what has driven oil prices since 2000 a structural change perspective abstract this paper characterizes weekly international oil price fundamentals since 2000 by analyzing the transformation of the market mechanism based on structural change perspective using endogenously determined break tests that allow for changes in both level and trend we divide the price fluctuations in the international oil market after 2000 into three stages relatively calm market period january 07 2000 to march 12 2004 the bubble accumulation period march 19 2004 to june 06 2008 and the global economic crisis period june 13 2008 to september 11 2009 the results show the existence of structural breaks refutes the utility of investigation of the full sample period as a whole and in different structural periods the main drivers of oil price changes and their way of influence and degree are significantly distinct then we demonstrate the evolving process of market mechanism since 2000 through establishing comparative models we also quantitatively measure the roles of speculation and episodic events in oil price fluctuations

economic determinants of oil futures volatility a term structure perspective to assess the economic determinants of oil futures volatility we firstly develop and estimate a multi factor oil futures pricing model with stochastic volatility that is able to disentangle long term medium term and short term variations in commodity markets volatility the volatility estimates reveal that in line with theory the volatility factors are unspanned persistent and carry negative market price of risk while crude oil markets are becoming more integrated with financial markets after 2004 short term volatility is driven by industrial production term and credit spreads the s p 500 and the us dollar index along with the traditional drivers including hedging pressure and vix medium term volatility is consistently related to open interest and credit spreads while after 2004 oil sector variables such as inventory and consumption also impact this part of the term structure interest rates mostly matter for long term futures price volatility

evaluating natural resource investments notwithstanding impressive advances in the theory of finance over the past 2 decades practical procedures for capital budgeting have evolved only slowly the standard technique which has remained unchanged in essentials since it was originally proposed see dean 1951 bierman and smidt 1960 derives from a simple adaptation of the fisher 1907 model of valuation under certainty under this technique expected cash flows from an investment project are discounted at a rate deemed appropriate to their risk and the resulting present value is compared with the cost of the project this standard textbook technique reflects modern theoretical developments only insofar as estimates of the discount rate may be obtained from crude application of single period asset pricing theory but see brennan 1973 bogue and roll 1974 turnbull 1977 constantinides 1978 the inadequacy of this approach to capital budgeting is widely acknowledged although not widely discussed its obvious deficiency is its the evaluation of mining and other natural resource projects is made particularly difficult by the high degree of uncertainty attaching to output prices it is shown that the techniques of continuous time arbitrage and stochastic control theory may be used not only to value such projects but also to determine the optimal policies for developing managing and abandoning them the approach may be adapted to a wide variety of contexts outside the natural resource sector where uncertainty about future project revenues is a paramount concern

what drives the commodity price beta of oil industry stocks we test theoretical drivers of the oil price beta of oil industry stocks the strongest statistical and economic support comes for market conditions type variables as the prime drivers namely oil price bond rate volatility of oil returns and cost of carry though statistically significant exogenous firm characteristics and oil firms financing decisions have less compelling economic significance there is weaker support for the prediction that financial risk management reduces the exposure of oil stocks to crude oil price variation finally extended modelling shows that mean reversion in oil prices also helps explain cross sectional variation in the oil beta

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

oil prices the role of refinery utilization futures markets and non linearities we test the hypothesis that real oil prices are determined in part by refinery capacity non linearities in supply conditions and or expectations and that observed changes in these variables can account for the rise in prices between 2004 and 2006 results indicate that the refining sector plays an important role in the recent price increase but not in the way described by many analysts the relationship is negative such that higher refinery utilization rates reduce crude oil prices this effect is associated with shifts in the production of heavy and light grades of crude oil and price spreads between them non linear relationships between opec capacity and oil prices as well as conditions on the futures markets also account for changes in real oil prices together these factors allow the model to generate a one step ahead out of sample forecast that performs as well as forecasts implied by far month contracts on the new york mercantile exchange and is able to account for much of the 27 rise in crude oil prices between 2004 and 2006

energy conservation policies in the oecd did they make a difference abstract in 1985 homes services automobiles truck freight air passenger traffic other transport and manufacturing in the oecd used 47 million bbl day of oil equivalent mb doe or 105 000 pj 1 between 1972 and 1985 however energy use per unit of activity in each of these sectors in the oecd fell significantly if these energy intensities by sector had been frozen at their 1972 values 1985 end use would have been close to 64 mb doe or 143 000 pj at the rates of activity that prevailed in each sector in 1985 2 the difference yields a saving of 17 mb doe the corresponding oil savings in this period amount to close to 12 mb doe including substitution by other fuels in this paper it is suggested that most of these savings will not reverse in the near time with lower oil prices only a small part was caused by energy conservation policies

index investment and the 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 increasingly correlated with oil prices this trend has been significantly more pronounced for commodities in two popular commodity indices this finding reflects the financialization of the commodity markets and helps explain the large increase in the price volatility of non energy commodities around 2008

the role of trader positions in spot and futures prices for wti abstract we extend the analysis of causal relations between trader positions and oil prices and the process of price discovery by estimating a cointegrating vector autoregression cvar model that expands the cash and carry relation between spot and futures prices to quantify long and short run relations among oil prices trader positions interest rates and oil inventories results indicate that oil inventories and trader positions are needed to generate cointegration between spot and futures prices the presence of trader positions and oil inventories suggest that both play a role in price discovery furthermore the cointegrating relation for price loads into the equation for both oil prices and trader positions this suggests a bi directional simultaneous adjustment process between oil prices and trader positions this expands the unidirectional causal relation from oil prices to trader positions that is generated by previous studies additional results suggest that price discovery occurs in the market for heavily traded near month futures contracts but discovery for thin far month futures markets occurs in the spot market together these results suggest mechanisms by which speculation could affect oil prices but the results presented here are moot regarding their effects

more efficient household electricity use since 1973 the efficiency of most energy uses in homes has improved throughout the oecd 1 this means that to provide a given amount of energy service for example heating cooling locomotion or mechanical force less energy is required today than was needed in the past these improvements have been gained through the introduction of new appliances and for space heating and cooling new homes with more efficient building shells and the retrofitting of the existing building stock in this report we analyse some of the past changes in the efficiency of household appliance electricity use and discuss prospects for and barriers to further increases in the future

energy use in the service sector an international perspective abstract this study presents the first international comparison of energy use and structure in the service sector of major oecd countries this sector includes offices hospitals schools stores and other buildings commonly referred to as commercial buildings the authors separate service sector energy use from other sectors examine differences in fuel mix energy intensity electricity use and conservation experience as well as fundamental differences in the extent and make up of the building stock and the climate most countries are seen to have reduced energy intensity since 1973 all have reduced the share of heating oil and increased the use of electricity both for space conditioning as well as for other building services the authors find that energy intensity in us commercial and institutional buildings is among the highest in the oecd while electricity intensities in norway canada the usa and sweden are well above those in other countries

does the s p500 index lead the crude oil dynamics a complexity based approach abstract taking the complex property of nonlinear feedback connectivity into consideration the goal of this paper is to apprehend the interdependences between the financial and energy sectors our contribution is both theoretical and methodological we conduct a multivariate analysis employing nonlinear tools namely the partial transfer entropy and the asymmetric mackey glass causality test in particular we build a system comprising the petroleum complex crude oil gasoline and heating oil the s p500 index and the 1 month futures spot spread for crude oil by adopting a rolling window approach we observe a persistent lead lag relationship between the s p500 index and the market participants expectations for crude oil from 2004 to 2009 depending on the bubble period in the stock market it appears that the resulting coupling becomes subject to the deterioration of global economic activity induced by large common shocks

relationships between oil price shocks and stock market an empirical analysis from china this paper investigates the interactive relationships between oil price shocks and chinese stock market using multivariate vector auto regression oil price shocks do not show statistically significant impact on the real stock returns of most chinese stock market indices except for manufacturing index and some oil companies some important oil price shocks depress oil company stock prices increase in oil volatility may increase the speculations in mining index and petrochemicals index which raise their stock returns both the world oil price shocks and china oil price shocks can explain much more than interest rates for manufacturing index

improved energy efficiency in the industrialized countries past achievements co2 emission prospects abstract this paper explores the contribution which energy efficiency might make to future reductions in co 2 emissions trends in key energy use sectors and recent changes that may signal a slowdown in the rate of improvement of energy efficiency are examined the oecd countries reduced their energy use through greater efficiency by nearly 32 ej or 16 million bbl day oil equivalent between 1972 and 1985 but the pace of these improvements in energy use has begun to slow prospects for increased efficiency in each sector and the barriers to achieving those increases are discussed

price of oil and world inflation and recession new evidence shows that the commonly held assumption that the 1973 74 oil price increase directly affected us and world inflation and subsequent recession is consistent with the empirical data an extended lucas varro real income equation applied to the us united kingdom canada france germany italy japan and the netherlands gives mixed results partly because of price control and decontrol programs simulation experiments on the price control variable using us data finds strong effects further studies can be made when consistent international data is available for the 1979 80 period 18 references 4 figures 3 tables dck

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

a neoclassical model of unemployment and the business cycle this paper investigates a general equilibrium model of unemployment and the business cycle in which specialization of labor plays a key role a rational expectations equilibrium with fully flexible wages and prices can exhibit unemployment in which the marginal product of employed workers exceeds the reservation wage of those who are without jobs workers are unemployed either because they are in the process of relocating for a better job or because they are waiting for conditions in the depressed sector to improve moreover seemingly small disruptions in the supplies of primary commodities such as energy could be the source of fluctuations in aggregate employment and can exert surprisingly large effects on real output

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

tight oil real wti prices and u s stock returns abstract following the adoption of new techniques of shale and fracking by u s oil companies a structural vector autoregression model svar complements studies on why brent and wti started to diverge around early 2011 using monthly data from 2000 to 2018 we decompose oil supply into world oil excluding u s u s conventional non tight oil and u s tight oil we examine the variance decomposition of stock returns for the aggregate market s p 500 the s p energy sector and chevron and exxon mobil oil companies and we further identify differences between two subsamples from 2000 to 2010 and 2011 to 2018 respectively we find that supply considerations especially due to tight oil become more important in the subsample after 2011 not only for individual oil companies but also for the aggregate market and energy sector supply shocks due to tight oil explain in our benchmark model between 29 s p 500 and 31 s p energy of the variance in stock returns after 24 months and between 28 and 29 for oil companies none of these are statistically significant in the pre 2011 subsample among impulse responses tight oil production responds positively to disruptions in world oil and u s stock returns respond positively to oil price shocks and respond negatively to tight oil shocks which is a further finding while being consistent with the literature copula modeling uncovers stronger tail dependences in the second subsample for the interactions during downturns and upturns among global demand crude oil prices and stock markets

crude oil and stock markets stability instability and bubbles abstract we analyze the long run relationship between the world price of crude oil and international stock markets over 1971 1 2008 3 using a cointegrated vector error correction model with additional regressors allowing for endogenously identified breaks in the cointegrating and error correction matrices we find evidence for breaks after 1980 5 1988 1 and 1999 9 there is a clear long run relationship between these series for six oecd countries for 1971 1 1980 5 and 1988 2 1999 9 suggesting that stock market indices respond negatively to increases in the oil price in the long run during 1980 6 1988 1 we find relationships that are not statistically significantly different from either zero or from the relationships of the previous period the expected negative long run relationship appears to disintegrate after 1999 9 this finding supports a conjecture of change in the relationship between real oil price and real stock prices in the last decade compared to earlier years which may suggest the presence of several stock market bubbles and or oil price bubbles since the turn of the century

rational destabilizing speculation positive feedback trading and the oil bubble of 2008 abstract this article examines how the interaction of different participants in the crude oil futures markets affects the crude oil price efficiency normally the commercial market participants such as oil producers and oil consumers act as arbitrageurs and ensure that the price of crude oil remains within the fundamental value range however institutional investors that invest in crude oil to diversify their portfolios and or hedge inflation can destabilize the interaction among commercial participants and liquidity providing speculators we argue that institutional investors can impose limits to arbitrage particularly during the financial crisis when the investment demand for commodities is particularly strong in support we show that commercials hedgers had significantly reduced their short positions leading to the 2008 oil bubble they were potentially aggressively offsetting their short hedges as a result by essentially engaging in a positive feedback trading commercial hedgers at least contributed to the 2008 oil bubble these findings have been mainly overlooked by the existing research

dynamic conditional correlations in political science time varying relationships and volatility are two methodological challenges that are particular to the field of time series in the case of the former more comprehensive understanding can emerge when we ask under what circumstances relationships may change the impact of context such as the political environment the state of the economy the international situation etc is often missing in dynamic analyses that estimate time invariant parameters in addition time varying volatility presents a number of challenges including threats to inference if left unchecked among time varying parameter models the dynamic conditional correlation dcc model is a creative and useful approach that deals effectively with over time variation in both the mean and variance of time series the dcc model allows us to study the evolution of relationships over time in a multivariate setting by relaxing model assumptions and offers researchers a chance to reinvigorate understandings that are tested using time series data we demonstrate the method s potential in the first example by showing how the importance of subjective evaluations of the economy are not constant but vary considerably over time as predictors of presidential approval a second example using international dyadic time series data shows that the story of movement and comovement is incomplete without an understanding of the dynamics of their variance as well as their means

contingent loan repayment in the philippines abstract using data from the philippines this article seeks to understand how households in the study area apparently manage to avoid falling into a debt trap in spite of frequent borrowing findings suggest that this is achieved via three institutional features first most informal debt carries no interest second for all debts repayment is postponed in case of a borrower s difficulty this is the only insurance feature of debt repayment third while debt principal is seldom forgiven or reduced interest bearing debt does not carry additional interest if debt repayment is delayed this prevents interest charges from accumulating and debt from snowballing

crude oil commodity or financial asset abstract we examine the relation among daily returns to crude oil prices equity prices and commodity markets by modifying previous efforts in two important ways expanding the model to include the equity price for an oil producing firm conocophillips which ameliorates omitted variable bias and estimating the expanded model using the kalman filter which reduces uncertainty associated with ols estimates from rolling windows consistent with the notion of a commodity price beta for oil industry stocks there is a positive correlation between returns to the spot price of wti and conocophillips this correlation indicates not all price changes in crude oil are expected to persist indeed some of the price reductions associated with the asian financial crisis and the price increase associated with the 2008 price spike are not included in our estimate for long run prices in 2008 q4 the correlations between daily returns to crude oil and equities flip from negative to positive we hypothesize that this flip is triggered by a large reduction in interest rates in the fourth quarter of 2008 which is associated with a reduction in convenience yields and a change from backwardation to contango in futures markets these changes increase the returns to holding crude oil as a financial asset relative to holding oil as a commodity

oil price dynamics and speculation a multivariate financial approach abstract this paper assesses empirically whether speculation affects oil price dynamics the growing presence of financial operators in the oil markets has led to the diffusion of trading techniques based on extrapolative expectations strategies of this kind foster feedback trading that may cause considerable departures of prices from their fundamental values we investigate this hypothesis using a modified capm following shiller 1984 and sentana and wadhwani 1992 first a univariate garch 1 1 m is estimated assuming the risk premium to be a function of the conditional oil price volatility the single factor model however is outperformed by the multifactor icapm merton 1973 which takes into account a larger investment opportunity set analysis is then carried out using a trivariate ccc garch m model with complex nonlinear conditional mean equations where oil price dynamics are associated with both stock market and exchange rate behavior we find strong evidence that oil price shifts are negatively related to stock price and exchange rate changes and that a complex web of time varying first and second order conditional moment interactions affects both the capm and feedback trading components of the model despite the difficulties we identify a significant role played by speculation in the oil market which is consistent with the observed large daily upward and downward shifts in prices a clear evidence that it is not a fundamental driven market thus from a policy point of view given the impact of volatile oil prices on global inflation and growth actions that monitor speculative activities on commodity markets more effectively are to be welcomed

the 2014 oil bust causes and consequences abstract this article suggests that the 2014 oil price collapse was possibly triggered by the falling euro versus the us dollar specifically the usd eur exchange rate likely adjusted to the sudden economic growth outlook divergence between the us and the eu as evident by the relative short term interest rate spread measures and triggered a strong dollar trade which is negative for the crude oil prices thus in our view the 2014 oil price bust is another episode of oil price inefficiency similar to the 2008 oil bubble the key argument presented in this article is that as long as there are temporary economic growth divergences between the us and the eu the resulting exchange rate volatility is likely to create the pricing inefficiencies in crude oil which in fact are mean reverting as the economic growth divergences eventually dissipate

oil and the macroeconomy when prices go up and down an extension of hamilton s results in an important paper hamilton 1983 demonstrated a strong correlation between oil price changes and gross national product growth in u s data however his study pertained to a period in which all the large oil price movements were upward and thus it left unanswered the question whether the correlation persists in periods of price decline moreover the price variable he used was somewhat distorted by price controls in the 1970s this note investigates whether hamilton s results continue to hold when the sample is extended to include the recent oil market collapse and the oil price variable is corrected for the effects of price controls particular attention is given to the possibility of asymmetric responses to oil price increases and decreases as suggested in the structural employment literature loungani 1986 davis 1987 hamilton 1988 like hamilton i based my investigation on the gnp equation in sims s 1 980b six variable quarterly vector autoregressive model