new technology adoption in us telecommunications the role of competitive pressures and firm level inducements in this study we examine the reasons for the differential adoption levels of a new technology that of electronic switching across firms in the us telecommunications industry using theoretical postulates from the market structure inducements approach to firm behavior and the behavioral theory of the firm we propose that the incentives to adopt a new technology are positively related to the competitive pressures faced by a firm in its micro market negatively related to past levels of performance and positively related to slack availability our sample consists of 40 of the largest firms in the industry we use firm level data collected for the years 1973 1978 1981 1984 and 1987 and the results indicate strong support for our proposition our findings show that in general market effects via the mechanism of competitive pressures generated are strong in explaining inter firm variations in levels of technology adoption in the period since moves to deregulate the industry began however the firm level effects are equally strong if not stronger in explaining such variations both in the period leading up to the commencement of deregulatory moves and also immediately thereafter

cost reduction competition and industry performance in many markets firms compete over time by expending resources with the purpose of reducing their costs sometimes the cost reducing investments operate directly on costs in many instances they take the form of developing new products that deliver what customers need more cheaply therefore product development can have the same ultimate effect as direct cost reduction in fact if one thinks of the product as the services it delivers to the customer in the way that lancaster pioneered then product development often is just cost reduction

budget processes and commitment to fiscal discipline abstract we present a framework of investigation into the political economy of the budget process our model suggests that institutional rules governing the budget process can be found to limit the importance of fiscal illusion empirical evidence supports that proposition the choice of rules depends on the political environment as well as the dominant source of uncertainty in the budget process

macroeconomic forecasting in the euro area country specific versus area wide information abstract this paper compares several time series methods for short run forecasting of euro wide inflation and real activity using data from 1982 to 1997 forecasts are constructed from univariate autoregressions vector autoregressions single equation models that include euro wide and us aggregates and large model methods in which forecasts are based on estimates of common dynamic factors aggregate euro wide forecasts are constructed from models that utilize only aggregate euro wide variables and by aggregating country specific models the results suggest that forecasts constructed by aggregating the country specific models are more accurate than forecasts constructed using the aggregate data

patent length and the rate of innovation this paper models the effect of patent length on the rate of innovation and consumer welfare the authors find that the patent length that maximizes the rate of innovation exceeds that which maximizes consumer welfare they show a countervailing effect of patent length upon the size and frequency of innovation longer patents increase the size but decrease the frequency of innovation the patent lengths that maximize the rate of innovation and welfare represent balance points between size and frequency the divergence of the welfare maximizing and rate of innovation maximizing patent lengths has important policy implications that the authors briefly explore copyright 1996 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

the effects of oil price uncertainty on global real economic activity this paper investigates the effect of oil price uncertainty on global real economic activity using a quarterly vector autoregressive model with stochastic volatility in mean stochastic volatility allows oil price uncertainty to vary separately from changes in the level of oil prices and allows one to incorporate an extraneous indicator of oil price uncertainty such as realized volatility that greatly improves the precision of the estimated uncertainty series the estimation results show that an oil price uncertainty shock has negative effects on world industrial production all else equal for example it is shown that a doubling of oil price volatility is associated with a cumulative decline as high as 0 3 percentage points in world industrial production

nowcasting the real time informational content of macroeconomic data abstract a formal method is developed for evaluating the marginal impact that intra monthly data releases have on current quarter forecasts nowcasts of real gross domestic product gdp growth the method can track the real time flow of the type of information monitored by central banks because it can handle large data sets with staggered data release dates each time new data are released the nowcasts are updated on the basis of progressively larger data sets that reflecting the unsynchronized data release dates have a jagged edge across the most recent months

index investment and financialization of commodities the authors found that concurrent with the rapidly growing index investment in commodity markets since the early 2000s prices of non energy commodity futures in the united states have become incr

volatility spillovers between oil prices and stock sector returns implications for portfolio management abstract in this article we take a recent generalized var garch approach to examine the extent of volatility transmission between oil and stock markets in europe and the united states at the sector level the empirical model is advantageous in that it typically allows simultaneous shock transmission in the conditional returns and volatilities insofar as volatility transmission across oil and stock sector markets is a crucial element for portfolio designs and risk management we also analyze the optimal weights and hedge ratios for oil stock portfolio holdings with respect to the results our findings point to the existence of significant volatility spillover between oil and sector stock returns however the spillover is usually unidirectional from oil markets to stock markets in europe but bidirectional in the united states our back testing procedures finally suggest that taking the cross market volatility spillovers estimated from the var garch models often leads to diversification benefits and hedging effectiveness better than those of commonly used multivariate volatility models such as the ccc garch of bollerslev 1990 the diagonal bekk garch of engle and kroner 1995 and the dcc garch of engle 2002

realized volatility transmission the role of jumps and leverage effects this paper is the first to employ a multivariate extension of the lhar cj model for realized volatility of corsi and reno 2012 considering continuous and jump volatility components and leverage effects the model is applied to financial s p 500 commodity wti crude oil and forex us eur intraday futures data and allows new insights in the transmission mechanisms among these markets besides significant leverage effects we find that the jump components of all considered assets do not contain incremental information for the one step ahead realized volatility the volatility of s p 500 and us eur exchange rate futures exhibits significant spillovers to the realized volatility of wti moreover decreasing equity prices appear to increase volatility in other markets while strengthening of the us seems to calm down the crude oil market

oil shocks and external balances abstract we provide estimates of the effects of demand and supply shocks in the global crude oil market on several measures of oil exporters and oil importers external balances including the oil trade balance the non oil trade balance the current account capital gains and changes in net foreign assets nfa first we show that the effect of oil demand and supply shocks on the merchandise trade balance and the current account which depending on the source of the shock can be large depends critically on the response of the non oil trade balance our results provide evidence of an intermediate degree of international financial integration second we document the presence of large and systematic valuation effects in response to these shocks valuation effects overall tend to cushion the effect of oil demand and supply shocks on the nfa positions of oil exporters and oil importers third we quantify the overall importance of global business cycle demand shocks as well as oil market specific demand and supply shocks for external balances

understanding the large negative impact of oil shocks this paper oers a plausible explanation for the close link between oil prices and aggregate macroeconomic performance in the 1970s although this link has been well documented in the empirical literature standard economic models are not able to replicate this link when actual oil prices are used to simulate the models in particular standard models cannot explain the depth of the recession in 1974 75 and the strong revival in 1976 78 based on the oil price movements in that period this paper argues that a missing multiplier accelerator mechanism from standard models may hold the key

why don t oil shocks cause inflation evidence from disaggregate inflation data this paper uses disaggregate u s inflation data to evaluate explanations for the breakdown of the relationship between oil price shocks and consumer price inflation a data set with measures of inflation energy intensity labor intensity and sensitivity to monetary policy is constructed for 97 sectors that make up core cpi inflation a comparison of the 1973 85 and 1986 2006 time periods reveals that substitution away from energy use in production and monetary policy were both important with approximately two thirds of the change in response of inflation to oil shocks being due to reduced energy usage and one third to monetary policy we find no evidence that other factors such as changes in wage rigidities or changes in the persistence of oil shocks played a role

what central bankers need to know about forecasting oil prices central banks routinely use short horizon forecasts of the quarterly price of oil in assessing the global and domestic economic outlook we address a number of econometric issues specific to the construction of quarterly oil price forecasts in the united states and abroad we show that quarterly forecasts of the real price of oil from suitably designed vector autoregressive models estimated on monthly data generate the most accurate real time forecasts overall among a wide range of methods including quarterly averages of forecasts based on monthly oil futures prices no change forecasts and forecasts based on regression models estimated on quarterly data

innovation and industry evolution the theoretical literature on innovation has been concerned with a single innovation produced by a number of identical agents by contrast we consider a market in which one firm is the current incumbent while the remaining firms are challengers moreover we consider a sequence of innovations so that success does not imply that the successful firm reaps monopoly profits forever after but only until the next better innovation is developed we begin with a fully optimizing behavioral model and derive the equivalent of the schumpeterian process of creative destruction that is a firm enjoys temporary monopoly power but is soon overthrown by a more inventive challenger the essential point to grasp is that in dealing with capitalism we are dealing with an evolutionary process the fundamental impulse that sets and keeps the capitalist engine in motion comes from the new consumers goods the new methods of production or transportation the new markets the new forms of industrial organization that capitalist enterprise creates schumpeter 1942 pp 82 83

what do we learn from the price of crude oil futures summary despite their widespread use as predictors of the spot price of oil oil futures prices tend to be less accurate in the mean squared prediction error sense than no change forecasts this result is driven by the variability of the futures price about the spot price as captured by the oil futures spread this variability can be explained by the marginal convenience yield of oil inventories using a two country multi period general equilibrium model of the spot and futures markets for crude oil we show that increased uncertainty about future oil supply shortfalls under plausible assumptions causes the spread to decline increased uncertainty also causes precautionary demand for oil to increase resulting in an immediate increase in the real spot price thus the negative of the oil futures spread may be viewed as an indicator of fluctuations in the price of crude oil driven by precautionary demand an empirical analysis of this indicator provides evidence of how shifts in the uncertainty about future oil supply shortfalls affect the real spot price of crude oil copyright 2010 john wiley sons ltd

political deadlocks and distributional information the value of the veil contractarian normative theory relies on the veil of ignorance construct to generate the political consensus required for its theories of justice by eliminating distributional information the veil is presumed to facilite consensus building by reducing conflict over the distributional effects of proposed constitutional rules or institutions this paper explores the extent to which excessive distributional information might also impede the ordinary day to day decision making of democratic institutions our analysis suggests that distributive information makes political deadlocks under majority rule more likely statistical evidence suggests that the efficacy of the u s congress has been reduced by the dramatic increase in distributional information made available to it over the past twenty five years

dynamics of oil price precious metal prices and exchange rate this study examines the co movements and information transmission among the spot prices of four precious metals gold silver platinum and palladium oil price and the us dollar euro exchange rate we find evidence of a weak long run equilibrium relationship but strong feedbacks in the short run the spot precious metal markets respond significantly but temporarily to a shock in any of the prices of the other metal prices and the exchange rate furthermore we discover some evidence of market overreactions in the palladium and platinum cases as well as in the exchange rate market in conclusion whether there are overreactions and re adjustments or not investors may diversify at least a portion of the risk away by investing in precious metals oil and the euro policy implications are provided

oil prices and the terms of trade abstract the combination of substantial terms of trade variability and unstable correlation patterns of trade prices with output and trade volumes has led some to suggest a break in the link between trade volumes and prices we find that oil accounts for much of the variation in the terms of trade over the last twenty five years and its quantitative role varies significantly over time and since our dynamic general equilibrium model predicts that the economy responds differently to oil supply shocks than to other shocks changes in their relative importance helps to account for the unstable correlations in the data

planning to cheat eu fiscal policy in real time using real time data from europe s stability and convergence programs we explore how fiscal plans and their implementation in the eu are determined we find that 1 implemented budgetary adjustment falls systematically short of planned adjustment and this shortfall increases with the projection horizon 2 variability in the eventual fiscal outcomes is dominated by the implementation errors 3 there is a limited role for traditional political variables 4 stock flow adjustments are more important when plans are more ambitious and 5 most importantly both the ambition in fiscal plans and their implementation benefit from stronger national fiscal institutions we emphasize also the importance of credible plans for the eventual fiscal outcomes roel beetsma massimo giuliodori and peter wierts

forecasting oil prices high frequency financial data are indeed useful abstract the paper examines the importance of combining high frequency financial information along with the oil market fundamentals in order to gain incremental forecasting accuracy for oil prices inspired by french et al 1987 and bollerslev et al 1988 who maintain that future asset returns are also influenced by past volatility we use daily volatilities and returns from financial and commodity markets to generate real out of sample forecasts for the monthly oil futures prices our results convincingly show that although the oil market fundamentals are useful for long run forecasting horizons the combination of the latter with high frequency financial data significantly improve oil price forecasts by reducing the rmse of the no change forecast by approximately 68 results are even more impressive during the oil price collapse period of 2014 15 these findings suggest that we cannot ignore the information extracted from the financial markets when forecasting oil prices our results are both statistically and economically significant as suggested by several robustness tests

quantifying the speculative component in the real price of oil the role of global oil inventories abstract one of the central questions of policy interest in recent years has been how many dollars of the inflation adjusted price of oil must be attributed to speculative demand for oil stocks at each point in time we develop statistical tools that allow us to address this question and we use these tools to explore how the use of two alternative proxies for global crude oil inventories affects the empirical evidence for speculation notwithstanding some differences overall these inventory proxies yield similar results while there is evidence of speculative demand raising the price in mid 2008 by between 5 and 14 dollars depending on the inventory specification there is no evidence of speculative demand pressures between early 2003 and early 2008 as a result current policy efforts aimed at tightening the regulation of oil derivatives markets cannot be expected to lower the real price of oil in the physical market we also provide evidence that the libyan crisis in 2011 shifted expectations in oil markets resulting in a price increase of between 3 and 13 dollars depending on the inventory specification with regard to tensions with iran in 2012 the implied price premium ranges from 0 to 9 dollars

modeling volatility and correlations between emerging market stock prices and the prices of copper oil and wheat abstract increased financial integration between countries and the financialization of commodity markets are providing investors with new ways to diversify their investment portfolios this paper uses varma agarch and dcc agarch models to model volatilities and conditional correlations between emerging market stock prices copper prices oil prices and wheat prices the dynamic conditional correlation model is found to fit the data the best and used to generate dynamic conditional correlations hedge ratios and optimal portfolio weights emerging market stock prices and oil prices display leverage effects where negative residuals tend to increase the variance conditional volatility more than positive ones correlations between these assets increased considerably after 2008 and have yet to return to their pre 2008 values on average oil provides the cheapest hedge for emerging market stock prices while copper is the most expensive but given the variability in the hedge ratios one should probably not put too much emphasis on average hedge ratios

over optimism in forecasts by official budget agencies and its implications the paper studies forecasts of real growth rates and budget balances made by official government agencies among 33 countries in general the forecasts are found i to have a positive average bias ii to be more biased in booms and iii to be even more biased at the 3 year horizon than at shorter horizons this over optimism in official forecasts can help explain excessive budget deficits especially the failure to run surpluses during periods of high output if a boom is forecasted to last indefinitely retrenchment is treated as unnecessary many believe that better fiscal policy can be obtained by means of rules such as ceilings for the deficit or better yet the structural deficit but we also find iv countries subject to a budget rule in the form of euroland s stability and growth pact sgp make official forecasts of growth and budget deficits that are even more biased and more correlated with booms than do other countries this effect may help explain frequent violations of the sgp the question becomes how to overcome governments tendency to satisfy fiscal targets by wishful thinking rather than by action chile in 2000 created structural budget institutions that may have solved the problem independent expert panels insulated from political pressures are responsible for estimating the long run trends that determine whether a given deficit is deemed structural or cyclical the result is that chile s official forecasts of growth and the budget have not been overly optimistic even in booms unlike many countries in the north chile took advantage of the 2002 7 expansion to run budget surpluses and so was able to ease in the 2008 9 recession

fiscal forecasts and political systems a legislative budgeting perspective which are the institutional and constitutional settings that best reduce the tendency to manipulate fiscal forecasts this paper addresses the question by examining the quality of fiscal forecasts at different stages of the budget process in 13 european union countries by using annual forecast vintages 1999 2013 from stability and convergence programmes both the role of political structures and the balance of power between the executive and the legislature are assessed as determinants of systematic forecasting errors the findings suggest that the forecasting bias is more effectively countered in presidential and semi presidential systems in parliamentary systems with strong bicameralism and when executive legislature relations are constrained by checks and balances confirmation of these results is also provided by linking our approach to the fiscal institutionalist approach based on the form of fiscal governance and the stringency of fiscal rules in terms of institutional capacity if fiscal rules and legislative organizational and research capacity counter the executive s monopoly of fiscal forecasting strengthening the legislature s formal powers negatively influences the fiscal forecast accuracy indeed strategic considerations may induce the executive to anticipate the legislature s amendment or rejection of the tabled budget by means of more favourable economic and fiscal assumptions the crisis and its urgencies crisis seem to have weakened the effect of institutional executive legislature relations on fiscal forecast accuracy

the effects of crude oil shocks on stock market shifts behaviour a regime switching approach abstract in this paper we develop a two regime markov switching egarch model introduced by henry henry o 2009 regime switching in the relationship between equity returns and short term interest rates journal of banking and finance 33 405 414 to examine the relationship between crude oil shocks and stock markets an application to stock markets of uk france and japan over the sample period january 1989 to december 2007 illustrates plausible results we detect two episodes of series behaviour one relative to low mean high variance regime and the other to high mean low variance regime furthermore there is evidence that common recessions coincide with the low mean high variance regime in addition we allow both real stock returns and probability of transitions from one regime to another to depend on the net oil price increase variable the findings show that rises in oil price has a significant role in determining both the volatility of stock returns and the probability of transition across regimes

estimating and forecasting the real prices of crude oil a data rich model using a dynamic model averaging dma approach given that oil price fluctuations have been of great interest for macroeconomics in the recent years due to its important implications for future inflation economic growth and policy making the aim of this paper is to estimate and forecast west texas intermediate wti crude oil prices using a large monthly dataset that covers the period from march 1983 to december 2011 to achieve this aim forecasting with factor models offers a usual approach that utilizes large datasets however a forecasting model which simply includes all factors in state space equation and does not allow for time varying may be not suitable with a highly volatile market such as oil market to overcome these limitations an approach that accounts both for parameter and model uncertainty is employed in particular this study uses the dynamic model averaging dma approach suggested by koop and korobilis 2012 the key element of the dma approach is that it allows both for model and parameter to vary at each point of time by doing so the dma is robust to structural breaks empirical findings show that dma approach outperforms any other alternative model used in the forecasting exercise results also show that there is model but not parameter variation in this oil price forecasting exercise finally the findings suggest that the dma approach provides a better proxy of expected spot prices than future prices

rational ignorance rational voter expectations and public policy a discrete informational foundation for fiscal illusion this paper demonstrates that rational ignorance properly defined allows the possibility that fiscal illusion affects policies in a democracy the implications of rational ignorance are examined in a setting where voters are assumed to completely understand the fiscal environment and make perfect use of any information that they possess in this setting it is demonstrated that ignorance may be rational manipulated and generate biased expectations over fiscal parameters

macroeconomic forecasting with mixed frequency data forecasting output growth in the united states many macroeconomic series such as u s real output growth are sampled quarterly although potentially useful predictors are often observed at a higher frequency we look at whether a mixed data frequency sampling midas approach can improve forecasts of output growth the midas specification used in the comparison uses a novel way of including an autoregressive term we find that the use of monthly data on the current quarter leads to significant improvement in forecasting current and next quarter output growth and that midas is an effective way to exploit monthly data compared with alternative methods

on the competitive pressure created by the diffusion of innovations abstract we consider the decision of a dominant firm to adopt a sequence of potential cost reducing innovations where the latest technology adopted diffuses to a competitive fringe at an exogenous rate with price competition on the product market the leader optimally spaces apart the adoption dates of successive innovations so the industry is characterized by schumpetarian cycles of alternating innovation and diffusion an increase in the rate of diffusion has ambiguous effects on innovative activity and up to a point hastens the pace of innovation these results may however be reversed in the case of quantity competition

are there gains from pooling real time oil price forecasts the answer as to whether there are gains from pooling real time oil price forecasts depends on the objective the approach of combining five of the leading forecasting models with equal weights dominates the strategy of selecting one model and using it for all horizons up to two years

realized volatility transmission between crude oil and equity futures markets a multivariate har approach this paper differs from extant literature because it studies volatility co movements with a multivariate orthogonalized har model a flexible specification for the time series of realized volatility which is able to identify short mid and long term spillover effects we examine volatility transmission mechanisms using high frequency data of the stock index futures on s p 500 nikkei 225 ftse 100 and the futures on the west texas intermediate crude oil during the period from september 2002 to september 2012 considering the full sample the short term volatility of the equity futures contains information about future oil volatility incremental to the information inherent in the time series of oil volatility on the other hand weekly and monthly volatilities do not exhibit a significant spillover effect breaking the whole sample into three subsamples no significant granger causalities are observed in the pre crisis period while in the crisis time and its aftermath we document that the us and uk equity market volatilities to granger cause the oil futures volatility which itself leads the japanese market in terms of magnitude we observe an increase in the short term volatility spillover over time studying the residuals of the har transmission models within a ccc dcc garch framework reveals increasing instantaneous correlation between the energy and equity volatilities in the course of time

dynamic spillovers of oil price shocks and economic policy uncertainty this study examines the dynamic relationship between changes in oil prices and the economic policy uncertainty index for a sample of both net oil exporting and net oil importing countries over the period 1997 01 2013 06 to achieve that an extension of the diebold and yilmaz 2009 2012 dynamic spillover index based on structural decomposition is employed the results reveal that economic policy uncertainty oil price shocks responds negatively to aggregate demand oil price shocks economic policy uncertainty shocks furthermore during the great recession of 2007 2009 total spillovers increase considerably reaching unprecedented heights moreover in net terms economic policy uncertainty becomes the dominant transmitter of shocks between 1997 and 2009 while in the post 2009 period there is a significant role for supply side and oil specific demand shocks as net transmitters of spillover effects these results are important for policy makers as well as investors interested in the oil market

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

why a stubborn conservative would run a deficit policy with time inconsistent preferences a conservative government in favor of a low level of public consumption knows that it will be replaced by a government in favor of a larger level of public consumption we show that the resulting level of public consumption is in between the levels the two governments would choose if each were in power both in the present and in the future in particular we show that if the conservative government is more stubborn in a particular sense than the succeeding government the conservative government will borrow more than it would had it remained in power in the future

oil and the macroeconomy since the 1970s economists have long been intrigued by empirical evidence that suggests that oil price shocks may be closely related to macroeconomic performance this interest dates back to the 1970s the 1970s were a period of growing dependence on imported oil unprecedented disruptions in the global oil market and poor macroeconomic performance in the united states thus it was natural to suspect a causal relationship from oil prices to u s macroeconomic aggregates since then a large body of work has accumulated that purports to establish this link on theoretical grounds and to provide empirical evidence in its support we do not attempt a comprehensive survey of this literature but rather provide an idiosyncratic synthesis of what we view as the key issues in this debate and the insights gained over the last 30 years the timing seems right for such an account although the experience of the 1970s continues to play an important role in discussions of the link between oil and the macroeconomy there have been a number of new oil price shocks since the 1970s notably the 1986 collapse of oil prices and the 2000 boom in oil prices as well as the oil price increases associated with the 1990 1991 gulf war and the 2003 iraq war given this richer case history we are arguably in a better position than two decades ago to distinguish the idiosyncratic features of each oil crisis from the systematic effects increases in oil prices have been held responsible for recessions periods of excessive inflation reduced productivity and lower economic growth in this paper we review the arguments supporting such views first we highlight some of the conceptual difficulties in assigning a central role to oil price shocks in explaining

forecasting oil price movements with crack spread futures abstract in oil markets the crack spread refers to the crude product price relationship refiners are major participants in oil markets and they are primarily exposed to the crack spread in other words refiner activity is substantially driven by the objective of protecting the crack spread moreover oil consumers are active participants in the oil hedging market and they are frequently exposed to the crack spread from another perspective hedge funds are heavily using crack spread to speculate in oil markets based on the high volume of crack spread futures trading in oil markets the question we want to raise is whether the crack spread futures can be a good predictor of oil price movements we investigated first whether there is a causal relationship between the crack spread futures and the spot oil markets in a vector error correction framework we found the causal impact of crack spread futures on spot oil market both in the long and the short run after april 2003 where we detected a structural break in the model to examine the forecasting performance we use the random walk model rwm as a benchmark and we also evaluate the forecasting power of crack spread futures against the crude oil futures the results showed that a both the crack spread futures and the crude oil futures outperformed the rwm and b the crack spread futures are almost as good as the crude oil futures in predicting the movements in spot oil markets

sticking to fiscal plans the role of institutions the rules based fiscal framework of the emu relies heavily on the development of medium term fiscal plans by the eu governments in this paper i present an empirical analysis of the deviations from the plans presented in the annual stability and convergence programs i focus on projections for real gdp growth and general government balances revenues and spending at different time horizons i show that deviations from the projections presented in these programs since 1999 can be explained by institutional factors i e the form of fiscal governance and the stringency of fiscal rules

commodity prices interest rates and the dollar this paper sheds light on recent fluctuations in commodity prices we investigate whether a decline in real interest rates and the us dollar contributes to higher commodity prices and whether commodity prices display overshooting behavior in response to changes in real interest rates we analyze the behavior of real prices of crude oil food metals and industrial raw materials the analysis is based on structural var models estimated on quarterly data over the period 1990q1 2007q4 our results suggest that commodity prices increase significantly in response to reductions in real interest rates moreover oil prices and prices of industrial raw materials tend to display overshooting behavior in response to such interest rate changes the evidence also suggests that a weaker dollar leads to higher commodity prices shocks to interest rates and the dollar are found to account for substantial shares of fluctuations in commodity prices

competition imitation and growth with step by step innovation is more intense product market competition and imitation good or bad for growth this question is addressed in the context of an endogenous growth model with step by step innovations in which technological laggards must first catch up with the leading edge technology before battling for technological leadership in the future in contrast to earlier schumpeterian models in which innovations are always made by outsider firms who earn no rents if they fail to innovate and become monopolies if they do innovate here we find first that the usual schumpeterian effect of more intense product market competition pmc is almost always outweighed by the increased incentive for firms to innovate in order to escape competition so that pmc has a positive effect on growth second that a little imitation is almost always growth enhancing as it promotes more frequent neck and neck competition but too much imitation is unambiguously growth reducing the model thus points to complementary roles for competition anti trust policy and patent policy

improving fiscal policy in the eu the case for independent forecasts are official output forecasts biased we point out that official forecasts of output dynamics are crucial to the assessment of cyclically adjusted budget balances and provide evidence that in some euro area countries biased forecasts have played a thus far neglected role in generating excessive deficits we suggest that the forecast bias may be politically motivated and that forecasts produced by an independent authority would be better than in house ministry of finance forecasts for the purpose of monitoring budget formation and budget outcomes lars jonung and martin larch

legislative organization and government spending cross country evidence abstract the law of 1 n posits that an increase in the number of elected representatives fuels excessive government spending despite its wide acceptance as a stylized fact the law of 1 n has received only limited empirical scrutiny and the existing evidence for the american states provides mixed support for the thesis this paper examines the law of 1 n in bicameral and unicameral legislative structures using a cross section of democratic countries the results indicate that legislative size matters under both legislature structures but bicameralism dampens the 1 n effect relative to unicameralism

monetary policy response to oil price shocks how should monetary authorities react to an oil price shock this paper shows that in a noncompetitive economy policies that perfectly stabilize prices entail large welfare costs hence explaining the reluctance of policymakers to enforce them the policy trade off is nontrivial because oil energy is an input to both production and consumption as welfare maximizing policies are hard to implement and communicate i derive a simple interest rate rule that depends only on observables but mimics the optimal plan in all dimensions the optimal rule is hard on core inflation but accommodates oil price changes

forecasting oil price realized volatility using information channels from other asset classes motivated from ross 1989 who maintains that asset volatilities are synonymous to the information flow we claim that cross market volatility transmission effects are synonymous to cross market information flows or information channels from one market to another based on this assertion we assess whether cross market volatility flows contain important information that can improve the accuracy of oil price realized volatility forecasting we concentrate on realized volatilities derived from the intra day prices of the brent crude oil and four different asset classes stocks forex commodities and macro which represent the different information channels by which oil price volatility is impacted from we employ a har framework and estimate forecasts for 1 day to 66 days ahead our findings provide strong evidence that the use of the different information channels enhances the predictive accuracy of oil price realized volatility at all forecasting horizons numerous forecasting evaluation tests and alternative model specifications confirm the robustness of our results

public finance and welfare from the ignorance of the veil to the veil of ignorance abstract present day welfare states may survive as long as bureaucracies and governments can create optimistic illusions among taxpayers voters this setting is destined to fail and indirectly to open up the pathway for a constitutional welfare state mazzola and wicksell first offered a constitutional view on both public choice and public goods but the intellectual godfathers of the genuine alternative to the present welfare state are buchanan and tullock in the early sixties and rawls a decade later the virtuous circuit obligations entitlements rights which the institutions of present welfare states helped to make crumble may be restored behind the veil of ignorance

dynamic spillovers among major energy and cereal commodity prices abstract over the past decade the sharp increases in the prices of oil and agricultural commodities have raised serious concerns about the heightened volatility of these markets and the possible negative interactions between them this article deals with the dynamic return and volatility spillovers across international energy and cereal commodity markets it also examines the impacts of three types of opec news announcements on the volatility spillovers and persistence in these markets for this purpose we make use of the var bekk garch and var dcc garch models for the daily spot prices of eight major commodities including wti oil europe brent oil gasoline heating oil barley corn sorghum and wheat our results provide evidence of significant linkages between these energy and cereal markets moreover the opec news announcements are found to exert influence on the oil markets as well as on the oil cereal relationships finally we show that the persistence of volatility decreases increases for the crude oil and heating oil gasoline returns after accounting for the opec announcements in these multivariate garch models however the results are more mixed for the cereal markets overall our results can be used to improve the risk adjusted performance by having more diversified portfolios and also serve to hedge the oil risk more effectively