entry cost the tobin tax and noise trading in the foreign exchange market two types of policy have been proposed to eliminate noise trading in the foreign exchange market increasing the entry cost or imposing a tobin tax type of transaction tax in this paper we endogenize entry decisions of both informed traders and noise traders and show that these policies may be ineffective in reducing exchange rate volatility this is because these policies will discourage the entry of all traders so they may not change the relative ratio of traders or they may affect informed traders disproportionately more which increases the relative ratio of noise traders and exchange rate volatility deux types de politiques ont ete proposees pour eliminer le bruit transactionnel qui empeche le prix d etre parfaitement revelateur dans le marche des changes accroitre le cout a l entree ou imposer une taxe a la tobin sur les transactions dans ce texte on endogenise les decisions a l entree a la fois des operateurs informes et des autres qui n ont pas d information significative et on montre que ces politiques sont ineffectives pour reduire la volatilite du taux de change c est que ces politiques decouragent l entree de tous les operateurs en consequence elles peuvent ne pas changer le ratio des deux types d operateurs ou peuvent meme affecter les operateurs informes davantage ce qui accroit l importance relative des moins informes et donc la volatilite du taux de change

the price effects of liquidity shocks a study of the sec s tick size experiment abstract do stock prices of publicly listed companies respond to changes in transaction costs using the sec s pilot program that increased the tick size for approximately 1 200 randomly chosen stocks we find a stock price decrease between 1 75 and 3 2 for small spread stocks affected by the larger tick size relative to a control group we find that the increase in the present value of transaction costs accounts for a small percentage of the price decrease we study channels of price variation due to changes in expected returns information risk investor horizon and liquidity risk the evidence suggests that trading frictions affect the cost of capital

an exchange market pressure measure for cross country analysis abstract emp measures in the existing literature are oriented towards applications in crisis dating and prediction we propose a modified emp measure where cross country comparisons are possible this is the sum of the observed change in the exchange rate with an estimated counterfactual of the magnitude of the change in the exchange rate associated with the observed currency intervention we construct a multi country dataset for emp in each month this opens up many new research possibilities

foreign exchange market intervention and expectations the yen dollar exchange rate abstract using press reports and official statistics on central bank intervention in conjunction with options market data we find that central bank intervention had no statistically significant systematic impact on the mean or higher moments of the exchange rate during 1993 2000 we also find that japanese authorities appeared to intervene mainly in response to deviations of the exchange rate from some implicit target levels and to a rise in market uncertainty u s monetary authorities intervened only in cooperation with the japanese authorities

the role of transaction costs for financial volatility evidence from the paris bourse this paper analyzes the causal linkage between transaction costs and financial volatility under two methodological improvements over the existing literature first we use panel data in which exogenous transaction cost differences in the french stock market are induced by price level dependent minimum price variation rules tick size rules unlike in previous studies based on one time regulatory tick size changes like the u s decimalization we can separately identify and control for marketwide volatility changes second we avoid the pitfalls of biased volatility measurement across regimes by using the range as a tick size robust volatility metric panel regressions controlling for marketwide volatility effects show at high levels of statistical significance that the hourly range volatility of individual stocks increases by more than 30 for a 20 exogenous increase in transaction costs due to tick size variations in the french trading system in the light of this evidence higher transaction costs in general and security transaction taxes in particular should be considered as volatility increasing jel f3 g1 g14

capacity choice and the theory of the mine when extraction from mineral deposits is constrained byfixed capacity an r per cent rule holds this deposit specific rule however is more partial than hotelling s rule in that it is followed byprice takers and does not require price to adjust to produce equilibrium toobtain the resource rent to which the rule applies the shadow value ofcapacity must be subtracted from the usual net price i e price lessshort run marginal cost but the shadow value of capacity cannot becalculated from common depreciation formulas an alternative method ofcalculating the shadow values is derived the shadow value of reserves maybe increasing in the level of initial reserves if there are increasingreturns to installing capacity the value of the resource is not equal tothe discounted resource rent

minimum price variations discrete bid ask spreads and quotation sizes exchange minimum price variation regulations create discrete bid ask spreads if the minimum quotable spread exceeds the spread that otherwise would be quoted spreads will be wide and the number of shares offered at the bid and ask may be large a cross sectional discrete spread model is estimated by using intraday stock quotation spread frequencies the results are used to project 1 16 spread usage frequencies given a 1 16 tick projected changes in quotation sizes and in trade volumes are obtained from regression models for stocks priced under 10 the models predict spreads would decrease 38 percent quotation sizes would decrease 16 percent and daily volume would increase 34 percent article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

opec market failure or power failure abstract the actions of opec and saudi arabia are discussed in terms of their objectives and their technical and social constraints it is concluded 1 that opec does not act as a cartel and 2 that hotelling s rule is not an important feature of pricing or production opec s more specifically saudi arabia s ideal policy is to keep price moderate to try to assure a market for their high reserves over the long run such an action would require heavy investments in capacity including in excess capacity for times of interruption of supply from other countries as in the 1990s and for times of high demand as in the 2000s the action may be inconsistent with other objectives and in any case may be too difficult to achieve

valuing petroleum reserves using current net price i introduction the hotelling valuation principle hvp states that when valuing any depleting mineral reserve one can simply multiply the current net price price less unit extraction cost associated with those reserves by the quantity of reserves 1 v sub s lambda sub s r sub s where lambda sub s p sub s c sub s is the current time s net price and r sub s is current recoverable reserves in place miller and upton 1985a the derivation combines discounted cash flow dcf analysis with hotelling s 1931 result that in equilibrium the net price of a non renewable resource must rise at the rate of interest with net cash flows being inflated and discounted at the same rate the result is intuitive and its simplicity has drawn the attention of mineral appraisers and national income accounting agencies 1 the u s department of commerce for instance uses equation 1 as one method of valuing the stock and depletion of the nation s mineral assets carson 1994 miller and upton 1985a 24 empirically test the principle against oil and gas reserve values imputed from firm balance sheets and conclude that it provides not only reasonably good descriptions of the structure of actual market values of a sample of u s petroleum producing companies but substantially better descriptions than the publicly available alternative appraisals based on much the same underlying raw data they claim that the abstractions of the hvp constant marginal cost perfect information and perfect competition do not appear to invalidate the empirical performance and so miller and upton propose that equation 1 remains theoretically intact even when these abstractions are relaxed further investigation however has found the hvp to severely overvalue oil and gas reserves for example watkins 1992 finds that the formula overvalues oil and gas reserve transactions by an average of 85 2 indeed in miller and upton s original work the imputed reserve values are less than the hvp values in 81 of 94 valuations in the first data set and in 95 of 98 in a second data set in many cases by 50 or more 3 several empirical studies have found that the coefficient on lambda sub s r sub s in equation 1 is in the order of one half this tendency of the hvp to overstate the value of petroleum reserves is recognized by users of the principle such as bartelmus et al 1994 who nevertheless continue to rely on it for reserve valuation several economists have attempted to explain the overvaluation magliolo 1986 investigates data sources and tax effects cairns and davis 1998 and davis and moore 1998 show that for the case of hard rock mining capacity constraints on production produce a coefficient on lambda sub s r sub s that is less than one others have instead rejected not only the hvp as a valuation tool but also the entire hotelling theory underlying the principle for example adelman 1993 and watkins 1992 argue that i for practical purposes there is no binding resource stock constraint for oil and gas as explicitly assumed by hotelling 1931 and ii oil and gas net price data do not reveal hotelling s r rule mcdonald 1994 adds that regulation of well spacing and extraction rates is another important facet of oil production that is not modeled by hotelling and that this could be a cause of the empirical failure of the principle still others propose that oil reserves cannot be valued accurately using a discounted cash flow framework rather the analyst must also incorporate an option value which arises whenever producers can adjust production through time in response to realizations of stochastic events such as price fluctuations brennan and schwartz 1985 paddock siegel and smith 1988 and smit 1997 this position is valid but it does not explain the empirical failures of equation 1

high frequency analysis of foreign exchange interventions what do we learn abstract the high frequency analysis of foreign exchange dynamics is helpful in order to better identify the impact of central bank interventions evidence robustly shows that interventions do indeed move the exchange rate level in the desired direction interventions increase volatility in the short run as they are regarded as information but they can reduce volatility overall ways of transmission may reach beyond the signalling channel and also include the portfolio balance and a damping channel finally interventions are more successful if they obey certain conditions such as being coordinated among central banks and going with the market and fundamentals

can information heterogeneity explain the exchange rate determination puzzle empirical evidence shows that most exchange rate volatility at short to medium horizons is related to order flow and not to macroeconomic variables we introduce symmetric information dispersion about future macroeconomic fundamentals in a dynamic rational expectations model in order to explain these stylized facts consistent with the evidence the model implies that a observed fundamentals account for little of exchange rate volatility in the short to medium run b over long horizons the exchange rate is closely related to observed fundamentals c exchange rate changes are a weak predictor of future fundamentals and d the exchange rate is closely related to order flow

imperfect competition in financial markets an empirical study of island and nasdaq the competition between island and nasdaq at the beginning of the century offers a natural laboratory to study competition between and within trading platforms and its consequences for liquidity supply our empirical strategy takes advantage of the difference between the pricing grids used on island and nasdaq as well as of the decline in the nasdaq tick using the finer grid prevailing on their market island limit order traders undercut nasdaq quotes much more than they undercut one another the drop in the nasdaq tick size triggered a drop in island spreads despite the island tick already being very thin before nasdaq decimalization we also estimate a structural model of liquidity supply and find that island limit order traders earned rents before nasdaq decimalization our results suggest that perfect competition cannot be taken for granted even on transparent open limit order books with a very thin pricing grid

exit as governance an empirical analysis recent theory posits a new governance channel available to blockholders threat of exit threat of exit as opposed to actual exit is difficult to measure directly however a crucial property is that it is weaker when stock liquidity is lower and vice versa we use natural experiments of financial crises and decimalization as exogenous shocks to stock liquidity firms with larger blockholdings experience greater declines increases in firm value during the crises decimalization particularly if the manager s wealth is sensitive to the stock price and thus to exit threats additional tests suggest exit threats are distinct from blockholder intervention

why trading speed matters a tale of queue rationing under price controls we show that queue rationing under price controls is one driver of high frequency trading uniform tick sizes constrain price competition and create rents for liquidity provision particularly for securities with lower prices the time priority rule allocates rents to high frequency traders hfts because of their speed advantage an increase in relative tick size defined as uniform tick sizes divided by security prices increases the fraction of liquidity provided by hfts but harms liquidity we find that the message to trade ratio is a poor cross sectional proxy for hfts liquidity provision stocks with more liquidity provided by hfts have lower message to trade ratios received september 15 2015 editorial decision october 7 2017 by editor robin greenwood

the temporal pattern of trading rule returns and exchange rate intervention intervention does not generate technical trading profits abstract this paper characterizes the temporal pattern of trading rule returns and official intervention for australian german swiss and u s data to investigate whether intervention generates technical trading rule profits the data reject the hypothesis that intervention generates inefficiencies from which technical rules profit in particular high frequency data show that abnormally high trading rule returns precede german swiss and u s intervention australian intervention precedes high trading rule returns but trading intervention patterns make it implausible that intervention actually generates those returns rather intervention responds to exchange rate trends from which trading rules have recently profited

the microstructure of exchange rate management fx intervention and capital controls in brazil this article uses a microstructure approach to analyse the effectiveness of capital controls introduced in brazil to counter an appreciation of the real based on a rich data set from the brazilian foreign exchange market we estimate a reduced form var to characterize the interaction of the central bank financial and commercial customers in times of regulatory policy measures we find that capital controls change market participants behaviour and that central bank interventions elicit a significant response in financial order flow referring to the source of order flow we find no direct price impact by financial flows and thus no evidence that the appreciation of the real is driven by financial customers activity instead commercial customers seem to be a primary driver of the real within our model

the green paradox of the economics of exhaustible resources abstract the green paradox states that an increasing tax on emissions of carbon dioxide consonant with the expected increase in their marginal damages may induce oil producers to shift their production toward the present and thereby to exacerbate the problem of climatic change the model is based on hotelling models of resource use that do not take the natural and technical features of oil production into account natural features include the decline of production through time according to a decline curve technical features include the requirement to sink investment in productive capacity a model of a profit maximizing firm indicates that if these features are taken into account the prediction of the green paradox is unlikely

effective sterilized foreign exchange intervention evidence from a rule based policy abstract this paper investigates the effectiveness of sterilized foreign exchange interventions by exploiting a discontinuous policy rule used by the central bank of colombia we use a unique data set that comprises tick by tick intervention and order book data daily capital in and outflows and balance sheet information of financial institutions we apply regression discontinuity methods to identify the surprise component of rule based interventions and use this variation to measure how they affect exchange rates and capital flows our findings indicate that interventions had significant effects on the exchange rate albeit short lived 2 3 weeks moreover capital controls amplify the effect of intervention though some effect remains even in the presence of free capital flows a methodological contribution of the paper is to extend regression discontinuity designs to a time series environment and to show how these techniques can be used to identify and estimate local non linear impulse response functions a clearly defined policy rule and high frequency data are crucial in exploiting local variation around the policy cutoff

real time effects of central bank interventions in the euro market abstract this paper investigates the real time effects of sterilized foreign exchange intervention using official intraday intervention data provided by the danish central bank our analysis employs a two step weighted least squares estimation procedure we control for macro surprises address the issue of endogeneity and carry out an array of robustness tests only when the direction of intervention is consistent with the monetary policy stance do we find that intervention exerts a significant influence on exchange rate returns

deutsche mark dollar volatility intraday activity patterns macroeconomic announcements and longer run dependencies this paper provides a detailed characterization of the volatility in the deutsche mark dollar foreign exchange market using an annual sample of five minute returns the approach captures the intraday activity patterns the macroeconomic announcements and the volatility persistence arch known from daily returns the different features are separately quantified and shown to account for a substantial fraction of return variability both at the intraday and daily level the implications of the results for the interpretation of the fundamental driving forces behind the volatility process is also discussed the efficient market hypothesis contends that financial asset prices provide rational assessments of fundamental values and future payoffs by implication price changes should reflect the arrival and processing of all relevant new information however the proportion of return variability that can be ascribed to public news announcements is low for example cutler poterba and summers 1989 find that even the largest daily price changes in the stock market generally cannot be associated with any significant economic news 1 moreover proxies for the flow of public information e g the number of news items released by reuter s news service berry and hiowe 1994 or dow jones company mitchell and mulherin 1994 explain little of the overall variation thus if private information is ruled out proponents of rational price formation have to assert the existence of important news items

informational integration and fx trading abstract this paper addresses international financial integration in a new way we focus on informational integration specifically the importance of information conveyed by order flow in major currencies for pricing minor currencies we develop a multi currency model of portfolio allocation in the presence of dispersed information we then test the model s implications using four months of concurrent transaction data on nine currencies the model explains 45 to 78 of daily returns in all nine currencies moreover its prediction that order flow in individual markets should be relevant for determining prices in other markets is borne out

algorithmic quoting trading and market quality in agricultural commodity futures markets this paper investigates the effect of algorithmic trading activity as measured by quoting on the corn soybean and live cattle commodity futures market quality using the cme s limit order book

intraday effects of foreign exchange intervention by the bank of japan abstract we examine the effects of intervention by the bank of japan using intraday data from oct 1 1992 to sept 30 1993 news related to the bank of japan s intervention in the jpy market was retrieved from reuters headlines we find that jpy volatility varies significantly differently across periods from 1 h before to 1 h after reuters intervention reports results from arch models show that intervention by the bank of japan has a positive and significant impact on jpy volatility particularly at high frequencies 5 and 10 min intervals we also find that our intervention proxy has the largest effect upon high frequency volatility 30 to 45 min prior to reuters reports

market making costs in treasury bills a benchmark for the cost of liquidity abstract we focus on market making costs by examining the daily bid ask spreads for off the run one month treasury bills around two liquidity changing events event one salomon brothers supply shock results in a roughly 2 5 basis point increase in the spread because of an increase in ask prices and event two the long term capital management demand shock results in a doubling of the spread because of a decrease in bid prices our results provide a benchmark for researchers examining bid ask spreads of securities that include a liquidity premium a risk premium and an asymmetric information premium

is foreign exchange intervention effective some microanalytical evidence from the czech republic abstract i estimate a two equation system on the czech koruna euro exchange rate and order flow at hourly frequency with transactions data from the reuters spot matching market in the second half of 2002 during which the czech national bank intervened to stem the appreciation of the koruna i find a significant impact of order flow on the exchange rate equal to 7 6 basis points per 10 million of which 80 persists throughout the day the news of intervention increases the price impact of order flow by 3 9 basis points per 10 million the order flow equation yields inconclusive results

human vs high frequency traders penny jumping and tick size abstract this paper examines changes in market quality resulting from the smaller tick size of the interbank foreign exchange market coupled with the lower tick size the special composition of traders and their order placement strategies created a suitable environment for high frequency traders hft s to implement sub penny jumping strategy to front run human traders we show that the spread declined following the introduction of decimal pip pricing however benefits of spread reduction were mostly absorbed by the hft s market depths were also significantly reduced with the occupation of the top of the order book by hft s this new environment changed the market maker market taker composition between different traders and altered price impacts of the order flows

eighths sixteenths and market depth changes in tick size and liquidity provision on the nyse using limit order data provided by the nyse we investigate the impact of reducing the minimum tick size on the liquidity of the market while both spreads and depths quoted and on the limit order book declined after the nyse s change from eighths to sixteenths depth declined throughout the entire limit order book as well the combined e ect of smaller spreads and reduced cumulative limit order book depth has made liquidity demanders trading small orders better o however traders who submitted

the advantage to hiding one s hand speculation and central bank intervention in the foreign exchange market abstract we analyze an asymmetric information model of sterilized intervention in the foreign exchange market we characterize an equilibrium in which a central bank with inside information about its exchange rate target trades with risk averse speculators who have private information about future spot rates the model identifies circumstances in which perverse responses to intervention will be observed i e the domestic currency depreciates when the central bank purchases it and it provides conditions under which the exchange rate will be highly sensitive to intervention the model also provides an explanation for two forms of policy secrecy i secrecy about the scale of an intervention operation is always desirable ii secrecy about the target is sometimes desirable

regulatory and legal pressures and the costs of nasdaq trading the nasdaq market came under intense pressure from regulators and class action lawsuits following allegations of tacit collusion by christie and schultz 1994 this article examines the changes in transaction costs on the nasdaq from january 1993 through june 1996 using 16 million trades in 30 stocks effective spreads cannot be matched however the autocovariance spread estimator of roll 1984 works well with intraday data over this period this spread estimator reveals that trading costs declined significantly for 29 of the 30 stocks over 1993 96 article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

adapting to radical change the benefits of short horizon investors we show that following shocks that change an industry s competitive environment firms with more short term institutional investors experience smaller drops in sales and investment and have better

information sharing and central bank intervention in the foreign exchange market abstract this paper develops a model of information sharing among heterogeneously informed agents and it uses the model to examine a rationale for intervention in the foreign exchange market the model shows that in a partially revealing rational expectations equilibrium some agents can gain by sharing among themselves private information about transitory exchange rate disturbances in this setting a central bank can affect the exchange rate by aggregating and disseminating agents information the paper also illustrates the usefulness of intervention as a way to transmit that information

once in a generation yen volatility in 1998 fundamentals intervention and order flow abstract the dramatic yen dollar volatility of 1998 has been popularly ascribed to order flow driven by changing tastes for risk and hedge fund herding on unwinding yen carry trade positions rather than fundamentals high frequency evidence of shifting fundamentals is provided by a comprehensive list of macroeconomic announcements news is found to have significant effects on volatility but order flow may play a more important role since portfolio shifts are revealed to the market through trading the results are consistent with order flow playing a significant role in the revelation of private information and associated exchange rate shifts

good timing the economics of optimal stopping abstract this paper presents an economic interpretation of the optimal stopping of perpetual project opportunities under both certainty and uncertainty prior to stopping the expected rate of return from delay exceeds the rate of interest the expected rate of return from delay is the sum of the expected rate of change in project value and the expected rate of change in the option premium associated with waiting at stopping the expected rate of return from delay has fallen to the rate of interest viewing stopping in this way unifies the theoretical and practical insights of the theory of stopping under certainty and uncertainty

foreign exchange intervention in emerging markets a survey of empirical studies nowadays foreign exchange interventions occur in emerging market economies whereas empirical studies on interventions mainly refer to advanced economies however interventions in emerging markets are different from those in advanced economies they occur regularly and central banks have considerable leverage derived from relatively high reserves some non sterilisation the central bank s information advantage and capital controls consequently these interventions often successfully impact the level and volatility of exchange rates nevertheless more research on interventions in emerging markets is needed analysing the influence of heterogeneous institutional circumstances examining the role of central bank communication and using high frequency data

trade execution costs and market quality after decimalization this study assesses trade execution costs and market quality for nyse and nasdaq stocks before and after the 2001 change to decimal pricing several theoretical predictions are confirmed quoted bid ask spreads declined substantially on each market with the largest declines for heavily traded stocks the percentage of shares receiving price improvement increased on the nyse but not on nasdaq however those trades completed at prices within or outside the quotes were improved or disimproved by smaller amounts after decimalization and trades completed outside the quotes saw the largest reductions in trade execution costs as a class effective bid ask spreads as a percentage of share price arguably the most relevant measure of execution costs for smaller trades averaged 0 33 on a volume weighted basis after decimalization for both nyse and nasdaq stocks there is no evidence of systematic intraday reversals of quote changes on either market as would be expected if decimalization had damaged liquidity supply

time varying liquidity in foreign exchange abstract this paper addresses whether currency trades have greater price impact when public information is flowing rapidly we develop an optimizing model to account for why public news should increase the price impact of trades using transaction data made available by electronic trading we test whether trades following macroeconomic news have higher price impact they do price impact per dollar traded is about 10 percent higher per news announcement in the previous hour after controlling for public information flow we do not find evidence that liquidity depends on trading volume and return volatility the findings provide policy makers with guidance for the timing and magnitude intervention

tick size price grids and market performance stable matches as a model of market dynamics and equilibrium abstract the tick size in a financial market is the minimum allowable difference between ask and bid prices by the rules of each exchange no transactions can occur within the tick interval the impact of tick size is an ongoing controversy which we study by experimental methods whose simplicity helps distinguish among competing models of complex real world securities markets we observe patterns predicted by a matching cooperative game model because a price grid interferes with a competitive equilibrium and restrictions on order flow interfere with information aggregation the matching model provides predictions when the competitive model cannot although their predictions are the same when a competitive equilibrium does exist our experiments examine stable allocations average prices timing of order flow information flow and price dynamics larger tick size invites more speculation which in turn increases liquidity however increased speculation leads to inefficient trades that otherwise would not have occurred

penny pricing and the components of spread and depth changes abstract recent studies show that decimal pricing led to significant reductions in the spread and depth on the nyse in this paper we examine how the observed changes in the spread and depth can be attributed to different factors we show that stocks with higher proportions of one tick spreads and odd sixteenth quotes and more frequent trading before decimalization experienced larger declines in the spread and depth afterwards we interpret this result as evidence of reduced binding constraints and increased price competition under decimal pricing we also find that decimal pricing led to nontrivial changes in select stock attributes and that these changes exerted an additional impact on spreads and depths our results suggest that sub penny pricing may further reduce the spreads of high volume low risk or low price stocks

central bank forex internvention assessed in continous time abstract this paper looks at some of the principal characteristics of foreign exchange intervention by central banks the approach is novel in that virtually continous time data have been exploited using reuters screen information jel f31

making cents of tick sizes the effect of the 2016 u s sec tick size pilot on limit order book liquidity abstract we use the 2016 u s sec tick size pilot to examine the effects of an increase in the minimum price variation on limit order book liquidity in nasdaq listed stocks on the nasdaq exchange for treatment stocks with an average pre pilot quoted spread less than 0 05 the tick size increase is binding and leads to a significant decrease in liquidity in the limit order book specifically the implied cost to trade at and away from the best bid and offer prices increases and the limit order book becomes less resilient the amount of time required for a deviation in liquidity to return to its long run mean for treatment stocks with an average pre pilot quoted spread of at least 0 05 the tick size increase is non binding and leads to either a slight decrease or no change in limit order book liquidity

make take structure and market quality evidence from the u s options markets we examine the make take structure which compensates liquidity suppliers and charges liquidity demanders in the options markets where it competes with a traditional structure that uses payments for order flow using the introduction of the make take structure as an event we find that execution costs including fees for liquidity demanders decline after the event for the affected options that the make take structure encourages market makers to improve quoted prices and that brokers change their routing behavior to include fees in the routing decision the decline in execution costs is consistent with the benefits of the increased quote competition from the make take structure prevailing over the fees the structure charges to liquidity demanders this paper was accepted by wei jiang finance

the market microstructure of central bank intervention abstract how quickly do central bank intervention operations impact the foreign exchange market and do intra daily market conditions influence the effectiveness of central bank interventions this paper uses high frequency intra daily data to examine the relationship between the efficacy of intervention operations and the state of the market at the moment that the operation is made public the results indicate that some traders typically know that the fed is intervening at least 1 h prior to the public release of the information in newswire reports also the evidence suggests that the timing of intervention operations matters interventions that occur during heavy trading volume that are closely timed to scheduled macro announcements and that are coordinated with another central bank are the most likely to have large effects

stock market liquidity and firm value this paper investigates the relation between stock liquidity and firm performance the study shows that firms with liquid stocks have better performance as measured by the firm market to book ratio this result is robust to the inclusion of industry or firm fixed effects a control for idiosyncratic risk a control for endogenous liquidity using two stage least squares and the use of alternative measures of liquidity to identify the causal effect of liquidity on firm performance we study an exogenous shock to liquidity the decimalization of stock trading and show that the increase in liquidity around decimalization improves firm performance the causes of liquidity s beneficial effect are investigated liquidity increases the information content of market prices and of performance sensitive managerial compensation finally momentum trading analyst coverage investor overreaction and the effect of liquidity on discount rates or expected returns do not appear to drive the results

reassessing the impact of option introductions on market quality a less restrictive test for event date effects prior research concludes that option introductions improve the average liquidity of the underlying stocks we develop an improved generalizable test to assess whether market quality changes occur on or near an event date applying this method to option listing events we conclude that options do not systematically improve the market quality of the underlying security rather the market quality of the underlying security improves before the listing decision hazard model tests indicate that improving liquidity is a selection criterion in the option listing decision moreover these tests suggest that the size of a stock s bid ask spread is the single most important option listing determinant this study reexamines the impact of equity option introductions on stock market liquidity previous studies find an improvement in market quality charac teristics after option introductions and conclude that options improve the quality of the underlying market 1 in this paper we make several new contributions first we present and adopt a more flexible empirical tool for identifying regime shifts when event selection may be endogenously determined second using this method we reverse two major findings of the existing literature that option in troductions reduce spreads and increase volume finally we find that the bid ask spread is an important and perhaps the most important determinant of the option

petroleum taxes and optimal resource recovery abstract the objective of this paper is to quantify the incentive effects of petroleum taxes this enables us to estimate individual petroleum reservoirs supply functions before and after tax of central importance are the marginal reserves within the petroleum reservoir itself the recovery factor of oil and gas reservoirs is influenced by economic considerations both the rate of return requirement and petroleum taxes play crucial roles the conclusion is that the distorting effects observed in many petroleum taxation systems have serious resource recovery consequences and reduce the recovery factor for individual oil and gas reservoirs

optimal exploration for and exploitation of heterogeneous mineral deposits abstract we model exploration for and production from a multiple deposit nonrenewable resource exploration is viewed as a bayesian process involving learning about undiscovered reserves and is undertaken both to improve the quality of and to replenish known reserves known reserves are not physically defined but depend on the realizations of discrete episodes of exploration elsewhere and on decisions at each instant about the margin between ore to be mined and low grade material to be rejected the appropriate measure of resource scarcity the sustainable level of the contribution of the resource and the treatment of depletion in the national accounts are considered

trading activity dealer concentration and foreign exchange market quality abstract we study the relation between foreign exchange market quality and both trading activity and dealer concentration by considering two currency pairs with significant differences along both dimensions the euro us dollar and canadian dollar us dollar a variance ratio test reveals over reaction in currency prices but that this is smallest when trading activity is high and dealer concentration at its peak a garch model shows that over reaction declines as trading activity and dealer concentration increase with the results being stronger for the euro our results confirm that trading activity is an important determinant of market quality but also point to a significant role for dealer concentration

exchange rate effects of central bank interventions an analysis of transaction prices the impact of sterilised interventions by the swiss national bank on the swiss franc u s dollar exchange rate is examined for the 1986 94 period the paper extends results from earlier studies by using the actual prices of interventions based on the fact that all swiss national bank interventions are announced our test exploits the informational differences between interventions and customer transactions a key finding is that only initial interventions matter customer transactions and subsequent interventions have no influence when the bretton woods system of fixed exchange rates broke up in the early 1970s central banks continued to intervene on the foreign exchange market in the meantime a substantial literature has emerged that focuses on the effectiveness of official interventions this literature has been summarised by edison 1993 and almekinders 1995 chapter 3 its central policy issue is whether sterilised interventions defined as interventions that leave the monetary base unchanged can have a significant influence on exchange rate behaviour macroeconomic theory proposes various channels for interventions to operate through but the empirical evidence accumulated over the years is less encouraging it suggests that there is no permanent effect of sterilised interventions on the exchange rate more surprisingly perhaps even shortterm effects are hard to pin down the evidence is weak and sample dependent at best in most cases coefficients are either insignificant or have the wrong sign see almekinders 1995 chapter 6 baillie and humpage 1992 dominguez 1998 dominguez and frankel 1993 klein and rosengren 1991 lindberg 1994 and osterberg and wetmore humes 1995 during the last decade the bulk of the empirical research has concentrated on the analysis of daily or weekly data this line of research which adopts the view that exchange rate markets are highly efficient was stimulated by the decision of the federal reserve board and the deutsche bundesbank to make their daily intervention data available to outside researchers to rationalise the gap between the fragile empirical evidence and the manifest interest paid by the media and other observers to interventions various explanations have been offered in this paper we stress two measurement problems first there is the problem of properly defining the exchange rate change in the regression analysis since intervention exchange rates are not available the

liquidity and the law of one price the case of the futures cash basis deviations from no arbitrage relations should be related to market liquidity because liquidity facilitates arbitrage at the same time a wide futures cash basis may trigger arbitrage trades and in turn affect liquidity we test these ideas by studying the dynamic relation between stock market liquidity and the index futures basis there is evidence of two way granger causality between the short term absolute basis and liquidity and liquidity granger causes longer term absolute bases shocks to the absolute basis predict future stock market liquidity the evidence suggests that liquidity enhances the efficiency of the futures cash pricing system copyright 2007 by the american finance association

a transaction level study of the effects of central bank intervention on exchange rates abstract we study the effects of sterilised intervention operations executed on behalf of the swiss national bank snb using tick by tick transactions data between 1986 and 1995 we extend the preliminary analysis of economic journal 109 1999 662 by matching these data with indicative intra day exchange rate quotes and news wire reports of central bank activity using an event study approach we find that intervention has important short run effects on exchange rate returns in particular among various results we find that i intervention has a stronger impact when the snb moves with the market and when its activity is concerted with that of other central banks and ii exchange rate returns move in the 15 min interval prior to interventions

a test of the hotelling valuation principle time series tests of the hotelling r percent rule for natural resource prices have not been strongly supportive but the tests and the data are subject to serious difficulties we propose here an alternative testing strategy based on another but less widely known implication of the hotelling model we test this implication which we call the hotelling valuation principle by regressing the market values of the reserves of a sample of u s domestic oiland gas producing companies on their estimated hotelling values we find that the estimated hotelling values account for a significant portion of the observed variations in market values and that the hotelling measures are better indicators of the market values of petroleum properties than two widely cited publicly available alternative appraisals

modeling the bid ask spread measuring the inventory holding premium the need to understand and measure the determinants of market maker bid ask spreads is crucial in evaluating the merits of competing market structures and the fairness of market maker rents this study develops a simple parsimonious model for the market maker s spread that accounts for the effects of price discreteness induced by minimum tick size order processing costs inventory holding costs adverse selection and competition the inventory holding and adverse selection cost components of spread are modeled as an option with a stochastic time to expiration this inventory holding premium embedded in the spread represents compensation for the price risk borne by the market maker while the security is held in inventory the premium is partitioned in such a way that the inventory holding and adverse selection cost components as well as the probability of an informed trade are identified the model is tested empirically using nasdaq stocks in three distinct minimum tick size regimes and is shown to perform well both in an absolute sense and relative to competing specifications

exchange rate management in emerging markets intervention via an electronic limit order book this paper describes and analyzes the implementation of a crawling exchange rate band on an electronic trading platform the placement of limit orders at the central bank s target rate serves as a credible policy statement that may coordinate beliefs of market participants we find for our sample that intervention increases exchange rate volatility and spread for the next minutes but that intervention days show a lower degree of volatility and spread than non intervention days we also show for intraday data that the price impact of interbank order flow is smaller on intervention days than on non intervention days these stabilizing effects however rely on the conditions of large currency reserves and the existence of capital controls an electronic market seems to support this goal

when do central bank interventions influence intra daily and longer term exchange rate movements this paper examines dollar interventions by the g3 since 1989 and the reasons that trader reactions to these interventions might differ over time and across central banks market microstructure theory provides a framework for understanding the process by which sterilized central bank interventions are observed and interpreted by traders and how this process in turn might influence exchange rates using intra daily and daily exchange rate and intervention data the paper analyzes the influence of interventions on exchange rate volatility finding evidence of both within day and daily impact effects but little evidence that interventions influence longer term volatility

do sales of foreign exchange reserves lead to currency appreciation we employ novel time stamped reserve sales data provided by the czech national bank cnb to carry out a time series analysis of the exchange rate implications of czech reserve sales aimed at mitigating valuation losses on euro denominated assets the sales were explicitly not intended to influence the value of the koruna relative to the euro the period under study includes a well defined regime change in the cnb s approach to reserves sales allowing us to address whether the manner in which the sales are carried out matters for their influence on the relative value of the domestic currency we find little evidence that reserve sales influence the exchange rate when sales are carried out on a discretionary and relatively infrequent basis however when the sales are carried out daily we find a statistically and economically significant appreciation of the domestic currency follows