variations in trading volume return volatility and trading costs evidence on recent price formation models patterns in stock market trading volume trading costs and return volatility are examined using new york stock exchange data from 1988 intraday test results indicate that for actively traded firms trading volume adverse selection costs and return volatility are higher in the first half hour of the day this evidence is inconsistent with the admati and pfleiderer 1988 model which predicts that trading costs are low when volume and return volatility are high interday test results show that for actively traded firms trading volume is low and adverse selection costs are high on monday which is consistent with the predictions of the foster and viswanathan 1990 model academics investors and regulators alike are now intensively focused upon understanding the volatility of asset returns and its relation to trading volume this interest was undoubtedly piqued by the market break of october 1987 a time during which volatility and trading volume reached unprecedented levels but even beforehand researchers observed regular differences in the return process for various hours of the day and days of the week research concerning temporal patterns in stock market volatility and volume falls in two groups studies that document observed patterns and studies that develop models to predict patterns among the studies in the first group are oldfield and rogalski 1980 french and roll 1986 stoll and whaley 1990 harris 1986 and wood mcinish and ord 1985 who report evidence on seasonalities in daily and weekly return variances among the regularities that have been documented using interday data is that volatility is higher when the market is open than when it is closed oldfield and rogalski 1980 french and roll 1986 and stoll and whaley 1990 for example point out significant differences in return volatility between trading

taking stock monetary policy transmission to equity markets this paper analyses the effects of u s monetary policy on stock markets we present evidence that individual stocks react in a highly heterogeneous fashion to u s monetary policy shocks and relate this heterogeneity to financial constraints and tobin s q first we show that there are strong industry specific effects of u s monetary policy second we also find that for the 500 individual stocks comprising the s p500 the firms with low cash flows small size poor credit ratings low debt to capital ratios high price earnings ratios or a high tobin s q are affected significantly more by monetary policy

new measures of monetary policy surprises and jumps in interest rates abstract we propose new surprise measures to characterise two important dimensions of monetary policy our measures outperform the traditional monetary shocks in explaining variation of interest rates in the event study framework we also study the extent to which the ecb caused jumps in euro area interest rates the new surprises still prevail upon the traditional ones jumps play a great role in the variation of interest rates and the ecb induced several jumps with its decisions but its predictability has improved over time we find that although the surprise measures become somewhat distorted due to money market tensions during the financial turmoil our model still provides an interesting insight into interest rate behaviour throughout the crisis

estimating the open market desk s daily reaction function this paper presents the results of an empirical investigation into the proximate determinants of the federal reserve s daily open market operations using information available each morning at the fed conference call the author models the open market desk s choice of both the quantity and the type of operation using a friction model for the former and a multinomial logit framework for the latter different types of operations are shown to send different signals to the market about the underlying thrust of fed policy and open market operations in recent years are shown to have become increasingly keyed to the federal funds rate copyright 1993 by ohio state university press

quantitative easing and the uk stock market does the bank of england information dissemination strategy matter we use intraday aggregate stock market data and an event study framework to assess the uk s equity market reaction to the unexpected element of the bank of england monetary policy committee s mpc asset purchase announcements for the 2009 2017 period we assess the reactions of equity returns and their volatility over various time frames both preceding and following the mpc announcements our results show that the uk unconventional monetary policy shocks have a significant impact on domestic equity returns and volatilities the strength of this impact depends on the bank s information dissemination through inflation reports and the publication of the mpc s voting records jel g14 e44 e52

the fed and the stock market an identification based on intraday futures data this article develops a new identification procedure to estimate the contemporaneous relation between monetary policy and the stock market within a vector autoregression var framework the approach combines high frequency data from the futures market with the var methodology to circumvent exclusion restrictions and achieve identification our analysis casts doubt on var models imposing a recursive structure between innovations in policy rates and stock returns we find that a tightening in policy rates has a negative impact on stock prices and that the federal reserve fed has responded significantly to movements in the stock market estimates are robust to various model specifications

discount rate changes stock market returns volatility and trading volume evidence from intraday data and implications for market efficiency we examine the eaect of discount rate changes on stock market returns volatility and trading volume using intraday data equity returns generally respond negatively and significantly to the unexpected announcements however the eaect of expected changes on equity returns is insignificant furthermore our results indicate that equity prices respond to announcements within the trading period hour after the information release an indication of a return reversal is too small to cover the full transaction costs unexpected discount rate changes also contribute to higher market volatility although the volatility is short lived similarly unexpected changes in discount rates induce larger trading volume while expected changes do not abnormal trading volume occurs only in period t our results also support the notion that unexpected changes in the discount rates impact market returns irrespective of the federal reserve operating procedures 1999 elsevier science b v all rights reserved

market efficiency and the u s market for sulfur dioxide allowances focusing on the u s sulfur dioxide so2 allowance market from its inception in 1994 to 2009 we model allowance prices to determine the influence of market fundamentals on allowance price level and volatility we find evidence that the so2 market operates in ways that are not inconsistent with an efficient market prices that reflect marginal abatement costs after the first few years of the program but before a court decision that introduced significant uncertainty into the market in mid 2008 our empirical analysis finds that the so2 market similar to other emission markets studied in the literature can remain relatively inefficient for several years after launch we also find that market volatility increases in response to all types of communications from the administrator suggesting that the development of a formal communication strategy possibly similar to that used by central banks would reduce price volatility and increase the efficiency of the market

the impact of fomc statements on the volatility of asset prices this article examines the impact of federal open market committee fomc statements on asset prices statements are found to have a much more pronounced impact on the volatility of asset prices than interest rate surprises they influence primarily stock returns intermediate and long term yields whereas short term rates are driven both by statements and by interest rate surprises we also find that the regime shift of may 1999 has improved the effectiveness of monetary policy as reflected in an overall reduction in market volatility during the most recent regime in addition markets are equally well prepared for the upcoming rate decision in both regimes but the process of adjustment depends on whether a statement was issued in the old regime or not when a statement is issued price adjustments are very similar across both periods whereas if no statement is issued then the rate of adjustment towards the new value is more gradual and occurs throughout the entire intermeeting period

asymmetric effects of federal funds target rate changes on s p100 stock returns volatilities and correlations we study the effects of fomc announcements of federal funds target rate decisions on individual stock returns volatilities and correlations at the intraday level for all three characteristics we find that the stock market responds differently to positive and negative target rate surprises first the average response to positive surprises that is bad news for stocks is larger second in case of bad news the mere occurrence of a surprise matters most whereas for good news its magnitude is more important these new insights are possible due to the use of high frequency intraday data

the impact of wind power generation on the electricity price in germany abstract this paper investigates the relationship between intermittent wind power generation and electricity price behaviour in germany using a garch model i evaluate the effect of wind electricity generation on the level and the volatility of the electricity price in an integrated approach the results show that variable wind power reduces the price level but increases its volatility this paper s results also indicate that regulatory change has stabilised the wholesale price the electricity price volatility has decreased in germany after a modification of the marketing mechanism of renewable electricity this gives confidence that further adjustments to regulation and policy may foster a better integration of renewables into the power system

some models for estimating technical and scale inefficiencies in data envelopment analysis in management contexts mathematical programming is usually used to evaluate a collection of possible alternative courses of action en route to selecting one which is best in this capacity mathematical programming serves as a planning aid to management data envelopment analysis reverses this role and employs mathematical programming to obtain ex post facto evaluations of the relative efficiency of management accomplishments however they may have been planned or executed mathematical programming is thereby extended for use as a tool for control and evaluation of past accomplishments as well as a tool to aid in planning future activities the ccr ratio form introduced by charnes cooper and rhodes as part of their data envelopment analysis approach comprehends both technical and scale inefficiencies via the optimal value of the ratio form as obtained directly from the data without requiring a priori specification of weights and or explicit delineation of assumed functional forms of relations between inputs and outputs a separation into technical and scale efficiencies is accomplished by the methods developed in this paper without altering the latter conditions for use of dea directly on observational data technical inefficiencies are identified with failures to achieve best possible output levels and or usage of excessive amounts of inputs methods for identifying and correcting the magnitudes of these inefficiencies as supplied in prior work are illustrated in the present paper a new separate variable is introduced which makes it possible to determine whether operations were conducted in regions of increasing constant or decreasing returns to scale in multiple input and multiple output situations the results are discussed and related not only to classical single output economics but also to more modern versions of economics which are identified with contestable market theories

monopolistic competition increasing returns to scale and the importance of productivity shocks abstract the neoclassical growth model is extended to incorporate monopolistic competition and increasing returns to scale implications for the measurement of productivity change through the solow residual are studied it is found that for this extension productivity fluctuations continue to account for a substantial fraction of output volatility the model cannot account for volatility of employment

simultaneous monetary policy announcements and international stock markets response an intraday analysis abstract this paper investigates the return and volatility response of major european and us equity indices to monetary policy surprises by utilizing extensive intraday data on 5 min price quotes along with a comprehensive dataset on monetary policy decisions and macroeconomic news announcements the results indicate that the monetary policy decisions generally exert immediate and significant influence on stock index returns and volatilities in both european and the us markets the findings also show that press conferences held by the european central bank ecb that follow monetary policy decisions on the same day have a clear impact on european index return volatilities this implies that they convey additional important information to market participants overall our analysis suggests that the use of high frequency data is critical to separate the effect of monetary policy actions from those of macroeconomic news announcements on stock index returns and volatilities

do central banks react to the stock market the case of the bundesbank abstract in this paper we ask whether the bundesbank prior to the european central bank taking responsibility for monetary policy in 1999 reacted systematically to stock price movements in contrast to the results for the us our empirical findings show a generally weak relationship between german stock returns and short term interest rates at the daily and the monthly frequency the results are extremely robust to alternative model specifications the evidence is inconsistent with the hypothesis of a systematic reaction of the bundesbank to german stock prices however we do find that as in the us the bundesbank may have reacted to the stock market crash of 1987 by loosening monetary policy

stale information shocks and volatility we propose a new approach to measuring the effect of unobservable private information on volatility using intraday data we estimate the effect of a well identified shock on the volatility of stock returns of european banks as a function of the quality of public information available about the banks we hypothesize that as publicly available information becomes stale volatility effects and its persistence increase as private information of investors becomes more important we find strong support for this idea in the data we further show that stock volatility is higher just before important announcements if information is stale

public information arrival we develop a measure of public information flow to financial markets and use it to document the patterns of information arrival with an emphasis on the intraday flows the measure is the number of news releases by reuter s news service per unit of time we find that public information arrival is nonconstant displaying seasonalities and distinct intraday patterns next we relate our measure of public information to aggregate measures of intraday market activity our results suggest a positive moderate relationship between public information and trading volume but an insignificant relationship with price volatility

the reaction of stock returns to news about fundamentals in good times stock prices react negatively to good news and positively to bad news whereas in bad times they react positively to good news and negatively to bad news to account for this stylized fact we consider an asset pricing model where the dividend growth rate switches between different values depending on the underlying state of the economy investors never observe the true dividend growth rate but learn about it through not only its realizations but also external signals such as macroeconomic indicators under plausible assumptions the differing precision of external signals across different states of the economy can change the sign of the market reaction to news from external signals in good and bad times this paper was accepted by brad barber finance

policy language and information effects in the early days of federal reserve forward guidance i show that the nature of the federal open market committee s fomc s forward guidance language shapes the private sector s responses to monetary policy statements from february 2000 to june 2003 the fomc only gave forward guidance about economic outlook risks and a decrease in the expected federal funds rate path caused stock prices to fall gdp growth forecasts to fall and the unemployment rate to rise from august 2003 to may 2006 the fomc added forward guidance about policy inclinations and a decrease in the expected federal funds rate path had the opposite effects these results suggest that forward guidance that emphasizes economic outlook risks causes stronger information effects than forward guidance that emphasizes policy inclinations

pre announcement effects news effects and volatility monetary policy and the stock market abstract i examine pre announcement and news effects on the stock market in the context of public disclosure of monetary policy decisions the results suggest that the stock market tends to be relatively quiet conditional volatility is abnormally low on days preceding regularly scheduled policy announcements although this calming effect is routinely reported in anecdotal press accounts it is statistically significant only over the past four to five years a result that i attribute to changes in the federal reserve s disclosure practices in early 1994 the paper also looks at how the actual interest rate decisions of policy makers affect stock market volatility the element of surprise in such decisions tends to boost stock market volatility significantly in the short run and positive surprises higher than expected values of the target federal funds rate tend to have a larger effect on volatility than negative surprises the implications of the results for broader issues in the finance and economics literatures are also discussed

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

free entry and social inefficiency our goal is to provide a simple yet general exposition of the conditions under which the number of entrants in a free entry equilibrium is excessive insufficient or optimal our analysis compares the number of firms that enter a market when there is free entry with the number that would be desired by a social planner who is unable to control the behavior of firms once they are in the market that is we consider the second best problem of choosing the welfare maximizing number of firms while we take as given their noncompetitive behavior after entry we demonstrate that the crucial conditions for establishing the presence of an entry bias can be stated quite simply in terms of the outcome of the postentry game played by entrants in contrast to previous work we do not need to model this postentry game explicitly

data envelopment analysis on a relaxed set of assumptions data envelopment analysis is a procedure for evaluation of the relative efficiency of units in a production system dea involves construction of composite units as convex combinations of other units inputs and outputs under various conditions related to returns to scale the assumption of convexity is inconsistent with increasing returns to scale and not implied by constant or non increasing returns to scale an alternative dea approach which does not invoke the assumption of a convex production possibility set is developed in this paper it is implemented in two stages stage one is concerned with the spanning of isoquants and stage two with an evaluation of the position of an observed input output combination compared to the isoquants both stages involve linear programming techniques solely

the impact of public information on the stock market we study the relation between the number of news announcements reported daily by dow jones company and aggregate measures of securities market activity including trading volume and market returns we find that the number of dow jones announcements and market activity are directly related and that the results are robust to the addition of factors previously found to influence financial markets such as day of the week dummy variables news importance as proxied by large new york times headlines and major macroeconomic announcements and non information sources of market activity as measured by dividend capture and triple witching trading however the observed relation between news and market activity is not particularly strong and the patterns in news announcements do not explain the day of the week seasonalities in market activity our analysis of the dow jones database confirms the difficulty of linking volume and volatility to observed measures of information

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

macroeconomic news announcements and stock market jump intensity dynamics abstract this paper examines the effect of macroeconomic releases on stock market volatility through a poisson gaussian garch process with time varying jump intensity which is allowed to respond to such information the day of the announcement per se is found to have little impact on jump intensities employment releases are an exception however when macroeconomic surprises are considered inflation shocks show persistent effects while monetary policy and employment shocks reveal only short lived effects also the jump intensity responds asymmetrically to macroeconomic shocks evidence on macroeconomic variables relevance in explaining jump dynamics and improving volatility forecasts on event days is provided

the effect of changes in the federal funds rate target on market interest rates in the 1970s abstract this paper examines the influence of monetary policy on interest rates by estimating the effect of changes in the federal funds rate target the federal reserve s policy instrument on market interest rates in the 1970s we find that changes in the target caused large movements in short term rates and smaller but significant movements in intermediate and long term rates we hypothesize that the similarity of the reactions of three six and twelve month rates to changes in the target offers a possible explanation for the lack of support for the expectations theory from studies that have tested the theory using these rates

impact of interest rate surprises on islamic and conventional stocks and bonds abstract this paper studies the impact of interest rate news surprises on islamic and conventional stock and bond indices using a dataset which covers interest rate announcements and forecasts as well as stock and bond indices in three islamic and eight non islamic countris we find that interest rate surprises tend to have a smaller impact on the returns and volatility of islamic than conventional bonds because islamic bonds are structured to avoid explicit interest rates however interest rate surprises have about the same or bigger impact on the returns and volatility of islamic relative to conventional stocks despite the low amounts of cash and debt holdings of firms comprising islamic stock indices

is information assimilated at announcements in the european carbon market abstract we examine the high frequency new information impact on prices volatility trading volume and illiquidity at scheduled macroeconomic and verified emissions announcements for the european carbon futures market verified emissions united states non farm payroll and german new factory order macroeconomic announcements impact carbon prices swiftly within 5 min we show that a one standard deviation surprise increase in verified emission announcements is associated with an approximate ten percentage point 9 96 increase in carbon futures returns a wait and see stylized trading behavior is evident at announcements in volatility and trading volumes market illiquidity increases at announcements in relation to united states non farm payroll albeit there is no evidence of an increase in illiquidity prior to announcements the development of new information impact over time occurs mainly in the at announcement 5 minute time interval

assessing the impact of the ecb s monetary policy on the stock markets a sectoral view this paper analyzes the response of the european stock markets to the monetary policy shocks by the european central bank using the heteroskedasticity based approach of rigobon 2003 we find that monetary policy tightening has a heterogeneous impact on the euro area sectors on the day the monetary policy is publicly announced furthermore we provide statistical evidence against the use of the popular event study approach when assessing the impact of monetary policy shocks on the stock market as the maintained assumptions can be rejected for the aggregate stock market and for most of the sectoral stock market indexes

macroeconomic news surprises volume and volatility relationship in index futures market abstractthis paper examines the role of macroeconomic news surprises on returns volatility of indian index futures market empirical literature posits that news arrivals have an influential impact

the impact of monetary policy announcements on the stock price of large european banks during the financial crisis abstract since 2007 the european central bank responded decisively to the challenges posed by the global financial crisis reducing key policy interest rates to unprecedented low levels and intervening with non standard policy measures i e monetary easing and liquidity provision this paper aims to assess the impact of ecb monetary policy announcements on the stock price of large european banks as a first step an event study is conducted in order to measure cumulated abnormal returns cars around the announcements over june 2007 june 2013 the second step is a regression analysis aimed at identifying the determinants of cars results show that banks were more sensitive to non conventional measures than to interest rate decisions and that the same type of intervention may have a different impact depending on the stage of the crisis in addition banks with weaker balance sheets and operating with high risk were more sensitive to monetary policy interventions

measuring efficiency with quasiconcave production frontiers abstract comparing with the frontiers derived from the data envelopment analysis dea and banker charnes cooper bcc methods the frontier derived from the free disposal hull fdh method is the closest to observed decision making units dmus and hence it can give each dmu the highest efficiency score however the frontier from the fdh method may not be a quasiconcave production frontier the production frontiers derived by petersen on the other hand may overstate inefficiency for some quasiconcave production frontiers this paper has used the minimum convex input requirement set and maximum convex output possible set to construct the closest quasiconcave production frontier for dmus by ordering dmus by input output level the dea method can be employed to estimate input based and output based efficiency scores

market set up in advance of federal reserve policy rate decisions textabstractthis paper considers the uncertainty associated with upcoming federal open market committee fomc announcements and the extent to which participants in the fed funds futures market prepare for such announcements before they actually occur we demonstrate that markets set up well in advance of known announcement days going back as far as six months prior to an fomc meeting as a result there is often less variation in fed funds futures prices in the period immediately preceding an fomc announcement despite greater volume of activity as the market has already incorpo rated anticipated signals we find that macro announcements and central bank officials speeches and congressional testimony are of comparable importance in addition while macro announcements have stronger effects when they are released during the fed s blackout period congressional testimony is more important when it coincides with days when important macro variables are released

monetary policy surprises and interest rates evidence from the fed funds futures market abstract this paper estimates the impact of monetary policy actions on bill note and bond yields using data from the futures market for federal funds to separate changes in the target funds rate into anticipated and unanticipated components interest rates response to anticipated target rate changes is small while their response to unanticipated changes is large and highly significant these responses are generally consistent with the expectations hypothesis of the term structure surprise target rate changes have little effect on expectations of future actions however which helps to explain the lack of empirical support for the expectations hypothesis at the short end of the yield curve

on the volatility and comovement of u s financial markets around macroeconomic news announcements the objective of this paper is to provide a deeper insight into the links between financial markets and the real economy to that end we study the short term anticipation and response of u s stock treasury and corporate bond markets to the first release of surprise u s macroeconomic information specifically we focus on the impact of these announcements not only on the level but also on the volatility and comovement of those assets returns we do so by estimating several extensions of the parsimonious multivariate garch dcc model of engle 2002 for the excess holding period returns on seven portfolios of these asset classes we find that both the process of price formation in each of those financial markets and their interaction appear to be driven by fundamentals yet our analysis reveals a statistically and economically significant dichotomy between the reaction of the stock and bond markets to the arrival of unexpected fundamental information we also show that the conditional mean volatility and comovement among stock treasury and corporate bond returns react asymmetrically to the information content of these surprise announcements overall the above results shed new light on the mechanismsbywhichnewinformationisincorporatedintopriceswithinandacrossu s financial markets

walking on thin ice market quality around fomc announcements abstract this paper examines market quality for the e mini s p 500 futures around federal reserve announcements i document that the release of the federal open market committee fomc statement induces significantly higher than normal volatility and trading volume the bid ask spread is significantly higher in the minutes preceding the release but it returns to its normal level immediately after the release using order level data i show that market depth behind the best bid and ask quotes is much lower on event days hitting an intraday low immediately before the fomc release at values on average about 20 percent of the level observed in control days

optimal fiscal policies congestion and over entry by shedding light on market imperfections and the congestion of public goods we show that free entry in a market equilibrium will lead to excessive entry relative to the social optimum moreover by specifying a generalized congestion function it is also shown that different fiscal policies including labor income tax capital income tax and government expenditure play a distinct role in terms of remedying market distortions specifically optimal income taxes decrease with the degree of market imperfections in order to remove the monopoly inefficiency while they increase with the degree of congestion in order to remedy the adverse externality caused by congestion distortion since a higher degree of increasing returns to an expansion in the variety of intermediate goods is found to intensify the congestion effect of government infrastructure expenditure the optimal rule of government expenditure proposed by barro 1990 should be modified

public investment congestion and private capital accumulation this paper analyses the impact of public investment on the dynamics of private capital formation in an intertemporal optimising market clearing framework the key feature characterising the analysis is that the public good is treated as a durable capital good subject to congestion we show how in the presence of congestion the effect of government investment on private capital formation involves a tradeoff between the degree of substitution between private and public capital in production and the degree of congestion both lump sum and distortionary tax financing are considered with this tradeoff being tightened in the latter case

imperfect competition and the fiscal multiplier the impact of fiscal policy in an economy with a monopolistic output market but a perfectly competitive labor market is examined both in the short run with a fixed number of firms and in the long run with free entry the main innovation of the paper is the generality of the assumptions about preferences and technology which enable the authors to examine the robustness of the relationship between the degree of monopoly and the fiscal multiplier found by r startz 1989 n g mankiw 1988 and h d dixon 1987 the specific results of these papers are found to rest on two assumptions constant returns and cobb douglas preferences copyright 1996 by the editors of the scandinavian journal of economics

the reaction of asset markets to swiss national bank communication abstract in this paper we analyze high frequency movements in swiss asset markets in reaction to real time communication by the swiss national bank our analysis of central bank communication encompasses monetary policy announcements speeches and interviews we examine the reactions of the currency market the bond market and the stock exchange the evidence suggests that speeches and interviews along with monetary policy announcements engender a significant price reaction this paper sheds light on the relevance of communications other than monetary policy announcements

monetary policy predictability in the euro area an international comparison we evaluate the ability of market participants to anticipate monetary policy decisions in 14 countries first by looking at both the magnitude and volatility of changes in the money market rates we show that the days of policy meetings are special days for financial markets second we find that the predictability of federal reserve fed bank of england and european central bank ecb is fully comparable finally an econometric analysis of the ability of market participants to incorporate in the current short term interest rates the expected policy changes shows that in the euro area and in other countries policy decisions are anticipated well in advance

the role of the reference technology in measuring productive efficiency after a twenty year lull the measurement of productive efficiency is enjoying a revival in particular the index of efficiency developed by debreu i95i and later utilised by farrell i957 has received considerable attention these measures have been used fairly extensively in empirical work in both the operations research and economic literature these types of indexes have also appeared in the growing literature on testing for regularity conditions in production e g in afriat i972 diewert and parkan i983 and varian 1984 since the farrell type measure is the focus in this paper a brief review is useful in the farrell framework overall efficiency oe can be decomposed into two multiplicative components allocative efficiency ae and technical efficiency te

market based measures of monetary policy expectations a number of recent articles have used different financial market instruments to measure near term expectations of the federal funds rate and the high frequency changes in these instruments around federal open market committee announcements to measure monetary policy shocks this article evaluates the empirical success of a variety of financial market instruments in predicting the future path of monetary policy all of the instruments we consider provide forecasts that are clearly superior to those of standard time series models at all of the horizons considered among financial market instruments we find that federal funds futures dominate all the other securities in forecasting monetary policy at horizons out to six months for longer horizons the predictive power of many of the instruments we consider is very similar in addition we present evidence that monetary policy shocks computed using the current month federal funds futures contract are influenced by changes in the timing of policy actions tha

large shocks in the volatility of the dow jones industrial average index 1928 2013 we determine the events that cause large shocks in volatility of the djia index over the period 1928 2013 using a new semi parametric test based on conditional heteroscedasticity models we find that these large shocks can be associated with particular events financial crashes elections wars monetary policies etc we show that some shocks are not identified as extraordinary movements by the investors due to their occurring during high volatility episodes especially the 1929 1934 1937 1938 and 2007 2011 periods