Future Stock Performance of Oil and Gas Firms Conditional on the Imputed Value of Reserves

Review of Quantitative Finance and Accounting - Harris and Ohlson (1990) provide evidence suggesting market inefficiencies in the pricing of oil and gas firms in the 1979–1984 period. This...     

Trading with Asymmetric Volatility Spillovers

Abstract:  We study the profitability of trading strategies based on volatility spillovers between large and small firms. By using the Volatility Impulse-Response Function of Lin (1997) and its extensions, we detect that any volatility shock coming from small companies is important to large companies, but the reverse is only true for negative shocks coming from large firms. To exploit these asymmetric patterns in volatility, different trading rules are designed based on the inverse relationship existing between expected return and volatility. We find that most strategies generate excess after-transaction cost profits, especially after very bad news and very good news coming from large or small firm markets. These results are of special interest because of their implications for risk and portfolio management.     

Oil prices and accounting profits of oil and gas companies

This paper investigates the relationship between commodity prices of crude oil, capital structure, firm size and accounting measures of firm performance using a sample of oil and gas firms from 1990 to 2008. We employ estimates based on panel least squares, a fixed effects model and a random effects model. We also use generalized method of moments (GMM) estimators by Arellano and Bond (1991) and Blundell and Bond (1998, 2000). Our findings show that crude oil prices positively and significantly impact the performance of oil and gas firms in North America using accounting measures of performance. The recent financial crisis of 2007 and 2008 negatively influenced oil prices and the financial performance of oil and gas firms. On the other hand, the earlier global crises (Asian financial crisis and 9/11) did not have a significant impact on the return on equity of oil and gas companies. Our primary contribution to the literature is a comprehensive and econometric analysis of the relation between commodity prices and accounting measures of performance oil and gas companies.     

A multivariate nonparametric test for return and volatility timing

This paper develops a novel approach to simultaneously test for market timing in stock index returns and volatility. The tests are based on the estimation of a system of regression equations with indicator variables and provide detailed information about the statistical significance of alternative market timing components.     

Relative Value Relevance of the Successful Efforts and Full Cost Accounting Methods in the Oil and Gas Industry

This paper examines the value relevance of two alternative accounting methods for exploration and development (E&D) expenditures for oil and gas firms. I find that full cost (FC) accounting data is more value-relevant than successful efforts (SE) accounting data. Further analysis reveals that the smooth earnings provided by the FC method contributes to the higher value relevance of the FC method. This study concludes that a policy of full capitalization of expenditures with uncertain future economic benefits better summarizes information relevant to investors relative to a policy of partial capitalization.     

The Dynamics of the S&P 500 Implied Volatility Surface

This empirical study is motivated by the literature on “smile-consistent” arbitrage pricing with stochastic volatility. We investigate the number and shape of shocks that move implied volatility smiles and surfaces by applying Principal Components Analysis. Two components are identified under a variety of criteria. Subsequently, we develop a “Procrustes” type rotation in order to interpret the retained components. The results have implications for both option pricing and hedging and for the economics of option pricing. This revised version was published online in June 2006 with corrections to the Cover Date.     

Leverage vs. feedback: Which Effect drives the oil market?

This article brings new insights on the role played by (implied) volatility on the WTI crude oil price. An increase in the volatility subsequent to an increase in the oil price (i.e. inverse leverage effect) remains the dominant effect as it might reflect the fear of oil consumers to face rising oil prices. However, this effect is amplified by an increase in the oil price subsequent to an increase in the volatility (i.e. inverse feedback effect) with a two-day delayed effect. This lead-lag relation between the oil price and its volatility is central to any type of trading strategy based on futures and options on the OVX implied volatility index. It is of interest to traders, risk- and fund-managers.     

Basis variations and regime shifts in the oil futures market

The conditional volatility of crude oil futures returns is modelled as a regime switching process. The model features transition probabilities that are functions of the basis. Consistent with the theory of storage, in volatile periods, an increase in backwardation is associated with an increase in the likellihood of switching to or remaining in the high-volatility state. Conditional on regimes, GARCH persistence is significantly reduced. Out-of-sample tests show that incorporating regime shifts improves the accuracy of short-term volatility forecasts.     

Does the Use of Foreign Currency Derivatives Affect Firms' Market Value? Evidence from Colombia

High returns in emerging markets over the last decade have attracted international investors. This study investigates if and how economic or political news affects stock market activity in two emerging markets: Argentina and Turkey. Our analysis shows that political and economic news influences both the volatility of returns and trading volume in these markets to varying degrees. Results suggest that both economic and political factors, as well as specific market characteristics, should be taken into consideration by international investors when making investment decisions in emerging markets.     

An Empirical Study of Volatility in Seven Southeast Asian Stock Markets Using ARV Models

This paper investigates the volatility persistence, volatility variability from day to day and transmission of volatility in seven Southeast Asian stock markets from 1980 to 1991 using the ARV approach. We found strong evidence that shocks to volatility are persistent in Taiwan. Moreover, the Stock Exchange of Thailand Daily Index has the strongest interday volatility fluctuation. Instantaneous causality of volatility among six of the seven markets (except Seoul) was discovered. Besides, there is significant volatility spillover effect from Hong Kong to Taiwan, Malaysia to Singapore and Singapore to Malaysia in the period 1980 to 1991.     

The relationship between implied and realized volatility: evidence from the Australian stock index option market

This paper examines the relationship between the volatility implied in option prices and the subsequently realized volatility by using the S&P/ASX 200 index options (XJO) traded on the Australian Stock Exchange (ASX) during a period of 5 years. Unlike stock index options such as the S&P 100 index options in the US market, the S&P/ASX 200 index options are traded infrequently and in low volumes, and have a long maturity cycle. Thus an errors-in-variables problem for measurement of implied volatility is more likely to exist. After accounting for this problem by instrumental variable method, it is found that both call and put implied volatilities are superior to historical volatility in forecasting future realized volatility. Moreover, implied call volatility is nearly an unbiased forecast of future volatility.

美国油气法捕获规则的形成与发展——兼及对中国立法的启示

美国油气法捕获规则系判例法确立的一项产权制度,从野生动物捕获规则移植而来.该规则对美国石油天然气产业发展起到了极大的促进作用,但同时也产生了过度开采、资源浪费等问题.美国各州相继通过颁布强制联营规则、井间距规则、禁止浪费规则等一系列配套立法对油气法捕获规则进行修改和限制,提高了油气开采效率,保证了油气产业的有序发展.借鉴美国油气法捕获规则的立法与司法经验,我国未来石油天然气立法应当制定油气资源矿业权重叠情形下的联合开发规则,同时应当完善石油天然气上游产业市场准入制度和油气开采监管制度.     

国内人民币期权产品概述及应用

在岸人民币期权产品的推出,既丰富了境内人民币外汇市场的交易品种,又为投资者提供了一种对冲人民币汇率风险的避险工具。与发展已久的离岸人民币期权市场相比,在岸人民币期权市场尚处在初期阶段,不但需要培育相应的期权产品客户,还需要随着人民币期权市场的不断发展,进一步完善期权的定价和交易规则。帮助企业了解人民币期权、挖掘人民币期权的实际需求对于目前人民币期权市场的发展具有重要意义。