are all central bank interventions created equal an empirical investigation abstract this study investigates the relationship between central bank interventions and technical trading rule profitability in the spot foreign exchange market because interventions are not necessarily exogenous events we analyze the relationships between interventions by the g 3 central banks financial market conditions changes in monetary policy and technical trading profitability by considering announced unannounced unilateral and coordinated interventions separately we provide more insight into the interrelationships between these factors than previous studies we find that the level of technical trading profits and market uncertainty increase preceding and remain high during interventions especially announced and coordinated but decrease afterward a preliminary investigation of the possible role of a time varying risk premium around interventions cannot be rejected

where do we go from here 2 real wages effective demand and economic development a central purpose of this paper is to argue for a more active role for historical analysis in filling out and extending classical theory firstly what is required is a more modern vision of capitalist growth which would not only include such classical variables as the rate of profit and accumulation but also take into account the changing level and composition of the standard of living and how this interrelates with the compositional evolution of the industrial structure including the effect of new technology and changes in industrial organisation such as the development of new industries new products and new systems of marketing the second important need is for a more differentiated class analysis with which to study the growth process this would require a detailed consideration of the historical stratification and re stratification of the working class and would incorporate an analysis of the impact of and the interaction between the evolving industrial and political organisation of labour state policy collective bargaining the restructuring of labour resulting from changing power relations in the market and in the labour process changing technology and industrial organisation these processes have particular relevance in the present context for inter and intra class distribution of income and how this relates to the level and structuring of demand the paper consists of five main sections the first considers representative attempts to incorporate historical processes into theory the second considers the development in the structure of consumption in britain since 1860 the third links changing consumption to the standard of living the fourth examines the relationship between the standard of life and institutional developments in wage determination and in welfare provision and the fifth is a brief attempt to relate these factors to economic development

methodical madness technical analysis and the irrationality of exchange rate forecasts substantial empirical research documents that exchange rate forecasts are not formed rationally this paper identifies a common technical trading signal the head and shoulders pattern as a potential source of departures from rationality in exchange rate forecasts forecasts based on this pattern are evaluated for daily dollar exchange rates over 1973 to 1994 using two criteria for rationality profitability and efficiency resulting profits replicable in real time are tested for statistical significance using a bootstrap technique we find that the rule is profitable but not efficient since it is dominated by simpler trading rules

el salvador s agricultural sector macroeconomic policy agrarian change and the environment abstract this paper argues that current agricultural policy in el salvador is failing to further the goals of macroeconomic growth and stability sustainable livelihood security and environmental sustainability macroeconomic policy has turned relative prices sharply against agriculture the plight of the rural poor has been exacerbated by continuing inequities in the agrarian structure the breakdown in rural livelihoods and limited access to land and other assets is accelerating environmental degradation suggested alternative policies such as more favorable price policies agrarian reform and environmental restoration would promote sustainable development by capitalizing on the complementarity among growth poverty reduction and consolidation of peace

monetary policy actions intervention and exchange rates a reexamination of the empirical relationships using federal funds rate target data the authors reexamine the relationships among federal reserve monetary policy actions u s interventions in currency markets and exchange rates using an alternative measure of monetary policy actions the federal reserve s federal funds rate target they find that exchange rates generally respond immediately to u s monetary policy actions and that these responses are usually consistent with the overshooting hypothesis the authors also find evidence of signaling and leaning against the wind u s intervention policies over the sample however controlling for such interventions do not alter their estimates of exchange rate responses to federal funds rate target changes copyright 1998 by university of chicago press

macroeconomic policy and the salvadoran peace accords abstract we analyze the relationship between macroeconomic policies and the implementation of the peace agreement that ended civil war in el salvador we review recent stabilization and adjustment policies and identify potential impediments to sustained growth we observe that the agreement mandated thorough going democratization of political institutions but its socioeconomic reforms promised little more than excombatants reintegration into civilian life the poverty and inequality impelling the war were not addressed we analyze the political bargaining governing the agreement s uneven implementation and conclude that the macroeconomic policy environment of austerity rather than resource constraints per se impeded its timely implementation

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

the accuracy of reports of foreign exchange intervention abstract this paper considers both qualitative and quantitative evidence on the accuracy of press reports of foreign exchange intervention by the federal reserve between january 1985 and december 1989 the evidence shows that the likelihood of intervention being reported given that it actually occurred was 72 per cent and that the likelihood of intervention actually occurring given that it was reported was 88 per cent interventions which were reported were larger on average than those which were not reported and this difference is statistically significant multinomial logit analysis also demonstrates that the likelihood of intervention being reported increased with the size of the intervention jel f31

challenges and opportunities in el salvador s financial sector abstract the formal financial sector has expanded rapidly in postwar el salvador encouraged by premature financial liberalization and a remittance windfall exceeding commercial banks capacities to lend prudently the counterpart of this spurious financial deepening is a shallow financial market for smaller firms which reflects both difficult real conditions for small urban and agricultural enterprises and the unfortunate effects of the credit channeling model characterizing development banks and most nongovernment organization projects this model discourages the growth of small scale institutions that can fund themselves from local resources and limits the ability of small producers to accumulate financial savings

exchange rate return predictability and the adaptive markets hypothesis evidence from major foreign exchange rates this study examines return predictability of major foreign exchange rates by testing for martingale difference hypothesis mdh using daily and weekly nominal exchange rates from 1975 to 2009 we use alternative mdh tests for linear and nonlinear dependence which include wild bootstrap automatic variance ratio test generalized spectral test and consistent tests we evaluate time varying return predictability by applying these tests with fixed length moving sub sample windows of two years while exchange rate returns are found to be unpredictable most of times we do observe episodes of statistically significant return predictability they are associated with coordinated central bank interventions and the subprime mortgage crisis in 2007 this finding suggests that return predictability of foreign exchange rates occurs from time to time depending on changing market conditions which is consistent with the implications of the adaptive markets hypothesis

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

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

time varying risk premia volatility and technical trading rule profits evidence from foreign currency futures markets abstract this paper re examines the efficiency of foreign currency futures markets by evaluating the role of time varying risk premia and volatility in explaining technical trading rule profits the results show that large parts of the technical rule profits can be explained by the time varying risk premia estimated from a general model for the conditional capm the bootstrap distributions for the profits under the null model average one third to one half of the actual profits and enclose the actual profits well within the 90 confidence intervals time varying conditional volatility explains an additional 10 of the profits

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

identifying the efficacy of central bank interventions evidence from australia and japan abstract using a model incorporating the endogenous relationship between exchange rates and intervention we show how a change in central bank policy can be used as an identification assumption estimating this model with simulated gmm for daily data from australia and japan we find that a us 100 million purchase appreciates the australian dollar by 1 3 1 8 but the yen by just 0 2 almost all of the impact of an intervention occurs during the day it is conducted and we confirm that central banks typically lean against the wind

the determinants of foreign exchange intervention by central banks evidence from australia abstract intervention by the reserve bank of australia on foreign exchange markets from 1983 to 1997 is conjectured to have been determined by exchange rate trend correction exchange rate volatility smoothing the us and australian overnight interest rate differentials profitability and foreign currency reserve inventory considerations using probit and friction models we show that these factors were significant influences on intervention behavior consistent with the constraint of intervening only when a clear trend is apparent we find that above average measures of deviations from trend and of volatility muted the response of the reserve bank

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

income distribution and macroeconomics this paper analyzes the role of wealth distribution in macroeconomics through investment in human capital it is shown that in the presence of credit markets imperfections and indivisibilities in investment in human capital the initial distribution of wealth affects aggregate output and investment both in the short and in the long run as there are multiple steady states this paper therefore provides an additional explanation for the persistent differences in per capita output across countries furthermore the paper shows that cross country differences in macroeconomic adjustment to aggregate shocks can be attributed among other factors to differences in wealth and income distribution across countries

foreign exchange market intervention in two small open economies the canadian and australian experience abstract we examine intervention by the bank of canada and the reserve bank of australia for daily data from 1989 to 1998 both central banks intervene in response to excessive exchange rate volatility and uncertainty volatility is the implied volatility of foreign currency futures options uncertainty is the kurtosis of the implied risk neutral probability density functions we also examine the impact of inflation targets unlike other studies we also consider commodity futures prices these turn out to help explain the effectiveness of intervention central bank intervention was largely unsuccessful in both countries though volatility and kurtosis were modestly affected

lessons from the evolution of foreign exchange trading strategies abstract the adaptive markets hypothesis posits that trading strategies evolve as traders adapt their behavior to changing circumstances this paper studies the evolution of trading strategies for a hypothetical trader who chooses portfolios from foreign exchange forex technical rules in major and emerging markets the carry trade and us equities the results show that a backtesting procedure to choose optimal portfolios improves upon the performance of nonadaptive rules we also find that forex trading alone dramatically outperforms the s p 500 with much larger sharpe ratios over the whole sample but there is little gain to coordinating forex and equity strategies which explains why practitioners consider these tools separately forex trading returns dip significantly in the 1990s but recover by the end of the decade and have been markedly superior to an equity position since 1998 overall trading rule returns still exist in forex markets with substantial stability in the types of rules though they have migrated to emerging markets to a considerable degree

flexible inflation targets forex interventions and exchange rate volatility in emerging countries abstract emerging economies with inflation targets it face a dilemma between fulfilling the theoretical conditions of strict it which imply a fully flexible exchange rate or applying a flexible it which entails a de facto managed floating exchange rate with foreign exchange forex interventions to moderate exchange rate volatility using a panel data model for 37 countries we find that although it lead to higher exchange rate instability than alternative regimes forex interventions in some it countries have been more effective to lower volatility than in non it countries which may justify the use of flexible it by policymakers

do euro exchange rates follow a martingale some out of sample evidence abstract traditional autocorrelation and variance ratio tests are based on serial uncorrelatedness rather than martingale difference as such they do not capture potential nonlinearity in mean which could lead to misleading inferences in favor of the martingale hypothesis this paper employs various parametric and nonparametric nonlinear models as well as several model comparison criteria to examine the potential martingale behavior of euro exchange rates in the context of out of sample forecasts the overall evidence indicates that while martingale behavior cannot be rejected for euro exchange rates with major currencies such as the japanese yen british pound and us dollar there is nonlinear predictability in terms of economic criteria with respect to several smaller currencies

external assistance and the peace process in el salvador abstract external assistance has played a critical role in the salvadoran peace process yet the priorities of the donors have often diverged from those of the peace accords moreover several major external assistance actors notably the international financial institutions have failed to exercise peace conditionality they have not used formal performance criteria or informal policy dialogue to encourage the timely implementation of high priority peace programs and the mobilization of greater domestic resources for this purpose these institutions have recently broadened their mandates to encompass military expenditure reduction and good governance while these concerns are particularly germane in countries emerging from civil war the case of el salvador demonstrates that they have yet to be fully incorporated into actual practice

a friction model of daily bundesbank and federal reserve intervention abstract this paper takes a novel approach to derive a central bank intervention reaction function a garch model for exchange rates is amended to allow interventions to have an effect on both the mean and the variance of exchange rate returns an intervention reaction function is obtained by combining the model with a loss function for the central bank estimation results for the implied friction model reproduce the familiar leaning against the wind policy by the bundesbank and the federal reserve furthermore the central banks appear to have reacted to increases in the conditional variance of daily dm returns

is there evidence of fear of appreciation in china s foreign exchange market intervention abstractusing the data after the exchange rate regime reform in july 2005 this paper systematically studied the issue whether china has conducted fear of appreciation asymmetric intervention th

inequality as a cause of environmental degradation abstract this paper advances two hypotheses first the extent of an environmentally degrading economic activity is a function of the balance of power between the winners who derive net benefits from the activity and the losers who bear net costs second greater inequalities of power and wealth lead all else equal to more environmental degradation

the profitability of us intervention in the foreign exchange markets abstract using a formula for intervention profits in which profitability measured as of date t depends on how well intervention operations predict ex post deviations from interest parity this paper shows that us intervention since the beginning of generalized floating in 1973 has earned profits for the us monetary authorities fundamental explanations for the profitability of us intervention are difficult to isolate but statistical tests suggest that it is unlikely the profits are merely the outcome of chance or a normal return to bearing time invariant risk

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

adjustment toward peace an introduction abstract the recent experience of el salvador offers valuable lessons for economic policy in post conflictual transitions in the wake of a negotiated settlement to a civil war economic policy must support the adjustment toward peace in the short run policy must promote not only macroeconomic stabilization but also political stabilization this requires the mobilization of resources and the maintenance of political will for implementation of immediate peace related needs such as the reintegration of excombatants into civil society and the strengthening of democratic institutions long run policy objectives must encompass not only the attainment of macroeconomic balances but also equity that is balance in the distribution of income and wealth balanced investment in human natural and physical capital and democratization in the broad sense of a more balanced distribution of power in the end policies which fail to build on the crucial complementarities between peace and development are unlikely to achieve either goal

technical analysis and the effectiveness of central bank intervention abstract using daily data on foreign exchange interventions of both the bundesbank and the fed we provide further evidence that central banks earn profits with interventions and that technical trading rules are unusually profitable on days on which interventions take place we argue that what lies at the root of these seemingly contradictory results is that a intervention profits and trading rule profitability are measured over different horizons and b after interventions exchange rates tend to move contrary to central banks intentions in the short run but in agreement with their intentions in the long run

combining mean reversion and momentum trading strategies in foreign exchange markets abstract the literature on equity markets documents the existence of mean reversion and momentum phenomena researchers in foreign exchange markets find that foreign exchange rates also display behaviors akin to momentum and mean reversion this paper implements a trading strategy combining mean reversion and momentum in foreign exchange markets the strategy was originally designed for equity markets but it also generates abnormal returns when applied to uncovered interest parity deviations for five countries i find that the pattern for the positions thus created in the foreign exchange markets is qualitatively similar to that found in the equity markets quantitatively this strategy performs better in foreign exchange markets than in equity markets also it outperforms traditional foreign exchange trading strategies such as carry trades and moving average rules

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

neo liberalism and new labour policy economic performance historical comparisons and future prospects the paper analyses19760 70s inflation the replacement of keynesian with neo liberal economic policy and the post 1979 decline in inflation it is shown that the fall in inflation is explained by trends in import prices rather than by switches in economic policy however new labour s conversion to neo liberalism means that no alternative to it is on political offer despite returns to pre keynesian policy making the success of which will depend on price policies based on an understanding of the institutional roots of inflation

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

foreign exchange market interventions and the exchange rate in the long run this article examines whether foreign exchange market interventions conducted by the bank of japan are important for the dollar yen exchange rate in the long run we rely on a re examination of the empirical performance of a monetary exchange rate model this is basically not a new topic however we focus on two new questions first does the consideration of periods of massive interventions in the foreign exchange market uncover a potential long run relationship between the exchange rate and its fundamentals second do forex interventions support the adjustment towards a long run equilibrium value our results suggest that taking periods of interventions into account within a monetary model does improve the goodness of fit of an identified long run relationship to a significant degree furthermore forex interventions increase the speed of adjustment towards long run equilibrium in some periods particularly in periods of coordinated forex interventions our results indicate that only coordinated inter

can markov switching models predict excess foreign exchange returns abstract this paper merges the literature on technical trading rules with the literature on markov switching to develop economically useful trading rules the markov models out of sample excess returns modestly exceed those of standard technical rules and are profitable over the most recent subsample a portfolio of markov and standard technical rules outperforms either set individually on a risk adjusted basis the markov rules high excess returns contrast with mixed performance on statistical tests of forecast accuracy there is no clear source for the trends but permitting the mean to depend on higher moments of the exchange rate distribution modestly increases returns

the impact of fx central bank intervention in a noise trading framework abstract in this paper we analyse the effectiveness of the direct central bank interventions using a new effectiveness criterion to this aim we investigate the effects of central bank interventions cbi in a noise trading model with chartists and fundamentalists we first estimate a model in which chartists extrapolate past returns and fundamentalists forecast a mean reverting dynamics of the exchange rate towards a fundamental value then we investigate the role of central bank interventions for explaining the switching properties between the two types of agents we find evidence that in the medium run interventions increase the proportion of fundamentalists and therefore exert some stabilizing influence on the exchange rate

growth is good for whom when how economic growth and poverty reduction in exceptional cases summary economic growth and liberal economic policies often help the poor but what about the numerous cases in which they do not this article analyzes two types of cases those in which income growth of the poor was significantly lower than expectations negative exceptions and those in which income growth of the poor significantly exceeded expectations positive exceptions insights from these cases inform our theoretical understanding of poverty reduction in addition this article contributes a typology of strategies used in these cases including alternative pathways to economic growth and neoliberal prescriptions for poverty reduction

the cost of a central bank leaning against a random walk abstract using a stochastic model we show that a central bank is expected to suffer a loss when it temporarily affects the exchange rate by sterilized intervention against a random walk we also demonstrate that the methodology used in several studies of the profitability of official central bank intervention biases their results towards finding positive profits this bias created by only observing periods where cumulative intervention sums to zero accounts for the seemingly contradictory empirical results of several intervention profitability studies

intervention in the mark dollar market the authorities reaction function abstract this paper investigates the intervention behavior of the deutsche bundesbank in the dollar dm market over the period 1974 to 1981 an intervention reaction model is developed which stresses the conditioning role of perceived exchange rate uncertainty the most important findings from non linear estimates are i an increase in perceived exchange rate risk shifts the bundesbank s trade off between money and exchange rate control in favor of the former aim probably due to risk aversion of the managers of the foreign department ii the bank tries to counter exchange speculation by compressing the expected risk premium and iii the bank does not completely sterilize

wages economic development and the customary standard of life this paper examines empirically the evolution of the customary standard of life and how this relates to real wages and economic development its starting point is sraffa s reintroduction of the classical notion of wages as the cost of reproducing labour so that they are necessarily a charge on production however when considering a production system generating a surplus sraffa offered no explanation of how the surplus might be realised and distributed rather he concentrated on the choice of technique as the profit share varied from 0 to 1 his approach was one of taking a snapshot of a productive system at a point in time in contrast this paper explores the trend in wages in the uk over the past 150 years and the evolving level and composition of what became the social necessities of worker consumption i e the customary standard of life in this process four dynamically interacting processes can be identified i a progressive increase in the productive potential of the system ii the diffusion of a greater quantity and varieties of consumer goods the growth of property ownership by consumers and their use of credit in a cumulative improvement in their customary standard of life iii the consolidation of the customary standard of life into real wages by collective bargaining and iv diffusion of improved living standards by an extension of collective bargaining coverage to include groups previously excluded and the growth of the welfare state in which the failure to achieve the customary standard of life defines poverty and triggers policy designed to alleviate it the central role played by the customary standard of life in driving real wages means that the inputs of labour power into commodity production can be represented by the commodity composition of the customary standard of life in sraffa style analyses in this the successive cross sections in the historical flow of economic development showing the commodity flows into and out of production will be ever changing like the still frames in a moving picture show moreover such a historical approach rules out the possibility that at any time changes in the rate of profit will precipitate the switching of methods of production past choices of techniques are historically embedded in the capital stock the composition of which is modified by new investment and the scrapping of old as it wears out becomes technically outmoded and or demand for its products declines nevertheless changes in the distribution of income have consequences for the future path of economic and social development and what this might be is arguably the most useful area for economic and social research copyright oxford university press

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

central bank intervention and trading rule profits in foreign exchange markets abstract moving average trading rules are utilized in both futures and spot foreign currency markets to show that significant positive profits can be earned in four of five currencies examined the results are consistent for both in sample and forward simulation tests regression results demonstrate that central bank intervention is strongly associated with the profitability of trading returns for the three major currencies dm yen and pound and partially explains returns for the sf and cd consistent with conjectures in previous studies that news concerning intervention tends to be revealed over weekends we find that moving average trading rule returns are significantly positive on fridays and mondays and not significantly different from zero in the middle of the week

modeling heteroscedasticity in daily foreign exchange rates this article estimates autoregressive conditionally heteroscedastic arch and generalized arch garch models for five foreign currencies using 10 years of daily data a variety of arch and garch specifications a number of nonnormal error densities and a comprehensive set of diagnostic checks it finds that arch and garch models can usually remove all heteroscedasticity in price changes in all five currencies goodness of fit diagnostics indicate that exponential garch with certain nonnormal distributions fits the canadian dollar extremely well and the swiss franc and the deutsche mark reasonably well only one nonnormal distribution fits the japanese yen reasonably well none fit the british pound

technical analysis and central bank intervention abstract this paper extends genetic programming techniques to show that us foreign exchange intervention information improves technical trading rules profitability for two of four exchange rates over part of the out of sample period rules trade contrary to intervention and are unusually profitable on days prior to intervention indicating that intervention is intended to halt predictable trends intervention seems to be more successful in checking such trends in the out of sample 1981 98 period than in the in sample 1975 80 period any improvement in performance results from more precise estimation of the relationship between current and past exchange rates rather than from information about contemporaneous intervention

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

central bank intervention and exchange rate volatility abstract this paper explores the effects of foreign exchange intervention by central banks on the behavior of exchange rates the g 3 central banks have undertaken an unprecedented number of both coordinated and unilateral intervention operations in the last 10 years existing empirical evidence on the effectiveness of intervention is mixed studies using data from the 1970s suggest that intervention operations that do not affect the monetary base have at most a short lived influence on exchange rates but more recent studies indicate that the intervention operations that followed the plaza agreement influenced both the level and variance of exchange rates this paper examines the effects of us german and japanese monetary and intervention policies on dollar mark and dollar yen exchange rate volatility over the 1977 1994 period the results indicate that intervention operations generally increase exchange rate volatility this is particularly true of secret interventions which are those undertaken by central banks without notification of the public overt interventions in the mid 1980s appear to have reduced exchange rate volatility but in other periods and for the 1977 1994 period as a whole central bank intervention is associated with greater exchange rate volatility

do central banks lose on foreign exchange intervention a review article abstract estimates of central bank intervention losses or profits vary widely some estimates find substantial losses others profits in most cases estimated profits are not risk adjusted and risk adjustment can have large effects furthermore profit estimates involve variables integrated of order one and because of this test statistics may have nonstandard distributions few studies take this into account estimates of risk adjusted profits for the us fed and the swedish riksbank with allowances for possible nonstandard distributions suggest that neither made losses and might have made significant profits

fed intervention dollar appreciation and systematic risk abstract in a four factor asset pricing model estimated on daily data fed intervention significantly affects betas of surprises in the market return expected inflation rate yield curve and corporate bond risk premium fed foreign currency sales cause economically and statistically significant increases in the systematic risk premium in appreciation and thus in the dollar s expected appreciation rate the direction the fed desires and consistent with the signaling but not the portfolio balance channel intervention s effects on actual appreciation are less reliable they depend on unpredictable risk factor realizations even successful intervention to strengthen the dollar may be costly by increasing the dollar s systematic risk intervention reduces the attractiveness of u s relative to foreign investments further uncertainty about future fed interventions may induce resource misallocation ceteris paribus investors find it harder to estimate risk adjusted discount rates and forecast the home currency value of cash flows

weak form efficiency in currency markets many past studies have found that currencies trend so technical trading rules produced statistically and economically significant profits in other words foreign exchange markets were weak form inefficient the study reported here reexamined this phenomenon with use of a new database of currency futures for 1975 2006 that includes old and newly liquid currencies the findings from the recent data are contradictory the profitability of trend following eroded for major currencies and their associated cross exchange rates around the mid 1990s newly liquid currencies after 2000 do trend however just as major currencies did in earlier years the evidence is consistent with early weak form inefficiency followed by vanishing trends as traders learn and adapt their strategies

the adaptive markets hypothesis evidence from the foreign exchange market we analyze the intertemporal stability of excess returns to technical trading rules in the foreign exchange market by conducting true out of sample tests on previously studied rules the excess returns of the 1970s and 1980s were genuine and not just the result of data mining but these profit opportunities had disappeared by the early 1990s for filter and moving average rules returns to less studied rules also have declined but have probably not completely disappeared high volatility prevents precise estimation of mean returns these regularities are consistent with the adaptive markets hypothesis lo 2004 but not with the efficient markets hypothesis

are forign exchange intervention and monetary policy related and does it really matter the relationship between foreign exchange intervention and monetary policy underlies the question of whether sterilized interventions can affect the exchange rate in this article the author examines this relationship using data on u s foreign exchange interventions from 1985 to 1990 recently made publicly available she examines whether interventions could be viewed as signaling changes in future monetary policy variables the author also considers whether changes in monetary policy may induce interventions in an effort by central bankers to lean against the wind of exchange rate movements interestingly she finds evidence both that interventions help predict monetary policy variables and that monetary variables help predict interventions copyright 1995 by university of chicago press

is technical analysis in the foreign exchange market profitable a genetic programming approach using genetic programming techniques to find technical trading rules we find strong evidence of economically significant out of sample excess returns to those rules for each of six exchange rates over the period 1981 1995 further when the dollar deutsche mark rules are allowed to determine trades in the other markets there is significant improvement in performance in all cases except for the deutsche mark yen betas calculated for the returns according to various benchmark portfolios provide no evidence that the returns to these rules are compensation for bearing systematic risk bootstrapping results on the dollar deutsche mark indicate that the trading rules detect patterns in the data that are not captured by standard statistical models

private investment and democracy in latin america abstract this paper argues that the deterioration of latin american private investment in the 1980s may have been largely due to debt difficulties and not the concurrent wave of democratization after reviewing why more political systems may actually be conducive to investment we test an investment function for seven countries over 1973 1986 that includes traditional economic factors two debt measures and several political variables including measures of democracy worker power international monetary fund support and risk the results are quite congenial for our hypothesis under several reasonable alternative specifications for the economic determinants our democracy measure is positively signed and significant

temporal patterns in foreign exchange returns and options although the foreign exchange market is believed to be one of the most efficient financial markets in the world there is significant evidence that technical analysis is profitable in this market in this study we investigate the ability of information from the options market to supplement the commonly used information on past prices to predict temporal patterns in foreign exchange returns we find that information from the options market improves the performance of technical trading strategies strategies using information from at the money options were more consistently profitable than the most commonly used strategies based on only historical spot exchange rates past prices our results hold out of sample as well as in the late nineties a period when few sources of information have proven reliable consequently options appear to contain valuable information regarding future spot exchange rate movements

excess returns and official intervention canada 1952 1960 research shows that filter rules in foreign exchange markets yield higher than normal profits other work indicates that central banks lean against the wind in those markets and some claim that this intervention generates profits for private speculators this study which uses daily data for exchange rates and official re serves indicates that excess profits from filter rules between the u s and canadian dollar during the 1950s are the result of intervention by the bank of canada

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