futures prices section iv presents empirical estimates of the parameters of the model for seven different storable commodities wheat corn oats frozen orange juice concentrates copper gold and silver the cost of arbitrage between cash and futures differs across these commodities for this reason we are not surprised to find inter commodity differences in the correlation of short run price changes and in the substitutability of futures contracts for cash market positions with respect to the price discovery function of futures markets we find that while futures markets dominate cash markets cash prices do not merely echo futures prices there are reverse information flows from cash markets to futures markets as well

union organizing costs and benefits this paper examines the costs and benefits to current union members in manufacturing of programs to organize the unorganized the marginal cost of organizing an additional employee in constant dollars is estimated for a sample of unions between 1964 and 1977 the primary benefit of organizing that is quantifiable is the extent to which the maintenance or extension of union coverage permits the maintenance of or increase in the union wage estimates of this benefit are derived from previous econometric research linking the union wage to the percentage of the industry organized this single benefit is found to be larger than the estimated marginal cost of extending union coverage in 19 of 20 manufacturing industries

reexamining intraday simultaneity in stock index futures markets abstract this note examines three empirical examples involving intraday dynamic relationships associated with stock index futures markets researchers often employ a vector autoregressive var model to analyze such high frequency transactions data while such a model can provide useful information regarding the nature of causal priority inherent in the data it is not the proper model to investigate the structural relationships of interest because it omits the contemporaneous interaction on the other hand a var model specification which is altered to incorporate simultaneity may enable the data to reveal the structural relationships of interest

an analysis of price discovery between bitcoin futures and spot markets abstract this paper analyzes the bitcoin price discovery process we collect data on futures and spot prices for the period december 2017 to may 2018 and compute hasbrouck s information share and gonzalo and granger s common factor component to quantify the contribution of each market to the price discovery process both measures coincide in suggesting that the bitcoin futures market dominates the price discovery process we also find that both prices are driven by a common factor that is given by a weighted combination of the futures and spot market finally we observe that deviations from the equilibrium condition equating the futures and spot log price have predictive ability for the return on the bitcoin spot price but not on the futures price

how smooth is price discovery evidence from cross listed stock trading abstract the adjustment to parity can be nonlinear for a cross listed pair convergence may be quicker when the price deviation is sufficiently profitable we propose a threshold error correction model ecm to gauge the market respective information shares of canadian listings traded on the toronto stock exchange tsx and the new york stock exchange nyse since dynamics may alternatively be gradual we further generalize the threshold framework to a smooth transition ecm the empirical implications are as follows first the tsx and the nyse appear to have integrated over time second parity convergence accelerates upon discounts on the cross listings on the nyse third we find a larger feedback from the nyse if the price gap exceeds the threshold required arbitrage return fourth informed traders tend to cluster on the nyse upon discounts on the cross listings fifth information share and threshold are affected by the relative degree of private information market friction and liquidity measures firm level characteristics and aggregate risks

the role of trader positions in spot and futures prices for wti abstract we extend the analysis of causal relations between trader positions and oil prices and the process of price discovery by estimating a cointegrating vector autoregression cvar model that expands the cash and carry relation between spot and futures prices to quantify long and short run relations among oil prices trader positions interest rates and oil inventories results indicate that oil inventories and trader positions are needed to generate cointegration between spot and futures prices the presence of trader positions and oil inventories suggest that both play a role in price discovery furthermore the cointegrating relation for price loads into the equation for both oil prices and trader positions this suggests a bi directional simultaneous adjustment process between oil prices and trader positions this expands the unidirectional causal relation from oil prices to trader positions that is generated by previous studies additional results suggest that price discovery occurs in the market for heavily traded near month futures contracts but discovery for thin far month futures markets occurs in the spot market together these results suggest mechanisms by which speculation could affect oil prices but the results presented here are moot regarding their effects

how reliable are hog futures as forecasts the chicago mercantile exchange hog futures contract was revamped in 1997 and it is one of the largest futures markets for a nonstorable commodity the literature is divided on whether or not futures prices for nonstorables provide reliable forecasts of cash prices we find that from 1998 to 2004 the hog futures market was an unbiased predictor of cash prices copyright 2008 oxford university press

international price discovery in finnish stock index futures and cash markets abstract this paper investigates empirically how the information of the world s stock markets is reflected in the thin finnish stock index futures and cash markets the world wide returns seem to have a significant leading ability for predicting finnish stock index futures returns however this kind of causal relation is not observed between the world wide and stock market returns the finnish stock index futures returns then show significant granger causality with finnish stock market returns the stock market being the lagging one the relationship is improved by allowing the association between markets to be different for positive and negative returns the findings of this study suggest short selling restrictions and other market frictions to be a significant factor leading to a delay in the pricing process in the stock market

the effects of the nlra on stockholder wealth in the 1930s whereas most recent research examining the effects of the nlra on labor management relations has focused on the impact of specific provisions of the law this study provides an estimate of the impact of the passage of the nlra on 75 firms that were at great risk of being unionized in the 1930s taking changes in shareholder wealth as a measure of the shift in the balance of power caused by the nlra the authors find that the passage of the nlra caused a statistically and economically significant decline in shareholder wealth for the sampled firms specifically by april 1937 stockholder wealth in the firms was 15 9 lower than would have been expected had the nlra not been enacted t he impact of public policy on the balance of power between labor and management has always been a fundamental topic in industrial relations recent changes in many labor management relationships have renewed interest in the influence of public policy on labor relations and raised questions of how modifications in these policies might alter the behavior of the parties according to delaney lewin and sockell 1985 the empirical research on this topic has largely concentrated on specific provisions of the wagner act such as election procedures and regulation of employer unfair labor practices for example getman gold

price discovery in energy markets abstract in this study we empirically analyze the price discovery process in the futures and spot markets for crude oil heating oil and natural gas using daily closing prices we use two different information share measures that are based on the methods proposed by gonzalo and granger 1995 and lien and shrestha 2014 both measures indicate that almost all the price discovery takes place in the futures markets for the heating oil and natural gas however for the crude oil the price discovery takes place both in the futures and spot markets as a whole our study indicates that futures markets play an important role in the price discovery process

revenue management under joint pricing and capacity allocation competition abstract we investigate joint pricing and capacity allocation decisions of a duopoly each of which competes in selling a fixed amount of substitutable perishable goods in both early discount and regular full fare markets with demand uncertainty upon a firm s stockout unsatisfied demand spillovers to the competitor depending on the substitutability of products offered by the two firms we first show that there exists a pure strategy nash equilibrium for identical firms there exists a unique pure strategy nash equilibrium that is symmetric then we study how firms pricing and capacity allocation decisions depend on operational and market conditions in particular we show that more cut throat competition in the full fare market never leads to a rise in the price and a fall in the protection level simultaneously in the full fare market we demonstrate a similar result of comparative statics for the competition intensity in the discount market in comparison with a monopolist s optimal decision a duopoly equilibrium never results in a situation that definitely benefits the full fare consumers in both dimensions of price and availability finally we examine how the adoption of early discount as practiced in the airline industry may benefit competing firms when one of the two firms first introduces early discount sales we find that there is a free ride effect for the other firm interestingly the free rider can benefit more than the adopter especially with stronger competition

the union threat this paper studies the impact of unions on wage inequality output and unemployment to do so it proposes a search and matching model of union formation in which unions arise endogenously through a voting process within firms in a union firm workers bargain their wages collectively in a nonunion firm each worker bargains individually with the firm because of this wage setting asymmetry a union lowers the profit of a firm and compresses the wage distribution of the workers furthermore to prevent unionization nonunion firms distort their hiring decisions in a way that also lowers the dispersion of wages after being calibrated on the united states the model shows that even though a partial equilibrium estimate would predict a small impact of unions on inequality removing the threat of unionization increases the variance of wages substantially completely outlawing unions increases wage inequality further moreover outlawing unions increases welfare and output and lowers unemployment these results suggest that even with a small membership unions might have a significant impact on the economy through general equilibrium mechanisms and the way they distort firms decisions i am greatly indebted to nobuhiro kiyotaki esteban rossi hansberg and oleg itskhoki for their invaluable advice and support throughout this project special thanks go to esteban for suggesting the title i also wish to thank manuel amador orley ashenfelter francisco buera jeff campbell pablo fajgelbaum henry farber baris kaymak david lee thomas lemieux benjamin moll justinas pelenis edouard schaal andrew shephard christopher sims liz tennant as well as seminar participants at princeton university and the chicago fed rookie seminar for helpful comments and suggestions i gratefully acknowledge financial support from the fonds quebecois de recherche sur la societe et la culture email mtascher princeton edu address 001 fisher hall department of economics princeton university princeton nj 08544 for the most recent version go to http sites google com site mathtd

departures from interest rate parity further evidence abstract daily data are used to test the theory of interest parity between the irish pound and three major currencies the tests are carried out within the context of a model suggested by pippenger 1978 and the statistical methodology used is spectral analysis the pippenger model emphasises the relaxation of two important implicit assumptions the exogeneity of the interest differential and the assumed infinitely elastic supply of arbitrage funds which have tended to characterise previous studies we attempt to reconcile our results which are generally supportive of interest parity with the exchange control arrangements currently in force in ireland

a reinterpretation of the modern theory of forward exchange rates the modern theory of forward exchange rate determination mt has been widely although not unanimously accepted as an improvement over the traditional interest rate panty theory irpi the latter theory contends that in equilibruim the forward rate f will equal except for transactions costs the interest panty forward rate f 1 covered interest arbitrage cia is a pnmary but as shall be seen not the only force insunng this equilibnum condition for the forward market for example if f exceeds f then covenng arbitrageurs borrow or forego lending in the domestic country purchase the foreign currency on the spot market lend abroad at the foreign interest rate and simultaneously sell the foreign currency including interest on the forward market these transactions cause f to decline and or f to increase until equilibnum is restored motivated in part by early empincal studies of the irpi which found evidence of apparent deviations of f from f and by the intuitively appealing argument that expectations or speculation can also influence f the mt suggests that the equilibrium forward rate is better explained as a weighted average of f and the expected

spot versus forward speculation and hedging a diagrammatic exposition abstract it has recently been recognized that the controversial implication of the modern theory of forward exchange that the forward rate can differ from the rate required for interest parity no longer holds when speculators are allowed to choose between spot and forward speculation this paper shows this result within the diagrammatic apparatus usually used to describe the modern theory the paper also shows the effect of importers and exporters choosing between spot and forward hedging it is observed that when either speculators or traders can choose between money market and forward speculation hedging forward rates equal interest parity rates the diagram can be adapted to consider borrowing lending spreads etc

price discovery in oil markets a time varying analysis of the 1990 1991 gulf conflict abstract this study examines the behaviour of crude oil spot and futures markets in the uk and usa during the 1990 1991 gulf conflict the objective is to investigate the relative ability of spot and futures markets to impound information this is achieved with the use of a generalized model of price discovery which represents a synthesis of the two most commonly used methodologies in its field emphasis is placed on the time varying nature of price discovery relationships results indicate that such relationships are strongly temporal these findings offer new insights into the nature of relationships between spot and futures markets

stock index futures mispricing profit opportunities or risk premia this paper reports empirical evidence on stock index futures pricing based on about four years of synchronous hourly data from the uk reported index values are based on firm quotes identified arbitrage opportunities are therefore actually exploitable and economically significant the analysis controls for cash market settlement procedures the results show that ex ante trading rules would have generated attractive profits after transaction costs and after the risks of dividend uncertainties marking to market and possible delays in execution are considered the far contract and the near contract tend to be mispriced in the same direction the mild tendency of futures to be overpriced in rising markets and underpriced in falling markets appears to be unimportant finally significant positive relationships are observed between the absolute magnitude of mispricing and time to maturity and between mispricing and index option implied volatility

union organization in advanced industrial democracies i suggest a new explanation of cross national differences in unionization rates the size of the labor force size matters because the gains unions are able to achieve in collective bargaining depend on the proportion of substitutable workers who are organized while the costs of organizing depend in part on the absolute number to be recruited the comparison of the costs and benefits of organizing new workers yields the conclusion that unions in larger labor markets will accept lower levels of unionization statistical analysis of cross national differences in unionization rates among advanced industrial societies in the late 1970s indicates that the size of the labor force and the cumulative participation of leftist parties in government explain most of the variance

assessing the role of futures position substitutability in a monthly slaughtered pork factor demand by us processors a cointegrated var model approach abstractthis article combines cointegrated var modelling with basic neoclassical production microeconomics in a new way that tests for and illuminates the empirical nature of the monthly us pork processing sector s factor demand for slaughtered pork statistical evidence strongly suggests that the us pork processing sector has a hicksian cobb douglas slaughtered pork demand that arises from applying shephard s lemma to the sector s cost function and that us pork processors treat slaughtered pork and related futures positions as close factor substitutes in the wake of major and ongoing futures market events and trends this study establishes and statistically tests a theoretical link between futures price movements and impacts on the underlying slaughtered pork market through monthly formation of us pork processors factor demand for slaughtered pork evidence suggests that demand agents shift between demands for the two substitutes based on movements in the slaughter futures price ratio that results in

union suppression and certification success over the past decade a number of provinces have abandoned the long standing canadian tradition of automatic certification of unions based on card signing and instead opted for mandatory representation voting this trend however has developed with little understanding of the effectiveness of management opposition within a voting regime in this paper the impact of union suppression on union organizing success within the voting regime of british columbia is examined we find that union suppression tactics were highly effective with estimates rivalling those found in the united states moreover results from instrumental variable models suggest that ols estimates may seriously underestimate the true impact of suppression effort de suppression du syndicat et succes dans le processus de certification au cours de la derniere decennie un certain nombre de provinces canadiennes ont abandonne la pratique traditionnelle de certification automatique des syndicats sur la base des signatures de cartes d adhesion au syndicat et ont choisi de reclamer un scrutin pour determiner le support des membres potentiels on ne comprend pas bien l efficacite de l action d opposition des patrons au syndicat dans ce regime de scrutin ce memoire examine l impact des efforts de suppression des syndicats sur les succes des syndicats dans leurs efforts d organisation dans le cadre du regime de scrutin en colombie britannique on decouvre que ces tactiques ont ete tres efficaces tout autant qu aux etats unis de plus les resultats obtenus a l aide de modeles de variables instrumentales montrent que ceux qu on obtient a l aide de la methode des moindres carres ordinaires peuvent sous evaluer l impact des tactiques de suppression de maniere significative

mathematical programming for network revenue management revisited mathematical programming models for airline seat inventory control provide booking limits and bid prices for all itineraries and fare classes e l williamson airline network seat inventory control methodologies and revenue impacts ph d thesis massachusetts institute of technology cambridge ma 1992 finds that simple deterministic approximation methods based on average demand often outperform more advanced probabilistic heuristics we argue that this phenomenon is due to a booking process that includes nesting of the fare classes which is ignored in the modeling phase the differences in the performance between these approximations are studied using a stochastic programming model that includes the deterministic model as a special case our study carefully examines the trade off between computation time and the aggregation level of demand uncertainty with examples of a multi leg flight and a single hub network

public sector earnings and the extent of unionization many studies have examined the influence of union density union members as a percentage of all workers on earnings in the private sector but few such studies have looked at the public sector using data from the 1991 current population survey this study estimates the determinants of earnings for state and local government employees in both the union and nonunion sectors the extent of public sector unionization appears to be positively correlated with earnings for both state and local government workers and for those covered and not covered by collective agreements although the effect for non covered employees is smaller than that for covered employees both effects are larger than those typically found in similar estimates for the private sector the authors also find that bargaining structure has some influence on earnings with the most consistent effect being a positive influence of arbitration on the earnings of local government workers

contraction and expansion the divergence of private sector and public sector unionism in the united states the institutional structure of the american labor market changed remarkably from the 1950s and 1960s to the 1980s in the 50s and 60s trade unions seemed permanently established in the private sector of the economy a third of nonagricultur al wage and salary workers and over half of blue collar workers were union members hundreds of thousands of workers voted annually in national labor relations board nlrb representation elections to join unions most large firms sought stable collective bargaining relations with their unions by contrast in the public sector only 10 12 percent of workers were union members fewer were covered by collective bargaining contracts and most experts regarded public employees as intrinsically nonorganizable according to afl cio president george meany it was impossible to bargain collectively with the government kramer 1962 p 14 the massive contraction of unionism in the private sector and expansion in the public sector in the 1970s and 1980s see exhibit 1 has produced an utterly different situation today in the private sector the proportion of wage and salary workers in unions plummeted to 14 percent in 1986 a level comparable to that in the great depression only a minuscule number of workers joined unions through nlrb elections and national companies openly proclaimed their intent to establish a union free environment by contrast in the public sector over a third of the work force was unionized some 40 percent were covered by collective contracts 1 and 1 estimates of organization in the public sector differ somewhat among sources though all data show greater organization than in the private sector see freeman ichniowski and zax forthcoming for a detailed analysis of the various statistics

computing approximate nash equilibria in general network revenue management games abstract computing optimal capacity allocations in network revenue management is computationally hard the problem of computing exact nash equilibria in non zero sum games is computationally hard too we present a fast heuristic that in case it cannot converge to an exact nash equilibrium computes an approximation to it in general network revenue management problems under competition we also investigate the question whether it is worth taking competition into account when making network capacity allocation decisions computational results show that the payoffs in the approximate equilibria are very close to those in exact ones taking competition into account never leads to a lower revenue than ignoring competition no matter what the competitor does since we apply linear continuous models computation time is very short

futures markets cognitive ability and mispricing in experimental asset markets we study the effect of a futures market in which contracts maturing in the last period of the life of the asset can be traded our experiment has two treatments one in which a spot market operates on its own and a second treatment in which a spot and a futures market are active simultaneously futures markets lower spot prices but increase price volatility the futures markets themselves exhibit considerable overpricing individuals with higher cognitive reflection test crt scores achieve greater earnings and tend to sell in the overpriced futures market while traders with lower crt scores make purchases in the futures market greater average crt score among a group of traders is associated with better price discovery when no futures market is present but there is no such relationship in the presence of a futures market modified measures of crt which take into account different types of incorrect responses are introduced