cooperative and noncooperative r d in duopoly with spillovers contrary to the usual assumption made in most oligopoly models relations among firms are seldom of a wholly cooperative or noncooperative type in many situations they compete in some fields while they cooperate in others an important example is the case of cooperative research efforts bringing fierce competitors together two types of agreement are observed first r d cooperation can take place at the so called precompetitive stage companies share basic information and efforts in the r d stage but remain rivals in the market place 1 a second type of agreement involves an extended collusion between partners creating common policies at the product level the usual justifications of this extension are the difficulties of protecting intellectual property the idea is then to allow partners who have achieved inventions together to also control together the processes and products which embody the results of their collaboration in order to recuperate jointly their r d investments 2 what could be expected from these types of agreement is a reduction in r d expenditures because of less wasteful duplication and a reduction of total production because of more reprinted from the american economic review 78 5 1133 1137 1988 center for operations research econometrics 1348 louvain la neuve belgium we are grateful to jean

comparing alternative models of heterogeneity in consumer choice behavior summary when modeling demand for differentiated products it is vital to adequately capture consumer taste heterogeneity but there is no clearly preferred approach here we compare the performance of six alternative models currently the most popular are mixed logit mixl particularly the version with normal mixing n mixl and latent class lc which assumes discrete consumer types recently several alternative models have been developed the generalized multinomial logit g mnl extends n mixl by allowing for heterogeneity in the logit scale coefficient scale heterogeneity logit s mnl is a special case of g mnl with scale heterogeneity only the mixed mixed logit mm mnl assumes a discrete mixture of normals heterogeneity distribution finally one can modify n mixl by imposing theoretical sign constraints on vertical attributes we call this t mixl we find that none of these models dominates the others but g mnl mm mnl and t mixl typically outperform the popular n mixl and lc models copyright 2012 john wiley sons ltd

program trading and expiration day effects the arbitrage between index futures and the underlying cash index and the cash settlement feature of index futures contracts which requires arbitrageurs to unwind positions in the stock market are thought to be at the heart of the abnormal stock price movements during the triple witching hour the last hour of trading on days on which index futures index options and options on index futures expire simultaneously during 1984 and 1985 volume was substantially higher than normal in the last hour of trading on those quarterly fridays open interest in the expiring futures contracts on the expiration day amounted to about 40 per cent of the average month end open interest the incremental stock market volume however was approximately one third the volume that would be inmplied if the entire expiration day open interest were traded in the stock market analysis of stock market price changes in the last hour of expiration days and the first halfhour of the following day indicates that the volatility of price changes was significantly higher on expiration days with the stock market tending to fall stocks not in the sp index option expirations themselves did not lead to abnormal market movements when the magnitude of price effects was measured by the degree of reversal in prices on the morning after the expiration day the average magnitude of the price effect in the 10 most recent quarterly futures contract expirations examined was about 0 4 per cent of the closing index value at expiration the average expiration day price effect of 0 4 per cent is not large considering that a price impact of approximately 0 25 per cent of the value of the transaction can be expected on the basis of the bid ask spread once this market impact cost is drawn out the average expiration day price impact falls to about 0 15 per cent of the value of the transaction an amount representing the additional cost of liquidity furthermore price impacts in excess of those found on expiration days are frequently encountered in large block transactions where the cost of providing liquidity also increases on expiration days however transactions in many stocks occur simultaneously so the market as a whole is affected

put call parity and expected returns this study examines the hypothesis that in the presence of market frictions relative put and call prices contain information concerning future returns of the underlying asset a measure of relative prices is derived from the put call parity relationship for index options and applied to a three year sample of oex option transactions the results show that the measure of relative index option prices leads the stock market by at least 15 minutes

strategic and operational decisions under sales competition and collection competition for end of use products in remanufacturing abstract providing incentives to customers for recycling their end of use products is a commonly adopted strategy by remanufacturers for achieving economic scale of remanufacturing however the entrance of remanufacturers threaten the sales of new products that are produced by original equipment manufacturers oems thus oems may also take back end of use products by providing incentives to restrict the capacities of remanufacturers consequently oems and remanufacturers compete not only on prices in sales market but also on incentives in recycle market therefore we formulate a closed loop supply chain model consisting of an oem and a remanufacturer to investigate their equilibrium prices and incentives moreover we consider that the remanufacturer can strategically focus the economies of scale on the sales market or on the recycle market we derive the equilibrium decisions and profits under each of the remanufacturer s strategies and identify the characteristics of these equilibrium results we further derive the conditions to determine the firms behaviors toward the competition we also find that the higher competitiveness in the sales market will encourage the remanufacturer to focus the economic scale on the recycle market instead of the sales market which is also beneficial to the oem

option listing and stock returns abstract this article examines the effect of option introductions on the underlying stocks in addition to the price increase and volatility decrease that take place when new options are listed we obtain and explain the following new empirical results i an increase in the value of the market around the listing dates of new options ii an increase in the value of an industry index which excludes the optioned stocks iii the dissipation of the price and volatility effects in recent periods and iv the existence of an announcement effect in one subperiod of our sample and its dissipation in recent periods

determining optimal price and order size for a price setting newsvendor under cycle service level abstract there has been significant interest in the single period newsvendor problem where besides determining the order size the decision maker has to set the selling price the model is applicable when demand for the product is a stochastic function of the selling price although there have been several studies the problem needs exploration given that retailers prefer using service level rather than the shortage cost to model the economic consequence of a stock out we analyze the problem using a chance constrained formulation and provide a procedure for determining the optimal price and order size for a price setting newsvendor

joint inventory allocation and pricing decisions for perishable products abstract we jointly determine the price and the inventory allocation for a perishable product with a predetermined lifetime we assume that the price of the product increases as the time when it perishes approaches as in the airline industry demand for the product is price sensitive to maximize the expected revenue we developed a discrete time dynamic programming model to obtain the optimal prices and the optimal inventory allocations for the product with a two period lifetime we then proposed three heuristics when the lifetime is longer than two periods the computational results showed that the expected revenues from the proposed heuristics were very close to that of the optimal solution we extended these results to i the case where the price for the product consistently decreases and ii the case where the price for the product first increases and later decreases

pricing used products for remanufacturing remanufacturing is one of recovery options for used products as remanufacturing requires a continuous supply of used products the economic incentive is required to attract customers to return their used products called cores and the problem of pricing a core becomes an important issue such a pricing problem is analogous to pricing an option which can be used to sell the remanufactured cores called core products as sales price of core products follows a geometric brownian motion we propose a model here to evaluate the acquisition price of cores this model links core acquisition price with the sale price of core product but assumes other costs such as logistics and remanufacturing to be deterministic we have presented a numerical example to show its applicability since the model proposed here is generic it is believed that the proposed model can be used in setting the core prices in many situations

a price setting newsvendor problem under mean variance criteria the single product single period newsvendor problem with two decision variables namely price and stock quantity is considered the performance measure in addition to the expected revenue includes the variance of the income scaled with a risk parameter we present conditions for the concavity of this risk sensitive performance measure and the uniqueness of the optimal solution for both risk averse and risk seeking cases under the additive demand model and compare the results to others previously published these conditions are introduced in terms of the lost sales rate elasticity furthermore we provide numerical examples that aim to endorse the theoretical results herein explained

dynamic pricing models for used products in remanufacturing with lost sales and uncertain quality in this paper we investigate the remanufacturing problem of pricing single class used products cores in the face of random price dependent returns and random demand specifically we propose a dynamic pricing policy for the cores and then model the problem as a continuous time markov decision process we first design a basic model that does not consider the quality uncertainty of cores and then extend our model to incorporate this factor besides proving optimal policy uniqueness and establishing monotonicity results for the optimal policy we also characterize the impact of system parameters on the optimal policies which can provide simple managerial insights finally we use computational experiments to assess the benefits of dynamic pricing compared to static pricing and identify the impacts of specific parameters on the relative merits of dynamic pricing policy

newsvendor solutions via conditional value at risk minimization abstract in this paper we consider the minimization of the conditional value at risk cvar a most preferable risk measure in financial risk management in the context of the well known single period newsvendor problem which is originally formulated as the maximization of the expected profit or the minimization of the expected cost we show that downside risk measures including the cvar are tractable in the problem due to their convexity and consequently under mild assumptions on the probability distribution of products demand we provide analytical solutions or linear programming lp formulation of the minimization of the cvar measures defined with two different loss functions numerical examples are also exhibited clarifying the difference among the models analyzed in this paper and demonstrating the efficiency of the lp solutions

evaluating remanufacturing industry of china using an improved grey fixed weight clustering method a case of jiangsu province abstract remanufacturing industry can solve the issues of resource depletion and environment deterioration by reducing consumptions of raw materials and minimizing emissions of wastes it has been strongly promoted by chinese government in recent years however its current development situation has been unsatisfactory all the time the aim of this paper is to evaluate development level of remanufacturing industry of china and point out future directions of industrial improvement to achieve the above objective this paper establishes an evaluation index system of remanufacturing industry and puts forward an improved grey fixed weight clustering method which is suitable for assessing remanufacturing industry then taking jiangsu province of china as a practical case this method is used to evaluate its remanufacturing industry and identify rank order of improvement measures for each city research results show that overall development level of remanufacturing industry is still low and development unbalance is remarkable two more important findings are as follows the first is that rank orders of improvement measures for all cities are different from each other and decision maker should adopt differentiated industrial policies and improvement measures the second is that the cities which belong to the 2nd and 3rd grey class should paid more attention to improvement measures for four evaluation sub indices annual sale of remanufacturing industry total assets of remanufacturing enterprise total investment of under construction and total number of research institution and university participated in remanufacturing the major contribution of this study is to offer an effective decision making approach for evaluation of remanufacturing industry it helps in classifying development levels of remanufacturing industry in different cities and providing decision makers with a scientific basis for adopting appropriate industrial policies and improvement measures which will efficiently enhance remanufacturing industry in the future

the eclectic paradigm of international production a restatement and some possible extensions this article reviews some of the criticisms directed towards the eclectic paradigm of international production over the past decade and restates its main tenets the second part of the article considers a number of possible extensions of the paradigm and concludes by asserting that it remains a robust general framework for explaining and analysing not only the economic rationale of economic production but many organisational and impact issues in relation to mne activity as well

the price effect of option introduction this paper examines the price effect of option introduction from 1974 to 1980 the introduction of individual options causes a permanent price increase in the underlying security beginning approximately three days before introduction the price effect appears to be associated with introduction and not announcement throughout the sample period excess returns volatility declines with option introduction systematic risk is unchanged there is a positive relation between the price increase and a measure of activity in the options market copyright 1989 by american finance association

incentive and production decisions for remanufacturing operations we consider a manufacturer producing original products using virgin materials and remanufactured products using returns from the market where the amount of returns depend on the incentive offered by the manufacturer we determine the optimal value of this incentive and the optimal production quantities in a stochastic demand setting with partial substitution we analyze 3 different models in centralized and decentralized settings where the collection process of the returns is managed by a collection agency in the decentralized setting we also analyze contracts to coordinate the decentralized systems and determine the optimal contract parameters finally we present our computational study to observe the effect of different parameters on the system performance

motives and barriers of the remanufacturing industry in china realizing the importance of remanufacturing for sustainable development due to the large scale of the economy and its increasing pressure on the environment the chinese government has been strongl

refund policies for cores with quality variation in oem remanufacturing cores are essential for the remanufacturing business the lack of cores with proper quality is reported as a highly ranked factor that limits both third party and oem original equipment manufactur

stock and option markets the swiss evidence abstract the interactions between the markets for options and underlying shares are examined for switzerland three topics are investigated first the introduction of traded options in the spring of 1988 lead to a permanent and significant increase in the prices of the underlying shares and a reduction in the volatility of returns second price changes on the stock and options markets are positively related during trading on the exchanges the evidence suggests that the stock leads the options market by about ten minutes some feedback is also present third the stochastic characteristics of stock returns are not affected by the expiration of options

the role of technology in market shares dynamics the paper presents the estimation of an empirical model of market share dynamics for five industrialized countries and 18 industries the emphasis is put on the importance of non price factors of competitiveness whereas most traditional explanations rest on the influence of relative prices among the former type of factor the role of variables reflecting technological advantage is privileged in particular the role of innovations has received considerable attention in the literature on international trade as well as the literature on endogenous growth in this spirit the paper introduces patent counts and investment as explanatory variables for the export market share the results show that non price variables have an important impact on the determinations of long run competitiveness

standard deviations implied in option prices as predictors of future stock price variability abstract standard deviations implied in option prices have recently been introduced as being better than average predictors of future stock price variability this article specifically studies the predictive ability of implicit standard deviations taking into account the dividend problem and the problem of optimal weighting schemes of the standard deviations when there are several options on the same stock transaction data information was used to study the importance of non simultaneities in observing stock and option prices

technology sourcing versus technology exploitation an analysis of us foreign direct investment flows the traditional paradigm of foreign direct investment fdi suggests that fdi is undertaken principally to exploit some firm specific advantage in a foreign country which provides a locational advantage to the investor however recent theoretical work suggests a model of fdi in which the motivation is not to exploit existing technological advantages in a foreign country but to access such technology and transfer it from the host economy to the investing multinational corporation via spillover effects this paper tests the technology sourcing versus technology exploiting hypotheses for a panel of sectoral fdi flows between the united states and major oecd nations over a 15 year period the research makes use of patel and vega s research policy 28 145 55 1999 taxonomy of sectors which are likely a priori to exhibit technology sourcing and exploiting behaviour respectively while there is evidence that fdi flows into the united states are attracted to r and d intensive sectors very little support is found for the technology sourcing hypothesis either for inward or outward fdi flows the results suggest that in aggregate firm specific ownership effects remain powerful determinants of fdi flows

relative informational efficiency of cash futures and options markets the case of an emerging market we study the lead lag relationships among the spot futures and options markets on hong kong s hang seng index hsi the young options market experiences thin trading and the option returns lag the cash index returns the more mature futures market experiences active trading yet its lead over the cash index appears to be less than the counterparts in other countries a possible reason is the dominance of a few major stocks in the index and these stocks have symmetric lead lag relations with the futures furthermore the informativeness of the non lasting futures and options quotations seems to depend on the market maturity 2001 elsevier science b v all rights reserved

european market integration through technology driven m as merger and acquisitions m as have been an important tool for reorganizing the european market since the establishment of european economic and monetary union this article suggests that european integration helped and encouraged european firms to source technology across national borders in europe establishing european innovative firms the figures confirm that once barriers impeding the free movement of capital goods and labour had fallen european firms used m as intensively to enter foreign european markets enhancing technology competencies is found to be one of the main motives for cross border acquisitions in the 1990s but is not a factor in domestic acquisitions over the same period

a risk averse competitive newsvendor problem under the cvar criterion abstract we study a risk averse newsvendor problem with quantity competition and price competition under the conditional value at risk cvar criterion we characterize the optimal quantity and pricing decisions under both quantity and price competition for quantity competition we consider two demand splitting rules namely proportional demand allocation and demand reallocation although competition always leads to overstocking interestingly it does not necessarily lead to a profit loss in certain competitive environments such as demand reallocation by avoiding reducing overstocking that results from competition under the risk neutral criterion for price competition we consider both additive and multiplicative demand we find that the order quantity sale price and the expected profit decrease in the degree of risk aversion further both high price sensitivity and competition intensity force decision makers to lower their prices however high price sensitivity always reduces the order quantity while competition can have the opposite effect

the effect of the euro on foreign direct investment abstract in this paper the recent effect of the european monetary union on inward fdi flows is examined using a difference in differences approach the estimated results show that the introduction of the euro raised inward fdi flows by approximately 16 within the euro area by approximately 11 to non members and weakly by around 8 from non member countries into the euro area moreover the geographical effects of the euro are explored the results show partial agglomeration tendencies for the euro area there are also some indications of increased importance of vertical specialization in the sample

on the valuation of american call options on stocks with known dividends both the roll and the geske equations for the valuation of the american call option on a stock with known dividends are incorrectly specified this note presents the corrected valuation formula explains the misspecifications and provides a numerical example

a note on probability distributions with increasing generalized failure rates distributions with an increasing generalized failure rate igfr have useful applications in pricing and supply chain contracting problems we provide alternative characterizations of the igfr property that lead to simplify verifying whether the igfr condition holds we also relate the limit of the generalized failure rate and the moments of a distribution

a risk tolerance analysis for a joint price differentiation and inventory decisions problem with demand leakage effect abstract price differentiation is a commonly used practice in revenue management rm to improve a firm s profitability however most studies in the literature have considered a risk neutral firm to demonstrate the benefits of price differentiation the main contribution of this paper is in considering several important objectives while determining the optimal product prices and order production quantities for a risk adjusted firm with demand leakage effects in the presence of a price dependent stochastic demand the objectives considered include the maximization of a firm s expected profit and maximizing the probability of exceeding the risk adjusted expected revenue closed form expressions for optimal product prices and production quantities are derived for several of these objectives a numerical study is also presented to calibrate the impact of a firm s risk tolerance and other factors such as demand leakage market demand variability on the firm s profitability and its optimal decision

the impact of m a on the r d process an empirical analysis of the role of technological and market relatedness abstract using information on 31 in depth cases of individual m a deals we show that technological and market relatedness between m a partners distinctly affects the inputs outputs performance and organisational structure of the r d process while the findings in the literature on the effect of m a on r d are quite mixed we can sharpen results by analysing data at the level of the r d process this comes at the price of a smaller sample and more qualitative data for which caution in the interpretation is necessary m a between partners with ex ante complementary technologies result in more active r d performers after the m a in sharp contrast when merged entities are technologically substitutive they significantly decrease their r d level after the m a moreover r d efficiency increases more prominently when merged entities are technologically complementary than when they are substitutive these two findings on the r d level and the performance support the scope economy effect of m a on the one hand and reject the scale economy effect of m a on the other next for cases in which partners were active in the same technological fields before the m a the reduction of r d is more prominent while the r d efficiency gain is smaller if merged entities were rivals in the product market prior to their merger than if they were non rival this suggests that rival firms reap little technology gains from mergers

the drivers of foreign direct investment into research and development an empirical investigation this paper examines the determinants of foreign direct investment fdi in research and development laboratories by 32 multinational enterprises in the pharmaceutical and electronics industries the paper applies a dichotomous set of motives for fdi results from an econometric analysis of 136 laboratory investments show that relative market size and relative strength of a country s science base determine whether fdi in research and development is carried out in order to exploit existing firm specific advantages or in order to build up new firm specific advantages this holds true in similar form for japanese european and u s firms and across the two industries

hospital mergers who merges with whom merger pairings are categorized based on the ownership status teaching status hospital size caseload severity and geographical distance of merging hospitals to determine the types of hospitals that tend to merge with each other the results show that mergers between two non teaching nonprofit or for profit hospitals occur more often but that only ownership status not teaching status affects the propensity to merge after controlling for other merger pair characteristics this paper also finds that hospitals are more likely to merge with a partner of similar size and close geographical proximity but not necessarily the closest candidate however ownership status not distance between hospitals is the dominant determinant of merger pairs

intraday price change and trading volume relations in the stock and stock option markets this study investigates intraday relations between price changes and trading volume of options and stocks for a sample of firms whose options traded on the cboe during the first quarter of 1986 after purging the price change series of the effects of bid ask spreads multivariate time series analysis is used to estimate the lead lag relation between the price changes in the option and stock markets the results indicate that price changes in the stock market lead the option market by as much as fifteen minutes the analysis of trading volume indicates that the stock market lead may be even longer the intense trading activity in and in fact the very existence of organized stock option markets attest to the economic benefits that these financial contracts provide reduced transaction costs and increased financial leverage are two reasons why trading in the stock option market may be more attractive than trading in the market for the underlying stock in addition these cheaper and more flexible trading opportunities attract new and differently informed investors to the marketplace the resulting increase in trading activity together with the inextricable arbitrage linkage between stock and option prices imply an increase in market efficiency this study investigates empirically the intraday price change and trading volume relations between stocks and options for a sample of firms whose options were actively traded on the chicago board options exchange during the first quarter of 1986 in particular intraday call option price changes are translated into implied stock price changes using the american call option pricing model these intraday implied stock price changes are then compared with the actual stock price changes to identify which if either market leads the other in perfectly functioning capital markets there should be complete simultaneity between the series that is new information disseminating into the marketplace should be reflected in the prices and the trading activity of both securities simultaneously institutional factors however may make the stock option market more attractive to information traders this may cause price changes and trading activity due to new information to be observed in the option market first followed by price

price changes of related securities the case of call options and stocks this paper tests the hypothesis that option prices contain information not reflected in con temporaneous stock prices an options transactions data base is used for the purpose the evidence suggests that the magnitude of anticipation of stock prices by option prices is insufficient to overcome the bid ask spread for intra day holding periods implications of the profits in the overnight holding periods are discussed

dynamic pricing in the presence of inventory considerations research overview current practices and future directions the benefits of dynamic pricing methods have long been known in industries such as airlines hotels and electric utilities where the capacity is fixed in the short term and perishable in recent years there has been an increasing adoption of dynamic pricing policies in retail and other industries where the sellers have the ability to store inventory three factors contributed to this phenomenon 1 the increased availability of demand data 2 the ease of changing prices due to new technologies and 3 the availability of decision support tools for analyzing demand data and for dynamic pricing this paper constitutes a review of the literature and current practices in dynamic pricing given its applicability in most markets and its increasing adoption in practice our focus is on dynamic intertemporal pricing in the presence of inventory considerations

same as it ever was europe s national borders and the market for corporate control abstract national borders continue to be strong barriers for mergers and acquisitions in europe using regional data we construct a gravity model and find that the restraining impact of national borders decreased by more than 17 percent between 1991 and 2007 however no significant change has occurred since the mid 1990s i e four years before the introduction of the euro in comparison we run a corresponding analysis in the united states using the 10 federal regions as country equivalents the resulting quasi border effect in the united states is weaker than that in the european union yet its decline by 43 percent is much stronger in the same period we conclude that european integration policy has had little effect on fostering m a cross border transactions

influence of dependency between demands and returns in a reverse logistics system we consider two reverse logistics systems where returned products are as good as new for the first system the product return flow is independent of the demand flow we prove that the optimal policy is of base stock type and we establish monotonicity results for the optimal base stock levels with respect to the system parameters arrival rate production rate return rate production cost lost sale cost return cost and holding cost we also provide an efficient algorithm to compute the optimal base stock level for the second system demands and returns are strongly correlated a satisfied demand induces a product return after a stochastic return lead time with a certain probability when the return lead time is null we extend the results obtained for the first system when the return lead time is positive the optimal control problem is more complex and we do not prove that the optimal policy is of base stock type however we provide a framework to analyse base stock policies finally we carry out a numerical study on many scenarios to investigate the impact of ignoring dependency between demands and returns we observe that ignoring this dependency yields to non negligible cost increase