optimal nonparametric estimation of first price auctions this paper proposes a general approach and a computationally convenient estimation procedure for the structural analysis of auctioni data considering first price sealed bid auction models within the independent private value paradigm we show that the underlying distribution of bidders private values is identified from observed bids and the number of actual bidders without any parametric assumptions using the theoiy of minimax we establish the best rate of uniform convergence at which the latent density of private values can be estimated nonparametrically from available data we then propose a two step kernel based estimator that converges at the optimal rate

optimal state dependent rules credibility and inflation inertia abstract we use a state dependent model where pricing rules are optimal to examine the costs of a money based disinflation under various assumptions about the credibility of the policy change our analysis allows us to relate actual credibility and future inflation inertia to the asymmetry of the price deviation distribution an important implication of our state dependent setting is that disinflation can be attained without substantial cost even in a situation of low credibility provided that a mechanism of price alignment eliminates the asymmetry of the price deviation distribution we also develop an analytical framework for analyzing intermediate imperfect credibility cases

variance of agricultural prices industrial prices and money the relative uncertainty of agricultural prices and industrial prices with respect to the uncertainty of growth in the money supply are investigated utilizing multivariate arch and garch analysis the conditional variances of agricultural prices were shown to dwarf the variances of industrial prices and the money supply the relatively greater sensitivity of the conditional variance of agricultural prices to changes in the variance of the money supply than industrial prices found in this analysis provides a further perspective on the uncertainty confronting farmers including the impacts of the monetary policy shock that precipitated the farm financial crisis in the early 1980s

reinterpreting the role of inflation in politico economic models the author attempting to analyze the interplay between politics and economics is faced with a large number of problems ranging from an always too small and idiosyncratic data set to the lack of any generally accepted theory of the process which has testable implications my aims have been 1 to show that past studies have typically treated inflation in an extremely naive way disregarding the fact that it may have political pluses if unanticipated and 2 to test the sensitivity of established formulations to what i believe is the more useful view of voter behavior given in model ii since model i and model ii represent polar extremes of amnesiac and eidetic behavior tests of intermediate lag structures are clearly in order because of administration peculiarities however lost data points will pose a serious problem

first price sealed bid auctions when bidders exhibit different attitudes toward risk abstract when bidders have different risk aversion levels we determine in a first price auction the asymmetric equilibrium strategies we analyze the impact of asymmetric risk aversion levels on bidders markups and on the expected revenue and allocative efficiency of the auction

reap what you sow agricultural technology urbanization and structural change abstract this paper studies how productivity enhancing agricultural technology affects urbanization by provoking structural change we investigate these issues using a natural experiment in the united states the results show that technologies which improve crop productivity lead to a less urbanized economy as economic activity relocates from manufacturing and services towards agriculture the effects are highly persistent and are driven by the technology increasing agricultural labor demand our findings highlight the potentially unintended disruptive force of innovative technologies

legitimizing research technology and innovation policies for transformative change combining insights from innovation systems and multi level perspective in a comprehensive failures framework abstract the recent policy debates about orientating research technology and innovation policy towards societal challenges rather than economic growth objectives only call for new lines of argumentation to systematically legitimize policy interventions while the multi level perspective on long term transitions has attracted quite some interest over the past years as a framework for dealing with long term processes of transformative change but the innovation systems approach is still the dominant perspective for devising innovation policy innovation systems approaches stress the importance of improving innovation capabilities of firms and the institutional settings to support them but they are less suited for dealing with the strategic challenges of transforming systems of innovation production and consumption and thus with long term challenges such as climate change or resource depletion it is therefore suggested to consider insights from transition studies more prominently in a policy framework that is based on the innovation systems approach and the associated notion of failures we propose a comprehensive framework that allows legitimizing and devising policies for transformative change that draws on a combination of market failures structural system failures and transformational system failures

expected monetary changes and relative prices a look at evidence from the stock market at the heart of the natural rate theory is the assumption that fully perceived monetary growth is neutral with respect to relative price changes unfortunately there have been few attempts to test this assumption directly because the belief that active contracyclical monetary policies are not superior to friedman s constant growth rule rests upon the assumption that expected monetary changes have neutral relative price effects more evidence is needed on whether such changes are in fact neutral to this end we test the hypothesis that only the unexpected components and not the expected components of monetary changes affect relative price changes by looking at the stock market testing is done on a modification of the well known mean variance capital asset pricing model the capm specifically we modify the capm to allow for differential stock returns depending upon expected and unexpected monetary growth rates section ii explains the basic model used to test for non neutral relative price effects of monetary change section iii deals with the empirical definitions of expected and unexpected money growth section iv discusses the basic data while sections v and vi make neutrality tests of monetary growth using actual expected revisions in expected and unexpected money growths the last part summarizes the paper

inflation inflation uncertainty and relative price dispersion evidence from bivariate garch m models abstract one potential real effect of inflation is its influence on the dispersion of relative prices in the economy menu cost models generally imply that higher trend inflation will increase price dispersion in contrast signal extraction models predict that increased inflation uncertainty will raise relative price dispersion existing empirical studies do not distinguish between these separate hypotheses we constuct a bivariate garch m model of inflation and relative price dispersion to test these differing explanations in a single model and find that inflation uncertainty dominates trend inflation as a predictor of relative price dispersion

inflation and the distribution of price changes this paper reconsiders the empirical evidence connecting inflation to its higher order moments in particular we examine the statistical properties of the observed positive correlation between the sample mean and the sample cross sectional skewness of price changes this correlation has attracted substantial attention over the years and has recently been the focal point of a debate among macroeconomists we show that the sample mean skewness correlation suffers from a small sample bias that accounts for the entirety of the observed correlation in other words we establish that one of the stylized facts in the literature on aggregate price behavior need not be a fact at all

do deployment policies pick technologies by not picking applications a simulation of investment decisions in technologies with multiple applications abstract the role of deployment policies that aim to foster technological change has grown considerably especially in the fields of energy and climate however recent research has shown that the adoption of deployment policies carries the potential of locking in the technology that is most cost effective at the point of policy introduction but may be inefficient in the long term the present paper contributes to the emerging literature on the role of deployment policies in creating path dependency and eventually technology lock in while previous studies focused on the relationship between lock in and the technology specificity of deployment policies this paper introduces a new factor the existence of multiple applications for a technology we argue that this factor is highly relevant for technological lock in and should be considered by policy makers to support our argument we simulate the competition among four stationary battery technologies across energy system applications in an investment simulation model this simulation shows that the degree of competition among technologies differs strongly across applications which corresponds with a highly varying lock in probability hence selecting applications in deployment policies very likely corresponds to selecting technologies we discuss the implications of these results for both policy makers and for the academic debate on deployment policies and technological lock in as well as on technology assessment and governance more generally based on the notion that policies can have different technology specificity levels we develop the idea of the application specificity of policies and provide examples of currently enacted deployment policies that vary in terms of their technology and application specificity

relative price variability inflation and the allocative efficiency of the price system abstract this paper develops a theory of the relationship between aggregate and relative price variability based on the inability of people even in a rational world to identify permanent changes in relative demands whether caused by real or by monetary variability and relative productivities as soon as they occur the theory implies that the variance of the rate of inflation and the variance of relative price change are positively related although expectations are rational and markets always clear production decisions respond sluggishly to changes in relative prices temporary shocks to relative demands cause prolonged changes in the structure of production available information is used so as to maximize the efficiency of the price system however this efficiency decreases when any of the underlying variances increases this decrease is more pronounced when the production lag is longer

local recycled water in sydney a policy and regulatory tug of war abstract local recycled water lrw can potentially contribute to resilient and sustainable urban water services critical to liveable cities investment in these systems has increased rapidly in australia in the past 10 years yet public and private investment in these systems can still be difficult complex costly and risky an in depth case study analysis of sydney revealed that while the local policy institutional and regulatory environment is on the surface conducive to the uptake of local recycled water actual practice has surprisingly mitigated against further and broader investment in these systems these instruments are often counteracted by multiple opposing levers that in some instances were developed for entirely different purposes the generalizable insight is that a systematic systemic detailed review of these instruments and levers can reveal unexpected contradictions and provide a strong and defensible base from which to develop strategies to address unintended consequences and remove barriers to future investment

the relationship between relative prices and the general price level it is very nearly a truismi amaong neoclassical economists that the public is wont to confuse changes in the general price level with relative price changes correspondingl y one might speak of the independence between the two as one of the central postulates of the neoclassical tradition william stanley jevons was aml ong the first to identify this basic dichotomin economic life as well as to attempt to explain the ordinary citizen s seenming incapacity to understand it

optimal bidding in auctions from a game theory perspective abstract the game theoretic perspective in auction bidding has provided a powerful normative framework for the analysis of auctions and it has generated an impressive volume of research contributions tracing this research we review key recent advances which have greatly expanded our understanding of the operation of auctions and produced a more accurate analysis of mechanism design and optimal bidding we follow various experimental studies which have shown that the predictive power of auction theory remains in many cases limited for this reason we concentrate on research themes which enhance the applicability of auction theory leading to more realistic descriptions of bidding behaviors we identify important innovations which expand the environment of auction bidding and carry us beyond rational decision making we conclude providing directions of future research and discussing their implications

macroeconomic policy impacts on united states agriculture a simulation analysis abstract united states monetary and fiscal policies influence the domestic agricultural economy directly and through international linkages indirectly this study estimates the magnitude and statistical influence of coefficients relating u s macroeconomic policy to the u s agricultural economy through domestic and foreign markets specific objectives are to specify and estimate a general equilibrium quarterly econometric model of the u s macroeconomy and simulate the impact of federal deficit spending on real interest rates real exchange rates and net exports of agricultural products three hypotheses were tested the first hypothesis that an increase in federal deficit spending increases the real interest rate could not be rejected a 100 billion reduction in the u s deficit was estimated to reduce real interest rates by two percentage points or more the second hypothesis that an increase in real interest rate increases the real value of the u s dollar in foreign exchange markets had strong support and could not be rejected a third hypothesis that a rise in the real value of the dollar reduces net exports of u s farm products also could not be rejected results indicate that the u s agriculture would benefit from the lower exchange value associated with an optimal macroeconomic policy that policy initially made the overall u s economy perform less satisfactorily but that performance improves over time

the governance of sustainable socio technical transitions a quasi evolutionary model of socio technical transitions is described in which regimes face selection pressures continuously differentiated transition contexts determine the form and direction of regime change in response to these pressures the articulation of pressures and the degree to which responses are coordinated and based on resources available within the regime define the transition context four alternative contexts are described endogenous renewal re orientation of trajectories emergent transformation and purposive transitions agency and power in the governance of regime transformation are analysed power to affect change depends on regime membership the distribution of resources for change and expectations

incumbents diversification and cross sectorial energy industry dynamics abstract within the sustainability transitions literature established mature or incumbent firms have been stereotyped as locked in to socio technical regimes however we believe regimes have been black boxed and few studies have explored incumbents responses to transition processes this article aims to achieve an improved understanding of incumbents in established energy sectors and their extent of involvement in other niche energy sectors to this avail we analyze data from a first of its kind survey of 133 incumbent firms in norway s two main energy sectors namely oil gas and hydropower providing inter temporal dimensions our data covers incumbents diversification activities beyond their primary sector both in the past cancelled activities present ongoing activity in secondary sectors and future ambitions of diversification and also distinguishes between producers and product service suppliers by incorporating insights on firm diversification our analysis sheds new light on the complex transformation processes associated with sustainability transitions empirical results show considerable heterogeneity in incumbents responses to changing selection pressures which can be explained by recognition that windows of opportunity are opening and some incumbents see potential to leverage their resources and capabilities to capture value in new niche energy sectors in both domestic and international markets

industrial governance structures innovation strategies and the case of japan sectoral or cross national comparative analysis in comparative research on industrial policy strategies attention has shifted from national level variables to sectoral variables in both the description and the explanation of policy the sectoral literature however lacks analytic focus and has provided little systematic insight into the causes of cross sectoral variance in governance structures and policy strategies based on recent contributions to the economics and sociology of formal organizations this article attempts to sharpen the concept of industrial sector and to provide a rationale for why sectoral structures and strategies vary next it develops a synthetic explanatory framework that combines sectoral analysis and national domestic structuralism in order to account for industrial innovation strategies in advanced capitalist countries in the final section the fruitfulness of this approach is illustrated by developing a new account of japan s success and failure in industrial innovation an account that overcomes the contradictions among the main alternatives offered in the past the key objective of the article however is to develop a new set of theoretical hypotheses for cross national research not a rigorous empirical test of its main propositions

asset prices and trading volume in a beauty contest speculators buy an asset hoping to sell it later to investors with higher private valuations if agents are uncertain about the distribution of private valuations and about the beliefs of others about this distribution a beauty contest with an infinite hierarchy of beliefs arises under harsanyi s assumption of a common prior the infinite beliefs hierarchy is readily solved using bayes law this paper shows that common knowledge of the beliefs formation rule mapping the private valuation of each agent into his first order belief also simplifies the beliefs hierarchy while allowing for disagreement among agents we analyse the resulting speculation in a stylized asset market several statistics computed only from readily observable quote return and volume data are evaluated in terms of their power to discriminate between genuine disagreement and the harsanyian case only statistics that relate volume and volatility or volume and changes in best offers have the necessary discriminatory power

on the real effects of short and long run inflation and relative sector price variability some empirical evidence using the kalman filter this paper evaluates empirically the effects of sector relative price variability and short run and long run inflation on the growth rate of real output in the united states since 1947 also permanent and transitory estimates are constructed to evaluate the effects of unanticipated movements in sector relative price on the growth rate of real output the results show a statistically significant inverse relationship beween the growth rate of real output and transitory sector relative price variability and anticipated long run inflation and a direct relationship between the growth rate of real output and unanticipated short run inflation

conditional relative price variance and its determinants open economy evidence from germany the authors present empirical tests of two hypothesis derived from an open economy version of the multimarket equilibrium model the first hypothesis holds that the conditional relative price variance is positively related to the variance of domestic monetary and foreign nominal and real shocks the second hypothesis claims a negative impact of an increase in conditional relative price variance on normal output in contrast to earlier studies the authors use direct measures of conditional relative price variance based on arch estimates the authors results show that both hypotheses are consistent with german data copyright 1991 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

conglomerate mergers as defense against the risk of relative price variability this paper studies the effects of the risk of relative price variability on the optimal structure of a firm s cash flows with an application of portfolio theory it is suggested that when relative price risk is greater it is optimal for the management to diversify at the margin and emphasize economies of scale or scope when the risk is smaller conglomerate mergers should therefore be positively associated with relative price risk given the variables affecting mergers as a whole empirical evidence is found to lend support to the theory the inflation rate explains conglomerate mergers even better which suggests that relative price risk may constitute another real resource cost of inflation

smart grids and the transformation of the electricity sector ict firms as potential catalysts for sectoral change abstract the sustainability challenges associated with increasing demand and generation of electricity require a far reaching transformation of the energy system smart grid technologies are expected to play a major role in such sectoral transformation while a growing body of literature is concerned with the dynamics and particularities of sectoral transformation most contributions have focused on exogenous shocks or new technological developments as drivers of change this paper complements the existing perspectives by exploring the role of actors as catalysts for transformation within the field of smart grid we study the transformative influence of ict firms on the energy sector in europe more specifically we analyze actor participation in 450 european smart grid projects between 2000 and 2011 as well as acquisitions in the field we find that incumbent firms from the ict sector have gained influence and drive transformation through the creation of variety in terms of technology business models and value chains as a strategic reaction electricity sector incumbents have recently acquired many start ups specialized in ict technology and thus expanded their competence base we conclude that entrants from another sector can be important catalysts for sectoral transformation and should be analyzed more systematically in transition studies

interdependences in the intrafirm diffusion of technological innovations confronting the rational and social accounts of diffusion this article investigates the intrafirm diffusion of technological innovations and the interdependences that exist among rival firms in this process previous research has offered two potential explanations for these interdependences social accounts in which they result from institutional pressures and rational accounts in which firms are interdependent as a result of how adoption by rivals affects expectations about the profitability of the technology the article offers two contributions first we propose a competitive interaction mechanism that is consistent with the fundamentals of rational accounts of diffusion second the empirical analysis shows the dominance of the proposed rational mechanism over social accounts of innovation diffusion in the generation of interdependences in the process of intrafirm diffusion

privatization and changes in welfare costs of inflation the case of entel argentina abstract in a country with permanent deficit driven inflation problems the proceeds from privatization may translate into potential reductions of the seigniorage needed to finance a given a level of government expenditure the changes in welfare costs of inflation brought about by divestiture are quantified in a monetary model in an argentine case study these changes were found to be small both in terms of gdp and as a percentage of seigniorage revenue within the model this is mainly explained by the low values encountered for the elasticities of money demand with respect to expected inflation and by the exclusion of considerations about unanticipated inflation

interpreting the correlation between inflation and the skewness of relative prices a comment on bryan and cecchetti large literature in macroeconomics has examined how the inflation rate is related to the distribution of relative price changes this work has established a striking fact there is a strong correlation between inflation and the skewness of this distribution when inflation is high the distribution of relative price changes is typically skewed to the right when inflation is low it is skewed to the left the oil shocks of the 1970s are one example of this phenomenon inflation rose while a few goods oil products experienced especially large relative price increases but the inflationskewness correlation is not just a result of oil shock years this fact holds for many time periods and many countries e g vining elwertowski 1976 and ball mankiw 1995 for the united states amano macklem 1997 for canada de abreu lourenco and gruen 1995 for australia bryan and cecchetti 1999 argue that this fact need not be a fact at all because of small sample bias if true this is an important claim it would eliminate an apparently robust stylized fact that might otherwise hold a clue to understanding the causes or effects of inflation we are not however convinced by bryan and cecchetti s assertion our goal in this note is to explain why on its face bryan and cecchetti s claim is puzzling their paper presents a model in which there is an underlying true distribution of price changes and the observed distribution is obtained by sampling a subset of these price changes they show that the skewness of the sample distribution may be correlated with the sample mean even if there is no skewness in the population distribution this model however does not capture the reality of how price indices are constructed it is not the case that there are a large number of sectors and the government computes the cpi by sampling a small number of them instead the government measures prices in all sectors of which there may be a small or large number depending on the level of disaggregation the observed correlation of the mean and skewness is based on the full population of sectors so small sample bias does not appear to be possible because the data used to construct price indices are comprehensive one cannot avoid the conclusion that the inflation skewness correlation is a fact 1 if the idea of small sample bias is not relevant here how should one interpret the numerical simulations presented by bryan and cecchetti the substance of their argument we believe is that it is easy to explain the correlation between inflation and skewness previous authors have worked hard to explain this fact ball and mankiw 1995 propose that this correlation can be explained with menu cost models of price adjustment while balke and wynne 1996 argue that it can be explained by a multisector real business cycle model by contrast bryan and cecchetti generate the inflation skewness correlation in a much simpler model although it would be wrong to interpret their results as showing that the correlation doesn t exist one could plausibly interpret them as showing that this correlation doesn t prove anything as they put it such statistics are not useful in distinguishing sticky from flexible price setting behavior in macroeconomic models to evaluate this argument it helps to step back and review the motivation behind the ball mankiw and balke wynne theories the starting point for these authors is the classical theory of price determination central to this theory is the classical dichotomy relative prices are determined by real factors and the aggregate price level is determined by monetary factors specifically if there are n sectors in the economy there are n 1 relative prices real variables such as shifts in demand and costs in the various sectors determine these n 1 prices using any good or combination of goods as the numeraire the aggregate price level is determined by the supply and demand for money this idea is summarized by the quantity equation mv 5 py the n 1 relative prices and the price level which equals the average of all nominal prices together determine the n nominal prices in this classical model there is no obvious reason that the behavior of the aggregate price level is related to the distribution of relative prices if m v and y remain constant then p is constant and any shifts in the distribution of relative prices do not influence the price level to explain the observed inflation skewness correlation one must explain how the economy differs from this classical baseline balke and wynne offer one story for the inflationskewness correlation in their model certain shocks to the economy generate both skewness in the relative price distribution and changes in aggregate output for instance when opec raised oil prices relative prices in energy related sectors rose by 50 or more balanced by smaller relativeprice decreases in the rest of the economy this generated

on inflation and real price variability this paper studies the consequences of costly price adjustments for the variability of real prices accompanying inflation for constant elasticity demand and cost of production it is shown that a higher demand a lower cost of production or a lower cost of price adjustment leads to less intertemporal variability of real prices if the marginal cost of production does not increase too fast then the average real price is less than the real price that would prevail in the absence of inflation additionally a higher demand a lower cost of production or a lower cost of price adjustment leads to a higher level of real prices

inflation and relative price variability in yugoslavia abstract granger causality tests show that inflation granger causes relative price variability but the feedback relationship cannot be excluded

variability of inflation and the dispersion of relative prices evidence from the chinese hyperinflation of 1946 1949 abstract this paper uses data from the chinese hyperinflation of 1946 1949 to focus on the relationship between the variability in the general price level and the dispersion in relative prices the issue is important because it bears on the natural rate hypothesis which supports the postulate that these two monetary variables are independent our results reinforce the bulk of previous evidence which suggests a positive correlation between the variation in inflation rate and the dispersion in relative prices during inflationary episodes

customer power strategic investment and the failure of leading firms why might firms be regarded as astutely managed at one point yet subsequently lose their positions of industry leadership when faced with technological change we present a model grounded in a study of the world disk drive industry that charts the process through which the demands of a firm s customers shape the allocation of resources in technological innovation a model that links theories of resource dependence and resource allocation we show that established firms led the industry in developing technologies of every sort even radical ones whenever the technologies addressed existing customers needs the same firms failed to develop simpler technologies that initially were only useful in emerging markets because impetus coalesces behind and resources are allocated to programs targeting powerful customers projects targeted at technologies for which no customers yet exist languish for lack of impetus and resources because the rate of technical progress can exceed the performance demanded in a market technologies which initially can only be used in emerging markets later can invade mainstream ones carrying entrant firms to victory over established companies

technological innovations and sectoral change transformative capacity adaptability patterns of change an analytical framework following up on recent debates about sectoral systems of innovation and production the paper introduces a heuristic framework for analyzing and explaining distinct patterns of technology based sectoral change the concept is based on two interrelated influencing factors the first is the sectoralspecific transformative capacity of new technologies themselves that is their substantial or incremental impact on socioeconomic and institutional change in a given sectoral system the second is the sectoral adaptability of socioeconomic structures institutions and actors confronted with the opportunities presented by new technologies the first factor the sectoral transformative capacity of new technologies enables us to identify the technology based pressure to change and adjust the structural institutional and organizational architectures of the sectoral system the second complementary factor sectoral adaptability helps us to discern the distinct social patterns of anticipating and adopting this technology based pressure the specific interplay between the two influencing factors creates distinguishable modes of sectoral transformation ranging from anticipative and smooth adjustments to reactive and crisis ridden patterns of change even processes of radical sectoral change continue over longer periods of mismatch and are characterized by numerous and mostly gradual organizational structural and institutional transformations

relative price changes as aggregate supply shocks this paper proposes a theory of supply shocks or shifts in the short run phillips curve based on relative price changes and frictions in nominal price adjustment when price adjustment is costly firms adjust to large shocks but not to small shocks and so large shocks have disproportionate effects on the price level therefore aggregate inflation depends on the distribution of relative price changes inflation rises when the distribution is skewed to the right and falls when the distribution is skewed to the left we show that this theoretical result explains a large fraction of movements in postwar u s inflation moreover our model suggests measures of supply shocks that perform better than traditional measures such as the relative prices of food and energy

a proposition on short run departures from the law of one price unanticipated inflation relative price dispersion and commodity arbitrage abstract this paper proposes an explanation of short run departures from the law of one price based on the characteristics of the inflationary process and changes in the distribution of relative prices unexpected inflation gives rise to volatility of relative prices the more unexpected and hence uneven the rate of inflation the greater the difficulty in discerning from a given structure of relative prices commodity arbitrage opportunities which may be expected to persist and those transient opportunities which do not warrant a firm s incurring fixed costs of arbitrage an illustration portrays a risk averse firm confronting an international arbitrage opportunity

diffusion of general purpose technologies understanding patterns in the electrification of us manufacturing 1880 1930 i examine the diffusion of the electric motor between 1880 and 1930 i find that long lag times are determined by the degree of technical difficulty in application after solutions became available electrification generally proceeded rapidly to make this claim i explore three industries urban transit printing and paper making i identify points at which viable electric solutions to particular problems were found and examine adoption patterns both before and after these events the explanation contrasts with common demand side explanations such as costly user adaptation or information diffusion and imposes conditions on the application of standard supply side models the results are particularly important when examining the diffusion of broadly defined technological categories such as general purpose technologies in the history of diffusion of many innovations one cannot help being struck by two characteristics of the diffusion process its apparent overall slowness on the one hand and the wide variations in the rates of acceptance of different inventions on the other rosenberg 1972 191 copyright 2005 oxford university press

market structure and price flexibility abstract the relationship between market form and price adjustment patterns is examined by using disaggregated price data for mexico over the 1940 1984 period frequency of price adjustment and characteristics of goods and industries appear to be related as predicted by menu cost and customer market models the pattern of response followed by individual prices to inflationary shocks is related to their frequency of price adjustment the typical pattern of response to small and large shocks may differ contrary to predictions based on models with overlapping contracts in addition the empirical results have implications for the relationship between inflation and relative price variability

experimental development of sealed bid auction theory calibrating controls for risk aversion we offer a brief survey of bidding theory in high price auctions of experimental studies of behavior in such auctions and of the interplay between the design and results of the experiments and efforts to further develop the theory two new series of experiments are reported the first applies a convex transformation of payoffs in an attempt to induce a lowering of subject bids as if the bidders had become less risk averse the second applies a method for inducing any prespecified utility function for risky choices on an individual we use it to induce as if risk neutral behavior both series use baseline control to calibrate the hypothesized effect of the procedures on riskaverse behavior

theorizing path dependence a review of positive feedback mechanisms in technology markets regional clusters and organizations the concept of path dependence has often been criticized as vague and only narrowly applicable although we can find some very refined definitions of the concept we also find a wide range of empirical phenomena being described as path dependent we argue that more detailed accounts of the positive feedback mechanisms that form paths can take path dependence beyond this state of being overdetermined but under specified reviewing three well described cases of path dependent dynamics in technology markets regional clustering and organizations we define a core set of positive feedback mechanisms that constitute path dependence at different analysis levels and clarify the relationship between positive feedback and increasing returns we show that path dependent processes that is processes driven by positive feedback that veer toward rigidity or lock in can be but do not have to be found under many labels including structural inertia coevolution or institutional persistence we conclude that a precise definition of path dependence does not need to be at odds with the concept s widespread use in understanding organizational and industrial development processes copyright 2013 the author 2012 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

agricultural and financial market interdependence in the short run a theoretical model capable of examining the effects of various monetary policies on agriculture is developed results from comparative static experiments with the model show that a restrictive monetary policy may adversely affect agriculture results from the theoretical model are compared with earlier studies and are empirically investigated using vector autoregression techniques in general empirical analysis supports the theoretical developments

russia s innovation policy stubborn path dependencies and new approaches abstract for the last twenty years russia has been struggling to turn itself into an efficient market economy innovation and technological development are considered to be one of the best ways to achieve impressive results the country has succeeded in retaining certain strengths of the soviet science and technology system but it has often failed to address the former weaknesses and emerging challenges there are a number of external and internal factors that make reforms inevitable and urgent in the last five six years the political leadership has started an unprecedented attempt to reverse the negative trends and boost russia s innovation performance this paper studies the new policy approaches and suggests several others that might be considered useful at this stage of the country s development this work contributes to the wider debate on the heterogeneity of national innovation systems and adaptation of the respective analytical approach to the study of technological development of the emerging economies it also provides a detailed review of the literature and data sources on the russian science and technology and aims to start filling in the gap in this seriously understudied research area

relative prices and money a vector autoregression on brazilian data recent data on brazilian agricultural prices industrial prices and money supply are analyzed in a vector autoregression the empirical findings show strong one way granger type causality from money supply to agricultural prices while feedback is observed between industrial prices and money supply under the usual monetarist ordering of contemporaneous innovation covariance agricultural prices do not adjust faster than industrial prices to a shock in the money supply

intercountry differences in the relationship between relative price variability and average prices this paper provides new evidence on the relationship between relative price variability and inflation the model uses a consistently defined data set for nine european countries it benefits from the inclusion and testing of the effects of macroeconomic variables and the incorporation into the measures of inflation and dispersion adjustments for timeliness appropriate formulas and proximity the general findings of an effect on relative price variability by the macroeconomic environment and negative coefficients on unexpected inflation are supported by their occurrence in models estimated by seemingly unrelated regression and a robust systems estimator

modeling regime dependent agricultural commodity price volatilities in stark contrast to financial markets relatively little attention has been given to modeling agricultural commodity price volatility in recent years numerous methodologies with various strengths have been proposed for modeling price volatility in financial markets we propose using a mixture of normals with unique garch processes in each component for modeling agricultural commodity prices while a normal mixture model is quite flexible and allows for time varying skewness and kurtosis its biggest strength is that each component can be viewed as a different market regime and thus estimated parameters are more readily interpreted we apply the proposed model to ten different agricultural commodity weekly cash prices both in sample fit and out of sample forecasting tests confirm that the two state nm garch approach performs better than the traditional normal garch model a significant and state dependent inverse leverage effect is detected only for pork in the regime where the price is expected to drop indicating the volatility in this regime tends to increase more following a realized price rise than a realized price drop

inflation and relative price variability short run vs long run abstract this paper uses recent developments in measuring correlation to examine the relationship between inflation and relative price variability rpv the results suggest that the positive correlation holds not only in the short run but also in the long run this finding has important implications for theoretical models that purport to explain this relationship such models must incorporate features that generate positive relationships that hold even in the long run

neutrality of inflation in the agricultural sector abstract the paper considers the effect of inflation on the relative prices of products traded in auction markets prices of us agricultural products are used for the period 1951 1981 since agricultural products are widely traded the real forces of supply and demand specific to agriculture are represented by foreign agricultural prices the exchange rate is entered as a separate variable influencing domestic agricultural prices trade between the usa and the ten countries included in the federal reserve board s trade weighted dollar is considered the empirical results are consistent with the hypothesis that inflation did not alter relative agricultural prices when the real forces of supply and demand and the exchange rate are held constant

relative prices and money further results for the united states empirical results support the hypothesis that agricultural prices respond faster than manufactured product prices to a change in money supply in the united states sims vector autoregression var technique was applied in examining this hypothesis the monte carlo integration method was used to test the significance of the impulse responses generated by the var technique

networks and innovation in a modular system lessons from the microcomputer and stereo component industries in this paper we examine theoretically and through case studies the phenomenon of the modular system which we distinguish from a product conceived of as a prepackaged entity or appliance we argue that such systems offer benefits on both the demand side and the supply side supply side benefits include the potential for autonomous innovation which is driven by the division of labor and provides the opportunity for rapid trial and error learning demand side benefits include the ability to fine tune the product to consumer needs and therefore blanket the product space more completely both of our case studies suggest that innovation in a modular system can lead to vertical and horizontal disintegration as firms can often best appropriate the rents of innovation by opening their technology to an outside network of competing and cooperating firms we conclude by speculating on the increased importance of modular systems in the future since flexible manufacturing and rising incomes are likely to increase the driving requisites of modular systems low economies of scale in assembly and sophisticated consumer tastes

market reforms and commodity price volatility the case of east african coffee market the goal of this paper is to examine the impact of commodity market reforms on producer price volatility using evidence from the east african coffee market the results based on time varying volatility models and key summary statistics show that coffee market reforms in the east african community eac are associated with changes in producer price volatility and volatility persistence at both country and regional levels however reforms were not the only cause of changes in price volatility the study further shows that reforms had different effects on prices volatilities of arabica and robusta varieties of coffee grown in individual eac countries these findings have wider implication for commodity market reforms and producer price stabilisation policies in the eac and coffee producing countries in sub sahara africa

relative price dispersion aggregate price movement and the natural rate of unemployment this paper develops a model of relative price stickiness and examines its implications for the relationship between relative prices inflation and the natural rate of unemployment estimation of the model demonstrates that causality in the relationship between relative and aggregate prices runs in both directions however microeconomic disturbances have been the primary source of relative price change variance over the postwar period and these micro disturbances have exerted a strong effect on inflation in the short run it also is shown that micro relative price change dispersion has had a significant influence on the natural rate of unemployment

nominal contracting in a world of uncertainty abstract this paper evaluates corporate sensitivity to relative price risk and inflation risk and suggests how the existence of various nominal contracts particularly debt and forward contracts may modify firm behavior under uncertainty by differentiating between the two types of price risk this paper demonstrates the distinct risk reduction functions served by forward contracts and debt debt primarily protects against inflation risk whereas forward contracts can be used to protect against relative price risk complications arise however because forward contracts which are denominated in nominal terms also have an impact on the firm s degree of inflation risk

expectations and commodity price dynamics the overshooting model monetary policy has important effects on agricultural commodity prices because though they are flexible other goods prices are sticky this paper formalizes the argument by applying the dornbusch overshooting model a decline in the nominal money supply is a decline in the real money supply in the short run it raises the real interest rate which depresses real commodity prices they overshoot their new equilibrium in order to generate an expectation of future appreciation sufficient to offset the higher interest rate these real effects which vanish in the long run also result from a decline in the money growth rate