meta paradigm change and the theory of the firm many seemingly unrelated debates on the theory of the firm are in fact part of a single deeper transformation of the social sciences as the foundational assumptions of 20th century social science have slowly been shown by science to be false new sub paradigms have emerged which cumulatively drop i theoretical assumptions about markets to explain firms ii epistemological assumptions about knowledge to explain diversity and iii metaphysical assumptions about causality to explain technical change debates occur across each of these levels

money supply announcements and real interest rates abstract current research on the relation between money and asset prices focuses on the reaction of asset prices to money supply announcements in this paper we use the real interest observed in the u k index linked bond market and the nominal interest rate observed in the nominal bond market to study the reaction of real interest rates and expected inflation to money surprises we find that monetary surprises have a strong effect on inflationary expectations we also find some evidence of a positive reaction of long term real interest rates to the m3 announcement

monetary innovations and interest rates this paper examines the effect of unexpected weekly changes in the money supply on financial markets l examination of financial market reaction to weekly monetary surprises provides information on how the economy reacts to monetary changes also the reaction to weekly monetary surprises may put real or imagined constraints on federal reserve behavior as noted by tobin a decade ago certainly the rate of growth of the money stock has become the customary capsule form for describing monetary policy and gauging how easy or tight it is for a time it seemed that public preoccupation with this number might itself be a market constraint on the federal reserve believers in monetarism would regard accelerated growth of m1 as the harbinger of more inflation and higher interest rates if such people were to dominate financial markets they would make it difficult for the fed to carry out a rate reducing expansionary policy tobin 1974 p 70 throughout the paper unexpected weekly changes in the money supply monetary innovations are measured by reported changes in the supply of money minus expected changes where expected changes in money are obtained from market survey data changes in current interest rates of various terms to maturity are used to measure the effects of innovations on financial markets

asset pricing with observable stochastic discount factors the stochastic discount factor model provides a general framework for pricing assets by specifying the discount factor suitably it encompasses most of the theories currently in use including capm and consumption capm the sdf model has been based on the use of single and multiple factors and on latent and observed factors in most situations and especially for the term structure single factor models are inappropriate whilst latent variables require the somewhat arbitrary specification of generating processes and are difficult to interpret in this paper we survey the principal different implementations of the sdf model for bonds equity and forex and propose a new approach this is based on the use of multiple factors that are observable and modelling the joint distribution of excess returns and the factors using a multi variate garch in mean process we argue that in general single equation and var models although widely used in empirical finance are inappropriate as they do not satisfy the no arbitrage condition since risk premia arise from conditional covariation between the returns and the factors both a multi variate context and having conditional covariances in the conditional mean process is essential we explain how apparent exceptions such as the cir and vasicek models in fact meet this requirement but at a price we explain our new approach discuss how it might be implemented and present some empirical evidence mainly from our own researches partly to enable comparisons to be made the survey also includes evidence from recent empirical work using more traditional approaches

monetary policy regimes expected inflation and the response of interest rates to money announcements this paper examines the response of the term structure of interest rates to weekly money announcements estimated responses for both the pre and post october 1979 periods are first presented then two competing hypotheses involving the policy anticipations and expected inflation effects are formally specified and compared with the estimated responses both hypotheses are found to be consistent with the responses but they have sharply different implications about the federal reserve s short run monetary policy by exploiting these different implications additional empirical results focusing directly on the money stock process support the policy anticipations hypothesis

using generalized method of moments to test mean variance efficiency this paper develops tests of unconditional mean variance efflciency under weak distributional assumptions using a generalized method of moments framework these tests are potentially more robust than commonly employed tests which rely on the assumption that asset returns are normally distributed and temporarily i i d using returns for size based portfolios from 1926 to 1988 we show that the conclusion concerning the mean variance effilciency of market indexes can be sensitive to the test considered the application of multivariate statistical techniques in financial economics has become common practice in recent years much of the development has been in the area of testing asset pricing models the assumption that asset returns follow a time invariant multivariate normal distribution permits tests of restrictions on model parameters in a pooled time series cross section framework these tests can be interpreted as tests of the mean variance efficiency of a portfolio or combination of portfolios gibbons 1982 jobson and korkie 1982 stambaugh 1982 shanken 1985 1987 kandel and stambaugh 1987 mackinlay 1987 and gibbons ross and shanken 1989 are examples of work presenting multivariate tests of the capital asset pricing model connor and korajczyk 1988 and lehmann and modest 1988 present multivariate tests of the arbitrage pricing model breeden gibbons and litzenberger 1989 present multivariate tests of the consumption based capm although these papers assume the normality of asset returns little analysis has been conducted to understand the sensitivity of the inferences to violations of this assumption 2 3

money supply announcements and real economic activity abstract this paper derives testable implications of a model due to siegel 1985 in which interest rates react to announced innovations in the money supply solely because money announcements reveal information about real economic activity tests of these implications yield results inconsistent with the model in addition the results contradict the finding of huizinga and leiderman 1987 that interest rates tended to rise in response to unexpected increases in the monetary base from october 1979 to february 1984

characterizing the technology firm an exploratory study abstract technology firms occupy a central position in modern economies they drive economic growth productivity gains and have created new industries and innovative products many will agree that technology firms are distinguished from others in their emphasis on technological activities since this observation is too general researchers suggested a variety of specific criteria and definitions a number of definitions of technology firms appear in the literature but many are arbitrary and simplistic and none gained wide acceptance similarly the number of characteristics suggested is large reflecting a variety of perspectives and interests in this case too no agreement exists as to which are the important ones also many seem to be interrelated capturing different aspects of the same underlying concepts this paper is concerned with the issue of definition and classification of technology firms we demonstrate the usefulness of a different approach to the definition and classification problem we rely on executives evaluations of their firms technology profile and level an analysis of these evaluations reveals the underlying dimensions the executives used in making their judgments we regard the dimensions we uncover as capturing the essence of technology firms and use them to classify the firms we study the specific characteristics the executives used to evaluate their firms were derived from a systematic scan of the literature thus the list represents the set of characteristics early researchers viewed as describing and defining technology firms the connection to early work enhances our findings validity and lends some credence to our belief that the three dimensions we uncover r d activities which are closely associated with a set of organizational elements and market conditions product strategy and corporate culture can be used by others to define technology firms and classify firms according to their technology level in our study we use these three dimensions to classify the firms studied we show that the commonly used practice of classifying firms as high and low technology according to the industry to which they belong is flawed our goal in this study is not to offer a new or better definition and characterization of technology firms or to offer the best approach to the generation of the classification criteria rather we demonstrate here the usefulness of a different approach to the problem while our approach does suffer from limitations it has important advantages we hope future studies will confirm not only the usefulness of our approach but also the general applicability of the specific criteria we identify in this study

crossing the lines the conditional relation between exchange rate exposure and stock returns in emerging and developed markets this paper examines the importance of exchange rate exposure in the return generating process for a large sample of non financial firms from 37 countries we argue that the effect of exchange rate exposure on stock returns is conditional and show evidence of a significant return impact to firm level currency exposures when conditioning on the exchange rate change we further show that the realized return to exposure is directly related to the size and sign of the exchange rate change suggesting fluctuations in exchange rates as a source of time variation in currency return premia for the entire sample the return impact ranges from 1 2 to 3 3 per unit of currency exposure and it is larger for firms in emerging markets compared to developed markets overall the results indicate that foreign exchange rate exposure estimates are economically meaningful despite the fact that individual time series results are noisy and many exposures are not statistically significant and that exchange rate exposure plays an important role in generating cross sectional return variation moreover we show that the relation between exchange rate exposure and stock returns is more consistent with a cash flow effect than a discount rate effect

international interest rates and us monetary policy announcements evidence from hong kong and singapore this paper investigates the responses of market interest rates to us monetary policy announcements for the us and two emerging economies hong kong and singapore which are similar on many respects but have experienced opposite exchange rate regimes in the last twenty years our results based on market expectations extracted from federal fund futures rates document that fomc announcements significantly affect the term structure of interest rate in the us and both asian countries further international interest rate differentials around fomc meeting dates tend to be negative for short maturities with the impact gradually dissipating as bond maturity increases finally for the case of singapore we find that domestic interest rates react to both external and domestic monetary policy announcements with a magnitude that is larger over the full bond maturity spectrum for domestic announcements these results are robust to time varying futures risk premia and alternative measures of interest rates expectations

economic news exchange rates and interest rates the paper esamines the post october 1979 response of exchange rates and interest rates to the new information contained in the first announcement of fifteen us macroeconomic series illarkets respond primarily to monetary news but also to news about the trade deficit domestic inflation and variables that reflect the state of the business cycle for all fifteen macroeconomic variables an increase decrease in interest rates is accompanied by an appreciation depreciation of the dollar which is consistent with models that stress price rigidity and absence of purchasing power parity the effect of economic news on asset prices has received increasing attention in the economic literature because an outcome of the efficient markets rational expectations hypothesis is that flesible asset prices change the moment new information about future fundamentals arrives in the market in the exchange rate literature the role of news has gained importance because structural models have failed to predict most of the variation in exchange rates during the 1970s see imeese and rogoff 1983 researchers were naturally led to investigate the types of news that make exchange rates so volatile and to utilize news in order to test which model of exchange rate determination is consistent with the floating eschange rate experience notable studies are those of dornbusch 1980 frenkel 1981 edwards 1982a b 1983 copeland 1984 and rose 1984 in this paper i also examine the effects of macroeconomic news on eschange rates but i adopt a different more direct strategy one that complements previous work avoids some of its shortcomings and promises interesting conclusions i examine the instantaneous response of exchange rates the moment a piece of economic news hits the market if one can isolate the exact time during a business day when news arrives it is straightforward to examine the response of exchange rates because financial data are continuously available the advantages of the present methodology are many first it is possible to identify the exact types of economic news and how they affect exchange rates second the simultaneity bias which plagues the previous literature on exchange rates and news is not present here the independent variables that represent news can be interpreted as causal the paper was presented at the 1985 meeting ofthe american economic association the author wishes to thank sebastian edwards r w hafer nicholas karamouzis andrew rose and two anonymous referees for helpful comments kim rupert of the money market services for providing the survey data soo kounne for able research assistance and barnard college for research support

an evolutionary approach to technological innovation in agriculture some preliminary remarks abstract this article proposes an interpretation of the process of technological innovation in agriculture we begin with a criticism to the idea of agriculture as a particular environment in economic analysis we argue that some dynamic concepts from economics of innovation especially as seen by the evolutionary literature can be used as an adequate theoretical reference to study innovation in agriculture we then suggest an interpretation in terms of technological trajectories in order to explain the complexity of the technological regime in agriculture finally we discuss the present stage of transformation in this technological regime and the perspectives of the arising new trajectories

why interest rates rise when an unexpectedly large money stock is announced ment of an unexpectedly large growth in the money supply will lead to an immediate increase in interest rates this announcement effect is often taken as confirmation of the monetarist view that the way to bring down interest rates even in the short run is to reduce the rate of money growth in this paper we provide an alternative explanation of the announcement effect that is consistent with the keynesian view that in the short run the way to bring down interest rates is to expand the money supply we do not address the issue of inflationary expectations in a formal way though in the long run we would expect the well known fisher effect to hold looking closely at the announcement effect it is clear that whatever may be the true short run relationship between money growth and interest rates it cannot be inferred from a simple correlation of announcements of changes in the money stock with the resulting changes in interest rates this is because of several properties of the announcement phenomenon that we capture in the model

gradual catch up and enduring leadership in the global wine industry the wine industry is an extremely interesting sector from a catch up point of view because the latecomers in the international market have changed how wine is produced sold and consumed and in doing so they have challenged the positions of incumbents until the end of the 1980s the european countries and particularly france and italy dominated the international market for wine subsequently significant changes in the market namely decreases in consumption by traditional consuming countries the entry of new inexperienced consumers and the increasing importance of large distribution have threatened this supremacy initially the usa and australia and later emerging countries such as chile and south africa gained increasing market shares in both exported volumes and value at the expense of incumbents however some of these newcomers e g australia have shown slower growth opening opportunities for newer entrants such as argentina and new zealand at the same time some of the incumbents especially italy have innovated challenging the leadership of france in key markets such as the usa in this article we investigate the different catch up cycles in the global wine sector that occurred between the 1960s and 2010 through a detailed analysis of export volumes values and unit prices we address issues related to the increasing share in the global market of latecomer countries and the relative decline of the incumbents as well as possible changes in the market leadership within these two groups

money supply announcements and interest rates does monetary policy matter abstract most current explanations of the effect of money supply announcements on the rate of interest center on central bank policy this paper analyzes a flexible price macroeconomic model where present and future monetary policy have no influence on either interest rates or real output but monetary data signal information about real economic activity which influences both short and long term real rates of interest the magnitude of the interest rate response is shown to depend on the difference in the income elasticities of currency and deposit demand and the relative size of monetary and real disturbances to the economy

inter industry technology flows in the united states abstract this paper presents for the u s economy a technology flows matrix tracing 1974 industrial r d expenditures from their industries of origin to industries in which the use of resulting products and processes was anticipated the distinction between origin and using industries is crucial to understanding the links between r d and productivity growth a regression analysis reveals high social rates of return and substantial productivity impacts from r d attributed to industries of use

exchange of cost information in oligopoly when do oligopolists gain by sharing their private information about their costs with one another what are the social welfare effects of such information exchange i study these questions by comparing the oligopolists expected profits under a cost sharing agreement with their expected profits in the bayesian equilibrium that would arise without cost sharing i also analyse the firms decisions to form a trade association to share their cost data under conditions of linear demand and cournot behaviour industrywide information exchange is the unique point in the core of the trade association membership game the exchange of cost data increases expected profits and welfare but reduces expected consumer surplus cost sharing increases efficiency by raising the market shares of lower cost firms and reducing the variability of aggregate output consumer surplus is diminished however because the variance of output is reduced and consumer surplus is a convex function of output

credit constraints and productivity in peruvian agriculture this article evaluates the performance of a rural credit market in peru we develop a model that shows that collateral requirements imposed by lenders in response to asymmetric information can lead not just to quantity rationing but also to transaction cost rationing and risk rationing just like quantity rationing these two additional forms of nonprice rationing adversely affect farm resource allocation and productivity we test the insights of the model using a panel data set from northern peru we estimate the returns to productive endowments for constrained and unconstrained households using a switching regression model we find that consistent with the theory productivity is independent of endowments for unconstrained households but is tightly linked to endowments for constrained households we estimate that credit constraints lower the value of agricultural output in the study region by 26

sectoral patterns of technical change towards a taxonomy and a theory abstract the purpose of the paper is to describe and explain sectoral patterns of technical change as revealed by data on about 2000 significant innovations in britain since 1945 most technological knowledge turns out not to be information that is generally applicable and easily reproducible but specific to firms and applications cumulative in development and varied amongst sectors in source and direction innovating firms principally in electronics and chemicals are relatively big and they develop innovations over a wide range of specific product groups within their principal sector but relatively few outside firms principally in mechanical and instrument engineering are relatively small and specialised and they exist in symbiosis with large firms in scale intensive sectors like metal manufacture and vehicles who make a significant contribution to their own process technology in textile firms on the other hand most process innovations come from suppliers these characteristics and variations can be classified in a three part taxonomy based on firms 1 supplier dominated 2 production intensive 3 science based they can be explained by sources of technology requirements of users and possibilities for appropriation this explanation has implications for our understanding of the sources and directions of technical change firms diversification behaviour the dynamic relationship between technology and industrial structure and the formation of technological skills and advantages at the level of the firm the region and the country

small sample tests of portfolio efficiency abstract this paper presents an eigenvalue test of the efficiency of a portfolio when there is no riskless asset complementing the test of gibbons ross and shanken 1989 besides optimal upper and lower bounds an easily implented numerical method is provided for computing the exact p value our approach makes it possible to draw statistical inferences on the efficiency of a given portfolio both in the context of the zero beta capm and with respect to other linear pricing models as an application using monthly data for every consecutive five year period from 1926 to 1986 we reject the efficiency of the crsp value weighted index for most periods

exchange rates interest rates and money stock announcements a theoretical exposition abstract when the federal reserve announce a larger than anticipated weekly level of the us money stock m1 the dollar appreciates and short term interest rates increase because of an expected liquidity effect but long term interest rates and particularly long run forward interest rates increase because of an expected inflation effect the two effects are not mutually exclusive but coexist when market participants are not completely sure of the fed s policy rule and thus react in a weighted average manner with weights that reflect subjective probabilities about different federal reserve money growth policies

foreign direct investment location strategies in the tire industry we analyze the nature of international competition among multinational firms in the tire industry using the frameworks of the theories of oligopolistic reaction and foreign direct investment we find that the firms investment patterns are related to the number and identities of competitors host country characteristics and foreign experience global tire companies from several nations demonstrate oligopolistic reaction behavior

secrecy of monetary policy and the variability of interest rates this paper addresses the issue of how secrecy of the short run monetary policy objectives affects the behavior of the federal funds rate secrecy is modeled by assuming that financial markets are unc ertain about a parameter in the federal reserve reaction function th ey learn over time about this parameter by means of bayes rule and this learning process is reflected in the time path of interest rates and of reserve aggregates the main result of the paper is that secr ecy tends to increase the volatility of the funds rate and of reserve aggregates copyright 1987 by ohio state university press

the differential impact of uncertainty on investment in small and large businesses we study the impact of profit uncertainty on investment and whether or not this response is different in industries that are dominated by small firms versus those that are dominated by relatively larger firms our key findings are that the sign of the investment uncertainty relationship is negative and that the quantitative negative impact is substantially greater in industries dominated by small firms these results are robust to accounting for potential endogeneity of the uncertainty measure alternate procedures for measuring uncertainty and alternate ways of segmenting industries into small and large firm groups

generalized methods of moments we provide a brief overview of applications of generalized method of moments in finance the models examined in the empirical finance literature especially in the asset pricing area often imply moment conditions that can be used in a straight forward way to estimate the model parameters without making strong assumptions regarding the stochastic properties of variables observed by the econometrician typically the number of moment conditions available to the econometrician would exceed the number of model parameters this gives rise to overidentifying restrictions that can be used to test the validity of the model specifications these advantages have led to the widespread use of the generalized method of moments in the empirical finance literature

the influence of market demand upon innovation a critical review of some recent empirical studies abstract a number of recent empirical studies of technical change at the level of the individual firm have concluded that market demand is the dominant influence upon the innovation process calling forth innovations in market economies the pace of innovation in the private sector heavily influences the growth of national output and productivity and these studies and their conclusions have therefore received much attention having been extensively quoted in discussions of appropriate government policy for the encouragement of innovation this paper reviews a number of these studies and concludes that their findings and the interpretations of their findings in the secondary literature are seriously flawed and in many cases invalid the proposition that market demand governs the innovation process is by no means conclusively demonstrated in these studies and they are therefore inadequate and inappropriate guides for the formulation of policy most of the studies examined employ a working definition of demand factors which is so broad as to embrace a range of possible influences upon innovation which should more properly be classified elsewhere the concept of demand utilized in these studies bears little resemblance to the more restrictive and precise definition of market demand found in economics in addition the phenomena analyzed in these studies are a very heterogeneous lot the studies do not address identical empirical questions and their findings are as a result neither uniform nor unambiguous both demand and supply side influences are crucial to understanding the innovation process and it is the exclusive preoccupation with only one set of these forces which is criticized in this paper some implications of the criticism for government policy toward innovation are discussed in the conclusion

impact on firms of the use of knowledge external sources a systematic review of the literature this study summarizes the main conclusions from a systematic review of the empirical literature regarding the impact on firms of the use of knowledge external sources universities research institutes and knowledge intensive business services with the aim to organize the literature we classify the different works according to the research question addressed i which firms use knowledge external sources ii do firms using knowledge external sources achieve better results and iii which firms benefit the most from using knowledge external sources stylized facts are that larger more r d intensive and high tech firms are more likely to use knowledge external sources and that use of knowledge external sources is associated to firms higher technical results less attention has been paid to the third question and evidence is not conclusive several recommendations for future research emerge first to take in greater consideration methodological issues so that potential biases in the results caused by sample selection and endogeneity are handled properly second to pay more attention to heterogeneous outcomes third to use continuous indicators of depth and breadth of links allowing for non linear relationships and fourth to extend evidence for developing countries and service industries

in defence of the linear model an essay this essay discusses the strength and weaknesses of the so called linear model lm of innovation it is a reaction to the habit of criticising it as over simplistic mechanistic or simply blatantly wrong we argue that while some criticisms are of course well grounded many others are instead based on loose interpretations and unwarranted assumptions in order to separate the wheat from the chaff this essay first presents a comprehensive description of the linear model and differentiates it from the caricature many refer to second we discuss the main criticisms put forward and argue that many of them are not at all destructive but can be easily accepted within a refined version of the lm third we discuss the policy implications often derived or said to derive from the lm to argue that the lm itself is distinctively policy neutral other assumptions have to be added to justify alternative policy implications

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

learning from the behavior of others conformity fads and informational cascades learning by observing the past decisions of others can help explain some otherwise puzzling phenomena about human behavior for example why do people tend to converge on similar behavior why is mass behavior prone to error and fads the authors argue that the theory of observational learning and particularly of informational cascades has much to offer economics business strategy political science and the study of criminal behavior

globalisation of knowledge production and regional innovation policy supporting specialized hubs in the bangalore software industry abstract this paper is concerned with the changing role of regional innovation systems and regional policies in supporting the transition of indigenous firms in developing countries from competing on low costs towards becoming knowledge providers in global value chains special attention is paid to policies supporting the emergence and development of the regional innovation system in this transition process regional innovation systems in developing countries have very recently started to be conceptualised as specialized hubs in global innovation and production networks asheim b coenen l vang lauridsen j 2007 face to face buzz and knowledge bases socio spatial implications for learning innovation and innovation policy environment and planning c government and policy 25 5 655 670 chaminade c vang j 2006a innovation policy for small and medium size smes in asia an innovation systems perspective in yeung h ed handbook of research on asian business edward elgar cheltenham maggi c 2007 the salmon farming and processing cluster in southern chile in pietrobello c rabellotti r eds upgrading and governance in clusters and value chains in latin america harvard university press a specialized hub refers to a node in a global value chain that mainly undertakes one or a few of the activities required for the production and development of a given good or service or serves a particular segment of the global market in global value chains firms in developing countries have traditionally been responsible for the lowest added value activities however a few emerging regional innovation systems in developing countries are beginning to challenge this scenario by rapidly upgrading in the value chain there is however still only a poorly developed understanding of how the system of innovation emerges and evolves to support this transition process and what the role of regional innovation policy is in building the regional conditions that support indigenous small and medium size enterprises smes in this transition process this paper aims at reducing this omission by analyzing the co evolution of the strategies of indigenous smes and the regional innovation system of bangalore india

firm behaviour and innovative performance an empirical exploration of the selection adaptation debate innovation is a complex trade off between routinisation and change between reliability and accountability of firms and timely adaptation this innovator s dilemma confronts innovation theory with the question how to align routinisation with innovation induced organisational change and consistent performance obviously it is a complex issue dominant innovation theory neglects this subject due to its pro innovation bias while evolutionary organisation and innovation theory give opposite perspectives on this problem the adaptation perspective considers pro active behaviour as the best condition for innovative performance whereas the selection perspective advances inert firm behaviour as the best alternative to achieve successful innovations our research question focuses on the explanatory value of either the selection or the adaptation perspective for the innovative performance of industrial firms our empirical findings confirm the adaptation perspective and reject the selection perspective comparatively firm behaviour involving the highest risks and uncertainties e g high environmental dynamics and high levels of adaptive activity contributes most significant to the explanation of innovative performance inert risk averse behaviour conversely does not improve or even impedes innovative performance compared with other types of firm behaviour

testing asset pricing models with coskewness in this article we investigate portfolio coskewness using a quadratic market model as a return generating process we show that the portfolios of small large firms have negative positive coskewness with the market we test an asset pricing model including coskewness by checking the validity of the restrictions that it imposes on the return generating process we find evidence of an additional component in expected excess returns which is not explained by either covariance or coskewness with the market however this unexplained component is homogeneous across portfolios in our sample and modest in magnitude finally we investigate the implications of erroneously neglecting coskewness for testing asset pricing models with particular attention to the empirically detected explanatory power of firm size

firm technological trajectory as a driver of eco innovation in young small and medium sized enterprises abstract few studies have focused on green innovation in young small and medium sized enterprises instead research tends to focus on large companies with formal research and development departments studying the influence of the firm s current technological strategy as well as the regulatory framework as a key driver of eco innovation this paper proposes that the combination of a firm s technological trajectory and its current research and development strategy are key determinants of eco innovation the authors investigate these relationships with panel data on 212 young firms in spain analysing their innovation strategy and behaviour during their first 10 years of activity the results show that the firms cluster into four technological trajectories but only market oriented innovators engage significantly more in eco innovation these firms are characterized by a high use of formal appropriability mechanisms market opportunity recognition arising from cooperation and high knowledge cumulativeness this paper sheds light on whether and the extent to which a firm s technological trajectory is a driver of eco innovation it confirms that firms that search for opportunities and have a continuous collaboration with market players are more prone to develop eco innovations additionally it shows that path dependence occurs in the development of eco innovations in that a highly developed innovation capacity leads to additional green innovation in the future the findings indicate that young small firms need to develop innovation capabilities that also enable them to adopt advanced technology before striving to become greener the paper concludes that policies designed to stimulate cooperative networking with other market players an upgrading of technological capabilities and the adoption of new technologies are all desirable because they contribute to improving the environmental impact of firms innovations

monetary shocks and the nominal interest rate this paper reconsiders the effects of monetary shocks on the nominal interest rate in a standard macroeconomic model it is determined that when the policy objective is controlling the money stock money supply shocks generate a situation of excess demand for money the positive relationship between nominal interest rates and monetary innovations in the united states following the 1979 change in regime is thus not puzzling but perfectly consistent with standard theory nominal interest rate decreases are possible only when fine tuning rules are adopted copyright 1992 by the london school of economics and political science

interest rates the forward premium and unanticipated money reply the relationship between the weekly money supply announcement and interest rates has attracted the attention of a large number of economists recent research by cornell 2 3 engel and frankel 5 gavin and karamouzis 6 grossman 7 hardouvelis 9 naylor 10 nichols small and webster 11 roley 12 roley and walsh 13 urich 14 and urich and wachtel 15 indicates a positive correlation between unanticipated changes in the announced money supply and interest rates the consensus on the relationship between unanticipated changes in money supply announcements and interest rates however disappears in the explanation of the phenomenon two competing explanations and thus two hypotheses are offered the main difference between the two hypotheses lies in the interpretation of future money growth conditioned on the information provided by the money supply announcement according to the first hypothesis also known as the expected liquidity hypothesis market participants believe that the federal reserve will promptly offset any deviations in the money supply from its target level this implies that an unanticipated increase in the money supply revealed by the announcement will be followed by a monetary tightening and hence an increase in real short term interest rates according to the second hypothesis also known as the inflation premium hypothesis market participants interpret the change in the money supply revealed by the announcement as a permanent deviation from the money supply target this implies that an unanticipated increase in the money supply will not be offset and hence will raise the inflation premium therefore according to the first hypothesis an increase in nominal interest rates caused by an unanticipated increase in the announced money supply is due to a rise in real interest rates according to the second hypothesis it is due to an increase in the inflationary premium in order to distinguish between the two hypotheses evidence has been presented from the foreign exchange and long term bond markets after analyzing the correlation between unanticipated money growth and the change in the level of spot exchange rates before and after the announcements cornell 2 3 engel and frankel 4 hakkio and pearce 8 and hardouvelis 9 find support for the expected liquidity hypothesis based on the correla

bayesian learning in an infant industry model abstract most analyses of the infant industry argument assume that production early on benefits subsequent production in deterministic fashion this paper presents an alternative framework for evaluating the infant industry argument that focuses on imperfect information as a barrier to entry initial entrants provide information of social value by reducing uncertainty for potential followers about the suitability of local conditions in contrast to earlier work i show that factors that increase the informational barrier to entry may lower the optimal subsidy to the infant industry and that the standard test of the success of infant industry policy is not always valid 1997 elsevier science b v

market perceptions of federal reserve policy and the weekly monetary announcements abstract in october 1979 the federal reserve altered its operating procedures emphasizing control of the growth rate of the money stock was the fed able to gain credibility in the market the paper investigates this question by examining the reactions of spot and expected future exchange rates foreign interest rates and long run domestic forward interest rates to the weekly federal reserve announcements of m l both before and after october 1979 the empirical evidence points out that the fed did gain credibility but was unable to establish full credibility the market reactions are consistent with the hypothesis that market participants attached a positive probability to the event that the fed may at some point in the future abandon its money stock targets

invention and innovation in the chemical industry demand pull or discovery push abstract this paper describes a study of the determinants of the rate direction and scale of inventive and innovative activity in the chemical industry over the period 1830 1980 statistical data are interpreted in the light of case study material in three major sectors dyestuffs plastics and pharmaceuticals theories of technical change and economic growth particularly those of schmookler and schmpeter are examined in relation to this material on the chemical industry the findings suggest that the importance of demand pull and discovery push factors and the validity of schmookler s and schumpeter s theories vary over an industry s life cycle

the effect of relative monetary surprises on spot exchange rates this paper examines the hypothetical relationship between us and canadian monetary surprises and the behaviour of us canadian spot exchange rates past studies have found that positive us monetary surprises were correlated with an appreciating us dollar in foreign exchange markets in this paper it is argued that monetary surprises in the us must be measured relative to foreign monetary innovation rather than in the conventional absolute sense when examining their impact on exchange markets rational investors consider expected returns and risk differentials in the us and local markets jointly in determining whether to be net buyers or sellers of us dollars the monetary actions of both the fed and the central bank operating in the local foreign economy will be considered in the foreign exchange market because of the close synchronization between the weekly money supply announcements in canada and the us it is possible to examine whether the relative or absolute us monetary surprise is more signifi

gmm tests of stochastic discount factor models with useless factors abstract this paper studies generalized method of moments tests for the stochastic discount factor representation of asset pricing models when one of the proposed factors is in fact useless defined as being independent of the asset returns analytic results on asymptotic distributions and simulation results on finite sample distributions both show that i the wald test tends to overreject the hypothesis of a zero factor premium for a useless factor when the model is misspecified ii with the presence of a useless factor the power of the over identifying restriction test in rejecting misspecified models is reduced and in some cases a misspecified model with a useless factor is more likely to be accepted than the true model

patterns of innovation and organizational demography in emerging sustainable fields an analysis of the chemical sector this paper examines the patterns of environmental innovation in the chemical sector and focuses in particular on detecting whether the rise of sustainable chemistry technologies sct has stimulated the emergence of new organizations this question is important to assess the extent to which sct are sustaining the technological advantage of industry incumbents or are creating opportunities for new firms aspiring to develop radically new environmental innovations we found that sct still represent a relatively low proportion of chemical technologies and that they have not stimulated in a significant way the emergence of new firms however the importance of new firms has grown in the last 20 years and their technologies seem to have a higher potential of radicalness than incumbents technologies this indicates that although incumbents advantage remains strong a small group of young firms has started to weaken such advantage moreover the important role played by research organizations in generating sct may signal that technological opportunities are expanding and that some governments in particular the us government are committed to develop sct these results suggest that if supported by effective policies technological ferment in the field which at the present appears still limited has a potential of growth

learning from foreign investment by rival firms theory and evidence we offer an alternative explanation for follow the leader behavior in foreign investment decisions based on bayesian learning by rival firms we test the implications of the model through a panel count data sample of mnes that have invested in central and eastern europe over the period 1990 1997 interacting the measure of rivals investment in country industry pairs with uncertainty we are able to identify the channel of bayesian learning about revenue postulated by the model as the only one consistently generating the detected follow the leader behavior of foreign investments the empirical findings are robust with respect to different model specifications

conditional volatility skewness and kurtosis existence persistence and comovements abstract recent portfolio choice asset pricing value at risk and option valuation models highlight the importance of modeling the asymmetry and tail fatness of returns these characteristics are captured by the skewness and the kurtosis we characterize the maximal range of skewness and kurtosis for which a density exists and show that the generalized student t distribution spans a large domain in the maximal set we use this distribution to model innovations of a garch type model where parameters are conditional after demonstrating that an autoregressive specification of the parameters may yield spurious results we estimate and test restrictions of the model for a set of daily stock index and foreign exchange returns the estimation is implemented as a constrained optimization via a sequential quadratic programming algorithm adequacy tests demonstrate the importance of a time varying distribution for the innovations in almost all series we find time dependency of the asymmetry parameter whereas the degree of freedom parameter is generally found to be constant over time we also provide evidence that skewness is strongly persistent but kurtosis is much less so a simulation validates our estimations and we conjecture that normality holds for the estimates in a cross section setting we also document covariability of moments beyond volatility suggesting that extreme realizations tend to occur simultaneously on different markets

sectoral systems of innovation and production the concept sectoral system of innovation and production provides a multidimensional integrated and dynamic view of sectors it is proposed that a sectoral system is a set of products and the set of agents carrying out market and non market interactions for the creation production and sale of those products a sectoral systems has a specific knowledge base technologies inputs and demand agents are individuals and organizations at various levels of aggregation they interact through processes of communication exchange co operation competition and command and these interactions are shaped by institutions a sectoral system undergoes change and transformation through the co evolution of its various elements 2002 elsevier science b v all rights reserved

some determinants of cost distributions in the process of technological innovation abstract industrial research and development r d is a set of activities within the broader set of decisions and activities the process of technological innovation ti it is technology transfer commercialization of the innovation that leads to technology diffusion that permits production and employment expansion and hence economic growth an important goal of industrial policy firms managements and government policy makers should recognize the close relationships among the phases of ti and direct their policy planning budgeting and control decisions to the complete process many policies currently focus their attention to only one or a few points such as r d in this study we conducted a detailed cost analysis of a limited number of innovation projects and studied the distributions of ti cost over the process phases we find that almost half of ti costs are devoted to r d which implies that government support of this phase is important different cost patterns emerge when we classify innovations by industrial sectors firms sizes and project complexity complex innovations require larger and more variable risky r d budgets smaller firms need more assistance in technology transfer these are only a few important policy implications this study emphasizes the importance of post r d phases and concludes that differential industrial policy may be required for technological innovations

the impact of money on short term interest rates this study reviews empirical evidence from four research methods related to the impact of money on short term nominal rates the studies consistently fail to find evidence supporting the much hypothesized short term negative relationship between money and nominal rates since at least april 1975 reasons for the absence of a negative relationship include the tendency of financial markets to anticipate corrective action by the fed whenever ml deviates from targeted growth ranges and a rapid adjustment of inflationary expectations to changes in money growth

a critique of the stochastic discount factor methodology in this paper we point out that the widely used stochastic discount factor sdf methodology ignores a fully specified model for asset returns as a result it suffers from two potential problems when asset returns follow a linear factor model the first problem is that the risk premium estimate from the sdf methodology is unreliable the second problem is that the specification test under the sdf methodology has very low power in detecting misspecified models traditional methodologies typically incorporate a fully specified model for asset returns and they can perform substantially better than the sdf methodology asset pricing theories such as those of sharpe 1964 lintner 1965 black 1972 merton 1973 ross 1976 and breeden 1979 show that the expected return on a financial asset is a linear function of its covariances or betas with some systematic risk factors this implication has been tested extensively in the finance literature by the so called traditional methodologies in the traditional methodologies a data generating process is first proposed for the returns and then the restrictions imposed by an asset pricing model are tested as parametric constraints on the return generating process the approach taken by the traditional methodologies has a potential problem which is that when the proposed return generating process is misspecified the test results could be misleading therefore in applying the traditional methodologies researchers typically have to justify that the proposed data generating process provides a good description of the returns for example when the proposed return generating process is a factor model one would like the model to have high r 2 in explaining the returns on the test assets especially when the test assets are well diversified portfolios as many of the earlier theories are special cases of the stochastic discount factor sdf model recent empirical asset pricing studies have been focused on testing the pricing restrictions in terms of the sdf model rather

central bank secrecy fed watching and the predictability of interest rates abstract a common criticism of central bank secrecy is the assertion that it will lead to lower forecast accuracy on the part of private agents the model considered here demonstrates that reducing central bank secrecy can actually reduce the forecasting accuracy of many of the private agents in the economy when it is recognized that some agents engage in fed watching and others do not this result comes about because the interest rate process depends in part on the information that agents use in forecasting future interest rates

commodity prices money surprises and fed credibilit strict monetarist theory in an extreme form holds that excessive money growth or the expectation of future money growth shows up immediately in the rapid inflation of goods prices however it is widely argued that for most goods prices are in fact sticky in the short run and reflect money growth only in the long run if one seeks a sensitive market measure of the perceived looseiless or tightness of monetary policy one must look elsewhere than at the general price level interest rates being determined in quickly adjusting financial markets are free to respond immediately to expectations regarding monetary policy in 1981 and 1982 every friday at 4 10 p m eastern standard time the federal reserve board would announce the money stock for the week ending nine days previously if the announced money stock was different from what the market had been expecting interest rates generally jumped in the same direction clearly they were responding to revisions of the expected future path of the money stock but nominal interest rates are an ambiguous indicator of expectations on the one hand an announced increase in the money stock may be received by the market as indicating a higher

the roles of science in technological innovation abstract one of the central issues in science policy during the past decade has been the extent to which the national levels of expenditure on scientific education and research influence the standard of living this paper provides empirical evidence to show that the pay off from this investment in science is more complex and indirect than previously supposed

does location matter for firms r d behaviour empirical evidence for danish firms in this paper we analyse whether regional location matters for danish firms r d performance in accordance with kleinknecht and poot s 1992 survey we test the urban hierarchy hypothesis stating that firms in urban agglomerations are more likely to perform r d than firms elsewhere using a micro dataset for danish firms obtained by merging danish r d statistics with account data the evidence of the influence of location on both the probability for undertaking r d and r d intensity is mixed but basically not in favour of any urban hierarchy in danish r d other non regional factors such as size of firm sectoral dummies classified according to pavitt s taxonomy and the dummy controlling for ict service industries are also estimated to have significant influence on firms r d behaviour furthermore the age of a firm only affects its r d intensity significantly cet article cherche a analyser si oui ou non la localisation regionale est importante pour le comportement des entreprises danoises quant

analyzing literature based innovation output indicators the italian experience abstract this paper presents the results of a study on the product innovations introduced in the italian market in 1989 and reported in a selected number of trade journals the analysis of data collected by means of this literature based counting procedure confirms that r d oriented industries and large firms do not in italy have a marked competitive advantage in innovation the country appears to be instead characterized by a significant presence of consumer goods industries and small firms in innovation our data indicate a statistically significant association between trade competitiveness and strength in product innovation and show the comparatively higher capacity for product innovation of some of the industries in which italy achieves a positive performance in international trade moreover the presence of spillovers at the regional level from both private and public r d expenditures proves to be positively correlated with the development of product innovations finally small firms with fewer than 50 employees appear to be more innovative than is usually believed to be the case

the role of knowledge in r d efficiency past research has recognized that both demand and capability influence the allocation of r d resources scholars have had an easier time getting a grip on demand than on capability while it has been recognized that knowledge is an important part of capability to date formalization of knowledge and its role in r d activity has been unsatisfactory this paper models the role of knowledge in r d various sources of such knowledge are considered the model throws a different light on analyses that employ a knowledge capital stock and also illuminates the dual private and public nature of technological knowledge

demand and supply in new markets diffusion with bilateral learning i explore the endogenous joint evolution of demand and supply in new markets firms and consumers learn in a bayesian fashion by observing the behavior of other firms and consumers respectively as a result endogenous information diffusion takes place on both sides of the market in equilibrium entry occurs in waves and its level depends on two distinct informational effects the model identifies an externality that provides a natural explanation for s shaped diffusion paths entry reveals information to the consumers about the value of the new product and thus early waves of entry affect the expected profitability of subsequent entry

understanding the coexistence of formal and informal credit markets in piura peru summary this paper examines why farm households seek informal loans in piura peru where formal lenders offer loans at lower interest rates a panel data econometric analysis reveals that the informal sector serves various types of clients households excluded from the formal sector but also households that prefer informal loans because of lower transaction costs or lower risk an in depth examination of contract terms and loan technologies permits an accurate comparison of effective loan costs and contractual risk across sectors and reveals that proximity and economies of scope enjoyed by informal lenders enable them to substitute information intensive screening and monitoring for contractual risk and supply these various types of clients