government incentive strategies and private capital participation in china s shale gas development abstractshale gas development investments are uncertain and irreversible in the initial stage in china flexible incentive strategy is needed for governments to guide private capital participation at different development stages this study aims to provide analysis governments can use to encourage private investment in shale gas projects according to its plans in an extended real options framework a social benefits variable is introduced to determine the threshold of social benefits that determine whether the government will choose a deferred or instant incentives strategy by considering the efficiency factor we show the optimal arrangements of two kinds of incentives tax cuts and production subsidies to implement incentive targets the results indicate that current market demand and social benefits are the key factors that affect the government s choice of incentive strategy we also find that the optimal level of incentives either tax cuts or production subsidies are independent of current market

an experimental investigation of the hahn noll revenue neutral auction for emissions licenses abstract this paper reports on three series of laboratory experiments designed to test the performance of the hahn noll revenue neutral auction rna an alternative institution a no rebate uniform price auction upa is also examined as a benchmark in these experiments the rna markets were little different from upa markets in terms of either prices or market efficiencies the two institutions did differ in terms of the distribution of the gains from exchange and of the propensity of bidders to engage in a certain type of overbidding

management of social issues in supply chains a literature review exploring social issues actions and performance outcomes the social dimension of sustainable development and its impact on supply chains have so far received less attention than the environmental dimension the aim of the research is to explore the intersection between social issues corporate social responsibility csr actions and performance outcomes a structured literature review of social issues in supply chains is presented analysing the research published so far in peer reviewed publications linking csr and supply chain management allows the exploration of strategies and performance outcomes with a focus on social issues the corresponding responsible supply chain actions adopted by firms to address these issues are grouped into communication compliance and supplier development strategies social and economic as well as buyer and supplier performance are identified as the key outcomes but the interactions among these constructs would require further research this paper contributes to the understanding of managing social issues in supply chains by linking social issues responsible supply chain actions and performance outcomes the paper consolidates related research by offering an overarching conceptual framework and points to future research directions and simultaneously provides insights into the management of social issues in supply chains

valuing oil properties integrating option pricing and decision analysis approaches there are two major competing procedures for evaluating risky projects where managerial flexibility plays an important role one is decision analytic based on stochastic dynamic programming and the other is option pricing theory or contingent claims analysis based on the no arbitrage theory of financial markets in this paper we show how these two approaches can be profitably integrated to evaluate oil properties we develop and analyze a model of an oil property either a developed property or a proven but undeveloped reserve where production rates and oil prices both vary stochastically over time and at any time the decision maker may terminate production or accelerate production by drilling additional wells the decision maker is assumed to be risk averse and can hedge price risks by trading oil futures contracts we also describe extensions of this model that incorporate additional uncertainties and options discuss its use in exploration decisions and in evaluating a portfolio of properties rather than a single property and briefly describe other potential applications of this integrated methodology

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

estimating value at risk of crude oil price and its spillover effect using the ged garch approach estimation has been carried out using garch type models based on the generalized error distribution ged for both the extreme downside and upside value at risks var of returns in the wti and brent crude oil spot markets furthermore according to a new concept of granger causality in risk a kernel based test is proposed to detect extreme risk spillover effect between the two oil markets results of an empirical study indicate that the ged garch based var approach appears more effective than the well recognized hsaf i e historical simulation with arma forecasts moreover this approach is also more realistic and comprehensive than the standard normal distribution based var model that is commonly used results reveal that there is significant two way risk spillover effect between wti and brent markets supplementary study indicates that at the 99 confidence level when negative market news arises that brings about a slump in oil price return historical information on risk in the wti market helps to forecast the brent market conversely it is not the case when positive news occurs and returns rise historical information on risk in the two markets can facilitate forecasts of future extreme market risks for each other these results are valuable for anyone who needs evaluation and forecasts of the risk situation in international crude oil markets

international emissions trading under the kyoto protocol credit trading abstract the kyoto protocol allows emissions trading between countries the protocol does however not specify how such trade is to take place so far two options have been discussed in the literature government trading and permit trading this paper discusses a third option credit trading credit trading is based on abatement projects but differs from joint implementation in that it does not require direct foreign investment furthermore credit trading can be implemented both domestically and internationally the main advantages of credit trading are that it excludes trading in hot air while it still makes trade between private entities possible however the environmental effectiveness is doubtful especially when it is based on relative targets the paper shows that several interest groups prefer credit trading based on relative targets to permit trading also governments may have reasons to prefer credit trading to permit trading hence the political acceptability of credit trading is larger than that of permit trading making it more likely that credit trading will be allowed than permit trading

energy investment risk assessment for nations along china s belt road initiative abstract overseas energy investment as an effective way of securing energy supply is being favored by the world s leading energy consuming countries however energy investment has the potential high risk on multiple forms including political and regulatory risk currency liquidity and refinancing risk as well as resource risk and so on to effectively evaluate overseas energy investment risk this study proposed a new indicator system from six dimensions furthermore a fuzzy integrated evaluation model based on the entropy weight was constructed to rate the energy investment risk for 50 nations along china s belt road initiative the findings indicate that resource potential and chinese factors have become the main determinant of energy investment risk while environmental constraints and political risk should also be considered for investing decisions in conclusion saudi arabia united arab emirates pakistan kazakhstan and russia are the most ideal choices for china s energy investment balancing resource potential and investment environment

can double auctions control monopoly and monopsony power in emissions trading markets abstract we conduct a laboratory experiment to investigate whether the double auction institution can suppress market power in emissions trading markets we study 24 markets with varying market structure in a aba crossover design which controls for subject effects we find clear evidence of successful use of market power average prices rise under monopoly and fall under monopsony opening prices are affected much more than closing prices profits are redistributed in favor of the agent with power efficiency is not affected significantly analysis of convergence trends suggests that this is not a transitory phenomenon we interpret our results as evidence of successful price discrimination within a double auction market

policy uncertainties what investment choice for solar panel producers abstract solar power has achieved great development in the last decade and it should continue to play a central role in the face of climate change and sustainable development challenges this paper builds a real options model that provides a microeconomic analytical framework with the least squares monte carlo lsm method to assess the investment choices of a typical solar panel producer in china facing trade and domestic supply and demand side policy uncertainties it builds a baseline scenario and three policy scenarios with decreasing anti dumping and countervailing charges constant feed in tariff fit level and reduced investment cost a typical producer will have to make an investment decision on building a new production line in five years based on a decision impact analysis within 20 years the result shows an immediate investment decision for all scenarios the producer will have higher return from investment in building a solar power plant with a constant fit export is the optimal choice in other scenarios where investment return is lower after sensitivity analysis the paper concludes and can be used as a toolkit for solar panel producers and a reference for policy makers to evaluate the impact of policy uncertainties

options in the real world lessons learned in evaluating oil and gas investments many firms in the oil and gas business have long used decision analysis techniques to evaluate exploration and development opportunities and have looked at recent development in option pricing theory as potentially offering improvements over the decision analysis approach unfortunately it is difficult to discern the benefits of the options approach from the literature on the topic most of the published examples greatly oversimplify the kinds of projects encountered in practice and comparisons are typically made to traditional discounted cash flow analysis which unlike the option pricing and decision analytic approaches does not explicitly consider the uncertainty in project cash flows in this paper we provide a tutorial introduction to option pricing methods focusing on how they relate to and can be integrated with decision analysis methods and describe some lessons learned in using these methods to evaluate some real oil and gas investments

corporate responsibility in scandinavian supply chains this article examines corporate responsibility in the supply chains of four of the largest scandinavian multinational corporations ikea nokia novo nordisk and statoilhydro and offers two key findings first these scandinavian companies have all implemented responsible supply chain practices where suppliers in developing nations and the communities of these suppliers are engaged as key stakeholders and treated as partners second these supply chain practices all share the common bond of having honesty and the establishment of trust based relationships at their foundation as a result these scandinavian companies have developed a cooperative advantage in their ability to form successful long term partnerships in their respective supply chains

strategic growth options we provide a strategic rationale for growth options under uncertainty and imperfect competition in a market with strategic competition investment confers a greater capability to take advantage of future growth opportunities this strategic advantage leads to the capture of a greater share of the market either by dissuading entry or by inducing competitors to make room for the stronger competitor as a result of this strategic effect payoffs are in a rough sense more convex than in the case of no investment in a growth option when the strategic advantage is strong increased uncertainty encourages investment in growth options higher uncertainty means more opportunity rather than simply larger risk if the strategic effect is weak the reverse is true on the other hand an increase in systematic risk discourages the acquisition of growth options our results contradict the view that volatility is a strong disincentive for investment

a profit driven approach to building a people responsible supply chain abstract today an increasing number of companies have publicized policies to improve corporate social responsibility performance related to human resources in their supply chain management practices such as safer and healthier working conditions higher payment better benefits and fewer working hours however there are still concerns about the sincerity and effectiveness of such efforts this could be attributed to the fact that the economic benefit of those improvements is not clearly structured as an integral part in the companies decision making process in this paper we develop a stylized analytic framework that links a firm s supply chain social performance in people with its economic performance in profit specifically we examine how consumers responses to the outbreak of social misconduct in supply chains affect competing firms market segmentation and profit and subsequently provide economic incentive for proactive social responsibility investment closed form optimal solutions for proactive social responsibility strategy are found for our model setup numerical tests and sensitivity analyses have been conducted to study the effects of various factors on the firms supply chain social responsibility strategies factors such as consumers ethical disposition the social environment and consumers perception of a product s functional versus social value are a few among them the results of our analysis demonstrate that proactive investment in supply chain social responsibility can enhance a firm s competitive advantage and economic performance thereby suggesting a profit driven approach to achieving supply chain social responsibility and sustainability

real options for risk management in petroleum development investments irreversible investments made with incomplete information are the mainstay of the petroleum industry sequential non repetitive investment decisions with alternative pathways associated with exploration through full field development are common we demonstrate a policy development approach that combines the bellman equation for dynamic programming with a real options valuation algorithm this represents the first demonstration of the mathematical union of the two techniques for branching decision pathways producing a generalized policy development framework that provides risk management of investments production expansion investment decisions for a central asian gas condensate field are analyzed using the framework

a real options model for renewable energy investment with application to solar photovoltaic power generation in china this paper proposes a real options model for evaluating renewable energy investment by considering uncertain factors such as co2 price non renewable energy cost investment cost and market price of electricity a phase out mechanism is built into the model to reflect the long term changes of subsidy policy we apply the proposed model to empirically evaluate the investment value and optimal timing for solar photovoltaic power generation in china our empirical results show that the current investment environment in china may not be able to attract immediate investment while the development of carbon market helps advance the optimal investment time a sensitivity analysis is conducted to investigate the dynamics of investment value and optimal timing under the changes of unit generating capacity subsidy level market price of electricity co2 price and investment cost it is found that the high investment cost and the volatility of electricity and co2 prices are not conducive to attract immediate investment instead increasing the level of subsidy promoting technological progress and maintaining the stability of market are useful to stimulate investment

the effect of uncertainty on investment timing in a real options model abstract this paper examines the effect of uncertainty on investment timing in a canonical real options model we show that the critical value of a project that triggers the exercise of the investment option exhibits a u shaped pattern against the volatility of the project this is due to the two countervailing risk and return factors in effect we further show that such a u shaped pattern is inherited by the expected time to exercise the investment option thus for relatively safe projects greater uncertainty shortens the expected exercise time and thus enhances investment this is in sharp contrast to the negative investment uncertainty relationship commonly found in the extant literature finally we show that the positive investment uncertainty relationship is more likely for high growth projects than for low growth projects

on the investment uncertainty relationship in a real options model abstract it appears to be widely accepted in the real options literature that an increase in uncertainty should have an inhibiting effect on investment our article demonstrates that the notion of a negative uncertainty investment relationship is not always correct we show that in certain situations an increase in uncertainty can actually increase the probability of investing and thereby have a positive impact on investment

investment under alternative return assumptions comparing random walks and mean reversion abstract many recent theoretical papers have come under attack for modeling prices as geometric brownian motion this process can diverge over time implying that firms facing this price process can earn infinite profits we explore the significance of this attack and contrast investment under geometric brownian motion with investment assuming mean reversion while analytically more complex mean reversion in many cases is a more plausible assumption allowing for supply responses to increasing prices we show that cumulative investment is generally unaffected by the use of a mean reversion process rather than geometric brownian motion and provide an explanation for this result

optimal design of subsidy to stimulate renewable energy investments the case of china this paper proposes a real options model for estimating the optimal subsidy for renewable energy power generation project by using stochastic process to describe the market price of electricity co2 price and investment cost two indicators i e project value and threshold value are used to derive the optimal subsidy the least squares monte carlo simulation method is used to solve the model the proposed model is used to empirically evaluate the optimal level of subsidy for solar photovoltaic power generation in china the results show that carbon emission trading scheme helps reduce subsidy unit generating capacity market price of electricity co2 price and the volatility of investment cost are negatively related with subsidy whereas investment cost and the volatility of electricity price and co2 price are positively related with subsidy it is suggested that chinese governments take some measures e g promoting technological progress establishing a nationwide carbon emission trading market promoting the competition in renewable energy industry as well as maintaining the stability of co2 price and electricity price to reduce the required subsidy

designing organizations for trading pollution rights regulators and academicians have recently become interested in using a marketable permits program as a new way to control aggregate pollution emissions our research focuses on choosing a permit trading mechanism that is both economically efficient and politically viable we consider an organized trading process and a revenue neutral auction both of which involve an initial allocation of permits based on past history each is tested in a competitive and in a non competitive environment to determine which mechanism performs best the results of our research suggest that overall the organized trading process outperforms the revenue neutral auction

option valuation of claims on real assets the case of offshore petroleum leases this paper extends financial option theory by developing a methodology for the valuation of claims on a real asset an offshore petroleum lease several theoretical and practical problems not present in applying option pricing theory to financial assets are addressed most importantly we show the necessity of combining option pricing techniques with a model of equilibrium in the market for the underlying asset petroleum reserves the advantages of this approach over conventional discounted cash flow techniques are emphasized the methodological development provides important insights for both company behavior and government policy promising empirical results are reported

valuing risky projects option pricing theory and decision analysis in the academic literature and professional practice there are a number of alternative and apparently competing methods for valuing risky projects in this paper we compare and contrast three different approaches risk adjusted discount rate analysis option pricing analysis and decision analysis focusing on the last two we show that in contrast to some of the claims made in the real options literature when both option pricing and decision analysis methods are correctly applied they must give consistent results we also explore ways in which option pricing and decision analysis methods can be profitably integrated in particular we show how option pricing techniques can be used to simplify decision analysis when some risks can be hedged by trading and conversely how decision analysis techniques can be used to extend option pricing techniques to problems with incomplete securities markets

on the sign of the investment uncertainty relationship understanding the effects of uncertainty over any decision variable has fascinated economists for a long time risk aversion and incomplete markets are likely to make the investment uncertainty relationship negative e g roger craine 1989 joseph zeira 1989 what happens in the absence of risk aversion and incomplete markets is however ambiguous richard hartman 1972 and andrew b abel 1983 1984 1985 found that in the presence of symmetric convex costs of adjustment mean preserving increases in price uncertainty raise investment of a competitive firm as long as the profit function is convex in prices on the other hand the recent literature on irreversible investment e g robert s pindyck 1988 giuseppe bertola 1988 has shown that increases in uncertainty lower investment all these results have been derived under either risk neutrality or complete markets intuition suggests that the explanation for such a difference lies with the asymmetric nature of adjustment costs in the irreversible investment case as compared with the symmetry of the adjustment cost mechanisms proposed by abel and hartman although this intuition is confirmed in this paper asymmetric adjustment costs are shown not to be sufficient to explain why the results differ in fact a more hidden but at least as important difference between these two literatures is that the former assumes perfect competition and constant returns to scale whereas the latter assumes either imperfect competition or decreasing returns to scale or both 2 the purpose of this paper is to highlight the role of the decreasing marginal return to capital assumption due to either imperfect competition or decreasing returns to scale or both in determining the effects of adjustment cost asymmetries on the sign of the response of investment to changes in uncertainty under risk neutrality for this the paper develops a simple model with a cost of adjustment mechanism general enough to consider both symmetric convexity and irreversibility as special cases one of the most important findings is the lack of robustness of the negative relationship between investment and uncertainty under asymmetric adjustment costs3 to changes in the degree of competition in fact when firms are nearly competitive the conclusion of hartman and of abel holds no matter how asymmetric adjustment costs are studying adjustment cost mechanisms has a central role in understanding the dynamics of investment and its business cycle implications but conclusive results about the sign of the instantaneous relationship between uncertainty and investment should not be department of economics columbia university new york ny 10027 i am grateful to giuseppe bertola prajit dutta glen hubbard anil kashyap richard lyons and the referees for their useful comments 1the financial literature on investment has considered risk aversion through a premium in the discount rate determined by the capm capital asset pricing model intertemporal capm or consumption capm however often this discount rate is left unchanged when studying the response of investment to uncertainty changes e g pindyck 1988 pp 974 5 thereby omitting the effect of changes in uncertainty on investment due to risk aversion and incomplete markets 2in the typical version of the irreversible investment problem there is no cost of upward adjustments thus imperfect competition and or decreasing returns to scale are required to bound the size of the firm 3in this paper asymmetric adjustment cost refers to the case in which it is more expensive to adjust downward than upward certainly the opposite case is a trivial extension of the case studied in this paper

price expectations and international quota trading an experimental evaluation this paper reports a preliminary experimental test of international quota trading on a market characterized by several dominant traders uncertain quota demand and supply imply true market clearing prices that in general differ from an expected competitive quota price however in the experiment the expected price level emerges as a focal point on which the bulk of quota trade contracts are keyed thus incomplete price discovery occurs

buyer liability and voluntary inspections in international greenhouse gas emissions trading a laboratory study this paper reports a preliminary laboratory experiment in which traders make investments to increase the reliability of tradable instruments that represent greenhouse gas emissions allowances in one half of the sessions these investments are unobservable while in the other half traders can invite costless and accurate inspections that make reliability investments public we implement a buyer liability rule so that if emissions reductions are unreliable i e sellers default the buyer of the allowances cannot redeem them to cover emissions we find that allowing inspections significantly increases the reliability investment rate and overall efficiency prices of uninspected allowances usually trade at a substantial discount due to the buyer liability rule which provides a strong market incentive for sellers to invest in reliability

risk and return in oilfield asset holdings abstract convention suggests that emerging market investment should provide commensurately lower risk or higher returns than comparable assets in developed countries this study demonstrates that emerging markets contain regulatory specificities that challenge asset valuation model convergence and potentially invert risk return convention 292 oilfield assets are used to provide evidence that under upward oil prices emerging markets are characterized by progressive state participation in oilfield cash flows specifically this work advances the low oil price paradigm of prior oil and gas asset valuation studies and provides evidence that emerging market state participation terms limit the corporate value of globalization for the sector

a real options based model and its application to china s overseas oil investment decisions abstract this paper applies real options theory to overseas oil investment by adding an investment environment factor to oil resource valuation a real options model is developed to illustrate how an investor country or oil company can evaluate and compare the critical value of oil resource investment in different countries under oil price exchange rate and investment environment uncertainties the aim is to establish a broad model that can be used by every oil investor country to value overseas oil resources the model developed here can match three key elements 1 deal with overseas investment the effects of investment environment and exchange rates 2 deal with oil investment oil price production decline rate and development cost etc 3 the comparability of the results from different countries different countries oil investment situation can be compared by using the option value index ovi china s overseas oil investment is taken as an example to explain the model by calculating each oil investee country s critical value per unit of oil reserves and examining the effect of different factors on the critical value the results show that the model developed here can provide useful advice for china s overseas oil investment program the research would probably also be helpful to other investor countries looking to invest in overseas oil resources

mean reversion in equilibrium asset prices evidence from the futures term structure we use the term structure of futures prices to test whether investors anticipate mean reversion in spot asset prices the empirical results indicate mean reversion in each market we examine for agricultural commodities and crude oil the magnitude of the estimated mean reversion is large for example point estimates indicate that 44 percent of a typical spot oil price shock is expected to be reversed over the subsequent eight months for metals the degree of mean reversion is substantially less but still statistically significant we detect only weak evidence of mean reversion in financial asset prices in this study we provide evidence of mean reversion in the prices of several real and financial assets rather than examining evidence of ex post reversion using time series of asset prices we use price data from futures contracts with varying delivery horizons to test whether investors expect asset prices to revert this approach offers two advantages first since futures prices are readily available for many markets our procedure can be implemented for many assets including those for which reliable spot price data is elusive second there is little ambiguity as to the source of any mean reversion detected using our method subject only to the maintained assumption that the no arbitrage cost of carry condition holds our test detects mean reversion that is expected to occur in equilibrium but has no power to detect mean reversion resulting from noise or inefficiencies our methodology focuses on relations between price levels and the slope of the futures term structure defined as the change across delivery dates in the futures prices observed on a given trading date an inverse relation between prices and the futures term slope constitutes evidence that investors expect mean reversion in spot prices to illustrate initially assume there are no

irreversible investment uncertainty and ambiguity the case of bioenergy sector we analyze production and investment decisions of an agent in industrial activities that are characterized by two forms of uncertainty demand uncertainty in terms of number of buyers and competitive effect uncertainty in terms of other energy resource we apply our model on the bioenergy industries we compare the case of an ambiguity neutral agent with that of an ambiguity averse agent we show that the investment decision of an agent depends on the effects of both the capital investment and the level of production on the cost and the uncertainty the agent is confronted with moreover we find that ambiguity aversion tends to decrease the agent s optimal levels of production and investment our numerical analysis of the french case illustrates the different effects associated with demand uncertainty and competitive effect uncertainty

investment under uncertainty the case of replacement investment decisions we analyze the determinants of replacement investment decisions in a contingent claims model with maintenance and operation cost uncertainty we find that the optimal time between replacements is increasing in the volatility of cost the purchase price of a new asset and the corporate tax rate and is decreasing in the systematic risk of cost the salvage value of the asset and the investment tax credit the optimal time between replacements can either increase or decrease with an increase in the depreciation rate extensions of the model to examine the effects of technological and tax policy uncertainty on replacement investment decisions give intuitive but striking results uncertainty about the arrival of a technological innovation that would decrease maintenance and operation cost results in a significant decrease in replacement investment uncertainty in a tax law change that would encourage investment decreases current investment and uncertainty in a tax law change that would discourage investment increases current investment

heterogeneity irreversible production choices and efficiency in emission permit markets abstract this paper investigates a class of market mechanisms for environmental regulation based on the clean air act tradable discharge permit program laboratory market experiments capture some of the more salient institutional features and focus on issues of firm technological heterogeneity and irreversible investment regarding the operation of the permit market experimental results suggest that higher degrees of abatement cost heterogeneity may lead to reduced trade volume while the implications of increased cost heterogeneity regarding price volatility are mixed finally increased cost heterogeneity appears to result in decreased laboratory efficiency

the use of real options approach in energy sector investments abstract energy shortage global warming and climate change led to an increase in the use of alternative sources of energy with renewable energy sources res playing a fundamental role in this new energetic paradigm however the investment costs often constitute a major barrier to their spread use moreover the overall benefits of renewable energy technologies are often not well understood and consequently they are often evaluated to be not as cost effective as traditional technologies from the moment that the energy sector started a deregulation process with a high level of competitiveness and associated increased market uncertainty traditional project evaluation techniques alone became insufficient to properly deal with these additional risk and uncertainty factors the diffusion of the renewable energy technologies is also affected by this feature the way investors evaluate their investments call now for the use of more sophisticated evaluation techniques real options approach can deal with these issues and as so began to be considered and applied for the energy sector decision aid this approach it is now extensively widespread in evaluating investment projects in the energy sector a large set of applications in almost all fields of energy decision making from electricity generation technologies appraisal to policy evaluation is available in the literature however the use of this technique in the field of res is still limited and worth to be analysed this paper addresses this issue a review of the current state of the art in the application of real options approach to investments in non renewable energy sources and res is presented giving perspectives for further research in this field

understanding the relation between accruals and volatility a real options based investment approach abstract accruals are fundamental to financial reporting and are the underlying innovation of accounting despite this accounting research has provided little understanding of how economic forces affect a firm s level of accruals and limited guidance for forming expectations of accruals based on ex ante firm characteristics we consider accruals as a form of investment and examine whether theoretical predictions from a real options based investment framework provide insight into the relation between accruals and the ex ante expected volatility faced by the firm specifically the theory predicts that higher volatility dampens investment because firms prefer to wait and see instead of investing immediately consistent with this theory we document a robust negative relation between year ahead net working capital accruals and expected volatility we also predict and find that the negative association between year ahead net working capital accruals and expected volatility is less pronounced for distressed firms and more pronounced for firms with a longer operating cycle and that current asset accruals are more sensitive to volatility than current liability accruals finally we find that the residuals from an investment based expected accrual model outperform those from the widely used performance adjusted modified jones model in identifying companies that just meet or beat analysts earnings forecasts collectively our findings suggest that the investment perspective of accruals and in particular the real options based investment framework provide useful insights for forming expectations of accruals

labour leverage in global value chains the role of interdependencies and multi level dynamics the global segmentation of production and distribution has resulted in highly complex global value chains gvcs where vertical and horizontal dynamics are equally important in determining working conditions and providing points of leverage for labour borrowing notions of multi level governance we propose an analytical framework for describing and explaining success and failure of labour agency when attempting to improve working conditions along gvcs our starting point is that the high complexity of gvcs and the absence of a global overarching authority have been balanced by the emergence of governance mechanisms of different forms and at different levels an assessment of these mechanisms which emphasize process over institutions reveals how different types of interactions and interdependencies along gvcs impact on labour s use of power we argue that in order to fully situate labour agency within governance debates any future research agenda needs to be driven by micro level bottom up approaches

csr disclosure and sustainable supplier management a small to medium sized enterprises perspective the respective literatures on corporate social responsibility csr disclosure and sustainable supplier management have grown in recent years but little scholarly attention has been paid to the li

environmental labeling and incomplete consumer information in laboratory markets abstract survey evidence suggests that consumers care about the environment and are willing to pay a higher price for a product that generates less environmental harm we induce buyer preferences over quality in a laboratory posted offer market to study sellers incentives to offer products of differing quality buyers are unaware of the product quality before purchase as is often the case for goods with differing environmental quality we first document the market failure that arises from incomplete information when no signaling or reputations are possible we then study various treatments that could remedy this failure seller reputations and unverified cheap talk signals sometimes increase the number of higher valued green goods the only reliable way to improve product quality in the experiment however is to use a third party that charges a fee to certify product quality claims