the internationalisation of stock markets and the abolition of u k exchange control this paper aims to assess the impact of the abolition of u k exchange control on the degre of integration of u k and overseas stock markets using cointegration techniques we find that although there is no significant increase in the correlation of short run stock market returns for the united kingdom and certain overseas markets post 1979 there does appear to be a marked increase in the degree to which these markets move together in the long run after this date there appears to be no long run gain from diversification since cointegration of two variables implies that at least one of them can be used to help forecast the other our findings also imply the inefficiency of a number of stock markets

dynamic linkages among equity markets local versus basket currencies this article compares the stability of interrelationships among nine national equity markets by employing basket currencies versus individual base currencies to measure rates of return we show that the average correlations of equity indexes based on basket currencies are much lower than the average correlations of equity indexes based on individual home base currencies additionally empirical directed graph results from using basket currencies are more consistent with each other than the results from using different individual currencies we conclude that basket currencies provide more robust results for studying equity market comovements than individual currencies by implication studies on equity market interrelationships including studies on potential financial contagion between equity markets should use basket currencies to avoid currency dependent results

contagion around the october 1987 stock market crash abstract this study investigates financial contagion among seven international stock markets around the october 19 1987 crash building on a recent advance in vector autoregression analysis by swanson n granger c w j 1997 impulse response functions based on a causal approach to residual orthogonalization in vector autoregression journal of the american statistical association 92 357 367 data determined historical decompositions are conducted to provide a day by day picture of price fluctuation transmission which is crucial to explore the financial contagion pattern characterized by rich dynamics the results clearly show that the crash originated in the us market and that an upward movement in the japanese market after the crash helped the recovery in the us market which has not yet been empirically documented in the literature

estimating dynamics of us demand for major fossil fuels long run demand relationships among fossil fuels in the united states were investigated using annual data covering 1918 through 2013 due to the endogeneity problem among the variables of interest as indicated by the findings from the granger causality test weak exogeneity test and directed acyclic graphs the use of the seemingly unrelated regression sur method was deemed appropriate the sur model demonstrated that there was low level of substitutability among fossil fuels but the small magnitude of the estimated coefficient indicates that natural gas oil and coal are more properly classified as independent goods than as substitutes of each other within the us market income elasticities for all three fossil fuels indicate that they are normal goods several external shocks have significant impact on demand for each of the fossil fuels slightly lower explanatory power of oil demand equation may be explained with the fact that the model did not include us oil imports although the us economy has been dependent to some degree on imported oil

one security many markets determining the contributions to price discovery when homogeneous or closely linked securities trade in multiple markets it is often of interest to determine where price discovery the incorporation of new information occurs this article suggests an econometric approach based on an implicit unobservable efficient price common to all markets the information share associated with a particular market is defined as the proportional contribution of that market s innovations to the innovation in the common efficient price applied to quotes for the thirty dow stocks the technique suggests that the preponderance of the price discovery takes place at the new york stock exchange nyse a median 92 7 percent information share although most of the classic paradigms in market microstructure concern a security that trades in a single centralized market such situations are becoming increasingly rare in practice fragmentation the dispersal of trading in a security to multiple sites has emerged as a dominant institutional trend this process is of concern to financial economists and regulators because price information and price discovery the impounding of new information into the security price arguably the most important products of a security market have many attributes of public goods as the process of fragmentation accelerates it may be important to determine where the price information and price discovery are being produced 1 this paper suggests a practical econometric approach to this problem the technique is illustrated with an application to u s equity markets many stocks listed on the new york stock exchange nyse trade concurrently on the regional exchanges and the national association of securities dealers national market system nasd nms since a share of ibm stock is the same security whether purchased on the midwest or pacific exchange this is a particularly clear instance of multiple markets nevertheless the expres

when do long run identifying restrictions give reliable results many recent articles have identified behavioral disturbances in vector autoregressions by imposing restrictions on the long run effects of shocks this article demonstrates that this approach will be unreliable unless the underlying economy satisfies three types of strong restrictions although many aspects of these issues have been raised before this article draws out and illustrates the implications for inferences under the long run scheme furthermore it provides strategies for dealing with the problems

is the export led growth hypothesis valid for canada empirical evidence linking exports to economic growth has been mixed and inconclusive this study re examines the export led growth elg hypothesis for canada by testing for granger causality from exports to national output growth using vector error correction models vecm and the augmented vector autoregressive var methodology developed in toda and yamamoto 1995 application of recent developments in time series modelling and the inclusion of relevant variables omitted in previous studies help to clarify the contradictory results from prior studies on the canadian economy the empirical results suggest that a long run steady state exists among the model s six variables and that granger causal flow is unidirectional from real exports to real gdp jel classification f43 c32 est ce que l hypothese de la croissance engendree par les exportations est valide pour le canada les resultats empiriques des etudes tentant de montrer le lien entre les exportations et la croissance economique sont mixtes et ne contiennent pas de resultats concluants cet article re examine l hypothese dans le cas du canada en testant la causalitea la granger pour les exportations et la croissance du produit national en utilisant les modeles vecm et la methodologie var developpes par toda et yamamoto 1995 l application de certains developpements recents dans l analyse des series chronologiques et l inclusion de variables pertinentes omises dans les etudes anterieures aident a mettre de l ordre dans les resultats contradictoires des etudes anterieures portant sur l economie canadienne les resultats empiriques suggerent qu un regime permanent existe entre les six variables du modele et que la causalitea la granger est unidirectionnelle des exportations reelles vers le pib reel

asymmetric volatility spillovers between crude oil and international financial markets abstract in this paper we examine asymmetric volatility spillovers between oil and international stock markets in a vector autoregression framework using a directed acyclic graph dag technique we provide evidence that bad total volatility spillovers dominate the system and change over time suggesting that a pessimistic mood and uninformed traders who tend to increase volatility dominate in markets positive spillovers of oil markets dominated from 2006 to mid 2009 but reversed after mid 2009 moreover the spillovers from good volatilities in oil markets to bad volatilities in global stock markets were significantly positive during the economic recovery period the recent important economic and political events have influenced asymmetries in volatility spillovers

international transmission of inflation among g 7 countries a data determined var analysis abstract we investigate the international transmission of inflation among g 7 countries using data determined vector autoregression analysis as advocated by swanson and granger swanson n granger c 1997 impulse response functions based on a causal approach to residual orthogonalization in vector autoregressions journal of the american statistical association 92 357 367 over the period 1973 2003 we find that unexpected changes in us inflation have large effects on inflation in other countries although they are not always the dominant international factor similarly shocks to some other countries also have a statistically and economically significant influence on us inflation moreover our evidence indicates that us inflation has become less vulnerable to foreign shocks since the early 1990s mainly because of the diminished influence from germany and france

the international crash of october 1987 causality tests the paper analyzes lead lag relationships for six major stock market indexes new york s p 500 tokyo nikkei london ft 30 hong kong hang seng singapore straits times and australia all ordinaries for time periods before during and after the october 1987 market crash unidirectional and bidirectional causality tests are conducted by means of the granger methodology practically no lead lag relationships are found for the pre crash and post crash periods however important feedback relationships and unidirectional causality are detected for the month of the crash there is also an increase in contemporaneous causality during and after the month of the crash in general our findings suggest that the october 1987 market crash probably was an international crisis of the equity markets and that it might have begun simultaneously in all the national stock markets

deficits and intergenerational welfare in open economies this paper deals with public debt in open economies extending diamond s overlapping generations model to a small open economy as well as an international equilibrium of two large economies it focuses on the intergenerational welfare redistributions caused by an increase in public debt triggered by a temporary government budget deficit and shows how these redistributions differ in open and closed economies the interplay between the deficits in the government budget and the current account is also analyzed it is shown how a single period with a government deficit can be followed by a sequence of periods with a deficit in the current account

considering macroeconomic indicators in the food before fuel nexus abstract a structural vector autoregression svar model along with a direct acyclic graph is employed to decompose how supply demand structural shocks affect food and fuel markets the results support the hypothesis that fundamental market forces of demand and supply are the main drivers of food price volatility increased biofuel production may cause short run food price increases but not long run price shifts decentralized freely operating markets will mitigate the persistence of any price shocks and restore prices to their long run trends the main policy implications are that oil gasoline and ethanol market shocks do not spillover into grain prices which indicates no long run food before fuel issue in the short run grain prices can spike due to market shocks so programs designed to blunt these price spikes may be warranted

market overreaction and investment strategies we investigated the overreaction of the korean market in response to shocks in the us stock market and analysed the dynamic relationship between these two markets since 1996 we found that the kospi 200 index futures overreacted to the s p 500 index returns during the period from 2000 to 2009 when the korean market was in its growth stage as the korean market matured and the kospi 200 overnight futures were introduced in 2009 the overreaction disappeared when investors employed the kelly model or value at risk to exploit the overreaction their trading strategies produced significant profits during the growth stage even after considering transaction costs and risk but the profits attenuated once the overnight futures market was launched in 2009

international stock market linkages evidence from the pre and post october 1987 period abstract this paper uses recent developments in the theory of cointegration to provide new methods of testing the linkage and dynamic interactions among stock market movements our findings are in sharp contrast with previous research which discovered strong interdependence among national stock markets prior to october 1987 for the post october 1987 period however our results show that the degree of international co movements among stock price indices has increased substantially with the nikkei index the only exception furthermore the us stock market is found to have a considerable impact on the french german and uk markets in the post crash period we also find the response of the french german and uk markets to us stock market innovations to be consistent with the view of cross border informationally efficient stock markets finally we find the japanese equity market performance to have no links with both the us stock market and the stock markets in france germany and uk during the pre and post october crash period

price dynamics among u s electricity spot markets combining recent advances in causal flows with time series analysis relationships among 11 u s spot market electricity prices are examined results suggest that the relationships among the markets vary by time frame in contemporaneous time the western markets are separated from the eastern markets and the electricity reliability council of texas at longer time frames these separations disappear even though electricity transmission between the regions is limited it appears the relationships among markets are not only a function of physical assets such as transmissions lines among markets but by similar and dissimilar institutional arrangements among the markets

fiscal policy and the real exchange rate under risk abstract this paper examines the effect of fiscal expansions on the real exchange rate in a small open economy where home and foreign assets are imperfect substitutes there is an hypothesis raised by sachs and wyplosz 1984 dornbusch and fischer 1986 and others that risk and imperfect substitutability of assets can explain why fiscal expansions sometimes create real depreciations unlike the standard mundell fleming result this paper examines the issue within an optimizing framework where risk and imperfect capital mobility are explicitly modeled the paper comes up with the conclusion that even when assets are imperfect substitutes and a fiscal expansion crowds out investment and consumption this crowding out is not full and the real exchange rate always appreciates

the current account in the macroeconomic adjustment process macroeconomic adjustments to changes in the economic environment are to a large extent conditioned by the intertemporal choices of economic agents when agents face an intertemporal budget constraint a decision to alter current indebtedness implies changes in future consumption possibilities and will be based on expectations of the entire future path of key variables and not only current variables a formal model to show how today s current account is a function of both current and future economic variables is presented the determination of the current account under classical assumptions of market clearing and continuous full employment is emphasized

destabilizing role of futures markets on north american hard red spring wheat spot prices the objective of the paper is to determine if the futures prices of hard red spring wheat hrsw have stabilizing or destabilizing impact on spot hrsw price in north america several important results emerge from thorough empirical analysis first both granger causality tests and directed acyclic graph algorithms dags point to two way causality between futures and spot hrsw prices and thus endogeneity in both prices formation to the contrary both procedures suggest that ending stocks are exogenous to spot and futures hrsw prices both vector error correction model and impulse response functions point to a large and long lasting impact of a shock to futures price on spot price level finally variance decomposition analysis indicates that futures prices are responsible for the bulk of spot price volatility in both short and long run our result is consistent with those of theoretical models suggesting that when production supply side is the dominant disturbance spot price is destabilized in both the short and the long run by futures prices an important implication of this research is the need for alternative market mechanisms or alternative farm policy measures that would mitigate price risk and ensure sustainable farming of american hrsw farmers

common stochastic trends in international stock markets abstract this paper presents evidence concerning the number of common stochastic trends in the equity markets of the u s japan england germany and canada monthly and quarterly data from january 1974 through august 1990 on morgan stanley s capital international indices are used to compute johansen 1990 tests for common trends the results indicate the presence of a single common trend driving these countries stock markets estimates of the factor loadings suggest that this trend is most important in the japanese market and least important in the canadian market to interpret this evidence the paper demonstrates that under weak conditions the unit root and cointegration structure of stock prices should mirror the unit root and cointegration structure of their dividend payments the paper tests this prediction by constructing national dividend series from capital international s dividend yield data as well as by using gnp data as with stock prices the evidence points to a single common trend although the stochastic properties and relative importance of this trend differs somewhat from the trend in stock prices

intergenerational aspects of public transfers borrowing and debt the paper analyzes intergeneration distributional effects of taxes transfer payments public borrowing and debt a two period life cucle model with overlapping generations is constructed the model has two specific features private wealth in both periods enter as arguments in the preference function and the individuals inelastically supply labor in both periods it turns out that some fiscal policy actions favor both of the currently lliving generations possibly at the expense of future generations while other actions generate conflicts between the currently living generations the analysis also shows that it makes considerable difference whether the burden of public spending debt and borrowing is defined in terms of wealth consumption and utility the different implications of foreign vs domestic debt are examined

innovation in china innovation has been increasingly recognized as a critical force in national economic growth not only in developed countries but also in emerging countries such as china and india this paper provides a critical review of the literature related to china s innovation capability first i evaluate the current status of china s innovation capability as measured not only by the level of human capital and output of academic research but also by patents products and services that directly benefit economic growth i then review the development pathway of china s national innovation system since the economic reforms including policies the role of the government and the engagement of different actors in the national innovation system following that i examine theories and empirical evidence that help to explain the evolution of china s innovation capability finally using china s experience i analyze the relationship between innovation capability and economic development and highlight how the uneven spatial distribution of innovation capability may affect china s regional economic development

the dynamic effects of aggregate demand and supply disturbances we interpret fluctuations in gnp and unemployment as due to two types of disturbances disturbances that have a permanent effect on output and disturbances that do not we interpret the first as supply disturbances the second as demand disturbances demand disturbances have a hump shaped mirror image effect on output and unemployment the effect of supply disturbances on output increases steadily over time peaking after two years and reaching a plateau after five years

correlations in price changes and volatility across international stock markets the short run interdependence of prices and price volatility across three major international stock markets is studied daily opening and closing prices of major stock indexes for the tokyo london and new york stock markets are examined the analysis utilizes the autoregressive conditionally heteroskedastic arch family of statistical models to explore these pricing relationships evidence of price volatility spillovers from new york to tokyo london to tokyo and new york to london is observed but no price volatility spillover effects in other directions are found for the pre october 1987 period article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

interest rate linkages in the eurocurrency market contemporaneous and out of sample granger causality tests abstract this paper examines linkages among major eurocurrency interest rates during 1994 2002 eurocurrency interest rate causal linkages are found to be much stronger with additional allowance for contemporaneous causality test results than the inference based solely on granger causality tests the impact of u s interest rates is clearly not dominant in the eurocurrency markets while the japanese interest rates are found to be quite influential german interest rates both cause and are caused by several other eurocurrency interest rates by contrast interest rates on the new currency the euro do not have a substantial influence on other eurocurrency interest rates which underscores its emerging status

comparing innovation systems a framework and application to china s transitional context abstract this paper proposes a generic framework for analyzing innovation systems anchored around five fundamental activities r d implementation end use education linkage and focused on the performance implications of a system s structure and dynamics rather than simply describing the role and performance of particular actors institutions and policies this approach focuses on system level characteristics including the distribution of these activities within the system the organizational boundaries around them coordination mechanisms evolutionary processes and the effectiveness of the system in introducing diffusing and exploiting technological innovations the framework is applied to a comparison of china s national innovation system under central planning and since reforms revealing the evolving structure and dynamics of this system and current inconsistencies and perverse incentives that policymakers must address to realize their development goals more generally it provides a basis for addressing the implicit assumptions of organizational types roles and convergence among innovation systems emerging in very different contexts whether national regional or industrial

the emerging market crisis and stock market linkages further evidence this study examines the long run price relationship and the dynamic price transmission among the usa germany and four major eastern european emerging stock markets with particular attention to the impact of the 1998 russian financial crisis the results show that both the long run price relationship and the dynamic price transmission were strengthened among these markets after the crisis the influence of germany became noticeable on all the eastern european markets only after the crisis but not before the crisis we also conduct a rolling generalized var analysis to confirm the robustness of the main findings copyright 2006 john wiley sons ltd

the contagion channels of july august 2011 stock market crash a dag copula based approach abstract the objective of this paper is to empirically investigate whether there is a contagion phenomenon between the stock markets during the july august 2011 stock market crash when there is a market contagion we will identify the propagation channel through which the crash is transmitted hence after checking if there is financial contagion between the stock markets we will see if the transmission mechanism constraints of wealth outweighs that of the portfolio rebalancing an additional test covering the interdependence between the stock and bond markets during the crash helps us verify whether the transmission is due either to the cross market rebalancing channel or to the flight to quality phenomenon on the basis of the combination of the copula theory and the directed acyclic graph to study the structure of causal dependence between the stock market during the period that lies between 01 02 2010 and 28 11 2012 we show that the links between countries are different between the pre crash period and that of the crash more specifically the links that do not exist during normal times seem to have a major role during the crash period we interpret this result as an evidence of the existence of pure contagion on the one hand the tests show that the channel of the portfolio rebalancing was the major mechanism for the spread of the crash on the other hand the phenomenon of the cross market rebalancing existed only in germany whereas that of the flight to quality was in all the other studied stock markets

current account dynamics and the terms of trade harberger laursen metzler two generations later this is a study of the current account dynamics resulting from the savings and investment dynamics in a small open economy which is subject to exogenous changes in its terms of trade and in world interest rates anticipated and unanticipated as well as temporary and permanent terms of trade changes have very different effects there is however a general tendency towards cycles in both savings and investment which gives rise to cycles in the current account it is shown that the classic harberger laursen metzler effect on saving of a terms of trade deterioration can have any sign for plausible parameter values both for temporary and permanent disturbances

atheoretical macroeconometrics a critique abstract the spurious nature of the restrictions used to identify many macroeconometric models has led some researchers to advocate a style of econometric inquiry that is less dependent on prior theoretical restrictions of the sort that were central to the approach of the cowles commission this development which we call atheoretical macroeconometrics is summarized and evaluated in the current paper it is contrasted with an updated version of the cowles commission approach we conclude that while some of the exercises of atheoretical macroeconometrics are valid those that have attracted the most attention and appear the most innovative exogeneity testing impulse response analysis and policy analysis using estimated vector autoregressions are based on incorrect analysis

the effects of monetary policy using structural factor analysis the traditional vector autoregression var method is widely used to trace out the effects of monetary policy innovations on the economy however this method suffers from the curse of dimensionality so that in practice vars are estimated on a limited number of variables leading to a potential missing information problem in this article we use the method of structural factor analysis to evaluate the effects of monetary policy on key macroeconomic variables in a data rich environment this methodology allows us to extract information on monetary policy and its impact on the economy from a much larger data set than is possible with the traditional var method we propose two structural factor models one is the structural factor augmented vector autoregressive sfavar model and the other is the structural factor vector autoregressive sfvar model compared to the traditional var both models incorporate information from hundreds of data series series that can be and are monitored by the central bank in

the terms of trade and the current account the harberger laursen metzler effect the paper examines the effect of terms of trade changes on a small country s spending and current account assuming optimizing behavior in an intertemporal framework with perfect international capital mobility a temporary future terms of trade deterioration implies a deterioration improvement of the trade balance whereas a permanent terms of trade deterioration has an ambiguous effect depending on the rate of time preference nominal and real variables are considered via exact price indexes two periods and an infinite horizon are examined

dynamic and contemporaneous causality in a supply chain an application of the us beef industry causal relationships are used to investigate information flows and directions of control in a decentralized multi echelon supply chain where no central authority has system level control over optimizing decisions we use secondary time series data representing the us beef industry to investigate dynamic and contemporaneous causality based on out of sample granger causality and direct acyclic graphs dags results indicate i the us beef supply chain experienced a significant structural change in late 1996 and early 1997 that may be attributed to a weather induced production shock and an apparent turnaround of the cattle cycle ii contemporaneous causalities appear to be stronger and dynamic causalities appear to be weaker after the structural change suggesting faster and more effective information transmission along the supply chain after the structural change iii contemporaneous information appears to flow from upstream to downstream tiers in the supply chain before the structural break which r

emu and european government bond market integration in this study we adopt the capm based model of bekaert and harvey 1995 to compare the differences in the relative importance of two sources of systemic risk world and eurozone on government bond returns in two groups of countries in eu 15 results show that euro markets are less vulnerable to the influence of world risk factors and more vulnerable to emu risk factors however they are only partially integrated for their part the markets of the countries that decided to stay out of the monetary union present a higher vulnerability to external risk factors

government spending and the real exchange rate i study the effect of government spending on the real exchange rate in an open economy version of the sidrauski model with a time varying rate of time preference that introduces complementarity between consumption at different points in time i show that a balanced budget fiscal expansion causes a real depreciation and a current account surplus if the expansion falls on traded goods if the increase falls instead on nontraded goods both the stylized results of a real appreciation and a current account deficit and the perverse result of an appreciation and a surplus can occur

international transmission mechanisms and contagion in housing markets this paper explores international transmission mechanism and its role in contagion effect in the housing markets across six major asian cities the analysis is based on the identification of house price diffusion effects through a global vector autoregressive gvar model estimated using quarterly data for six major asian cities hong kong tokyo seoul singapore taipei and bangkok from 1991q1 to 2011q2 the empirical results indicate that the open economies heavily relying on international trade such as singapore japan tokyo taiwan taipei and thailand bangkok show positive correlations between the economy s openness and house prices which is consistent with the balassa samuelson hypothesis interestingly some region specific conditions also appear to play important roles as determinants of house price movements which may be driven by restrictive housing policies and demand supply imbalances such as singapore and bangkok these results are reasonably robust across several model specifications the findings bear significant implications for formulation of investment strategy and public policies

ownership and firm innovation in a transition economy evidence from china we examine innovation performance of firms in a transition economy from an ownership perspective we focus specifically on the relationship between ownership structures and firm innovation performance drawing on data from 548 chinese firms we find volume of patent registration to be most strongly influenced by foreign ownership in the firm along with firm affiliation within a business group the influence of state and institutional ownership on innovation performance is positive but lagged contrary to expectations insider ownership leads to lower innovation performance and concentrated ownership has no significant impact our study has two principal contributions firstly we utilize a comprehensive treatment of ownership characteristics overcoming weakness in previous studies that have used a more narrow focus on ownership type secondly we contribute to understanding of how firms in transition economies build indigenous capabilities for innovation by drawing attention to the interplay of foreign and domestic control of agents innovation

international transmission of stock market movements this paper investigates the international transmission mechanism of stock market movements by estimating a nine market vector autoregression var system using simulated responses of the estimated var system we i locate all the main channels of interactions among national stock markets and ii trace out the dynamic responses of one market to innovations in another generally speaking a substantial amount of multi lateral interaction is detected among national stock markets innovations in the u s are rapidly transmitted to other markets in a clearly recognizable fashion whereas no single foreign market can significantly explain the u s market movements also the dynamic response pattern is found to be generally consistent with the notion of informationally efficient international stock markets

on the changing structure among chinese equity markets hong kong shanghai and shenzhen this study investigates information discovery among five chinese equity markets measured daily over the period 1995 2014 we employ time series methods for finding structural breaks if any and uncovering both short run and long run fluctuations we apply a new algorithm of inductive causation for use with non gaussian data to study the information flows in contemporaneous time the empirical results show that there are four break dates and that the underlying causal models changed over our study period the shanghai a share market dominates the other markets in the most recent period

the structure of interdependence in international stock markets abstract this study investigates the dynamic structure of nine major stock markets using an error correction model and directed acyclic graphs dag the dag representation provides a structure of causality among these markets in contemporaneous time building on this contemporaneous structure and the estimated error correction model innovation accounting techniques are applied the results show that the japanese market is among the most highly exogenous and the canadian and french markets among the least exogenous in our nine market study the us market is highly influenced by its own historical innovations but it is also influenced by market innovations from the uk switzerland hong kong france and germany the us market is the only market that has a consistently strong impact on price movements in other major stock markets in the longer run

firm networking and bribery in china assessing some potential negative consequences of firm openness economic openness both in terms of increased international trade exposure and enhanced inter firm networking has been a key element of china s economic emergence since the implementation of market reforms and the opening up policy over 30 years ago unfortunately these changes have also coincided with the increased incidence of bribery and corruption both in general and in the specific context of china research on the relationship between a firm s tendency toward openness and its propensity to engage in bribery is scarce this study seeks to fill this gap based on empirical evidence provided by a large sample of chinese firms the findings of the study reveal that firms increased networking and openness tend to occur contemporaneously with greater bribery and corruption we suggest that this may be due to the misuse of guanxi based networks that coincide with the presence of firms open network strategies heightened by the potential loss of resource and capability heterogeneity and hence reduced competitive advantages in the context of openness we further find that firms paying bribes do so as an attempt to overcome unnecessary bureaucratic processes and ineffective institutional support that might tend to hinder their development

impulse response analysis of cointegrated systems abstract impulse response or dynamic multiplier analysis of vector autoregressive systems with cointegrated variables is considered the asymptotic distribution of the responses estimated with johansen s 1988 maximum likelihood procedure is derived the results are illustrated with an analysis of a west german money demand system the investigation shows that a direct interpretation of the cointegration relations may be difficult or misleading thereby the virtue of impulse response analysis for applied work is illustrated

evolution in dynamic linkages across daily national stock indexes abstract this article investigates how dynamic linkages among the daily rates of return of eight national stock indexes have evolved since 1972 a dynamic simultaneous equations model is estimated to describe the contemporaneous and lead lag relationships across national equity markets over three different years 1972 1980 and 1987 results reveal growing market interdependence within the same geographical region over time while there are many significant intermarket relationships within the same 24 hour period there are few significant lagged responses across markets beyond 24 hours this suggests a high degree of international market efficiency furthermore japan s market influence has been growing to rival that of the usa

price shock transmission evidence from the wheat bread market value chain in ethiopia this study assesses the degree of vertical price transmission along the wheat bread value chain in ethiopia this is pursued by applying a vector error correction model and an impulse response analysis using monthly price data for the period 2000 2015 our analysis considers transmission of price shocks across different market levels including from the international and domestic wheat grain markets at the upstream to the domestic wheat bread market at the downstream of the value chain the empirical findings indicate that significant cointegration exists across prices of the different market stages there is a transmission from international prices to domestic prices at downstream markets in particular to flour and bread prices prices at upstream markets are largely influenced by the domestic wholesale market in general the speed of adjustment is quite slow with a half life of about one year for restoring the equilibrium price relationship as price margins between the different market stages in the value chain have substantially decreased in the last 15 years higher transmission and thus exposure to international market shocks can be expected in the future the results also show that causal relationships exist between prices at different market stages with the wholesale market identified as the key market level where prices and price expectations are formed

national innovation systems and the intermediary role of industry associations in building institutional capacities for innovation in developing countries a critical review of the literature abstract developed over the past three decades the national innovation system concept nis has been widely used by both scholars and policy makers to explain how interactions between a set of distinct nationally bounded institutions supports and facilitates technological change and the emergence and diffusion of new innovations this concept provides a framework by which developing countries can adopt for purposes of catching up initially conceived on structures and interactions identified in economically advanced countries the application of the nis concept to developing countries has been gradual and has coincided in the nis literature with a move away from overly macro interpretations to an emphasis on micro level interactions and processes with much of this work questioning the nation state as the most appropriate level of analysis as well as the emergence of certain intermediary actors thought to facilitate knowledge exchange between actors and institutions this paper reviews the nis literature chronologically showing how this shift in emphasis has diminished somewhat the importance of both institutions particularly governments and the political processes of institutional capacity building in doing so the paper suggests that more recent literature on intermediaries such as industry associations may offer valuable insights to how institutional capacity building occurs and how it might be directed particularly in the context of developing countries where governance capacities are often lacking contributing to less effective innovation systems stagnant economies and unequal development

superexogeneity and the dynamic linkages among international equity markets abstract in this article we combine the johansen procedure for cointegration testing with tests of weak exogeneity and invariance in order to ascertain whether a system of equity markets is characterized by superexogeneity superexogeneity is rejected for the system comprised of stock indices of the us uk germany and japan this finding implies that agents participating in these financial markets are forward looking all markets are endogenous in our system and the assumption of stability of the asset demand function is questionable

do market capitalization and stocks traded converge new global evidence abstract in this paper we examine convergence of stock markets our empirical exercise is based on 11 different panels which together consist of 120 countries the richness of the dataset allows us to disaggregate countries into panels such as high income middle income low income oecd csi and developing country panels in addition we construct regional panels such as those representing the arab states east asia and the pacific south asia latin america and the caribbean and sub saharan africa our main finding is that based on the conditional convergence model convergence of stock market capitalization and stocks traded is found for four panels namely the high and low income panels the oecd panel and the sub saharan african panel the speed of convergence is high in most cases between 20 and 30

sources of real exchange rate fluctuations in the nordic countries in an attempt to move beyond the purchasing power parity hypothesis this paper addresses two issues the first concerns the causes of movements in real exchange rates in contrast to the typical result supply shocks are found to dominate the long run variance decompositions for each of the four nordic countries under study this suggests that productivity developments are the most important determinant of long run movements in real exchange rates a second topic is the relative importance of stationary and non stationary components of real exchange rates also in contrast to previous findings transitory shocks are more important than permanent shocks for three of the four countries

risk and capital accumulation in a small open economy this paper examines the dynamics of capital accumulation in a small open economy where home capital is risky and consumers are risk averse it is assumed that the economy participates in perfect international bond markets but that risky home capital is held by domestic residents only under these assumptions the rate of investment is no longer independent of the saving rate and they are positively related as a result a rise in savings does not increase foreign investment by the same amount but by less and in some situations the quantity of foreign assets may even decrease

china s innovation system reform and growing industry and science linkages abstract in this paper linkages of s t activities between industry and science are statistically investigated based on a firm level dataset from an s t survey by the national bureau of statistics nbs of the prc of about 22 000 manufacturing firms during the transition period of china s innovation system from 1996 to 2002 firms s t outsourcing activities increased significantly econometrics analysis reveals that 1 absorptive capacity for s t outsourcing becomes important over time 2 innovation system reforms for more market based competition work for better incentive scheme for innovation though s t linkage activities and 3 government funding of s t induces more s t linkages

arbitragem estatistica estrategia long short pairs trading abordagem com cointegracao aplicada ao mercado de acoes brasileiro this article applies cointegration tests to identify stocks to be used in pairs trading strategy in addition to estimating long term equilibrium and model the resulting residual we use an indicator of profitability in in sample simulations to select stock pairs to compose a pairs trading portfolio we assessed the profitability of the strategy with data from the brazilian market between january 2005 and december 2009 considering we reached an average return of 17 49 per year sharpe ratio of 1 29 and low correlation with the market the results reinforce the use of cointegration in quantitative management statistical arbitrage circumvents the joint hypothesis dilemma of traditional market eciency tests because its definition is independent of any equilibrium model and its existence is incompatible with market eciency

portfolio choice consumption and welfare when rates of return are related to prices of consumer goods abstract this paper generalizes the two period model of portfolio selection under uncertainty by decomposing the aggregate consumption in each period into several goods the prices of some of which are positively related to rates of return on some assets the effect of these relations on the choice of portfolio is analyzed the effects on the chosen portfolio of a lateral translation and of a mean preserving increase in the risk of the distributions of the random variables are analyzed a generalization of the hicks compensation to the case where the prices of consumer goods are positively related to rates of return on assets is offered and welfare implications are drawn

social security and savings plans in overlapping generations models abstract this paper examines the impact of social security and saving plans on a simple overlapping generations model with no uncertainty the model is related to and provides a reconciliation of the diamond and samuelson gale models of public debt and public capital savings plans and pay as you go social security are seen to have quite different effects depending on the assumptions governing the growth rates of public debt and capital and it is also shown that the social security program proposed by feldstein is infeasible in the steady state he adopts as a starting point

what drives natural gas prices in the united states a directed acyclic graph approach abstract this study investigates the impacts of driving factors for natural gas prices during the period from 1999 to 2017 a data driven approach namely the directed acyclic graph dag is first employed to disclose the contemporaneous relations among natural gas crude oil and various factors the main results indicate that there is a stable contemporaneous causal flow from crude oil to natural gas unlike most of the previous research we found a long term equilibrium relationship between crude oil and natural gas returns when additional factors were taken into account however the impact of oil price returns on natural gas price volatility has decreased after the 2008 global financial crisis finally storage and seasonality factors can never be ignored when analysing natural gas prices while the impact of speculative activity on natural gas volatility is relatively weak

european integration and asymmetry in the ems abstract the empirical literature offers conflicting views of german dominance in the european monetary system we examine the validity of the german dominance hypothesis gdh by analyzing the responses of european central banks and money markets to monetary innovations originating both in europe european asymmetry and abroad international asymmetry our results reconcile the conflicting views in the literature the gdh is confirmed when the analysis is conducted with intervention rates before german unification results support european asymmetry with short rates before 1990 but not international asymmetry after 1990 the gdh is not supported by either set of rates

fiscal policy and foreign debt abstract this paper shows that an expansionary fiscal policy may have the consequence of either increasing or decreasing the level of foreign debt in the context of a two sector small economy that produces traded and nontraded goods the long run effect of a fiscal expansion depends on a measure of the relative capital intensity of the two productive sectors in addition to the composition of private and public spending the short run effect of a transitory fiscal expansion is critically influenced by the extent to which investment reacts to current and prospective profits

the international price transmission in stock index futures markets i introduction numerous studies have investigated market linkages and price transmission mechanisms in major international equity markets employing the analytical framework of the vector autoregression var or its variant the error correction model ecm 1 studies such as von furstenberg and jeon 1989 eun and shim 1989 and koch and koch 1991 focus on the short run dynamic pattern of price transmission others like taylor and tonks 1989 and francis and leachman 1998 are primarily interested in the long run pattern of price transmission more recently an increasing number of studies explore both long and short run patterns of price transmission included in this last set are the works of malliaris and urrutia 1992 arshanapalli and doukas 1993 masih and masih 2001 and bessler and yang 2003 among others this study extends the examination of international price transmission to stock index futures markets the article contributes to the existing literature in three aspects first a relatively new empirical framework is applied to allow for inferences of price transmission at three different time horizons instantaneous the short run and the long run building on recent advances in statistical analysis of causal modeling using directed acyclic graphs dags as in spirtes et al 2000 pearl 1995 2000 and swanson and granger 1997 this study is able to explore the contemporaneous causal pattern underlying the correlations among market innovations the existence of strong contemporaneous correlations among market innovations has been well documented in the united states and international stock markets by agmon 1972 eun and shim 1989 koch and koch 1991 housbrouk 1995 and bessler and yang 2003 it is also well recognized by agmon 1972 849 and eun and shim 1989 246 that contemporaneous correlations among market innovations reflect the phenomenon that new information in one market is transmitted and shared by other markets in contemporaneous time due to immediate response to price changes between markets however more in depth analysis on exactly how instantaneous price transmission among market innovations is conducted in international equity markets has not yet been well addressed in the existing literature although bessler and yang 2003 touch on the issue the necessity of imposing constraints in the spirit of the block recursive structure noted by koch and koch 1991 in the dag analysis of var innovations is proposed and discussed thoroughly in this study second innovation accounting analysis is more thoroughly explored in the study innovation accounting tools i e impulse response analysis and forecast error variance decomposition have been commonly used to summarize the dynamic pattern of price transmission among international financial markets the importance of the factorization of innovations i e var residuals in yielding sound inference has been well acknowledged theoretically by bernanke 1986 sims 1986 and swanson and granger 1997 the application of the dag technique as discussed in swanson and granger 1997 and explained in the next section is further key to innovation accounting analysis in this study the instantaneous price transmission pattern between market innovations as identified by the dag analysis provides a data determined solution to the basic problem of orthogonalization of residuals from the ecm and thus is critical to impulse response analysis or forecast error variance decompositions swanson and granger 1997 argue that compared to the choleski decomposition the dag based structural decomposition is sensible but not subjective because it allows for the properties exhibited by the data although several recent studies such as those by bessler and yang 2003 bessler et al 2003 haigh and bessler forthcoming and yang 2003 have used the dag based structural decomposition in a similar setting the study is the first attempt responding to the suggestion by swanson and granger 1997 364 of investigating the empirical implications of the dag based contemporaneous causal modeling