verbal interventions and exchange rate policies the case of swiss franc cap abstract we ask whether verbal interventions by the swiss national bank snb affected market beliefs in the desired direction during the period from 2011 to 2015 when the snb imposed a cap on the swiss franc at 1 20 against the euro a verbal intervention was a speech by a member of the snb governing board containing the wording utmost determination and or unlimited quantities we show that these verbal interventions lowered uncertainty regarding the future value of euro swiss franc exchange rate and steered market beliefs toward franc depreciation therefore reinforcing the credibility of the swiss franc cap

trading patterns and prices in the interbank foreign exchange market the behavior of quote arrivals and bid ask spreads is examined for continuously recorded deutsche mark dollar exchange rate data over time across locations and by market participants a pattern in the intraday spread and intensity of market activity over time is uncovered and related to theories of trading patterns models for the conditional mean and variance of returns and bid ask spreads indicate volatility clustering at high frequencies the proposition that trading intensity has an independent effect on returns volatility is rejected but holds for spread volatility conditional returns volatility is increasing in the size of the spread there is a growing body of theoretical studies on the pattern of trading activity in financial markets with implications for the time series behavior of transactions prices and intensity of trading the empirical literature addressing similar concerns using intraday market data appropriate for such tasks is sparse particularly in the area of the trading of currencies the purpose of this paper is to examine both international patterns of intraday trading activity and the time series properties of returns and bid ask spreads for the deutsche mark dollar exchange rate in the interbank foreign exchange market the goal is to provide information useful in the further development of market microstructure models of trading and to compare empirical findings against theoretical results already in existence the foreign exchange market is in operation twenty four hours a day seven

answering the skeptics yes standard volatility models do provide accurate forecasts a voluminous literature has emerged for modeling the temporal dependencies in financial market volatility using arch and stochastic volatility models while most of these studies have documented highly significant in sample parameter estimates and pronounced intertemporal volatility persistence traditional ex post forecast evaluation criteria suggest that the models provide seemingly poor volatility forecasts contrary to this contention we show that volatility models produce strikingly accurate interdaily forecasts for the latent volatility factor that would be of interest in most financial applications new methods for improved ex post interdaily volatility measurements based on high frequency intradaily data are also discussed

jumps cojumps and macro announcements we use recently proposed tests to extract jumps and cojumps from three types of assets stock index futures bond futures and exchange rates we then characterize the dynamics of these discontinuities and informally relate them to us macroeconomic releases before using limited dependent variable models to formally model how news surprises explain co jumps nonfarm payroll and federal funds target announcements are the most important news across asset classes trade balance shocks are important for foreign exchange jumps we relate the size frequency and timing of jumps across asset classes to the likely sources of shocks and the relation of asset prices to fundamentals in the respective classes

time consistency and bureaucratic budget competition high employment protection in the public sector results in strategic over employment if government divisions compete for budgets in a dynamic setting bureaucrats who are interested in maximising their divisions output employ excess labour since this induces the sponsor to provide complementary inputs in the future restrictions on hiring decisions in the public sector can be regarded as provisions to reduce strategic hiring we also provide evidence from a survey of decision makers in a public sector bureaucracy with very high employment protection the results confirm that decision makers are aware of the strategic effects of their hiring decisions on budget allocation 2008 the author s journal compilation royal economic society 2008

animal spirits in the foreign exchange market it is traditionally assumed in finance models that the fundamental value of an asset is known with certainty in this paper we depart from that assumption we propose a simple model of the exchange rate in which agents have biased and unbiased beliefs about the fundamental rate we show that such a model produces waves of optimism and pessimism unrelated to the underlying fundamental value in addition the model shows that in a world characterized by the existence of heterogeneous beliefs about the fundamental exchange rate movements can be remarkably complex even if only fundamentalist traders operate in the market

outliers and garch models in financial data abstract we propose to extend the additive outlier ao identification procedure developed by franses and ghijsels franses p h ghijsels h 1999 additive outliers garch and forecasting volatility international journal of forecasting 15 1 9 to take into account the innovative outliers ios in a garch model we apply it to three daily stock market indexes and examine the effects of outliers on the diagnostics of normality

should central bankers talk to the foreign exchange markets in this paper we study the role of official statements and speeches given by central bank authorities in charge of foreign exchange policy we investigate the impact of statements that comment on and confirm such interventions on the day of the intervention on the two major foreign exchange markets over an extended period 1989 2003 we also study the impact in terms of policy effectiveness of central bank communication before the actual operations our results suggest that appropriate speeches clarifying the current intervention policy can have marginally virtuous effects both in terms of exchange rate level and exchange rate volatility this leads us to conclude that in general actual interventions on the market should still be employed provided that official statements are used to clarify the nature and purpose of these interventions c 2008 elsevier ltd all rights reserved

ecb monetary policy surprises identification through cojumps in interest rates this paper proposes a new econometric approach to disentangle two distinct response patterns of the yield curve to monetary policy announcements based on cojumps in intraday tick data of a short and long term interest rate we develop a day wise test that detects the occurrence of a significant policy surprise and identifies the market perceived source of the surprise the new test is applied to 133 policy announcements of the european central bank ecb in the period from 2001 2012 our main findings indicate a good predictability of ecb policy decisions and remarkably stable perceptions about the ecb s policy preferences

the statistical properties of daily foreign exchange rates 1974 1983 abstract this paper examines the statistical properties of daily rates of change of five foreign currencies from 1974 to 1983 the main purpose is to discriminate between two competing explanations for the observed heavy tails of the distribution that the data are independently drawn from a heavy tail distribution which remains fixed over time and that the data come from distributions which vary over time evidence point to the rejection of the first hypothesis further investigations show that the rejection can be attributed to changing means and variances in the data which can be described by a simple statistical model

the intra day impact of communication on euro dollar volatility and jumps abstract in this paper we examine the intra day effects of verbal statements and comments on the fx market uncertainty using two measures continuous volatility and discontinuous jumps focusing on the euro dollar exchange rate we provide empirical evidence of how these two sources of uncertainty matter in measuring the short term reaction of exchange rates to communication events talks significantly trigger large jumps or extreme events for approximately an hour after the news release continuous volatility starts reacting prior to the news intensifies around the release time and stays at high levels for several hours our results suggest that monetary authorities generally tend to communicate with markets on days when uncertainty is relatively severe and higher than normal disentangling the us and euro area statements we also find that abnormal levels of volatility are mostly driven by the communication of the euro area officials rather than us authorities

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

bilateralism multilateralism and the quest for global free trade abstract we develop an equilibrium theory of trade agreements in which both the degree and the nature bilateral or multilateral of trade liberalization are endogenously determined to determine whether and how bilateralism matters we also analyze a scenario where countries pursue trade liberalization on only a multilateral basis we find that when countries have asymmetric endowments or when governments value producer interests more than tariff revenue and consumer surplus there exist circumstances where global free trade is a stable equilibrium only if countries are free to pursue bilateral trade agreements by contrast under symmetry both bilateralism and multilateralism yield global free trade

u s intervention assessing the probability of success this paper estimates the unconditional and conditional probabilities that u s interventions successfully smooth short term mark dollar and yen dollar exchange rates the sample period extends from february 1987 to february 1990 assuming a binomial distribution the number of observed successes usually is greater than one would expect to see randomly results from a logit model suggest that coordinated intervention has a higher probability of success than unilateral intervention the probability of success also increases with the dollar amount of an intervention other conditioning variables are not significant the paper presents a reaction function with adjustments for the incidentally truncated nature of intervention data predicted values serve as instruments for intervention in the logit models

the impact of european central bank governing council announcements on the foreign exchange market a microstructural analysis abstract we examine the evidence regarding systematic patterns in the euro dollar foreign exchange market on days when the governing council gc of the european central bank announces its interest rate decisions versus other days we examine 5 minute data in a non linear framework allowing for switching between a high volatility informed trading state and a low volatility liquidity trading state we find strong evidence that the gc policy announcements contain significant news content although there is some evidence of positioning in the hour prior to the announcement this probably reflects dealers minimizing their exposure rather than evidence of information leakage

hub and spoke free trade areas theory and evidence from israel we study how the sequential formation of free trade areas affects trade flows between member countries in a three country three good model of comparative advantage if two countries have an fta and both sign a similar agreement with the third trade between the two decreases however if only one of them signs an additional fta a hub and spoke pattern arises and trade between the initial members increases israel s experience lends strong support to our model trade between israel and the eu subject to an fta since 1975 increased by an additional 29 after the introduction of the us israel fta in 1985 on etudie comment la formation sequentielle de zones de libre echange affecte les flux commerciaux entre les pays membres dans un modele d avantage comparatif avec trois pays et trois biens si deux pays ont un accord de libre echange et qu ils signent tous deux un accord similaire avec un tiers pays le commerce entre les deux pays originaux decroit cependant si seulement un des deux pays originaux signe un accord avec le troisieme un reseau en etoile emerge et le commerce entre les deux payx d origine s accroit l experience d israel donne un fort support au modele le commerce entre israel et l union europeenne sujet a un accord de libre echange depuis 1975 s est accru de 29 apres l introduction de l accord de libre echange entre israel et les etats unis en 1985

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 response of multinationals foreign exchange rate exposure to macroeconomic news abstract we use intraday data to estimate the daily foreign exchange exposure of u s multinationals and show that macroeconomic news affects these firms foreign exchange exposure news creates a substantial shift in the joint distribution of stock and exchange rate returns that has both a transitory and a persistent component for example a positive domestic demand surprise as reflected in higher than expected nonfarm payroll increases the value of the low exposure domestic activities and results in a persistent decrease in foreign exchange exposure

overlapping free trade agreements and international trade a network approach in our work we have analysed the effect of the hub and spoke nature of free trade agreements ftas on trade contrary to previous analyses we have considered the effects of the country s position in the fta network on the bilateral trade of the hub country we have conducted an in depth analysis of the global network of ftas focusing particularly on its evolution in the last 15 years we have utilised a panel data set covering the period 1960 2010 to investigate the effects of the hub and spoke on trade our results show that the countries that are more connected to ftas export more than those that are less involved although not all the partner countries you can connect with are the same an increase in the number of spokes that have no link between them has on average a negative effect on the trade of the hub which indicates that signing ftas with every country is not the optimal strategy for increasing trade however if we consider the way new ftas change the relative position of a country we can see that if new ftas make the country more central or less constrained in the network these new agreements have a strongly positive and significant pro trade effect

the significance of technical trading rule profits in the foreign exchange market a bootstrap approach abstract in this paper we present new evidence on the profitability and statistical significance of technical trading rules in the foreign exchange market we utilize a new data base currency futures contracts for the period 1976 1990 and we implement a new testing procedure based on bootstrap methodology our results suggest that simple technical trading rules have very often led to profits that are highly unusual splitting the entire sample period into three 5 year periods reveals that on average the profitability of some trading rules declined in the latest period although profits remained positive on average and significant in many cases jel f31 f47 g15

the short run dynamics of the price adjustment to new information we examine how prices in interest rate and foreign exchange futures markets adjust to the new information contained in scheduled macroeconomic news releases in the very short run using 10 second returns and tick by tick data we find that prices adjust in a series of numerous small but rapid price changes that begin within 10 seconds of the news release and are basically completed within 40 seconds of the release there is some evidence that prices overreact in the first 40 seconds but that this is corrected in the second or third minute after the release while volatility tends to be higher than normal just before the news release there is no evidence of information leakage in our analysis we correct for the biases created by bid ask spreads and tick by tick data

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

words are not all created equal a new measure of ecb communication we develop a field specific dictionary to measure the stance of the european central bank ecb monetary policy dovish neutral hawkish and the state of the eurozone economy positive neutral negative through the content of ecb press conferences in contrast with traditional textual analysis we propose a novel approach using term weighting and contiguous sequence of words n grams to better capture the subtlety of central bank communication we find that quantifying ecb communication using our field specific weighted lexicon helps to explain future ecb monetary decisions when considering an augmented taylor rule regarding european stock market volatility we find that markets are more less volatile on the day following a conference with a negative positive tone about the euro area economic outlook our indicators significantly outperform a textual classification based on the loughran mcdonald or apel blix grimaldi dictionaries and a media based measure of economic policy uncertainty

on the long term effectiveness of exchange rate communication and interventions abstract exchange rate communication has come to play an increasingly important role as a policy tool for monetary authorities over the past decade the paper assesses the strategies and the long term effectiveness of communication as well as actual interventions the empirical results for the g3 economies indicate that communication has not only exhibited a significant contemporaneous effect on exchange rates but also has moved forward exchange rates up to a horizon of 6 months in the desired direction moreover communication is found to reduce exchange rate volatility and uncertainty whereas actual interventions tend to raise it overall this underlines a key difference between these two policy tools and suggests that communication tends to be a fairly effective policy tool over the medium term

proliferating regional trade arrangements why and whither this paper investigates why regional trade arrangements rtas are proliferating extensively and how the effects of multiple rtas by interacting with each other evolve over time our empirical analysis based on an extended gravity model utilising a large panel dataset of 175 countries from 1948 to 1999 shows that rtas on average increase global trade by raising intra bloc trade without damaging extra bloc trade the net trade effects however heavily depend on the types of rta strategic evolution over time which we categorise as expansionary rtas duplicate rtas or overlapping rtas we find that countries excluded from an rta can benefit more from duplicating a separate rta than from joining an existing rta this result explains why the number of bilateral trade blocs rather than the membership size of existing rtas is currently exploding we also find that the net trade creating effects of rtas are substantially lower for countries participating in overlapping rtas this result suggests that it is less likely that the currently proliferating rtas will completely merge and lead the world economy to global free trade our empirical results are robust to controlling for the characteristics of countries that may influence the impact of rtas

how markets process information news releases and volatility we examine the impact of scheduled macroeconomic news announcements on interest rate and foreign exchange futures markets we find these announcements are responsible for most of the observed time of day and day of the week volatility patterns in these markets while the bulk of the price adjustment to a major announcement occurs within the first minute volatility remains substantially higher than normal for roughly fifteen minutes and slightly elevated for several hours nonetheless these subsequent price adjustments are basically independent of the first minute s return we identify those announcements with the greatest impact on these markets we examine the impact on interest rate and foreign exchange markets of scheduled macroeconomic news releases such as the employment report the consumer price index cpi and the producer price index ppi many market participants believe that such announcements have a major impact on financial markets indeed a small industry devoted to predicting the figures to be released in upcoming releases has evolved in recent years with the exception of the weekly money supply figures however the impact of such announcements on financial markets has received scant attention 1 this is doubly surprising given the considerable research interest in market volatility since these news releases are a potential source of much of this volatility consider for instance figure 1 as shown there prices in interest rate and foreign exchange futures markets are much more volatile between 8 30 and 8 35 a m eastern time et than during any other five minute trading period including

central bank communication and monetary policy a survey of theory and evidence over the last two decades communication has become an increasingly important aspect of monetary policy these real world developments have spawned a huge new scholarly literature on central bank communication mostly empirical and almost all of it written in this decade we survey this ever growing literature the evidence suggests that communication can be an important and powerful part of the central bank s toolkit since it has the ability to move financial markets to enhance the predictability of monetary policy decisions and potentially to help achieve central banks macroeconomic objectives however the large variation in communication strategies across central banks suggests that a consensus has yet to emerge on what constitutes an optimal communication strategy

talking heads the effects of ecb statements on the euro dollar exchange rate abstract this paper studies the reaction of the conditional mean and volatility of the euro dollar exchange rate to statements by european central bank and national central bank officials we focus on comments on monetary policy and the external value of the euro we find that the bundesbank has dominated the news coverage we conclude that ecb statements have mainly influenced conditional volatility in some cases there are effects of statements on the conditional mean of the euro dollar exchange rate efforts to talk up the euro have generally not been successful there is also evidence of asymmetric reactions to news

the high frequency response of the eur usd exchange rate to ecb communication we investigate the impact of the european central bank s monetary policy communication during the press conference held after the monthly governing council meeting on the eur usd exchange rate in high frequency based on the method of content analysis we construct communication indicators for the introductory statement and find that communication with respect to future price developments is most relevant in response to statements about increasing risks to price stability the eur appreciates on impact to the contrary communication about economic activity and monetary aggregates does not generate significant exchange rate reactions

beating the foreign exchange market filter rule profits found in foreign exchange markets in the early days of the current managed float persist in later periods as shown by statistical tests developed and implemented here the test is consistent with but independent of a wide variety of asset pricing models the profits found cannot be explained by risk if risk premia are constant over time inclusion of the home foreign interest rate differential in computing profits has little effect on the comparison of filter returns to those of buy and hold in the early years of the generalized managed floating that began in march 1973 filter rule profits in excess of buy and hold were found for many countries logue sweeney and willett 18 dooley and shafer 6 cornell and dietrich 5 it was unclear however whether such profits indicated inefficiencies first it was not clear that risk was adequately handled in such tests and often risk was ignored second there was no evidence such profits would be available postsample and third there was no statistical test of the significance of these profits this paper uses the logic of risk return tradeoffs to analyze the role of risk in such tests and illustrates the logic in a discussion using the sharpe lintner capital asset pricing model capm although a breeden consumption based capm a merton intertemporal capm or an arbitrage pricing model apm could easily be used the paper develops a test of statistical significance appropriate to foreign exchange markets section i analyzing the rate of return on foreign exchange speculation less the foreign domestic interest rate differential the test explicitly assumes that risk premia are constant over the sample the excess rates of return observable in using filters in going from a risk free dollar asset to a risk free deutsche mark dm asset persist into the 1980 s section ii and this is true even when taking account of transactions costs it turns out that these results for the dm case do not depend very much on the interestrate differential but primarily on exchange rate behavior this is useful to know because it is often quite difficult to find matching interest rate data of high quality for a sample of nine other currencies using only exchange rates section iii shows that the excess returns made in the first 610 days of the float persist in the next 1 220 days into the 1980 s dooley and shafer 7 find similar persistence in experiments that do not use buy and hold and have no significance tests when filter rule profits have been found in spot exchange markets it has often been argued that the profits are due to risk this paper uses the capm to analyze rates of return both to buy and hold and to filter strategies it turns out that the claremont mckenna college and claremont graduate school arthur d warga douglas joines and thomas d willett offered helpful comments and ning ning koo provided research assistance

small hubs large spokes and overlapping free trade agreements the proliferation of overlapping free trade agreements fta in recent years has led to pair wise hub and spokes has throughout the world being avid subscribers to ftas many countries in the asia pacific region including the united states japan singapore south korea thailand and australia have become trade hubs to their partners who are in turn relegated to spoke status in this paper we question whether being a hub is welfare optimal for a small and open economy such as singapore compared to membership in a single bilateral fta or a multi member free trade zone within this context we use a computable general equilibrium model to examine the welfare implications of the triangular trade relationship of the united states singapore and japan this is facilitated by the japan singapore economic partnership agreement the usa singapore free trade agreement and a hypothetical usa japan economic partnership agreement the analysis is extended to incorporate super hub effects that is the spoke countries could be trade hubs in other has systems our experiment reveals that hub status generates positive welfare gain and is the highest singapore can get from the trade configurations considered meanwhile japan loses more than the usa when both are relegated to spoke status these findings prove to be robust under different market structures and production technologies deeper economic integration super hub effects as well as uncertainty in the key model parameters and the extent of trade liberalisation shocks

why do central banks intervene abstract intervention by central banks in terms of buying and selling foreign currency has been a major activity in recent years this paper investigates the motivations for such policy and the evidence for its effectiveness we use high quality daily data on the dollar amounts of intervention by the central banks of the us and germany we also use information on agreed g7 target levels for the dm and yen nominal exchange rates daily nominal dollar exchange rate returns are well described as a martingale garch process and we find little evidence that the different types of intervention have had much effect on the conditional mean of exchange rate returns there is some evidence that intervention is associated with slight increases in the volatility of exchange rate returns while little evidence is found for the effectiveness of intervention the motivations are more clear in particular from the application of probit analysis we find that the probability of intervention is determined by the magnitude of the deviation of the nominal exchange rate from the agreed target level and to a lesser extent by the current volatility of exchange rates

the euro exchange rate during the european sovereign debt crisis dancing to its own tune abstract this paper studies the determinants of the euro exchange rate volatility during the european sovereign debt crisis allowing a role for macroeconomic fundamentals policy actions and the public debate by policy makers it finds that the euro exchange rate mainly danced to its own tune with a particularly low explanatory power for macroeconomic fundamentals the findings of the paper also suggest that financial markets might have been less reactive to the public debate by policy makers than previously feared still there are instances where exchange rate volatility increased in response to news such as on days when several politicians from aaa rated countries went public with negative statements suggesting that communication by policy makers at times of crisis should be cautious about triggering undesirable financial market reactions

anomalies foreign exchange most all behavior can be explained by assuming that agents have stable well defined preferences and make rational choices consistent with those preferences in markets that eventually clear an empirical result qualifies as an anomaly if it is difficult to rationalize or if implausible assumptions are necessary to explain it within the paradigm this column will present a series of such anomalies readers are invited to suggest topics for future columns by sending a note with some reference to or better yet copies of the relevant research comments on anomalies printed here are also welcome the address

central bank intervention and foreign exchange rates new evidence from figarch estimations abstract in this paper we investigate the effects of official interventions on the short run evolution and volatility of exchange rates to this aim we rely on a new measure of volatility implied by the figarch model that outperforms the traditionally used garch one it is found that central bank interventions exert an incorrectly signed effect on the levels of exchange rates and tend to increase their volatility in the short run in general our results also show that the traditional garch estimations tend to underestimate the effects in terms of volatility

tails fears and risk premia we show that the compensation for rare events accounts for a large fraction of the average equity and variance risk premia exploiting the special structure of the jump tails and the pricing thereof we identify and estimate a new investor fears index the index reveals large time varying compensation for fears of disasters our empirical investigations involve new extreme value theory approximations and high frequency intraday data for estimating the expected jump tails under the statistical probability measure and short maturity out of the money options and new model free implied variation measures for estimating the corresponding risk neutral expectations

oral interventions versus actual interventions in fx markets an event study approach the article assesses whether exchange rate communication or oral intervention has been an effective policy tool for monetary authorities to influence exchange rates it employs an event study methodology that identifies intervention clusters or events for the euro dollar and the dollar yen exchange rates the article finds that both oral intervention events and actual intervention events have been highly successful over the short to medium run the article shows that the success of intervention events is related to market conditions and to the coordination among policy makers it also finds that the success of communication and actual interventions is largely unrelated to monetary policy thus suggesting that interventions primarily function through a coordination channel

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

the effectiveness of alternative monetary policy tools in a zero lower bound environment this paper reviews alternative options for monetary policy when the shortterm interest rate is at the zero lower bound and develops new empirical estimates of the effects of the maturity structure of publicly held debt on the term structure of interest rates we use a model of risk averse arbitrageurs to develop measures of how the maturity structure of debt held by the public might affect the pricing of level slope and curvature term structure risk we find that these treasury factors historically were quite helpful for predicting both yields and excess returns over 1990 2007 the historical correlations are consistent with the claim that if in december 2006 the fed were to have sold off all its treasury holdings of less than 1 year maturity about 400 billion and use the proceeds to retire treasury debt from the long end this might have resulted in a 14 basis point drop in the 10 year rate and an 11 basis point increase in the 6 month rate we also develop a description of how the dynamic behavior of the term structure of interest rates changed after hitting the zero lower bound in 2009 our estimates imply that at the zero lower bound such a maturity swap would have the same effects as buying 400 billion in long term maturities outright with newly created reserves and could reduce the 10 year rate by 13 basis points without raising short term yields

equilibrium exchange rate hedging we assume a world like the one that gives the capital asset pricing model but with many goods and many countries we assume that investors in a given country have homothetic utility functions with the same weights and a currency that has a sure endof period value using a price index with those weights siegel s paradox derived from jensen s inequality makes investors want a positive amount of exchange risk when average risk tolerance is the same across countries every investor will hold the same mix of market risk through the world market portfolio of all assets and exchange risk in a diversified basket of foreign currencies in fact the ratio of exchange risk to market risk is equal to the average investor s risk tolerance we can write the ratio of exchange risk to market risk and the fraction of the market s exchange risk that investors hedge as depending on an average of world market risk premia an average of world market volatilities and an average of exchange rate volatilities the weights in these averages are the same as the weights of the different countries in the currency basket given these averages the ratio and the fraction hedged will not depend directly on exchange rate means or covariances in equilibrium we can use the ratio of exchange risk to market risk to measure average risk tolerance in this model risk tolerance is observable

jumps in financial markets a new nonparametric test and jump dynamics this paper introduces a new nonparametric test to detect jump arrival times and realized jump sizes in asset prices up to the intra day level we demonstrate that the likelihood of misclassiflcation of jumps becomes negligible when we use high frequency returns using our test we examine jump dynamics and their distributions in the u s equity markets the results show that individual stock jumps are associated with prescheduled earnings announcements and other company speciflc news events additionally s p 500 index jumps are associated with general market news announcements this suggests difierent pricing models for individual equity options versus index op

event studies in economics and finance the event study is an important research tool in economics and finance the goal of an event study is to measure the effects of an economic event on the value of firms event study methods exploit the fact that given rationality in the marketplace the effects of an event will be reflected immediately in security prices thus the impact can be measured by examining security prices surrounding the event in this paper event study methods are described including some of the potential complications an example is included to illustrate the approach

effects of hub and spoke free trade agreements on trade a panel data analysis summary we use panel data consisting of 96 countries and covering the period 1960 2000 to investigate the effects of free trade agreements ftas and hub and spoke systems of fta on exports our empirical results imply an annual growth rate of 5 57 in exports and hence a doubling of exports after 12 4 years between fta partners non overlapping ftas account for 4 12 while hub and spoke ftas account for 1 45 of the estimated export growth rate this indicates that in addition to the direct trade liberalizing effect of ftas the hub and spoke nature of ftas has an additional positive effect on trade

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