on the impacts of oil price fluctuations on european equity markets volatility spillover and hedging effectiveness the objective of this paper is to investigate the volatility spillovers between oil and stock markets in europe as not all industries are expected to be equally affected by oil price changes we conduct our study at both the aggregate as well as sector levels empirically we make use of a recently developed var garch approach which allows for transmissions in volatilities in addition we analyze the optimal weights and hedge ratios for oil stock portfolio holdings based on our results on the whole our findings show significant volatility spillovers between oil price and sector stock returns and suggest that a better understanding of those links is crucial for portfolio management in the presence of oil price risk

the effect of financial repression and enforcement on entrepreneurship and economic development abstract a general equilibrium model with heterogeneous agents with respect to wealth and ability shows that differences across countries in intermediation costs and enforcement generate differences in occupational choice firm size credit output and income inequality counterfactual experiments are performed for latin american european transition and high growth asian countries with empirical estimates of each country s financial frictions and united states values for all other parameters the results isolate the quantitative effect of these financial frictions in explaining the performance gap between each country and the united states and depend critically on whether a general equilibrium factor price effect is operative

effects of speculation and interest rates in a carry trade model of commodity prices abstract the paper presents and estimates a model of the prices of oil and other storable commodities a model that can be characterized as reflecting the carry trade it focuses on speculative factors here defined as the trade off between interest rates on the one hand and market participants expectations of future price changes on the other hand it goes beyond past research by bringing to bear new data sources survey data to measure expectations of future changes in commodity prices and options data to measure perceptions of risk some evidence is found of a negative effect of interest rates on the demand for inventories and thereby on commodity prices and positive effects of expected future price gains on inventory demand and thereby on today s commodity prices

financial intermediary coalitions abstract in this article an environment in which the investment opportunities of agents are private information is studied and it is shown that financial intermediaries arise endogenously within that environment it is established that financial intermediaries are part of an efficient arrangement in the sense that they are needed to support the authors private information core allocations these intermediaries which are coalitions of agents exhibit the following characteristics in equilibrium they borrow from and lend to large groups of agents they produce information about investment projects and they issue claims that have different state contingent payoffs than claims issued by ultimate borrowers

financial intermediation and endogenous growth an endogenous growth model with multiple assets is developed agents who face random future liquidity needs accumulate capital and a liquid but unproductive asset the effects of introducing financial intermediation into this environment are considered conditions are provided under which the introduction of intermediaries shifts the composition of savings toward capital causing intermediation to be growth promoting in addition intermediaries generally reduce socially unnecessary capital liquidation again tending to promote growth

relative prices and investment rates abstract we construct a panel for the price of aggregate investment over consumption and report the following observations 1 relative price differences across countries are large over the entire sample period and this conclusion is not affected by excluding non tradable consumption goods 2 relative price dispersion has decreased during the sample period 3 relative price changes are not persistent across periods while average price levels are moreover the persistence in relative price levels is higher for countries at low relative prices we show that the relative price of investment is negatively correlated with investment rates in a cross section of countries the standard one sector growth model is a natural framework to study quantitatively the effects of barriers to capital accumulation since there is a very simple mapping between barriers to investment and relative prices in this environment we simulate a calibrated version of the model in which barriers follow a stochastic process common to all countries and estimated using relative price data and obtain statistics for investment rates that closely resemble what we observe in the data in particular the model accounts for 90 of the 1985 gini index of relative investment rates and the decline in investment rate dispersion over time the model has two limitations as a theory of development first it cannot account for the income disparity in the data unless we assume unmeasured capital with barriers affecting the broad measure of capital second even under these extreme assumptions the model cannot account for the evolution of income disparity over time

on the links between stock and commodity markets volatility this paper investigates the links between price returns for 25 commodities and stocks over the period from january 2001 to november 2011 by paying a particular attention to energy raw materials relying on the dynamic conditional correlation dcc garch methodology we show that the correlations between commodity and stock markets evolve through time and are highly volatile particularly since the 2007 2008 financial crisis the latter has played a key role emphasizing the links between commodity and stock markets and underlining the financialization of commodity markets at the idiosyncratic level a speculation phenomenon is highlighted for oil coffee and cocoa while the safe haven role of gold is evidenced

financial frictions occupational choice and economic inequality we develop a quantitative theory of entrepreneurship income inequality and nancial frictions disciplined with household data from brazil the theory extends lucas 1978 by modeling heterogeneity in two skills working and managerial skills consistently with the evidence the theory implies three occupational categories workers employers and self employed entrepreneurs we nd that the correlation between working and managerial skills matters importantly for the distribution of earnings across occupations and for the quantitative implications of nancial frictions we also nd

public service employment and the public private wage differential in british regions successive forms of regional policy in the uk have sought to support the maintenance and creation of public sector employment opportunities in relatively disadvantaged regions nationally negotiated public sector pay rates mean that the private public pay gap is likely to be wider in lower demand regions this will be reinforced by the relative absence of private sector employment crowding out in such higher unemployment regions this paper investigates the association between private and public sector service employment using panel data for british regions and estimates regional public private wage differentials using british household panel survey data for 1991 to 1996 across britain private sector employment growth is weakly positively associated with higher public service employment growth but the association is stronger in scotland and the north of england the pattern of regional wage differentials found is consistent with lower crowding out in higher unemployment regions this suggests that reg

the relationship between energy and equity markets evidence from volatility impulse response functions this paper examines the relationship between the energy and equity markets by estimating volatility impulse response functions from a multivariate bekk model of the goldman sach s energy index and the sp in addition we also calculate the time varying conditional correlations and time varying dynamic hedge ratios from volatility impulse response functions we find that low sp however we find only a weak response from s p 500 volatility to energy price shocks moreover our dynamic hedge ratio analysis suggests that the energy index is generally a poor hedging instrument

volatility impulse response functions for multivariate garch models an exchange rate illustration we introduce a new concept of impulse response functions tracing the effects of independent shocks on volatility through time while avoiding typical orthogonalization and ordering problems in an empirical study of a bivariate foreign exchange fx rate series we use volatility impulse response functions to discuss the effects of central bank decisions such as direct interventions in the fx market or open market activities on fx market volatility comparing our concept with conditional moment profiles introduced by gallant et al gallant a r rossi p e tauchen g 1993 nonlinear dynamic structures econometrica 61 871 907 we show that for shocks affecting fx rates in an asymmetric way the difference between the two methodologies and their interpretation can be substantial

oil and the macroeconomy since world war ii all but one of the u s recessions since world war ii have been preceded typically with a lag of around three fourths of a year by a dramatic increase in the price of crude petroleum this does not mean that oil shocks caused these recessions evidence is presented however that even over the period 1948 72 this correlation is statistically significant and nonspurious supporting the proposition that oil shocks were a contributing factor in at least some of the u s recessions prior to 1972 by extension energy price increases may account for much of post opec macroeconomic performance

time varying volatility spillover between chinese fuel oil and stock index futures markets based on a dcc garch model with a semi nonparametric approach abstract this paper reveals some new evidence on the volatility spillover between fuel oil and stock index futures markets in china by considering its time variant feature time varying effect is specified by the legendre polynomials in a dcc garch model moreover the semi nonparametric snp approach accounting for marginal excess kurtosis and asymmetry is applied we find different time evolving patterns of volatility spillover across multiple periods due to the structural breaks the direction of mean volatility spillover is found to be bilateral moreover the strength of mean volatility spillover shows that the effect from stock index to fuel oil futures is much stronger than the other way around this implies that the stock index futures market plays a leading role in information processing these findings have important implications for the fuel oil stakeholders as well as risk management

volatility behavior of oil industrial commodity and stock markets in a regime switching environment abstract this study supplements previous regime switching studies on wti crude oil and finds two possible volatility regimes for the strategic commodity prices of brent oil wti oil copper gold and silver and the s p 500 index but with varying high to low volatility ratios the dynamic conditional correlations dccs indicate increasing correlations among all the commodities since the 2003 iraq war but decreasing correlations with the s p 500 index the commodities also show different volatility persistence responses to financial and geopolitical crises while the s p 500 index responds to both financial and geopolitical crises implications are discussed

which sectors make poor countries so unproductive which sectors are most responsible for the low total factor productivities of developing countries to answer this question we develop a new framework for sectoral development accounting applying this framework to the penn world table we find that in equipment construction and food the sectoral tfp differences between developing countries and the united states are much larger than in the aggregate however in manufactured consumption the sectoral tfp differences are about equal to the aggregate tfp differences and in services they are much smaller we show that our level of disaggregation allows us to reconcile the results of existing studies of sectoral productivity differences which have focused on noncomparable two sector decompositions of the aggregate data we also show that our results help shed light on existing theories of aggregate tfp differences

firm productivity innovation and financial development acknowledgment we are grateful to christopher kilby saul lizondo chris papageorgiou the strategy policy and review departments low income countries group the africa department s macro modeling debt and growth network and two anonymous referees for useful comments and suggestions kersting gratefully acknowledges financial support by the center for global leadership at the villanova school of business 1 introductioneconomists still struggle to explain the large differences in output per worker across countries the view that these differences are mostly the result of variations in investment rates has now largely been abandoned as cross country evidence suggests that total factor productivity tfp rather than capital accumulation accounts for observed per capita income differences hall and jones 1999 the largely unexplained cross country differences in tfp led to prescott s 1998 call for a theory of tfp in response barriers to innovation imitation and adoption e g parente and prescott 2000 and institutions e g acemoglu and johnson 2005 have often been offered as explanations for low tfp in poorer countries the global crisis and the resulting uncertainty have reinforced concerns about growth prospects in many low income countries after a decade of almost universally solid growth performance the medium term outlook for many low income countries appears increasingly uncertain at the same time the growth potential in many countries with low tfp remains dim even beyond the full conclusion of this crisis if tfp drives growth its determinants are the key to development prospects in low income countries some country specific direct determinants of tfp geography history or institutions such as the prevalent legal system are fixed or slow moving and the degree to which policy can influence these conditions is limited others such as innovation or the level of financial development can respond to both foreign and domestic forces external shocks globalization or government policy in this view tfp is not primarily the result of the endowment of a country but instead a direct result of purposeful actions by economic agents and as such can be influenced by policy innovation activity leads to technological progress in two distinct ways purposeful research and development can result in the invention of completely new products and processes this kind of innovative activity moves the global technological frontier and still mainly occurs in developed countries however innovation also consists of the adoption and adaptation of existing technology which can close the gap between countries converging toward the global technological frontier and those on the leading edge pushing the world frontier innovation shares a strong connection with the provision of financial services invention and adoption of technology are costly and risky activities which require financing it is therefore natural to study the impact of a country s financial development on tfp via the innovation channel 1in this article we follow that agenda in two separate steps i how do firm specific actions in particular innovation affect firm productivity ii what is the role of a country s level of development both financial and general in facilitating higher productivity using firm level data taken from the enterprise surveys covering over 14 000 firms in 63 countries we first establish a connection between a firm s innovative activities and its productivity we control for country industry and firm specific factors the countries in our data include low middle and high income countries while the firms span all sizes with a focus on small and medium sized enterprises sme innovation is defined broadly as the introduction of new production processes or product lines so that it includes the adaptation of existing technology we find that other things being equal firms that have introduced a new process or product are more productive

from institutions to financial development and growth what are the links this paper presents an integrated overview of the literature linking institutions financial development and economic growth from the large body of research on institutional development the paper first selects those contributions that make it possible to study the role of institutional arrangements in ameliorating worsening the information frictions and transaction costs that characterize the development of financial markets the paper then investigates the theoretical mechanisms by which these specific frictions affect economic growth and presents the stock of empirical evidence quantifying the impact of institutions on growth through financial development

u s stock returns and oil prices the tale from daily data and the 2008 2009 financial crisis abstract using daily data from january 1999 to december 2011 we examine u s stock returns s p 500 dow jones nasdaq and russell 2000 based on a wide range of information including equity vix volatility inflation expectations interest rates gold prices and the usd euro exchange rate the focus is on oil price returns which have been previously found to exert mostly negative effects on u s stock returns identifying the crisis of 2008 2009 as a significant period of economic contraction and subsequent recovery we check the stability of the stock oil relationship by garch and mgarch dcc models prior to the financial crisis stock returns are slightly negatively affected by oil prices and by the usd euro for the subsample of mid 2009 onwards however stock returns are positively affected by oil prices and a weaker usd euro as with inflation expectations we interpret these findings as u s stocks responding positively to expectations of recovery worldwide our proposed explanation is due to the changing correlation between stock markets and oil either by standard garch models or by mgarch dcc models allowing the implied correlation to vary over time

the public pay gap in britain small differences that don t matter the existing literature on inequality between private and public sectors focuses on cross section differences in earnings levels forward looking agents however care about income and job mobility too which we show are substantially different between the two sectors using data from the bhps we estimate a model of income and employment dynamics allowing for unobserved heterogeneity in the propensity to be employed in eitherjob sector we detect a positive average public premium both in income flows and in the present discounted sum of future income flows we also find that income inequality is lower but more persistent in the public sector there is an ongoing debate as to whether public sector workers experience better or worse pay conditions than their private counterparts a recurring message in the recent literature is that although raw differences can be large most are likely to reflect differences in the composition of the workforce both in terms of observed characteristics such as age and education and in terms of unobserved characteristics nevertheless a look at labour markets in the two sectors suggests that individuals do perceive some differences between the sectors katz and krueger 1991 document the fact that blue collar workers are willing to queue to obtain public sector jobs whereas highlyskilled workers are notoriously hard to recruit and retain in the public sector the focus of most of the literature on public pay gaps is on cross section differences in earnings levels 2 yet the public private differences are arguably equally marked in terms of income mobility income volatility and job loss risk than in terms of mean income levels public sector employers are widely perceived to offer more job security 3 there is also plentiful evidence of relative wage compression in the public sector moreover as we shall point out public sector incomes are substantially more persistent over time than private sector incomes the motivating point of this article is that forward looking agents are likely to care about income and job mobility as well as income levels so that a more general assessment of the existence and magnitude of a public premium should be based on

financing development the role of information costs to address how technological progress in nancial intermediation aects the economy a costly state veri cation framework is embedded into the standard growth model the framework has two novel ingredients first rms dier in the risk return combinations that they oer second the e cacy of monitoring depends upon the amount of resources invested in the activity a nancial theory of rm size results undeserving rms are over nanced deserving ones under funded technological advance in intermediation leads to more capital accumulation and a redirection of funds away from unproductive rms toward productive ones quantitative analysis suggests that nance is important for growth

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

oil prices exchange rates and emerging stock markets abstract while two different streams of literature exist investigating 1 the relationship between oil prices and emerging market stock prices and 2 the relationship between oil prices and exchange rates relatively little is known about the dynamic relationship between oil prices exchange rates and emerging market stock prices this paper proposes and estimates a structural vector autoregression model to investigate the dynamic relationship between these variables impulse responses are calculated in two ways standard and the recently developed projection based methods the model supports stylized facts in particular positive shocks to oil prices tend to depress emerging market stock prices and us dollar exchange rates in the short run the model also captures stylized facts regarding movements in oil prices a positive oil production shock lowers oil prices while a positive shock to real economic activity increases oil prices there is also evidence that increases in emerging market stock prices increase oil prices

limited enforcement financial intermediation and economic development a quantitative assessment we present a model of economic development where the importance of financial differences caused by limited enforcement can be measured economies where enforcement is poor direct less capital to the production sector and employ less efficient technologies calibrated simulations reveal that the resulting effect on output is large furthermore the model correctly predicts that the average scale of production should rise with the quality of enforcement finally we find that the importance of limited enforcement rises with the importance of capital in production

time frequency causality and connectedness between international prices of energy food industry agriculture and metals abstract this study analyzes the lead lag relationship between the price indices of energy fuels and each of food industrial inputs agriculture raw materials metals and beverages in the time frequency domain to this end we first use the wavelet coherency and phase differences next we use the diebold and yilmaz 2012 and barunik and krehlik 2017 spillover indices to analyse the connectedness among the set of the price indices under consideration the period of the study is 1990m1 to 2017m5 the wavelet coherency results reveal that there are important and significant relations between the fuel and food prices the fuel and industrial prices and the fuel and metal prices these results also show that there are phase relationships between those paired prices the volatility spillover results indicate that the agricultural sector is the most affected by shocks from the other markets the return series of the industrial input prices at all frequencies appears to be the main source of volatility transmission to the prices of the other commodities over the whole period this finding underlines the relevance of the industrial inputs to policy makers particularly when they design policies to provide incentives related to industrial production

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

de financialization of commodities evidence from stock crude oil and natural gas markets abstract in order to investigate whether the crude oil and natural gas market volatility is influenced by the volatility in the stock market or whether these different variables move all together we introduce the volatility threshold dynamic conditional correlations vt dcc approach to investigate the spillover effect of stock market volatility index vix vstoxx on crude oil and natural gas markets during 1999 2015 and make the correlation dynamics dependent on conditional variance values through a threshold grid search algorithm by detecting one endogenous break point in the raw series we identify two clusters one in 2008 and another in 2014 due to the financial crisis and the structural low oil prices linked to changing fundamentals respectively also the u s henry hub gas seems to be associated with the stock market volatility indexes contrary to the european nbp gas which is linked to the brent besides regarding the volatility behaviors of our series the four energy variables violate their thresholds at similar moments and the stock market vix and vstoxx exhibit logically similarities co movements are detectable as well between the vix and crude oil series when investigating the volatility extracted from the garch model in addition the block dcc estimates provide ample evidence of similarities in the correlation dynamics between the crude oil and stock volatility series it should be noted that the modeling framework proposed in this paper represents a useful tool for the study of cross market contagion

volatility spillover and multivariate volatility impulse response analysis of gfc news events abstractthis article applies two measures to assess spillovers across markets the diebold and yilmaz s 2012 spillover index and the hafner and herwartz s 2006 analysis of multivariate garch models using volatility impulse response analysis we use two sets of data daily realized volatility rv estimates taken from the oxford man rv library for the s p500 and the ftse plus 10 years of daily returns series for the new york stock exchange index and the ftse 100 index both data sets capture both the global financial crisis gfc and the subsequent european sovereign debt crisis esdc the spillover index captures the transmission of volatility to and from markets plus net spillovers the volatility impulse responses virf have to be calibrated to conditional volatility estimated at a particular point in time we explore the impact of three different shocks the onset of the gfc the height of the gfc and the impact of the esdc our modelling includes leverage and asymmetric effects applying a mu

oil price shocks and stock markets in the u s and 13 european countries abstract oil price shocks have a statistically significant impact on real stock returns contemporaneously and or within the following month in the u s and 13 european countries over 1986 1 2005 12 norway as an oil exporter shows a statistically significantly positive response of real stock returns to an oil price increase the median result from variance decomposition analysis is that oil price shocks account for a statistically significant 6 of the volatility in real stock returns for many european countries but not for the u s increased volatility of oil prices significantly depresses real stock returns the contribution of oil price shocks to variability in real stock returns in the u s and most other countries is greater than that of interest rate an increase in real oil price is associated with a significant increase in the short term interest rate in the u s and eight out of 13 european countries within one or two months counter to findings for the u s and for norway there is little evidence of asymmetric effects on real stock returns of positive and negative oil price shocks for oil importing european countries

history lessons institutions factor endowments and paths of development in the new world the explanations offered for the contrasting records of long run growth and development among the societies of north and south america most often focus on institutions the traditional explanations for the sources of these differences in institutions typically highlight the significance of national heritage or religion we in contrast argue that a hemispheric perspective across the wide range of colonies established in the new world by the europeans suggests that although there were many influences factor endowments or initial conditions had profound and enduring effects on the long run paths of institutional and economic development followed by the respective economies

financial development growth and the distribution of income a paradigm is presented in which both the extent of financial intermediation and the rate of economic growth are endogenously determined financial intermediation promotes growth because it allows a higher rate of return to be earned on capital and growth in turn provides the means to implement costly financial structures thus financial intermediation and economic growth are inextricably linked in accord with the goldsmith mckinnon shaw view on economic development the model also generates a development cycle reminiscent of the kuznet hypothesis in particular in the transition from a primitive slow growing economy to a developed fast growing one a nation passes through a stage in which the distribution of wealth across the rich and poor widens

interdependence between cash crop and staple food international prices across periods of varying financial market stress abstractthis paper investigates the price dynamics between a selection of international staple food and cash crop futures prices this price interaction is particularly relevant for developing coun

commodities price cycles and their interdependence with equity markets abstract this study examines the time scale connectedness between returns on nine african stock markets and commodities markets across energy agriculture metals and beverage first we examine multi scale short medium and long run wavelet structural relationships between african stocks and commodities using the bivariate wavelet coherence we establish that commodities and african stock returns co move across multiple scales and co integrate in the long run albeit sparse second we analyze the portfolio performance of the african stock markets with other commodities using wavelet based diversified and undiversified portfolios in a translation invariant manner to calculate the scale specific sharpe ratios over different sub periods rather than giving a one shot look for the entire sample this enables us to examine how risk adjusted returns vary across different periods the results confirm that having a combined portfolio of commodities and equities improves performance over different investment horizons specifically we observe that in non crisis periods particularly from 2001 2006 the equally weighted and optimally weighted portfolios show the greatest performances however as we enter into the crisis zones such as the asian crisis of 1997 2000 and the global financial and eurozone debt crisis the risk aversion of investors become prominent as the risk minimizing portfolios record the highest performances

dynamic spillovers between oil and stock markets in the gulf cooperation council countries this article exploits a new spillover directional measure proposed by diebold and yilmaz 2009 2012 to investigate the dynamic spillover of return and volatility between oil and equities in the gulf cooperation council countries during the period 2004 to 2012 our results indicate that return and volatility transmissions are bi directional albeit asymmetric in particular the oil market gives other markets more than it receives in terms of both returns and volatilities these trends were more pronounced in the aftermath of the global financial crisis in 2008 as the net contribution of oil has intensified after a burst during the crisis the empirical evidence from the sample is consistent with a system in which oil is playing the dominant role in the information transmission mechanism between oil and equities in the gcc countries

pareto optima and competitive equilibria with adverse selection and moral hazard this paper explores the extent to which standard general equilibrium analysis of pareto optima and of competitive equilibria can be applied to environments with moral hazard and adverse selection problems allowing for lotteries contracts with random components we first establish that an adverse selection insurance economy a moral hazard insurance economy a signaling economy and a private information labor market economy are all special cases of a simple general structure we then show that techniques for characterizing pareto optimal contracts as solutions to concave programming problems are useful and nice and appear to be broadly applicable allowing for lotteries we show how to characterize the optimal allocations for the adverse selection insurance and labor market economies we then show that standard existence and optimality theorems for competitive equilibria apply in the linear space containing lotteries if agents with characteristics which are distinct and privately observed at the time of initial trading enter the economy wide resource constraints in a homogeneous way other kinds of diversity are not critical for economies with moral hazard which satisfy the homogeneity condition competitive contract markets single out a subset of the optima and thus can be consistent with apparent unemployment and with a random allocation of labor supplied though all households are averse to risk the adverse selection insurance and signaling economies however do not satisfy the homogeneity condition and are difficult to decentralize efficiently with a price system

the empirical relationship between energy futures prices and exchange rates abstract this paper investigates the interaction between energy futures prices and exchange rates results are presented to show that futures prices for crude oil heating oil and unleaded gasoline are co integrated with a trade weighted index of exchange rates this is important because it means that there exists a long run equilibrium relationship between these four variables granger causality results for both the long and short run are presented evidence is also presented that suggests exchange rates transmit exogenous shocks to energy futures prices

barriers to entry and development we ask whether barriers to entry are a quantitatively important reason for the income gap between developing countries and the united states we develop a tractable general equilibrium model that captures the effects of barriers to entry and the other main distortions typically considered in the development literature we carry our model to the data and ask it to match the main development facts from the penn world table we find that this requires large barriers to entry in developing countries which account for about half of the income gap with the united states

the labor contract and true economic pension liabilities most pension covered workers in the united states are covered solely or primarily by defined benefit plans in these plans workers are typically promised a pension that is proportional to their years of service in the firm and their final wage depending upon how workers pay for it the existence of a pension in the labor contract may play either an important role or no role at all in the worker firm relationship this paper addresses the issue how workers pay for the cumulating pension benefit over their tenure cycle in the firm and derives several economic implications for the worker firm contract while the theory itself has ambiguous implications the data confirm the longstanding presumption that pensions offer strong incentives for the worker to complete the normal tenure cycle in the firm not to quit early but if this intuitive notion is accepted it is shown that a perhaps less intuitive notion is also true firms make workers longterm bondholders in the firm the same flow of worker pension savings that tie workers to the firm are not accounted for in the pension trust fund pension plans are significantly underfunded in a true economic sense this is a peculiar characteristic of the labor contract which raises several unanswered questions the paper also shows that the nature of the pension contract can play an important role in determining the wage service profile and the capitalized value of the firm recent contributions to the literature pose an interesting and unconventional view of pensions one which leads to the conclusion that pensions play a relatively minor role in the worker firm contract the argument has been implicitly made by burt barnow and ronald ehrenberg 1979 and william sharpe 1976 but has recently been stated more directly by jeremy bulow 1982 2 in essence their views rest on a legal interpretation of pension liabilities namely since the firm can legally terminate its pension plan anytime the firm s pension liabilities cannot exceed the present value of the nominal pension promises it would owe workers if the firm terminated the plan immediately if workers believe the firm will exercise its legal right it is intuitively apparent and easy to show that workers will deposit only that amount of compensation into the pension plan that they expect to receive upon immediate termination using this interpretation of pension plan liabilities pensions have no influence on whether the worker leaves or remains in the firm moreover it will be shown that if the pension contract is written in nominal terms reflecting the legal view workers are not bondholders in the firm pension plans are excessively overfunded an alternative view is that the pension plan is an implicit contract between the worker and the firm see for example jack treynor 1977 an implicit contract theory implies that workers anticipating careers with a firm will consider the package of wage and pension benefits they expect to collect over their life cycle it is shown that these expectations lead quite directly to several implications that the pension contract is written in real terms that firms intend to meet their pension promises and that the firm will re u s department of labor s 4521 washington d c 20210 the views expressed in this paper are my own and do not necessarily represent the views of the department of labor the paper has substantially benefited from the comments of pauline ippolito and discussions with jeremy bulow i am also indebted to robert clark gary fields alan gustman olivia mitchell james pesando john turner michael ward and participants at the labor relations workshop at cornell university and the law and economics workshop at the university of chicago for comments see my 1985a book 2 the argument is also implicit in other related papers see for example martin feldstein and randall morck 1982

exogenous oil supply shocks how big are they and how much do they matter for the u s economy abstract the paper proposes a new measure of exogenous oil supply shocks the timing the magnitude and the sign of this measure may differ greatly from current state of the art estimates it is shown that only a small fraction of the observed oil price increases during oil crisis periods can be attributed to exogenous oil production disruptions exogenous oil supply shocks cause a sharp drop of u s real gdp growth after five quarters rather than an immediate and sustained reduction in economic growth and a spike in cpi inflation after three quarters overall exogenous oil supply shocks made remarkably little difference for the evolution of the u s economy since the 1970s although they did matter for some historical episodes

oil price shocks stock market economic activity and employment in greece abstract using a multivariate vector autoregression var approach this paper attempts to shed light into the dynamic relationship among oil prices real stock prices interest rates real economic activity and employment for greece the empirical evidence suggests that oil price changes affect real economic activity and employment oil prices are important in explaining stock price movements stock returns do not lead to changes in real activity and employment

a test of the household income process using consumption and wealth data the evolution of household income can be explained almost equally well by rival models however rival models have very different implications for other household behaviours such as consumption i therefore test between two prominent models in the uk using panel data on consumption and wealth as well as income over 1991 2006 to operate the test i show that long lived income shocks transmit far less than one for one through to consumption and particularly so for younger households i then compare these estimates of transmission with estimates of households ability to smooth shocks captured by the data on wealth conditional on the suitability of the consumption model my estimates provide evidence against the restricted income process rip and in favour of an alternative heterogeneous income process hip this finding also explains why cross sectional consumption inequality grew slowly over the period even though the variance of long lived shocks was high finally i conclude that it is important to consider mean reversion of shocks when constructing life cycle consumption models

volatility spillover between oil and agricultural commodity markets abstract this study examines volatility transmission between oil and selected agricultural commodity prices wheat corn soybeans and sugar we apply the newly developed causality in variance test and impulse response functions to daily data from 01 january 1986 to 21 march 2011 in order to identify the impact of the food price crisis the data are divided into two sub periods the pre crisis period 01 january 1986 to 31 december 2005 and the post crisis period 01 january 2006 21 march 2011 the variance causality test shows that while there is no risk transmission between oil and agricultural commodity markets in the pre crisis period oil market volatility spills on the agricultural markets with the exception of sugar in the post crisis period the impulse response analysis also indicates that a shock to oil price volatility is transmitted to agricultural markets only in the post crisis period this paper thereby shows that the dynamics of volatility transmission changes significantly following the food price crisis after the crisis risk transmission emerges as another dimension of the dynamic interrelationships between energy and agricultural markets

what is a public sector pension worth we measure accruals in defined benefit db pension plans for public and private sector workers in britain using typical differences in scheme rules and sector specific lifetime age wage profiles by sex and educational group we show not just that coverage by db pension plans is greater in the public sector but that median pension accruals as a percentage of salary are more than 6 higher among db covered public sector workers than covered private sector workers this is largely driven by earlier normal pension retirement ages but also by differences in earnings profiles across the sectors

vested interests in a positive theory of stagnation and growth we study a positive theory of stagnation and growth aimed at understanding the large variations in growth outcomes across actual economies the theory points to the fundamental role played by vested interests in determining policies which are key to the growth process some agents seek to prevent the adoption of new technologies we develop a model of technology adoption and show how technological innovation may sow the seeds of its own destruction in particular we find that the equilibrium is characterized by a long cycle of stagnation and growth over this cycle incumbents are phased out of the economy will new innovation occur in formalizing our theory we make a methodological contribution by characterizing dynamic voting equilibria when voters must forecast the effects of different current policies on future prices and policy outcomes

on finance as a theory of tfp cross industry productivity differences and economic rents we develop a theory of capital market imperfections to study how the ability to enforce contracts affects resource allocation across entrepreneurs of different productivities and across industries with different needs for external financing the theory implies that countries with a poor ability to enforce contracts are characterized by the use of inefficient technologies low aggregate tfp large differences in labor productivity across industries and large employment shares in industries with low productivity these implications are supported by the empirical evidence the theory also suggests that entrepreneurs have a vested interest in maintaining a status quo with low enforcement

time frequency contained co movement of crude oil and world food prices a wavelet based analysis abstract this paper evaluates the association between crude oil prices and world food price indices first within general space and time and then within the combined time frequency sphere monthly price data spanning from january 1990 to february 2016 were used for the analysis the johansen cointegration test conducted within the time domain confirmed the statistically significant cointegrated relationship between crude oil prices and the price indices of food and its sub categories such as dairy cereals vegetable oil and sugar however frequency information was not accounted for to incorporate both the time and frequency features of the data we used a wavelet method that has shown that the world food prices along with the prices of cereals vegetable oils and sugar co move with and are led by crude oil prices results that remain relevant from the short run policy perspective the outcome of toda yamamoto causality confirmed the spillover of crude oil price changes to the world food price index also in the long run the paper ends with the policy implications of these results

the payment of public sector workers in the uk reconciliation with north american findings abstract in common with recent north american evidence the highest wage premiums for uk public sector workers are found in the lower tail of the wage distribution evidence of public sector underpayment at the opposite extreme of the earnings spectrum is also apparent

the returns to computer use revisited have pencils changed the wage structure too are the large measured wage differentials for on the job computer use a true return to computer skills or do they just reflect that higher wage workers use computers on their jobs we examine this issue with three large cross sectional surveys from germany first we confirm that the estimated wage differential associated with computer use in germany is very similar to the u s differential second we also measure large differentials for on the job use of calculators telephones pens or pencils or for those who work while sitting down we argue that these findings cast some doubt on the literal interpretation of the computer use wage differential as reflecting true returns to computer use or skill

tactical allocation in commodity futures markets combining momentum and term structure signals this paper examines the combined role of momentum and term structure signals for the design of profitable trading strategies in commodity futures markets with significant annualized alphas of 10 14 and 12 66 respectively the momentum and term structure strategies appear profitable when implemented individually with an abnormal return of 21 02 our double sort strategy that exploits both momentum and term structure signals clearly outperforms the single sort strategies this double sort strategy can additionally be utilized as a portfolio diversification tool the abnormal performance of the combined portfolios cannot be explained by a lack of liquidity data mining or transaction costs

investor protection optimal incentives and economic growth does investor protection foster economic growth to assess the widely held affirmative view we introduce investor protection into a standard overlapping generations model of capital accumulation better investor protection implies better risk sharing because of entrepreneurs risk aversion this results in a larger demand for capital this is the demand effect a second effect the supply effect follows from general equilibrium restrictions better protection i e higher demand increases the interest rate and lowers the income of entrepreneurs decreasing current savings and next period s supply of capital the supply effect is stronger the tighter are the restrictions on capital flows our model thus predicts that the positive effect of investor protection on growth is stronger for countries with lower restrictions cross country data provide support for this prediction as does the detailed examination of the growth experiences of south korea and india

what are occupational pension plan entitlements worth in britain the acquisition of rights by workers in private pension plans underpins retirement behaviour recruitment policy and wage structure but there is controversy as to how these individual pension rights should be valued the paper combines four data sets to calculate pension entitlements for a sample of 3000 british workers in 1987 expected scheme tenure is a key variable in valuation younger workers and women face greater initial uncertainty as to their pension outcomes which is resolved as job tenure lengthens given the distribution of tenure durations many employees would obtain higher returns in defined contribution schemes than in a typical final salary defined benefit plan

do structural oil market shocks affect stock prices abstract this paper investigates how explicit structural shocks that characterize the endogenous character of oil price changes affect stock market returns in a sample of eight countries australia canada france germany italy japan the united kingdom and the united states for each country the analysis proceeds in two steps first modifying the procedure of kilian kilian l forthcoming not all oil price shocks are alike disentangling demand and supply shocks in the crude oil market american economic review we employ a vector error correction or vector autoregressive model to decompose oil price changes into three components oil supply shocks global aggregate demand shocks and global oil demand shocks the last component relates to specific idiosyncratic features of the oil market such as changes in the precautionary demand concerning the uncertainty about the availability of future oil supplies second recovering the oil supply shocks global aggregate demand shocks and global oil demand shocks from the first analysis we then employ a vector autoregressive model to determine the effects of these structural shocks on the stock market returns in our sample of eight countries we find that international stock market returns do not respond in a large way to oil market shocks that is the significant effects that exist prove small in magnitude

oil price movements and stock markets revisited a case of sector stock price indexes in the g 7 countries abstract applying sector stock prices and oil prices in 1991 01 2009 05 from the g7 countries we find oil price shocks do not significantly impact the composite index in each country however stock price changes in germany the uk and the us were found to lead oil price changes as for the interaction between oil price changes and sector stock price changes we find short run negative causal relationships 4 of 7 sector index returns were impacted by oil price changes in germany 2 in the us and 1 in france in particular stock returns of information technology and consumer staples sectors were found to be impacted most by oil price shocks followed by financial utilities and transportation sectors in terms of causality from sector stock price changes to oil price changes we find stock price changes lead oil price changes in 8 of 9 sectors in germany most in the g7 countries followed by the uk italy france canada and the us no such a causal relationship however is found for japan with respect to specific sectors stock price changes in consumer staples and materials sectors were impacted most significantly by oil price changes followed by transportation financial energy health care industrials utilities information technology and telecommunication sectors with the exception of consumer discretionary sector in addition short term stock price changes are found to lead positively oil price changes

substitution between wage and nonwage benefits you gotta be kidding ollie you re just robbing yourself schuylkill mutual offers a terrific deal on keogh and we could plug you in in fact we advise plugging you in on the corporate end so not a nickel comes out of your personal pocket it comes out of the corporate pocket and there s that much less for uncle to tax these poor saps carrying their own premiums with no company input are living in the dark ages there s nothing shady about rigging it this way we re just using the laws the government has put there they want people to take advantage it all works to up the gross national product you know what i mean by keogh don t you you re looking kind of blank john updike p 296