mergers and business model assimilation evidence from low cost airline takeovers this paper examines mergers that lead to an almost immediate replacement of the target firm s business model in favour of that of the acquiring firm we examine the post merger behaviour of the two leading european dedicated low cost airlines easyjet and ryanair each acquiring another low cost airline respectively go fly and buzz we find that both takeovers had an immediate and sustained impact on both the pricing structures and the extent of inter temporal price discrimination used on the acquired routes with early booking fares noticeably reduced and only very late booking fares increased overall the analysis points to a pro competitive effect of both takeovers as a consequence of the introduction of the acquiring firms business models and associated yield management pricing systems

democracy and economic growth a meta analysis despite a sizeable theoretical and empirical literature no firm conclusions have been drawn regarding the impact of political democracy on economic growth this article challenges the consensus of an inconclusive relationship through a quantitative assessment of the democracy growth literature it applies meta regression analysis to the population of 483 estimates derived from 84 studies on democracy and growth using traditional meta analysis estimators the bootstrap and fixed and random effects meta regression models it derives several robust conclusions taking all the available published evidence together it concludes that democracy does not have a direct impact on economic growth however democracy has robust significant and positive indirect effects through higher human capital lower inflation lower political instability and higher levels of economic freedom democracies may also be associated with larger governments and less free international trade there also appear to be country and region specific democracy growth effects overall democracy s net effect on the economy does not seem to be detrimental

strategic pricing with customer rationing the case of primary metals firms in primary metal industries often charge subcompetitive prices and in periods of high demand they may ration their customers a model is developed to ex plain these empirical regularities in the model firms with market power are aware that the price they charge today affects their demand tomorrow in addition the strategic interaction among firms reinforces this intertemporal effect in the equilibrium of the two stage game oligopolists can price below marginal cost and when capacity constraints are introduced the equilibrium can involve rationing model predictions are assessed using market structure and technology data for several primary metal industries

exchange rate target zones a survey of the literature this work selectively reviews the literature on exchange rate target zones and their theoretical and empirical methodologies and examines whether they can be used to clarify to what extent this type of exchange rate regime could contribute to greater exchange rate stability we discuss the main contributions of the first and second generations of exchange rate target zone models in an attempt to reconcile the poor empirical performance of the krugman model with the reality of exchange rate target zone regimes this line of research integrates target zones with alternative underlying economic models such as imperfect credibility intra marginal interventions and sticky price models it was thus possible to understand the correlations observed between the exchange rate its fundamentals determinants and the interest rate differential and to explain the fact that the statistical distribution of the exchange rate is hump shaped rather than u shaped this implies that the initial emphasis of target zone models on nonlinearities honeymoon effect smooth pasting and marginal interventions has vanished exchange rate target zones are better described as similar to managed floating regimes with intra marginal interventions with some marginal interventions when the exchange rate reaches the edges of the floating band

deviations from purchasing power parity in the long run this paper demonstrates that deviations from purchasing power parity reveal a remarkable and possibly startling consistency with martingale behavior during both fixed and flexible rate periods for a wide variety of countries and in both monthly and annual data since this pattern appears to be much more general than one would expect on the basis of models founded on international commodity arbitrage the paper proposes an alternative explanation which instead relies on financial arbitrage in bonds as the underlying mechanism this paper will demonstrate that deviations from purchasing power parity ppp reveal a remarkable and possibly startling consistency with martingale behavior during both fixed and flexible exchange rate periods for a wide variety of countries and in both monthly and annual data this pattern appears to be much more general than one would expect on the basis of models founded on international commodity arbitrage the paper therefore proposes an alternative explanation which does not presuppose free trade in goods but which instead relies on financial arbitrage in bonds as the underlying mechanism the major implication of the theory and the results is that ppp is as likely to be violated in the long as in the short run as an empirical matter deviations from ppp can be observed for most currencies at any instant see kravis et al 21 stockman 37 and genberg 15 among others these deviations are typically both cumulative and persistent the real exchange rate can remain on either side of parity for lengthy but variable time intervals of a year or more as a consequence the current consensus shared

the name your own price channel in the travel industry an analytical exploration name your own price nyop retailers such as priceline offer an alternative distribution channel for service providers in the travel industry such as airlines hotels and car rental companies our research employs an analytical model to identify and understand key trade offs driving the decision by a service provider to employ an nyop channel assuming that such a channel is available this decision requires the existence of forces that counteract the adverse consequences of cannibalization of sales through traditional posted price channels our analysis provides some insight into these forces contracting with the nyop retailer facilitates market segmentation and price discrimination and allows for disposal of excess capacity after meeting business travel demand however the cost of this flexibility is that the service provider can no longer credibly precommit to maintaining high prices when there is unsold capacity also when contracting with an independent retailer the service provider is unable to extract the entire revenue generated from nyop consumers a key insight from our model is that the rationale for contracting with an nyop retailer is driven by the uncertainty in business travel demand not the expectation of excess capacity indeed all else equal the larger the capacity the less likely it is that contracting with an nyop retailer is the right decision on the part of the service provider

on the optimal pricing policy of a monopolist the paper presents a simple explanation of price dispersion by a monopolist assuming only that consumers arrive in a random order and are served on a first come first served basis a firm can sometimes increase its profits by charging two different prices for the same good and rationing sales at the lower price however it is never necessary to charge more than two prices and a single price is sufficient as long as either the marginal revenue curve is everywhere downward sloping or the marginal cost of production is constant

target zones and exchange rate dynamics this paper develops a simple model of exchange rate behavior under a target zone regime it shows that the expectation that monetary policy will be adjusted to limit exchange rate variation affects exchange rate behavior even when the exchange rate lies inside the zone and is thus not being defended actively somewhat surprisingly the analysis of target zones turns out to have a strong formal similarity to problems in option pricing and investment under uncertainty

value of time speeding behavior and gasoline prices abstract value of time vot is a key parameter in economics and policy this paper presents an alternative method to estimate vot by analyzing an hourly dataset on drivers speeding behavior as a function of the gasoline price our identification strategy is novel as it is based on the intensive margin in comparison previous studies reveal vot on the extensive margin but choice alternatives have multiple attributes thereby potentially confounding estimates consistent with the range of the prior literature we find a vot of about 50 of the wage rate and analyze sources of bias from accidents and traffic tickets these bias functions suggest that previous stated preference vot estimates are likely downward whereas previous revealed preference estimates are likely upward biased

the collapse of purchasing power parities during the 1970 s one of the striking facts concerning the relationship beiveen prices and exchange rates during the 1970 s has been the dismal performance of the predictions of the simple versions of the purchasing power parity doctrine ppp that doctrine in its absolute version states that the equilibrium exchange rate between domestic and foreign currencies equals the ratio of domestic to foreign price levels the relative version of the doctrine relates equilibrium changes in exchange rates to changes in the ratio of domestic to foreign prices during the 1970 s short run changes in exchange rates bore little relationship to short run differentials in national inflation rates and frequently divergences from purchasing power parities have been cumulative this paper reviews and analyzes the empirical record of exchange rates and prices during the 1970 s and the analysis is based on the experience of the dollar pound the dollar frecch franc and the dollar dm exchange rates section 2 presents the evidence on ppp during the 1970 s and contrasts it with the evidence from the 1920 s a period during which the doctrine held up reasonably well this analysis is relevant for assessing whether the flexible exchange rate system was successful in providing national economies with an added degree of insulation from foreign shocks and whether it provided policymakers with an added instrument for the conduct of macroeconomic policy the evidence regarding devia tions from purchasing power parities is also relevant for determining whether there is a case for managed float section 3 attempts to explain what went wrong with

diffusion and the international context of democratization democracy does not evolve sui generis the spatial clustering in democ racy and transitions suggests that international factors play a prominent role in forg ing democracies as well as influencing their durability we argue that democracy often comes about as a result of changes in the relative power of important actors and groups as well as their evaluations of particular institutions both of which are often influenced by forces outside the country in question the scope and extent of con nections with other democratic countries in a region can strengthen support for dem ocratic reform and help sustain institutions in transitional democracies results from a transition model demonstrate that international factors can exert a strong influence on the prospects for transitions to democracy and the spatial clustering in democ racy and transitions cannot adequately be explained by the hypothesized domestic social requisites of individual countries

inequality democracy and institutions a critical review of recent research this paper surveys the theoretical and empirical literature on the effect of economic and political inequality on institutions the current understanding suggests that unequal societies develop exploitative and inefficient institutions empirical research which is scant and has mainly concentrated at cross national level supports to some extent the existence of an inverse relationship between inequality and institutions but more analysis is needed future empirical research should undertake country state and micro level analysis which are a necessary complement to aggregate level studies the effect of inequality could also take place indirectly through the influence of inequality on democratization

why small states offer important answers to large questions small states are conspicuously absent from mainstream comparative political science there are a variety of reasons that underpin their marginal position in the established cannon including their tiny populations the fact that they are not considered real states their supposedly insignificant role in international politics and the absence of data in this article we argue that the discipline is much poorer for not seriously utilizing small states as case studies for larger questions to illustrate this we consider what the case study literature on politics in small states can offer to debates about democratization and decentralization and we highlight that the inclusion of small states in various ways augments or challenges the existing literature in these fields on this basis we argue that far from being marginal or insignificant the intellectual payoffs to the discipline of studying small states are potentially enormous mainly because they have been overlooked for so long

price discrimination in free entry markets using a spatial model of monopolistic competition we investigate price discrimination in free entry zero profit markets we show that when brands are heterogeneous competition does not prevent discrimination the power to earn economic profits is not necessary for a firm to maintain discriminatory prices our model treats formally the fact that consumers difer not only in the utility they derive from a good but also in how strongly they prefer one brand over all others in markets where firms are very competitive sorting consumers on the strength on brand preference produces larger price differentials between groups than sorting on the basis of consumers reservation prices for the good when firms sort customers on the basis of strength of brand preference however we find that the output and welfare effects are generally less favorable than when sorting is more closely related to consumers reservation prices

dynamic pricing behavior in perishable goods markets evidence from secondary markets for major league baseball tickets sellers of perishable goods increasingly use dynamic pricing strategies as technology makes it easier to change prices and track inventory this paper tests how accurately theoretical models of dynamic pricing describe sellers behavior in secondary markets for event tickets a classic example of a perishable good it shows that the simplest dynamic pricing models describe very accurately both the pricing problem faced by sellers and how they behave explaining why sellers cut prices dramatically by 40 percent or more as an event approaches the estimates also imply that dynamic pricing is valuable raising the average seller s expected payoff by around 16 percent

democracy economic development and income inequality most cross national tests of inverse association between democracy and inequality have operationalized the concept of democracy by measuring its level at a single point in time more compelling theoretical arguments can be made for causal relationships that operate over time between 1 a country s years of democratic experience and income inequality and 2 income inequality and the stability of democracy continuous and qualitative measures of years of democratic experience are estimated to have a significant negative impact on income inequality independent of economic development and other control variables for a sample of 55 countries a very strong inverse correlation is also observed between income inequality and regime stability for a sample of 33 democracies this association holds independent of economic development which is found to have no direct effect on democratic stability after controlling for income inequality

assessing target zone credibility mean reversion and devaluation expectations in the erm 1979 1992 abstract the paper presents estimates of devaluation expectations for six erm currencies relative to the deutsche mark for the period march 1979 april 1992 both the simplest test and the drift adjustment method are used the simplest test adjusts interest rate differentials for the maximum and minimum expected rate of depreciation within the exchange rate band the drift adjustment method adjusts interest rate differentials by the estimated expected rate of depreciation within the band the latter method gives more precise estimates especially for short horizons and allows statistical inference and hypothesis testing expected rates of devaluation have generally fallen during the period still some devaluation expectations relative to the deutsche mark remain in 1992 except for the belgian luxembourg franc and the netherlands guilder expected rates of devaluation have fluctuated more than interest rate differentials

the shocking origins of political transitions evidence from earthquakes do earthquakes trigger political transitions using a rich panel dataset of 160 countries observed over 1950 2007 we find that earthquake shocks measured in terms of the effect of ground motion amplitude on death toll have two contradicting effects on political change on the one hand earthquakes drive transitions into democracy due to an affective shock which we interpret to be the reaction of citizens by which they hold the incumbent government responsible for earthquake damages on the other hand earthquakes indirectly hasten transitions into a less democratic regime because they increase the income level contemporaneously possibly due to short term emergency response and recovery expenditures and thus raising the opportunity cost of contesting the incumbent government overall we show that while not leading to a full fledged regime transition earthquake shocks open a new democratic window of opportunity but this window is narrowed by improved economic conditions

the evolution of u s airline competition studies by academic economists were a significant force in the movement towards deregulation of the domestic airline industry in the early 1970s levine 1965 jordan 1970 keeler 1972 douglas and miller 1974 during the critical 1977 78 period in which deregulation was imposed first de facto by the civil aeronautics board cab and then de jure by congress the chairman and vice chairman of the cab were economists for the 14 years since deregulation economists have continued intensive study of the industry in part because of the unusual availability of reliable firm and transaction level data and in part because of the rare opportunity to observe an industry as it evolves from strict economic regulation to fairly unimpeded competition and strategic behavior the simplest prediction of economists about airline deregulation and one of the few on which nearly all economists agreed was that deregulation would improve consumer welfare in comparison to continued price and entry regulation fourteen years later nearly all economists still agree on this though the degree of enthusiasm for the deregulation outcome varies considerably there was substantial disagreement among economists about the market structure that would result because studies of scale economies in the airline industry had concluded that none existed beyond the scale of the smaller major airlines of the 1970s caves 1962 eads et al 1969 many economists argued that deregulation would result in more than the 11 major airlines that existed at the time of deregulation others predicted that only a few or possibly only one airline would survive at a large scale two noted university of chicago economists sam peltzman and lester telser made a bet in 1979 on whether

customer return policies for experience goods this paper studies the economic rationale for customer return policies by focusing on the experience goods aspect of many products return policies allow consumers to defer their purchasing decisions until after they gain some experience with goods in so doing they insure consumers against ex post loss which allows a monopoly seller to charge more than otherwise it is shown that the seller adopts the return policy when consumers are highly risk averse or retail costs are high consumers are strictly better off under the return policy but there is too little adoption of the policy in equilibrium copyright 1996 by blackwell publishing ltd

devaluations and depreciation expectations in the ems this paper proposes a method to estimate separately the size of the expected depreciation in an eventual devaluation of the central parity in the erm and the probability assigned by agents to this devaluation occurring in the short run the proposed method complements the information provided by the jumps observed in market exchange rates around realignments with the information contained in interest rate differentials on the future behaviour of exchange rates the separation of probability and size allows a richer analysis of the effects of devaluations on exchange rate credibility in the erm

third degree price discrimination in the presence of congestion externality this paper analyzes third degree price discrimination of a monopoly airline in the presence of congestion externality when all markets are served the model features the business passenger and leisure passenger markets where business passengers exhibit a higher time valuation and a less price elastic demand than leisure passengers our main result is the identification of the time valuation effect of price discrimination which can work in the opposite direction as the well known output effect on welfare this time valuation effect clearly explains why discriminating prices can improve welfare even when this is associated with a reduction in aggregate output

the time variation of risk and return in the foreign exchange and stock markets this paper attempts to determine whether the fluctuations of conditional first and second moments which are observed for many assets are consistent with the sharpelintner mossin capital asset pricing model we test the mean variance model under several different assumptions about the time variation of conditional second moments of returns using weekly data from july 1974 to december 1986 that include returns on a portfolio composed of dollar deutsche mark sterling and swiss franc assets together with the u s stock market the results indicate that estimated conditional variances cannot explain the observed time variation of risk premia rates of return on international financial assets are characterized by statistical properties that are quite common to all financial markets they are highly volatile and largely unpredictable these properties make it very difficult to extract statistically reliable estimates of systematic exchange rate and assetprice movements and are at the root of the generally poor empirical performance of international asset pricing models nevertheless two important results have been uncovered by empirical researchers and can be considered a fair characterization of the data a expected returns on foreign assets vary over time cumby and obstfeld 1981 and the numerous articles that followed recently surveyed by frankel and meese 1987 b the volatility of returns of foreign assets also changes over time cumby and obstfeld 1984 hodrick and srivastava 1984 and hsieh 1988 among others as giovannini and jorion 1987 suggest the

price discrimination through refund contracts in airlines this paper shows how an airline monopoly uses refundable and non refundable tickets to screen consumers who are uncertain about their travel our theoretical model predicts that the difference between these two fares diminishes as individual demand uncertainty is resolved using an original data set from u s airline markets we find strong evidence supporting our model price discrimination opportunities through refund contracts decline as the departure date nears and individuals learn about their demand

the political economy of institutions stability and investment a simultaneous equation approach in an emerging economy the case of south africa abstract the modern theory of investment identifies the importance of uncertainty to investment a number of empirical studies have tested the theory on south african time series employing political instability measures as proxies for uncertainty this paper verifies that political instability measures are required in the formulation of the investment function for south africa it also establishes that there are distinct institutional factors that influence the uncertainty variable such as property rights and crime levels we find that rising income and property rights lower political instability and that rising crime levels are positively related to political instability the inference is that political instability in south africa may not represent uncertainty directly since it is systematically related to a set of determinants instead uncertainty would have to be understood as being related to a broader institutional nexus that in concert may generate uncertainty for investors the paper highlights

dynamic pricing through discounts for optimizing multiple class demand fulfillment in a multiple customer class model of demand fulfillment for a single item we consider the use of dynamic price discounts to encourage backlogging of demand for customer classes denied immediate service customers are assumed to arrive over several stages in a period and customer classes are distinguished by their contractual price and sensitivity to discounts through dynamic programming we determine the optimal discounts to offer assuming a linear model for the sensitivity of customers to such inducements we show that customers are served in class order and allocation of inventory to demand is determined by considering the current number of customers backlogged as well as the current inventory position through comparison to a naive supplier allocating inventory first come first served with no discounting we show that profits are primarily influenced by the allocation of capacity and the use of price discounts primarily benefits the second class customers overall fill rate heuristics for implementation of the solution in real time settings are given

monopoly with incomplete information recent theoretical research on principal agent relationships has emphasized incentive problems that arise when the parties involved are constrained by either asymmetric information or their inability to monitor each other s actions here we concentrate on the former constraint and consider the case of a single principal the monopolist the main contribution is to show that under a separability assumption strong conclusions can be drawn about the nature of optimal incentive schemes although the primary focus is on optimal quantity discounts in a monopolized market the results also shed light on related topics such as optimal income taxation and commodity bundling

a theory of clearance sales clearance sales are widely used by firms as an intertemporal selling policy in particular in markets where firms face demand uncertainty and need to choose capacity in advance clearance sales consist in charging a high price initially but then lowering the price in the sales period high valuation consumers purchase the good at the high initial price so as to avoid rationing at the low price while low valuation consumers wait for the price to drop we develop a simple model of intertemporal monopoly pricing under demand uncertainty and show that clearance sales may be the optimal intertemporal selling policy

airline pricing behavior under limited inter modal competition this paper empirically analyzes airline pricing for short haul flights in contexts with no credible threat of inter modal competition to this end we explore the southern italian market since it is less accessible by other transport modes and thus fares are the direct outcome of air related competition we show in fact that market power matters depending on the level of intra modal competition and that airlines apply differentiated mark ups besides consistent with the implementation of inter temporal price discrimination ipd we find a non monotonic inter temporal profile of fares with a turning point included in the interval of the 43rd to 45th days before departure finally we provide evidence that in more competitive markets airlines are more likely to engage in ipd jel l11 l13 l93

dynamic pricing advance sales and aggregate demand learning in airlines this paper uses a unique u s airlines panel data set to empirically study the dynamic pricing of inventories with uncertain demand over a finite horizon i estimate a dynamic pricing equation and a dynamic demand equation that jointly characterize the adjustment process between prices and sales as the flight date nears i find that the price increases as the inventory decreases and decreases as there is less time to sell consistent with aggregate demand learning and price adjustment demand shocks have a positive and much larger effect on prices than the positive effect of anticipated sales

durable services monopolists do better than durable goods monopolists the authors consider a monopolist who can commit to a price path when selling a good for which individual consumers demand at most one unit only if the monopolist can also commit to destroying unpurchased stock and the timing of stock release can she earn more than a static monopolist this additional commitment power has empirical revelance for a wide range of goods that the authors term durable services the inability to store output facilitates price discrimination by a durable services monopolist by permitting the credible threat of rationing the authors detail sufficient conditions for a durable services monopolist to produce more than a static or durable goods monopolist produces

inequality and democracy why inequality harms consolidation but does not affect democratization under what conditions do democracies emerge and consolidate recent theories suggest that inequality is among the leading determinants of both democratization and consolidation by contrast this article argues that inequality harms consolidation but has no net effect on democratization the author shows that the existing theories that link inequality to democratization suffer from serious limitations 1 they are useful only for understanding transitions from below and thus do not apply to many other transitions that is those from above 2 even for democratization from below their predictions are unlikely to hold since inequality actually has two opposite effects and 3 they ignore collective action problems which reduces their explanatory power however these objections do not affect the relationship between inequality and consolidation in particular while inequality has two opposite effects on the probability of transition to democracy it unambiguously increases the probability of transition away from democracy this article conducts the most comprehensive empirical test to date of the relationship between inequality and democracy it finds no support for the main democratization theories contrary to what they predict estimation suggests neither a monotonic negative nor an inverted u shaped relationship yet inequality increases the probability of backsliding from democracy to dictatorship

competition and price dispersion in the airline markets we use two ticket level data sets on one way domestic flights for the us airlines to examine the potentially nonlinear relationship between price dispersion and three forms of competition inter firm inter flight and frequency competitions the linear relationship is rejected at any conventional significance levels in particular there is an s shaped relationship between market concentration and price dispersion this can be a reason for the mixed results in the literature roughly speaking the inter flight and frequency competitions have opposite effects on price dispersion finally in general the size of aircraft has a positive effect on price however for very large aircraft the relationship becomes negative

economic determinants of democracy the relationship between the level of economic development and the level of democracy found in most quantitative cross national research implies that the largest gains in democracy are experienced by countries at intermediate levels of development during the 1960s and 1970s however middle income countries were more likely to register declines in democracy than increases i explain this anomaly with the hypothesis that income inequality affects democracy and this effect often counteracts the positive influence of economic development because intermediate levels of economic development are associated with the highest levels of income inequality the independent negative effect of income inequality on change in level of democracy explains the declines in democracy in middle income countries cross national data from a sample of 58 countries support the hypothesis of a negative effect of income inequality on change in level of democracy from 1965 to 1980 this effect is robust when noneconomic determinants of democracy are taken into account and when sample size is increased

service cancellation and competitive refund policy although previous research demonstrates the profitability of partial refund policies in a monopoly setting there is a certain lack of ubiquity in practice about these refunds in competitive service markets this raises the question of how a partial refund policy may work and whether it is even sustainable in a competitive environment this study investigates how competition may influence the profitability and the equilibrium choice of refund policies it is shown that partial refunds may endogenously change the nature of strategic interaction between service providers from local monopolies into a competition regime which moderates the gains from exploiting the efficiency enhancing effect of partial refunds a whole range of pure strategy equilibria can be obtained as a result of the interplay between the efficiency improving and the competition intensifying effects when the capacity is small large such that the efficiency improving the competition intensifying effect is dominant both firms in equilibrium follow identical partial zero refund policies moreover interestingly the symmetric firms may end up in an asymmetric equilibrium in which one firm follows a partial refund policy and the other adopts a zero refund policy

efficient and competitive rationing abstract the contracts that interest us here are called priority service contracts the salient feature of such contracts is that they specify each customer s priority in obtaining service that is they specify the tank order in which a customer is served out of the available supply until all customers are served or supply is exhausted such contracts essentially establish queues for customers in section 1 the author provides some background about priority service section 2 formulates a basic model and offer several illustrations also describes two main examples that motivate the theoretical development section 3 derives some key results that show how the prices of priority service contracts are designed to induce customers to self select efficient service orders in section 4 the author discusses various ways that state enterprises can organize markets that implement priority service efficiently in section 5 we study the operation of competitive markets for priority service section 6 concludes with some summary remarks two themes are emphasized one is that a state enterprise can promote substantial efficiency gains by substituting priority service for absent spot markets the other is that oligopolistic firms may have insufficient incentives to offer efficient product diversity consequently allocative efficiency depends on entry of numerous firms even so dispersal of supplies among many firms can prevent productive efficiency when there are advantages from pooling supplies

economic openness democracy and income inequality an empirical analysis scholars have studied effects of economic openness and democracy on national income inequality in two literatures in democracy studies scholars agree democracy reduces inequality but empirical evidence is ambiguous in globalization studies effects of economic openness on inequality are debated but have not been rigorously examined this article is the first systematic statistical study of the effects of both economic openness and democracy on income inequality these effects need to be studied together the authors measure national income inequality from a comprehensive gini coefficient data set economic openness is measured from trade flows foreign direct investment inflows and financial capital inflows the period studied is 1960 to 1996 the unit of analysis is a country decade and the sample includes 69 countries the authors find that democracy and trade reduce income inequality foreign direct investments increase income inequality and financial capital does not affect income inequality policy implications are discussed

the efficiency of advance purchase discounts in the presence of aggregate demand uncertainty abstract the pricing behavior of two airlines is examined one is operated by a welfare maximizing social planner the other by an unregulated monopolist total capacity is fixed and aggregate demand is uncertain it is shown that advance purchase discounts can assist in attaining an efficient allocation of capacity when it is not feasible to operate a spot market on the day of the flight it is further shown that the planner may offer larger or smaller discounts than the monopolist

optimal pricing with speculators and strategic consumers this paper studies a monopolist firm selling a fixed capacity the firm sets a price before demand uncertainty is resolved speculators may enter the market purely with the intention of resale which can be profitable if demand turns out to be high consumers may strategically choose when to purchase and they may also choose to purchase from the firm or from the speculators we characterize equilibrium prices and profits and analyze the long run capacity decisions of the firm there are three major findings first the presence of speculators increases the firm s expected profits even though the resale market competes with the firm second by facilitating resale the firm can mimic dynamic pricing outcomes and enjoy the associated benefits while charging a fixed price third speculative behavior may generate incentives for the seller to artificially restrict supply and thus may lead to lower capacity investments we also explore several model extensions that highlight the robustness of our results

interest rate parity and foreign exchange risk premia in the erm abstract in this paper we evaluate uncovered interest rate parity in the erm by testing market efficiency and zero risk premia in a general asset pricing framework the overidentifying conditions derived from the model are not rejected but we strongly reject risk neutrality nevertheless estimated risk premia between erm currencies are moderate to low therefore due to the diversifiability of foreign exchange risk the standard uip relation between exchange rates and interest rates is a reasonable approximation within the erm

systematic peak load pricing congestion premia and demand diverting empirical evidence abstract this paper finds empirical support to systematic peak load pricing in airlines higher fares in ex ante known congested periods it estimates a congestion premia and supports the main empirical prediction in gale and holmes gale i holmes t 1993 advance purchase discounts and monopoly allocation of capacity american economic review 83 135 146 less discount seats on peak flights

stochastic devaluation risk and the empirical fit of target zone models in the model of this paper an exchange rate fluctuates between given boundaries for random lengths of time and jumps discretely when devaluation occur we provide explicit solutions for the stochastic processes followed by the exchange rate and by the expected rate of depreciation when the likelihood and the size of devaluations vary stochastically over time the model produces realistic patterns of covariation between exchange rates and interest rate differentials and provides interesting interpretations of available empirical evidence we also specify how to infer devaluation risk from target zone data

shortages segmentation and self selection this paper considers the rationality and implications of using shortages as a self selection device shortages lead to uncertain access and enable sellers to offer ensured access either to the good or to a preferred variety of the good at a higher price or as part of a bundle it is shown that such activities allow firms to span nonconcavities in their revenue function firms respond to changes in demand and costs through changes in quantity and or the premium for ensured access but not through changes in the base price

advance purchase discounts and monopoly allocation of capacity optimal pricing by a monopoly airline that faces capacity constraints during the peak demand period is studied the existence of capacity constraints means that in order to expand output the airline must divert demand from the peak period to the off peak period a particular advance purchase discount policy is shown to be the profit maximizing method of selling tickets if the advance purchase requirement were infeasible output and total surplus would both be lower jel l12 substantial discounts for air travel are generally available to travelers who are willing to purchase tickets a week or more in advance of the departure date this paper demonstrates why the imposition of an advance purchase requirement may be a profit maximizing strategy for a monopoly airline facing capacity constraints during times of peak demand 1 the practice of imposing an advance purchase requirement on discount tickets is also placed in a favorable light in terms of its impact on social

the rigidity of prices this paper uses evidence on individual transaction prices to analyze price behavior the evidence shows that for many transactions pricesremain rigid for periods exceeding one year the rigidity of price ispositively correlated with industry concentration for several productsthe correlation of price changes across buyers is low the paper alsoinvestigates the relationship between price rigidity price change andthe length of time a buyer and seller have been doing business together the author interprets the evidence as emphasizing the importance of nonprice rationing and the inadequacy of models in whichprice movements alone clear markets copyright 1986 by american economic association

monopoly price dispersion under demand uncertainty when a monopolist sets its price before its demand is known then it may set more than one price and limit the availability of its output at lower prices this article adds demand uncertainty and price rigidities to the standard model of monopoly pricing when there are two states of demand and the ex post monopoly price is greater when demand is high then the monopolist s optimal ex ante pricing strategy is to set two prices and limit purchases at the lower price

nonlinear pricing strategies and competitive conditions in the airline industry i introduction many industries use nonlinear pricing based on product attributes one industry where this practice is long recognized is domestic airlines while price dispersion in the industry has been widely studied data limitations have prevented analysis investigating the impact of competitive conditions on price dispersion linked to nonlinear pricing as opposed to variation in costs this paper uses a novel data set that allows us to investigate how nonlinear pricing strategies vary with market structure we construct a ticket menu using standard categories of tickets including first class tickets business class tickets fully refundable tickets nonrefundable tickets and nonrefundable restricted tickets these categories exhibit substantially different prices and are available across all types of routes we investigate both how market concentration and the competitive pressures generated by southwest and other low cost carriers impact the relative fares within the ticket menu using traditional measures of concentration including both herfindahl hirschman index hhi and discrete measures used in other studies of airlines competitive duopoly and monopoly we observe only a modest impact of concentration on relative fares the discrete measures appear to be more informative indicating that concentration primarily reduces the relative fares for high end first class tickets on monopoly routes we identify a puzzle regarding the pricing of high end fares under monopoly the evidence does not support a more general relationship between concentration and other fares we find considerably stronger evidence regarding the impact of southwest on the fare structure while previous studies show that southwest s presence reduces mean fares our results provide a much richer picture the results show that southwest s presence reduces low end fares but actual and potential competition from southwest also generally leads to a substantial compression of the entire fare structure competition from other low cost carriers also affects the fare structure but does not lead to a compression of fares our analysis ties into several literatures our work is closely related to the theoretical work on nonlinear pricing and imperfect competition see e g rochet and stole 2002 stole 1995 1 generically however there is no natural empirical implementation of these models for testing more specifically in these models consumers differ in two dimensions brand loyalty and their marginal preference for quality the results of these papers show that the relationship between competition and high versus low prices turns on the correlation between consumers preferences for quality and their brand loyalty unfortunately these models generally predict monotonicity so that prices exhibit either a wider or narrower spread related to competition busse and rysman 2002 our results in contrast show that higher prices are reduced on highly concentrated routes but that intermediate prices are at most modestly affected the results for actual and potential competition from southwest generally support the predictions of rochet and stole 2002 that increased competition will lead to fare compression our study is also related to the empirical work on competition and price dispersion in airline markets there is an extensive body of work regarding the relationship between market concentration and airline price dispersion the empirical evidence on this matter is mixed in a seminal paper borenstein and rose 1994 examine concentration and price dispersion using cross sectional variation in market concentration and dispersion to identify the relationship between the two they show that airlines offer highly dispersed prices the expected absolute difference in fares between two randomly chosen passengers on the same airline and route is 36 of the average price the authors also find that price dispersion decreases with market concentration

national competitive advantage and the roles of economic and political freedom evidence from hong kong the equivocal interrelationships between economic performance and the institu tions of respectively economic and political freedom are examined using data from firms op erating in hong kong an economy where both an erstwhile paramount international business reputation for competitiveness and the institutional basis on which it was predicated have come into question in recent years it is hypothesized that i both economic and political freedom declines will be associated with a proxy for future economic performance competitiveness decline but that ii the correlation of economic freedom declines with competitiveness de cline will be mediated by political freedom declines hierarchical regression analyses tend to support these hypotheses although results vary by firm origin

evidence of directional price discrimination in the u s airline industry abstract this paper explores possible determinants that may affect an airline s decision to charge passengers different roundtrip fares depending on trip origin a case of directional price discrimination such fare differences cannot be the result of differences in cost as the cost of flying a roundtrip passenger does not significantly differ depending on direction it is argued that directional fare differences result from airlines recognizing that passenger price elasticities differ between route endpoints a price discriminating airline will then charge a higher roundtrip fare at the endpoint where the passenger price elasticity of demand is comparatively lower evidence is found suggesting that airlines do use differences in income to price discriminate when setting roundtrip fares fares are found to be 0 18 0 43 higher on average for each 1000 difference in average per capita income between origin and destination metro areas this finding is sensible assuming that higher incomes reduce the price elasticity of demand for air travel with richer passengers being less sensitive to the cost of travel

a reconsideration of the uncovered interest parity relationship abstract this paper argues that the uncovered interest parity uip relationship is distinct from and more important than the unbiasedness of forward exchange rates as predictors of future spot rates the standard finding that the slope estimate b is roughly 3 in regressions of s t on t 1 s t 1 implies rejection of unbiasedness but not necessarily uip the hypothesis that monetary authorities manage interest rates so as to smooth their movements while also resisting changes in exchange rates is attractive conceptually and is capable of explaining not only the b 3 finding but also several other notable features of the data

revenue management without commitment dynamic pricing and periodic flash sales a seller has a fixed number of goods to sell by a deadline at each time he posts a regular price and decides whether to hold a flash sale over time buyers privately enter the market and strategically time their purchases if a buyer does not purchase when she arrives she can pay an attention cost to recheck the regular price afterwards or she can wait for future flash sales where she may obtain a good at a discounted price in the unique markov perfect equilibrium the seller sporadically holds flash sales to lower the stock of goods a flash sale increases the willingness to pay of future buyers but decreases the willingness to pay of buyers who arrive early in the game when it is very likely that a buyer will obtain a good in a flash sale the seller holds a big initial flash sale for all but one unit of the good

revisiting the modernization hypothesis longevity and democracy summary modernization theory claims that changes in economic fundamentals like e g income per capita and education levels affect the political structure of a country in a causal way as an important marker of development life expectancy can also be conjectured to have a direct effect on political structures in this paper we estimate the impact of improvements in life expectancy on democracy for the purpose of identification we use data from the international epidemiological transition to construct an instrument for life expectancy we find a statistically and economically significant positive causal effect of improvements in life expectancy on democracy

dynamic oligopoly pricing evidence from the airline industry we explore how pricing dynamics in the european airline industry vary with the competitive environment our results highlight substantial variations in pricing dynamics that are consistent with a theory of intertemporal price discrimination first the rate at which prices increase towards the scheduled travel date is decreasing in competition supporting the idea that competition restrains the ability of airlines to price discriminate second the sensitivity to competition is substantially increasing in the heterogeneity of the customer base reecting further that restraints on price discrimination are only relevant if there is initial scope for price discrimination these patterns are quantitatively important explaining about 83 percent of the total within ight price dispersion and explaining 17 percent of the observed cross market variation of pricing dynamics

political rights and income inequality a cross national test among contemporary nations the relationship between income equality and national wealth exhibits an inverted u shape low among the richest and poorest nations and high for nations with intermediate wealth to examine the reasons for this relationship i hypothesize that both political democracy and educational enrollment are related in a similar way to income inequality two data sets are used in this analysis modified version of muller s set of 62 nations circa 1965 1975 and hoover s data set multiple regression reveals that measures of political democracy and the educational enrollment levels have an inverted u relationship with income inequality national wealth gnp had no consistent direct effect on income inequality a satisfactory specification of national levels of income inequality must include the polynomial functions of political democracy and education

when choosing makes a good thing better temporal variations in the valuation of hedonic consumption abstract this research investigates how the valuation of delayed consumption of hedonic products such as concerts and chocolate varies with the passage of time between choice and consumption the authors find that when consumers make their own choices they exhibit increases in evaluations of delayed consumption but only if the interval between choice and consumption is relatively short the effect attenuates over longer periods resulting in an inverted u shaped relationship between evaluations and time in contrast when somebody else chooses the same option for the consumer evaluations decrease with the passage of time these effects depend on the extent of intrinsic motivation toward the object of consumption and occur only for consummatory consumption that is of inherent interest moreover anticipatory increases in evaluations before consumption have ironic negative effects on postconsumption evaluations the authors discuss implications and directions for further research

pricing non storable perishable goods by using a purchase restriction with an application to airline fare pricing abstract the aim of this paper is to address the pricing problem of non storable perishable goods or services such as airline seats and hotel rooms by incorporating the use of purchase restrictions such as the advance booking requirement that is commonly used by airlines and hotels we will show that there exists an optimal pricing policy of at most three prices which can be obtained by solving a series of linear programming problems we will demonstrate that when applied to airline fare pricing the monotonicity condition of the model is equivalent to the requirement that business travelers are less price elastic than leisure travelers we will further illustrate the applicability of the model through a numerical example in the context of airline fare pricing by incorporating the impact of various fences

advance selling effects of interdependent consumer valuations and seller s capacity we examine the impact of consumer valuation interdependence and capacity on a firm s optimal selling strategies we consider a seller who can offer a single product to consumers twice in advance and in spot consumers choose whether and when to buy but if they buy in advance they are uncertain about their own valuations whether they buy in advance or in spot consumers valuations are realized in the spot period and they may range from fully independent to perfectly correlated creating markets with different characteristics of aggregate demand for the seller facing these consumers the seller chooses a portion of the total capacity to offer in advance and prices in both periods we describe how the optimal strategy and benefits of advance selling depend on the interdependence of consumer valuation as well as capacity level and other market parameters we find that a change in valuation interdependence can lead to dramatically different policies for the seller for example when individual valuations are highly diverse and the consumer population is large the seller must offer a discount during advance selling but may limit the advance sales on the other hand when valuations are highly correlated the seller can charge a premium price during advance selling for the same valuation interdependence the qualitative nature of the optimal strategy changes with available capacity this paper was accepted by martin lariviere operations management

the foreign exchange risk premium in a target zone with devaluation risk abstract the foreign exchange risk premium in an exchange rate target zone is derived when the exchange rate is heteroskedastic within the band and there is a separate devaluation risk the risk premium is then the sum of two separate risk premia arising from uncertainty about exchange rate movements within the band and from uncertainty about devaluations both real and nominal risk premia are considered real and nominal risk premia from movements within the band are very small real and nominal risk premia from devaluations are larger but still relatively small proportions of the interest rate differential

fractionalization and long run economic growth webs and direction of association between the economic and the social south africa as a time series case study recent cross sectional growth studies have found that ethnolinguistic fractionalization is an important explanatory variable of long run growth performance in the present article we follow the ca