cores of inventory centralization games abstract consider a set of n stores with single item and single period demands assume an option of centralized ordering and inventory with holding and penalty costs only in this case a cooperative inventory centralization game defines allocations of the cost we examine the conditions under which such an inventory centralization game has a nonempty core we prove the existence of nonempty core for demands with symmetric distributions and the existence of nonempty core for joint multivariate normal demand distribution we establish the equivalency of four different nonempty core conditions for the newsboy problem and demonstrate their efficacy for discrete independent and identically distributed iid demands journal of economic literature classification numbers c44 c62 c71

conceptualising energy use and energy poverty using a capabilities framework in this article we conceptualise energy use from a capabilities perspective informed by the work of amartya sen martha nussbaum and others following them building on this we suggest a corresponding definition of energy poverty as understood in the capabilities space we argue that such an understanding provides a theoretically coherent means of comprehending the relationship between energy and wellbeing and thus conceptualising energy deprivation that makes sense across settings including both the global north and south a coherence which has previously been lacking at the same time it has the flexibility to be deployed in a way that is sensitive to local contexts understanding energy use in the capabilities space also provides a means for identifying multiple sites of intervention including some areas that are currently largely overlooked we argue that this is advantageous for attempts to address energy poverty in the context of climate change and imperatives for the containment of aggregate energy consumption

an extended production recycling model with stationary demand and return rates abstract a production recycling system is investigated a constant demand can be satisfied with production and recycling the used items are bought back and then recycled the non recycled products are disposed of two types of models will be analyzed the first model examines the eoq related costs and minimizes the relevant costs the second model generalizes the first model with the introduction of the cost function with linear waste disposal recycling production and buyback costs it is asked whether the pure either production or recycling or mixed strategies are optimal and it will be shown that under these circumstances the mixed strategies are dominated by the pure strategies the paper generalizes a former model proposed by the authors for the case of one recycling and one production batch to the case of arbitrary batch numbers

investment based financing constraints and debt renegotiation we consider how equity holders bargaining power during financial distress influences the interactions between financing and investment decisions when the firm faces the upper limit of debt issuance we obtain four results first weaker equity holders bargaining power is more likely that the firm is financially constrained second the investment quantity is independent of equity holders bargaining power third the constrained credit spreads are increasing with equity holders bargaining power contrary to the unconstrained ones fourth higher volatility and weaker equity holders bargaining power are likely that the firm prefers to issue debt with renegotiation compared with debt without renegotiation c 2014 elsevier b v all rights reserved

stability and endogenous formation of inventory transshipment networks this paper studies a cooperative game of inventory transshipment among multiple firms in this game firms first make their inventory decisions independently and then decide collectively how to transship excess inventories to satisfy unmet demands in modeling transshipment we use networks of firms as the primitive which offer a richer representation of relationships among firms by taking the coalitions used in all previous studies as special cases for any given cooperative network we construct a dual price allocation under which the network is stable for any residual demands and supplies in the sense that no firms find it more profitable to form subnetworks under the allocation based on the marginal contribution of each firm to its network called the mjw value we show that various network structures such as complete hub spoke and chain networks are stable only under certain conditions on residual amounts moreover these conditions differ across network structures implying that a network structure plays an important role in establishing the stability of a decentralized transshipment system finally we consider the case when firms establish networks endogenously and show that pairwise nash stable networks underperform the corresponding networks in centralized systems

competition and cooperation in decentralized push and pull assembly systems in this paper we study a decentralized assembly system consisting of a single assembler who buys complementary components from independent suppliers under two contracting schemes push and pull in both schemes the component suppliers are allowed to freely form coalitions or alliances among themselves to better coordinate their pricing or production decisions we show that the sole driver of the inefficiency in a push system which is due to horizontal decentralization of suppliers is the number of alliances that were formed specifically it is shown that in a push system the assembler s profit the total profit of all suppliers and the consumers surplus are all decreasing in the number of coalitions and are thus maximized when the grand coalition is formed we further carry out a stability analysis of coalition structures to verify to what extent suppliers can reduce or eliminate the inefficiency due to their decentralization by forming alliances we show that in a push system with more than two

investment uncertainty and liquidity we analyze the dynamic investment decision of a firm subject to an endogenous financing constraint the threat of future funding shortfalls lowers the value of the firm s timing options and encourages acceleration of investment beyond the first best optimal level as well as highlighting another way by which capital market frictions can distort investment behavior this result implies that 1 the sensitivity of investment to cash flow can be greatest for high liquidity firms and 2 greater uncertainty has an ambiguous effect on investment

real options agency conflicts and optimal capital structure abstract we examine the impact of a stockholder bondholder conflict over the timing of the exercise of an investment option on firm value and corporate financial policy we find that an equity maximizing firm exercises the option too early relative to a value maximizing strategy and we show how this problem can be characterized as one of overinvestment in risky investment projects equityholders incentive to overinvest significantly decreases firm value and optimal leverage and significantly increases the credit spread of risky debt numerical solutions illustrate how the agency cost of overinvestment and its effect on corporate financial policy vary with firm and project characteristics

trapped in the heat a post communist type of fuel poverty abstract fuel poverty is a still insufficiently researched social and energy challenge with significant climate change implications based on evidence from hungarian panel apartment blocks connected to district heating this paper introduces a new variant of fuel poverty that may not be properly captured by existing fuel poverty indicators this newly defined variant can be largely attributed to post communist legacies though it might also exist in other contexts and assumes that consumers living in poor efficiency district heated buildings are trapped in dwellings with adequate indoor temperatures but disproportionately high heating costs because a changing supplier or fuel is difficult because of the existing technical and institutional constraints and b they do not realistically have the option to reduce individually their heating costs through individual efficiency improvements this situation often translates into payment arrears indebtedness risk of disconnection or reduced consumption of other basic goods and services state supported policy responses to date have favoured symptomatic solutions direct consumer support combined with superficial retrofits though it is argued that only state of the art retrofits such as the passive house based solanova pilot project in dunaujvaros can fully eradicate fuel poverty in this consumer group

does energy poverty really exist in china from the perspective of residential electricity consumption abstract china is undergoing a market oriented reform in energy and the residential sector will be involved in the near future the analysis of energy poverty is crucial in breaking the illusion of the dilemma between enhancing energy efficiency and controlling poverty based on chinese residential energy consumption survey we firstly estimated the energy poverty in china by the 10 indicator and lihc indicators and then proposed a minimum end use method to classify the energy poor households into lifeline and consumption energy poverty results show that energy poverty exists in china at the proportion of 18 9 and 46 of the energy poor houses are in short of modern energy consumption and are sensitive to tariffs with a level of electricity consumption lower than the basic demand the energy poverty rate is highest in central china while the lifeline energy poor are relatively concentrated in the western region in terms of public policy we suggest focusing on heterogeneity by considering different groups of households when implementing energy efficiency measures and targeting more on the consumption energy poor in poverty alleviation we also suggest paying particular attention to targeting households with low income by supporting practices such as coupons for energy consumption and appliance purchasing

investment under uncertainty with strategic debt service the presence of a well designed bankruptcy code is an important part of the nancialarchitecture in developed economies by allowing the creditors to seize the assets of theborrowers who fail to make contractual payments the code generates bene cial ex ante e ectson debt capacity and rm value by giving the borrowers options to renegotiate their debtobligations and seek bankruptcy protection the code increases the likelihood that borrowersmay avoid ine cient ex post liquidation as hart 1999 notes the code should balanceex ante rm value maximization with ex post e ciency the bankruptcy codes in di erentcountries weight this tradeo di erently and hence vary in terms of the distribution of rightsand powers between borrowers and lenders in this paper we provide an inter temporal framework to examine how the creditors liquidation rights and the distribution of ex post bargaining powers in uence the rm s in vestment and nancing decisions and a ect ex ante rm value we show that strongerequityholders bargaining power lowers debt capacity reduces rm value and discouragesgrowth option exercising our calibration suggests that the quantitative e ects of ex poststrategic renegotiation on ex ante rm value may be large our paper provides an attempt to integrate nancial architecture into the theory of in vestment growth option exercising by building on two strands of literature investment anddebt pricing we extend the real options approach to investment pioneered by mcdonaldand siegel 1986 and brennan and schwartz 1985 to allow for capital structure decisionsunder strategic debt service we also draw insights from corporate debt pricing capital struc ture literature which focuses on leverage and security pricing after investment has alreadybeen made merton 1974 black and cox 1976 and leland 1994 our paper bridgesthe gap between these two strands of literature by characterizing the optimal investment and nancing decisions and the option value of waiting in closed form we show that the inter action between nancing and investment decisions in the presence of strategic debt servicegenerates new insights and also quantitatively important e ects on ex ante rm value

pricing and the news vendor problem a review with extensions in the newsvendor problem a decision maker facing random demand for a perishable product decides how much of it to stock for a single selling period this simple problem with its intuitively appealing solution is a crucial building block of stochastic inventory theory which comprises a vast literature focusing on operational efficiency typically in this literature market parameters such as demand and selling price are exogenous however incorporating these factors into the mode l can provide an excellent vehicle for examining how operational problems interact with marketing issues to influence decision making at the firm level in this paper we examine an extension of the newsvendor problem in which stocking quantity and selling price are set simultaneously we provide a comprehensive review that synthesizes existing results for the single period problem and develop additional results to enrich the existing knowledge base we also review and develop insight into a dynamic inventory extension of this problem and motivate the applicability of such models

economic analysis of paper recycling vis a vis wood as raw material abstract concerns for the environment has forced many firms define policies that protect the environment within which they operate this paper presents a linear optimization model for paper industry to compare total system cost of wood as a raw material with recycling of waste paper objective of the proposed model is to minimize the cost of paper in the supply chain costs included in the objective functions are costs for collection of raw material transportation inventory manufacturing segregation and disposal during recycling the model also includes the economic implications of using these alternative material sources on environment as well as quality of final product to gain further insights into system behavior sensitivity analysis shortage analysis and indifference curve analysis have been performed the analysis clearly reveals that the paper recycling is an economical option compared to wood as a raw material the paper analysis highlights various strategies that could be followed under different market conditions

technology choice under several uncertainty sources abstract we analyze a model of irreversible investment with two sources of uncertainty a risk neutral decision maker has the choice between two mutually exclusive projects under input price and output price uncertainty we propose a complete study of the shape of the rational investment region and we prove that it is never optimal to invest when the alternative investments generate the same payoff independently of its size a key feature of this bidimensional degree of uncertainty is thus that the payoff generated by each project is not a sufficient statistic to make a rational investment in this context our analysis provides a new motive for waiting to invest the benefits associated with the dominance of one project over the other as an illustration we apply our methodology to power generation under uncertainty

the newsvendor game has a nonempty core we settle an open conjecture regarding the newsvendor game we prove that its core is always non empty for all possible joint distributions of the random demands we give sufficient conditions under which the core is a singleton or it contains non negative elements

farsighted coalitional stability abstract i define the largest consistent set a solution concept which applies to situations in which coalitions freely form but cannot make binding contracts act publicly and are fully farsighted in that a coalition considers the possibility that once it acts another coalition might react a third coalition might in turn react and so on without limit i establish weak nonemptiness conditions and apply it to strategic and coalitional form games and majority rule voting i argue that it improves on the von neumann morgenstern stable set as it is usually defined but is consistent with a generalization of the stable set as in the theory of social situations journal of economic literature classification numbers c70 c71

assessing the determinants and drivers of multidimensional energy poverty in ghana abstract improving household access and use of clean energy has been central to global development efforts in recent years the negative effects of energy poverty on health climate livelihoods and economy has led to increased investments towards achieving universal access to clean energy however significant deprivations in clean energy remains especially in developing countries energy poverty may involve simultaneous deprivations on availability and affordability of clean energy using repeated cross sectional data this paper assesses the extent and determinants of multidimensional energy poverty in ghana between 2008 and 2014 the paper finds that though the level of multidimensional energy poverty reduced in ghana between 2008 and 2014 the incidence and intensity of multidimensional energy poverty remains high further we find substantial subgroup differences in multidimensional energy poverty the results reveal significant relationships between household characteristics and the multidimensional energy poverty status of households the reductions in multidimensional energy poverty were driven by the coefficient effects attributable to structural and policy changes over the period to facilitate universal access to clean energy and reduce the degree of multidimensional energy poverty there is the need to intensify the lpg promotion campaign and adopt strategies that target left behind and underserved groups

resource flexibility with responsive pricing this article studies two types of flexibility used by firms to better respond to uncertain market conditions resource flexibility and responsive pricing we consider a situation in which a single flexible resource can be used to satisfy two distinct demand classes while the resource capacity must be decided based on uncertain demand functions the resource allocation as well as the pricing decision are made based on the realized demand functions we characterize the effects of two key drivers of flexibility demand variability and demand correlation assuming normally distributed demand curve intercepts demand variability creates opportunity costs and with fixed prices decreases the firm s profit we show that with the additional flexibility gained from responsive pricing the firm can maximize the benefits of favorable demand conditions and mitigate the effects of poor demand conditions ultimately profiting from variability positive demand correlation on the other hand remains undesirable under responsive pricing the optimal capacity of the flexible resource is always increasing in both demand variability and demand correlation this contrasts with the scenarios based on fixed prices highlighting the crucial difference that responsive pricing makes in the management of flexible resources we further quantify the value of flexibility for the firm and its customers by considering as a benchmark a firm relying on two dedicated resources the value of flexibility is most significant if the demand levels are highly variable and negatively correlated in such cases the firm benefits from demand variability due to responsive pricing while facing limited demand risk due to resource flexibility finally we endogenize the input price of the flexible resource by considering the pricing decision of the resource supplier

cooperation in service systems we consider a number of servers that may improve the efficiency of the system by pooling their service capacities to serve the union of the individual streams of customers this economies of scope phenomenon is due to the reduction in the steady state mean total number of customers in the system the question we pose is how the servers should split among themselves the cost of the pooled system when the individual incoming streams of customers form poisson processes and individual service times are exponential we define a transferable utility cooperative game in which the cost of a coalition is the mean number of customers or jobs in the pooled system we show that despite the characteristic function is neither monotone nor concave the game and its subgames possess nonempty cores in other words for any subset of servers there exist cost sharing allocations under which no partial subset can take advantage by breaking away and forming a separate coalition we give an explicit expression for all infinitely many nonnegative core cost allocations of this game finally we show that except for the case where all individual servers have the same cost there exist infinitely many core allocations with negative entries and we show how to construct a convex subset of the core where at least one server is being paid to join the grand coalition

financing flexibility the case of outsourcing abstract we investigate the relationship between the extent and timing of vertical flexibility and the financial choices of a firm by vertical flexibility we mean partial total and reversible outsourcing of a necessary input a firm simultaneously selects the vertical setting and the financial sources of investment in flexibility in particular debt and venture capital a loan may come from a lender that requires the payment of a fixed coupon over time and an option to buy out the firm in certain circumstances debt leads to the same level of flexibility of an unlevered firm yet investment occurs earlier the injection of venture capital reduces the quest for vertical flexibility and speeds up investment then there arises a fresh substitutability between a financial venture capital and a real variable vertical flexibility

in pursuit of energy justice abstract energy justice provides a framework to perceive disparities in our energy system the foundation of energy justice draws heavily from the environmental justice movement grounded in larger issues of representation economic relations between the state firms and social groups this article draws from the environmental justice movement to explore concepts of universal and particular justice universal energy justice holds to values stemming from judicial and philosophical groundings based in procedural distributional and cosmopolitan justice issues particular energy justice relies on recognition justice of cultural and environmental factors influencing choices around energy technologies and policy preferences for the distribution of energy services empirically this article examines tensions within the energy system in the european union it does this in two areas first by examining how universal energy justice is spread through national regulatory authorities nras dealing with energy second particular energy justice is exemplified by a political solution to energy poverty in bulgaria rather than a regulatory response this contrasts with a western european approach the aim of the article is to show the pursuit of energy justice attempts to resolve tensions between groups and differing politics to both access and provide energy services

inventory centralization games with price dependent demand and quantity discount consider a distribution system consisting of a set of retailers facing a single period price dependent demand of a single product by taking advantage of the risk pooling effect and the quantity volume discount provided by suppliers or third party carriers the retailers may place joint orders and keep inventory at central warehouses before demand realization and allocate inventory among themselves after demand realization to reduce their operating costs under rather general assumptions we prove that there is a stable allocation of profits among the retailers in the sense that the resulting inventory centralization game has a nonempty core we also show how to compute an allocation in the core

horizontal mergers and collusive behavior abstract in the industrial organization literature it is generally felt that mergers hurt consumers not only because of the increased industrial concentration they effect but also because collusion becomes more likely in this paper we show that at least in one important case this intuition is misguided if a tacitly collusive agreement enforced by trigger strategies is not initially sustainable mergers will tend to reduce the chance that it becomes sustainable in the future this is so because the threat point implicit in the agreement becomes more favorable for outsiders

firm behaviour under the threat of liquidation abstract we study the optimal behaviour of a firm whose cash flow is determined by a diffusion process facing liquidation if internal cash balances fall below some threshold there is a conflict between the desire to pay dividends to satisfy shareholders and the need to retain cash as a barrier against possible liquidation stochastic optimal control characterises the value function and gives optimal decision rules for the firm the firm has a precautionary motive for retaining earnings the internal cost of funds and local risk aversion are both decreasing functions of cash held and in natural extensions to our model output and investment are both increasing functions of cash balances

the cost allocation problem for the first order interaction joint replenishment model we consider an infinite horizon deterministic joint replenishment problem with first order interaction under this model the setup transportation reorder cost associated with a group of retailers placing an order at the same time equals some group independent major setup cost plus retailer dependent minor setup costs in addition each retailer is associated with a retailer dependent holding cost rate the structure of optimal replenishment policies is not known thus research has focused on optimal power of two pot policies following this convention we consider the cost allocation problem of an optimal pot policy among the various retailers for this sake we define a characteristic function that assigns to any subset of retailers the average time total cost of an optimal pot policy for replenishing the retailers in the subset under the assumption that these are the only existing retailers we show that the resulting transferable utility cooperative game with this characteristic function is concave in particular it is a totally balanced game namely this game and any of its subgames have nonempty core sets finally we give an example for a core allocation and prove that there are infinitely many core allocations

a three stage model for a decentralized distribution system of retailers we present and study a three stage model of a decentralized distribution system consisting ofn retailers each of whom faces a stochastic demand for an identical product in the first stage before the demand is realized each retailer independently orders her initial inventory in the second stage after the demand is realized each retailer decides how much of her residual supply demand she wants to share with the other retailers in the third stage residual inventories are transshipped to meet residual demands and an additional profit is allocated our model is an extension of the two stage model of anupindi et al abz 2001 which implicitly assumes that all residuals enter the transshipment stage we show however that allocation rules in the third stage based on dual solutions which were used in the abz model may induce the retailers to hold back some of their residual supply demand in general we study the effect of implementing various allocations rules in the third stage on the values of the residual supply demand the retailers are willing to share with others in the second stage and the trade off involved in achieving an optimal solution for the corresponding centralized system

capacity allocation and scheduling in supply chains we consider a multiple product supply chain where a manufacturer receives orders from several distributors if the orders cannot all be met from available production capacity then the manufacturer allocates that capacity and a set of resubmittable orders among the distributors the distributors may share their allocated capacity among themselves before submitting revised orders finally the manufacturer schedules the revised orders to minimize its cost we consider three practical coordination issues first we estimate the benefit to the manufacturer from considering scheduling costs and constraints in making capacity and order allocation decisions second we estimate the additional profit that the distributors achieve when they share their allocated capacity third we estimate the value of coordination between the manufacturer and the distributors our work is among the first to consider all three issues simultaneously we model scheduling costs and constraints within the manufacturer s capacity allocation problem we model the distributors capacity sharing problem as a cooperative game that has properties that are unique within cooperative game theory finally we develop optimal algorithms for all the models defined by the three coordination issues our exact evaluation of decisions about the appropriate coordination level improves managers ability to make those decisions

relationships among three assumptions in revenue management this note discusses the relationships among three assumptions that appear frequently in the pricing revenue management literature these assumptions are mostly needed for analytical tractability and they have the common property of ensuring a well behaved revenue function the three assumptions are decreasing marginal revenue with respect to demand decreasing marginal revenue with respect to price and increasing price elasticity of demand we provide proofs and examples to show that none of these conditions implies any other however they can be ordered from strongest to weakest over restricted regions and the ordering depends upon the region

quantifying the severity of fuel poverty its relationship with poor housing and reasons for non investment in energy saving measures in ireland fuel poverty has generally been calculated by quantifying the number of households spending in excess of 10 of income on home heating this definition has a number of significant practical and scientific limitations this paper employs self reported data to calculate the severity of fuel poverty in ireland to identify chronic fuel poor households from occasional sufferers it also assesses domestic energy efficiency levels ireland is a useful case study as it demonstrates the highest variations in seasonal mortality and morbidity in northern europe both of which are associated with fuel poverty ireland is also experiencing extreme difficulties meeting its environmental emissions targets in light of recent spectacular economic growth reducing fuel poverty would lower energy related emissions assisting policy makers achieve these challenging targets furthermore little empirical research has been undertaken on fuel poverty in ireland this paper identifies key social groups at risk by conducting detailed socio economic and socio demographic analyses the relationship between fuel poverty and adverse housing conditions damp condensation is also examined moreover the reasons behind householders not investing in energy saving measures are reported the results show that ireland suffers from similar levels of fuel poverty as the uk with low income households suffering the greatest the key policy implications are outlined

multiplayer allocations in the presence of diminishing marginal contributions cooperative game analysis and applications in management science we use cooperative game theory to investigate multiplayer allocation problems under the almost diminishing marginal contributions admc property this property indicates that a player s marginal c

united we stand or divided we stand strategic supplier alliances under order default risk we study the alliance formation strategy among suppliers in a framework with one downstream firm and n upstream suppliers each supplier faces an exogenous random shock that may result in an order default each of them also has access to a recourse fund that can mitigate this risk the suppliers can share the fund resources within an alliance but they need to equitably allocate the profits of the alliance among the partners in this context suppliers need to decide whether to join larger alliances that have better chances of order fulfillment or smaller ones that may grant them higher profit allocations we first analytically characterize the exact coalition proof nash stable coalition structures that would arise for symmetric complementary or substitutable suppliers our analysis reveals that it is the appeal of default risk mitigation rather than competition reduction that motivates cooperation in general a riskier and or less fragmented supply base favors larger alliances whereas substitutable s

measuring market power in the ready to eat cereal industry the ready to eat cereal industry is characterized by high concentration high price cost margins large advertising to sales ratios and numerous introductions of new products previous researchers have concluded that the ready to eat cereal industry is a classic example of an industry with nearly collusive pricing behavior and intense nonprice competition this paper empirically examines this conclusion in particular i estimate price cost margins but more importantly i am able empirically to separate these margins into three sources i that which is due to product differentiation ii that which is due to multi product firm pricing and iii that due to potential price collusion the results suggest that given the demand for different brands of cereal the first two effects explain most of the observed price cost margins i conclude that prices in the industry are consistent with noncollusive pricing behavior despite the high price cost margins leading firms are able to maintain a portfolio of differentiated products and influence the perceived product quality it is these two factors that lead to high price cost margins

quantifying the prevalence of fuel poverty across the european union abstract the literature and policy base for fuel poverty in the uk and ireland is well established and there is a growing body of single country studies beyond these two eu member states for example brunner et al 2012 dubois 2012 robine et al 2008 however on a european level the last analysis of fuel poverty was conducted in 2004 prior to the enlargement of the eu using survey data this paper presents an updated overview of the prevalence of european fuel poverty in the context of the accession of numerous former social states and rising fuel prices analysis reveals the phenomenon of fuel poverty is occurring across the eu with particularly high levels of fuel poverty found in eastern and southern european states it is argued that there are both eu and national policy frameworks in place that address climate change and these could be used as a starting point for countries to address fuel poverty through improved domestic energy efficiency measures this paper reflects research undertaken in 2011 supported by eaga charitable trust within the umbrella of work examining issues of poverty and social exclusion across the eu which has enabled access to the eu silc dataset

large scale service marketplaces the role of the moderating firm recently large scale web based service marketplaces where many small service providers compete among themselves in catering to customers with diverse needs have emerged customers who frequent these marketplaces seek quick resolutions and thus are usually willing to trade prices with waiting times the main goal of this paper is to discuss the role of the moderating firm in facilitating information gathering operational efficiency and communication among agents in service marketplaces surprisingly we show that operational efficiency may be detrimental to the overall efficiency of the marketplace furthermore we establish that to reap the expected gains of operational efficiency the moderating firm may need to complement the operational efficiency by enabling communication among its agents the study emphasizes the scale of such marketplaces and the impact it has on the outcomes this paper was accepted by yossi aviv operations management

externalities tangible externalities and queue disciplines externalities are the marginal costs that a user of a common resource imposes on others we introduce the efficient measure of tangible externalities that are the costs that a user imposes on others while being served then for a single server queueing system under various service disciplines we compute the expected externalities and the expected tangible externalities conditioning on the length of the service requirement

review of renewable energy investment and financing in china status mode issues and countermeasures abstract with the support of national policies china s renewable energy generation industry has experienced a rapid development period and entered the world forefront level especially in the aspects of installed capacity and speed of newly installed capacity however with the rapid development of renewable energy the power generation industry is facing more and more challenges particularly in investment and financing as for wind power industry there are also some problems such as single financing channels blindness of projects investment and so on which will result in financing difficulties for some advanced projects in addition the problems for the investment of photovoltaic pv power generation leads to vicious competition and a tumble in international market thus the overcapacity of china s entire pv industry emerges generally speaking the renewable energy industry is facing a seemingly contradictory predicament of funding deficiencies and blind investment which is derived from the government centered renewable energy investment and financing this government centered mode has promoted the development of renewable energy industry in the early stage but it cannot be adapted to the requirements of sustainable development in view of these the problems of renewable energy investment and financing are deeply studied in this paper this paper proceeds as follows firstly the overview of the development of china s renewable energy industry is briefly introduced secondly the status quo of china s renewable energy investment and financing is explored in detail based on overview of the following five perspectives investment situation investment and financing bodies investment and financing means sources of funding and financing channels secondly the patterns and characteristics of renewable energy financing are summarized and a comparative analysis of wind power and photovoltaic power generation financing means is carried out finally renewable energy investment and financing issues are discussed and further feasible proposals are put forward in all this paper is of great significance in the sustainable and healthy development of china s renewable energy

on the cooperation of recycling operations abstract this paper addresses two important issues that may affect the operations efficiency in the recycling industry first the industry contains many small scale and inefficient recycling firms especially in developing countries second the output from recycling a waste product often yields multiple recycled products that cannot all be sold efficiently by a single firm to address these two issues this paper examines how different firms can cooperate in their recycling and pricing decisions using cooperative game theory recycling operations under both joint and individual productions with different cost structures are considered decisions include the quantity of waste product to recycle and the price at which to sell each recycled product on each firm s market these decisions can be made jointly by multiple cooperating firms to maximize total profit we design allocation schemes for maximized total profit to encourage cooperation among all firms managerial insights are provided from both environmental and economic perspectives

assessing the extent and intensity of energy poverty using multidimensional energy poverty index empirical evidence from households in india abstract in this paper we have made a comprehensive assessment of the extent and various socio economic implications of energy poverty in india amartya sens s capability approach to development underpins the analysis of household level data taken from the india human development survey ii ihds ii 2011 12 using the multidimensional energy poverty index mepi the overall results show that energy poverty is widespread in india and the existence of energy poverty also coincides with the other forms of deprivations such as income poverty and social backwardness for example dalits lower caste and adivasis tribal are found to be extremely energy poor compared to the other social groups in india the results also reveal that it is the responsibility of women to manage the domestic chores such as collection of firewood and making of dung cake in traditional indian households inefficient use of such biomass fuels is found to cause health hazards

managing flexible capacity in a make to order environment flexible capacity has been shown to be very effective to hedge against forecast errors at the investment stage in a make to order environment this flexibility can also be used to hedge against variability in customer orders in the short term for that purpose production levels must be adjusted each period to match current demands to give priority to the higher margin product or to satisfy the closest customer however this will result in swings in production inducing larger order variability at upstream suppliers and significantly higher component inventory levels at the manufacturer through a stylized two plant two product capacitated manufacturing setting we show that the performance of the system depends heavily on the allocation mechanism used to assign products to the available capacity although managers would be inclined to give priority to higher margin products or to satisfy customers from their closest production site these practices lead to greater swings in production result in higher operational costs and may reduce profits

on the power of indicators how the choice of fuel poverty indicator affects the identification of the target population in light of the creation of the eu energy poverty observatory epov in january 2018 and the increase in debates on how fuel poverty is measured we propose a critical analysis of fuel poverty indi

coalition formation as a dynamic process abstract we study coalition formation as an ongoing dynamic process with payoffs generated as coalitions form disintegrate or regroup a process of coalition formation pcf is an equilibrium if a coalitional move to some other state can be justified by the expectation of higher future value compared to inaction this future value in turn is endogenous it depends on coalitional movements at each node we study existence of equilibrium pcfs we connect deterministic equilibrium pcfs with unique absorbing state to the core and equilibrium pcfs with multiple absorbing states to the largest consistent set in addition we study cyclical as well as stochastic equilibrium pcfs

an economic production quantity model for deteriorating items with multiple production setups and rework abstract rework is one of the main issues in reverse logistic and green supply chain since it can reduce production cost and environmental problem many researchers focus on developing rework model but few of them developed model for deteriorating items in this paper we develop an economic production quantity epq model for deteriorating items with rework in one cycle production facility can produce items in m production setups and one rework setup m 1 policy an example and sensitivity analysis is shown to illustrate the model the results show that the deteriorating rate affects the optimal cost per unit time but the effect is not significant the parameters that significantly affect the optimal total cost per unit time are the serviceable holding cost the production setup cost and the demand rate

robust optimal policies of production and inventory with uncertain returns and demand abstract we consider an inventory and production planning problem with uncertain demand and returns in which the product return process is integrated into the manufacturing process over a finite planning horizon we first propose an inventory control model for the return and remanufacturing processes with consideration of the uncertainty of the demand and returns then a robust optimization approach is applied to deal with the uncertainty of the problem through formulating a robust linear programming model moreover properties on the robust optimization model are studied and an equivalent robust optimization model based on duality theory is obtained which allows the solutions to be derived more efficiently finally we provide a set of numerical examples to verify the effectiveness of the approach and analyze the effects of the key parameters on the solutions

coordinating supply chains with competition capacity allocation in semiconductor manufacturing abstract this paper motivated by the experiences of a major us based semiconductor manufacturer presents an integrated model of incentive problems arising in forecasting and capacity allocation our model involves multiple product managers and multiple manufacturing managers who forecast the means of their respective demand and capacity distributions a central coordinator is responsible for allocating capacities to product lines when these distributions are unknown to the central coordinator and capacity is scarce the managers misrepresent their forecasts a product manager inflates his forecast to gain a greater allocation of the capacity a manufacturing manager deflates his forecast to cover for the uncertainties in production we propose a game theoretic model and design a mechanism a bonus scheme for all managers and an allocation rule to allocate realized capacity to the product managers that elicits truthful reporting by all managers the results herein show that the structure of the truth eliciting bonus schemes is rather simple with easily calculable parameters we also show that large classes of allocation rules including the current allocation practice of the firm are manipulable a bonus is often required for elicitation of truthful information we synthesize the implications of our results for the practitioners

ethnic diversity energy poverty and the mediating role of trust evidence from household panel data for australia abstract energy poverty is now a major concern on the public policy agenda in many countries however evidence on the determinants of energy poverty is relatively scant our study contributes to the debate on the determinants of energy poverty by being the first to examine the impact of ethnic diversity on household energy poverty using 12 waves of longitudinal data from the household income and labour dynamics in australia hilda survey we find that in australia ethnic diversity is positively associated with energy poverty our preferred instrumented estimates suggest that a standard deviation increase in ethnic diversity is associated with a 0 103 0 422 standard deviation increase in energy poverty depending on how energy poverty is measured this finding is generally robust to alternative ways of measuring ethnic diversity and energy poverty we identify trust as an important channel through which ethnic diversity operates and point to the need for policies that engender social capital in multicultural societies as a means to harness the benefits of diversity

cooperation between multiple news vendors with transshipments we study a situation with n retailers each of them facing a news vendor problem i e selling to customers over a finite period of time product with a short life cycle such as fashion groups of retailers might improve their expected joint profit by coordinating their orders followed by transshipments after demand realization is known we analyze these situations by defining a cooperative game called a general news vendor game for such a situation with n retailers we concentrate on whether it makes sense to cooperate by studying properties of general news vendor games our main result states that general news vendor games have non empty cores

the effects of external financing costs on investment timing and sizing decisions abstract we develop a dynamic model in which a firm exercises an option to expand production on either a small or large scale with cash reserves and costly external funds an intermediate level of cash reserves which is insufficient for the large scale investment but sufficient for the small scale investment provides an incentive for the firm to invest early in the small scale project these results fill the gap between two types of results i empirical findings of a u shaped relation between the investment volume and internal funds and ii empirical predictions of a u shaped relation between the investment timing and internal funds in addition our results have real world implications for investment in alternative projects

an industry equilibrium analysis of downstream vertical integration this paper investigates the effect of product substitutability on nash equilibrium distribution structures in a duopoly where each manufacturer distributes its goods through a single exclusive retailer which may be either a franchised outlet or a factory store static linear demand and cost functions are assumed and a number of rules about players expectations of competitors behavior are examined it is found that for most specifications product substitutability does influence the equilibrium distribution structure for low degrees of substitutability each manufacturer will distribute its product through a company store for more highly competitive goods manufacturers will be more likely to use a decentralized distribution system this article was originally published in marketing science volume 2 issue 2 pages 161 191 in 1983

from targeting to implementation the role of identification of fuel poor households this paper proposes to evaluate the efficiency of fuel poverty policies by looking at them as a three step process these steps are policy targeting identification of households and implementation of measures each of these steps are costly and can face feasibility problems this is particularly true in the case of fuel poverty policies because of the multidimensional aspect of fuel poverty therefore public policies in that field are necessarily imperfect and this should be taken into account in the analysis of policies this three step framework is applied to the french fuel poverty policy which has been developed in 2010 as its practical modalities of implementation are still under discussion we mainly discuss the choices made in terms of targeting and highlight the role of identification of fuel poor households as a key factor for the success of that policy the general idea behind this discussion is that the efficiency of such policies has to be viewed in a comprehensive way which includes the three policy steps

the u shaped investment curve theory and evidence we analyze how the availability of internal funds affects a firm s investment we show that under fairly standard assumptions the relation is u shaped investment increases monotonically with internal funds if they are large but decreases if they are very low we discuss the tradeoff that generates the u shape and argue that models predicting an always increasing relation are based on restrictive assumptions using a large data set we find strong empirical support for our predictions our results qualify conventional wisdom about the effects of financial constraints on investment behavior and help to explain seemingly conflicting findings in the empirical literature

capacity allocation using past sales when to turn and earn consider a supplier selling to multiple retailers demand varies across periods but the supplier s capacity and wholesale price are fixed if demand is high the retailers needs exceed capacity and the supplier must implement an allocation mechanism to dole out production we examine how the choice of mechanism impacts retailer actions and supply chain performance in particular we analyze turn and earn allocation a method commonly used in the automobile industry this scheme bases current allocations on past sales and thus enables retailers to influence their future allocations they compete for scarce capacity even if they do not compete for customers we show that turn and earn induces the retailers to increase their sales when demand is low and the supplier s capacity is otherwise underutilized supplier profits thus increase the impact on the supply chain depends on how restrictive capacity is with mildly tight capacity the retailers higher sales rate does not significantly lower their profits but does reduce the cost of idle capacity supply chain performance improves with extremely tight capacity the retailers intense competition dissipates more profits than the supplier gains and supply chain performance suffers consequently turn and earn does not generally coordinate the system it is best characterized as a means for the supplier to increase her profits at the expense of the retailers and potentially even the supply chain furthermore these results hold even if the retailers can hold inventory in anticipation of scarce capacity

production inventory games a new class of totally balanced combinatorial optimization games in this paper we introduce a new class of cooperative games that arise from production inventory problems several agents have to cover their demand over a finite time horizon and shortages are allowed each agent has its own unit production inventory holding and backlogging cost cooperation among agents is given by sharing production processes and warehouse facilities agents in a coalition produce with the cheapest production cost and store with the cheapest inventory cost we prove that the resulting cooperative game is totally balanced and the owen set reduces to a singleton the owen point based on this type of allocation we find a population monotonic allocation scheme for this class of games finally we point out the relationship of the owen point with other well known allocation rules such as the nucleolus and the shapley value

stable farsighted coalitions in competitive markets in this paper we study dynamic alliance formation among agents in competitive markets we look at n agents selling substitutable products competing in a market in this setting we examine models with deterministic and stochastic demand and we use a two stage approach in stage 1 agents form alliances coalitions and in stage 2 coalitions make decisions price and inventory and compete against one another to analyze the stability of coalition structures in stage 1 we use two notions from cooperative games the largest consistent set lcs and the equilibrium process of coalition formation epcf which allow players to be farsighted thus in forming alliances players consider two key phenomena first players trade off the size of the total profit of the system versus their allocation of this total pie and second they weigh the possibility that an immediate beneficial defection can trigger further counter defections that in the end may prove to be worse than the status quo in particular one such example is that of the grand coalition which we show to be stable in the farsighted sense even though players benefit myopically by defecting from it we also provide conditions under which a situation of a few lone players competing against a large coalition is stable we examine the impact of the size of the market n the degree of competition the effect of cost parameters and the variability of the demand process on the prices inventory levels and structure of the market we discuss the possible strategic implications of our results to firms in a competitive market and for new entrants

energy justice at the end of the wire enacting community energy and equity in wales energy justice has emerged as a useful lens for understanding and guiding energy decision making however whilst calls for greater energy justice have grown fleeting attention has been paid to the role and agency of the very people at the heart of this agenda clearly given the increasing prevalence of local energy initiatives such projects warrant more sustained focus both to explore how energy justice is constructed between settings and to prompt greater consideration of its associated outcomes this paper seeks to address this gap by using energy justice to assess local ownership of small scale energy generation through a study of the community energy sector in wales in so doing it aids greater understanding of the energy equity dimension understood in terms of accessibility and affordability of the energy trilemma from a conceptual standpoint the research examines how energy justice is negotiated and contested at community scale through a focus on issues of distributive and procedural justice from a policy standpoint the research shows that community energy is often involved in a wide range of local objectives and directs attention to how best to support such initiatives to further stimulate local action and deliver more widespread equity gains

shipment consolidation who pays for it and how much this paper examines the subject of cost allocation in a multiple product inventory system allowing for consolidation of shipments if we order multiple items using an economic order quantity eoq policy and consolidate shipments part of the ordering cost is shared and part is specific to each item we want to find the consolidation choice with optimal total cost and divide the cost fairly among the individual items such a fair division is central to a costing system in which no group of items subsidizes the others there are no free riders we use a cooperative inventory game to determine when this can be done this game is usually not concave so we want to know what consolidation combinations determine when this cost can be fairly divided using the core of the game we prove that consolidation of all the items is cheaper exactly if there are fair cost allocations core of the game is not empty which happens when the portion of the ordering cost common to all items is not too small we further show how sensitive the nonempty core result is to adjustments in the cost parameters and show how to determine a threshold value for the shared ordering cost which assures the existence of a fair cost allocation

formation of a coalition proof stable cartel formation of coalitions in oligopolies is modeled as a noncooperative game in which firms strategies have a binary form to cooperate or not the author demonstrates a one to one correspondence between stable cartels defined by c d aspremont et al 1983 and the nash equilibria of this game using a coalition proof nash equilibrium they define the concept of a coalition proof stable cartel and prove that there is a unique equilibrium

dynamic investment and capital structure under manager shareholder conflict abstract this paper investigates the interactions between the investment and financing decisions of a firm under manager shareholder conflicts arising from asymmetric information in particular we extend the manager shareholder conflict problem in a real options model by incorporating debt financing we show that manager shareholder conflicts over investment policy increase not only the investment and default triggers but also coupon payments which lead to a decrease in the equity value moreover given the presence of manager shareholder conflicts debt financing increases investment and decreases total social welfare as a result there is a trade off between the efficiency of investment and total social welfare with debt financing these results fit well with the findings of previous empirical work in this area

an eoq model with price dependent supply and demand abstract this paper considers a generalization of the economic order quantity eoq model for an end item that requires an input component for production the quantity of input components available for production is a nondecreasing function of the price offered by the producer to its suppliers while the end item demand is also price dependent we analyze the behavior of the optimal replenishment and pricing policy which depends on the economics of production and procurement costs and the prices associated with input components and end items this analysis sheds light on how to deal with price dependent supply in production planning as well as on the value of supplier heterogeneity and information on the relationship between component price and supply

formation of alliances in internet based supply exchanges in different industries such as automobiles chemicals or retailing competitors are joining forces in establishing electronic marketplaces to reduce inefficiencies in the purchasing process and cut costs by combining their buying power joining such an alliance leads to reduced costs including those of possible rivals because members share the development and operating costs a company that joins an alliance agrees to share its suppliers with others which may lead to more intense competition among the increased number of suppliers and it may further benefit an alliance member at the expense of companies left outside the alliance natural questions that could arise then are when would a firm prefer to take part in an electronic marketplace joint venture when would it prefer that other firms possibly rivals join the venture and what are the financial consequences of either joining an alliance or remaining independent in an attempt to gain a better understanding of the issues we have developed a model of three retailers whose products may have a certain degree of substitutability we provide some conditions in terms of product substitutability and compatibility of retailers that would lead to the formation of a three member alliance or a two member alliance or no alliance at all we also study the effect of alliance structure and compatibility of retailers on the profit of a company

vertical integration with endogenous contract leadership stability and fair profit allocation abstract this paper studies vertical integration in serial supply chains with a wholesale price contract we consider a business environment where the contracting leader may be endogenously changed before and after forming the integration a cooperative game is formulated to normatively analyze the stable and fair profit allocations under the grand coalition in such an environment our main result demonstrates that vertical integration is stable when all members are pessimistic in the sense that they are sure that they will not become the contracting leader if they deviate from the grand coalition we find that in this case the grand coalition s profit must be allocated more to the retailer and the members with higher costs nevertheless we also show the conditions under which the upstream manufacturer can have strong power as in traditional supply chains

the policy implications of energy poverty indicators abstract the methodologies and indicators that have been proposed in the literature to measure energy poverty are quite diverse some are subjective approaches based on personal or third parties perceptions of affordable warmth at home whereas others calculate objective indicators although these different proposals have already been theoretically compared an empirical comparative analysis that measures in a real case study the practical impact of the theoretical limitations detected for the different indicators was still pending the goal of this paper is thus to contribute to this debate by comparing critically the different approaches used to measure energy poverty in a real case spain in 2015 and to propose a new methodology that might be able to overcome some of the major problems that affect current methods

a generalized ordering and recovery policy for reusable items this paper deals with a joint eoq and epq model in which a stationary demand is satisfied by recovered products as well as newly purchased products it is assumed that a fixed proportion of the used products are collected from customers and later recovered for reuse we generalize the p r policy in the literature by treating the sequence of orders for newly purchasing products and setups for recovery process within a cycle as a decision variable through example problems we illustrate the validity of the model and solution procedure developed

a characterization of the shapley value in queueing problems a set of agents stand to receive a service no two agents can be served simultaneously a queue has been organized and agents having to wait should receive monetary compensations we characterize the rule assigning positions in the queue and compensations corresponding to the payoffs recommended by the shapley value of the associated cooperative game

choosing among alternative discrete investment projects under uncertainty abstract irreversible choice among mutually exclusive projects under output price uncertainty is considered increasing returns are shown to make it optimal to wait for the largest project greater uncertainty of the price process makes it optimal to wait for a larger project

fuel poverty potential risk index in the context of climate change in chile abstract public housing policies face a challenge in order to meet not only the right to housing but also an affordable and comfortable use for them in this context most of the studies related to fuel poverty are based on a diagnosis of existing conditions but there is a lack of information focusing on how to predict the risk of fuel poverty in future dwellings considering a context of climate change this research develops an index to assist policymakers in the decision making process during the early stages of social housing allocation the analysis is based on the applicability of adaptive comfort the influence of climate change the urban context and the building features energy use patterns and the ability to pay utility bills have been also considered for social housing in the central south of chile after that several future scenarios are discussed considering the probable income and energy inflation rates the potential risk variables that influence the early stages of design are also discussed the results reveal that the fuel poverty potential risk index is an effective tool to select appropriate housing for the most disadvantaged and vulnerable segments of society considering the future climate income and energy price trends

effects of discounting and demand rate variability on the eoq the economic order quantity eoq formula is probably the most well known formula in inventory theory it determines the optimal value of the ordering quantity by minimizing the average cost in an ordering cycle it is based on the assumptions that there is a fixed lead time and a constant demand rate these assumptions are usually not fulfilled in practice especially when dealing with slow moving items demand seems to fluctuate furthermore since the time between two successive orderings is often large for slow moving items discounted costs instead of average costs should be minimized in this paper we determine the optimal ordering quantity if demand is modelled by a poisson process and the expected discounted costs are minimized we also analyze the case where demand is uniform and or the average cost criterion is used we give graphical presentations of the optimal ordering quantities besides easily determining the optimal values these allow us to show what the effects of changing the objective function and of changing the demand distribution are we derive a simple discounted cost ordering quantity formula denoted by eoq d for slow moving items we show that for items with a small demand rate and high fixed ordering costs the eoq d is much closer to the optimal discounted cost ordering quantity than the traditional eoq formula c 1998 elsevier science b v all rights reserved

experiencing fuel poverty coping strategies of low income households in vienna austria abstract until the present day research on fuel poverty focussing on the point of view of those concerned is few and far between the present paper aims at filling this gap analysing experiences with and behavioural responses to fuel poverty it examines the day to day energy situation of households which are poor at risk of poverty and or suffering from fuel poverty in a case study conducted in the austrian capital vienna qualitative interviews provide the data for investigating the relevant factors in causing fuel poverty among those bad housing conditions outdated appliances financial problems and provide a basis for discussion about the respective behavioural strategies of the people concerned the results show that the ways of handling this problematic situation vary greatly and that people follow different strategies when it comes to inventing solutions for coping with the restrictions and finding ways of satisfying at least a part of their basic energy needs nonetheless it also clearly surfaces that the scope of action is limited in many cases which in turn only supports the claim that changes in the overall conditions are essential

inventory games with permissible delay in payments abstract meca et al 2004 studied a class of inventory games which arise when a group of retailers who observe demand for a common item decide to cooperate and make joint orders with the eoq policy in this paper we extend their model to the situation where retailer s delay in payments is permitted by the supplier we introduce the corresponding inventory game with permissible delay in payments and prove that its core is nonempty then a core allocation rule is proposed which can be reached through population monotonic allocation scheme under this allocation rule the grand coalition is shown to be stable from a farsighted point of view

fuel poverty as injustice integrating distribution recognition and procedure in the struggle for affordable warmth bringing attention to fuel poverty as a distinct manifestation of social inequality has asserted the place of affordable warmth in the profile of contemporary rights and entitlements as such fuel poverty can be understood as an expression of injustice involving the compromised ability to access energy services and thereby to secure a healthful living environment in this paper we consider how fuel poverty may be aligned to various alternative concepts of social and environmental justice whilst recognising that fuel poverty is fundamentally a complex problem of distributive injustice we argue that other understandings of injustice are also implicated and play important roles in producing and sustaining inequalities in access to affordable warmth addressing fuel poverty has to involve seeking justice in terms of the cultural and political recognition of vulnerable and marginalised social groups and pursuing procedural justice through opening up involvement and influence in decision making processes we make this argument both in theoretical terms and through considering the experience of fuel poverty advocacy and policy development in the uk opportunities for future action may be illuminated through such interconnected justice framings as wider awareness of energy climate and poverty issues emerge

an economic production and remanufacturing model with learning effects abstract managing inventory in reverse logistics has been receiving much attention in recent years one inventory problem that has been of interest to researchers is the production and remanufacturing model where used items are collected and remanufactured to satisfy customer demand the available models in the literature do not discuss the learning effects in production and remanufacturing processes this may not be true in industries where labour costs and learning costs are expensive by modelling these learning effects management may use established learning models to better utilize capacity manage inventories and coordinate production and distribution throughout the chain this paper extends the production remanufacture and waste disposal model by assuming learning to occur in both production and remanufacturing processes however this paper also assumes that improvements due to learning require capital investment mathematical models are developed numerical examples are provided and results are discussed

meta analysis of empirical evidence on energy poverty the case of developing economies abstract energy poverty has evolved as an important issue of research from academic and policy perspectives during the last two decades the energy poverty estimates exhibit widespread variations across regions methodologies and datasets making the task of energy and development policies challenging the variations in energy poverty estimates necessitate a systematic and rigorous analysis of these empirical studies to obtain a true measure of energy poverty the present study conducts a meta analysis of 30 studies and 103 estimates of energy poverty on average 71 1 percent of the population in the overall sample studies has been identified as energy poor high i square statistic values suggest heterogeneity bias in the sample studies therefore analysis at the subgroup level has been conducted meta regression analysis of overall sample and subgroups has identified type of methodology citations impact factor of the journal regional dummies average key crude oil price and gross domestic product as significant factors that explain heterogeneity in the energy poverty effect sizes we recommend inclusion of local and regional factors in assessment of energy poverty for developing a uniform methodology to assess energy poverty across developing economies

measuring energy poverty focusing on what matters abstract the provision of modern energy services is recognised as a critical foundation for sustainable development and is central to the everyday lives of people effective policies to dramatically expand modern energy access need to be grounded in a robust information base metrics that can be used for comparative purposes and to track progress towards targets therefore represent an essential support tool this paper reviews the relevant literature and discusses the adequacy and applicability of existing instruments to measure energy poverty drawing on those insights it proposes a new composite index to measure energy poverty both the associated methodology and initial results for several african countries are discussed whereas most existing indicators and composite indices focus on assessing the access to energy or the degree of development related to energy our new index the multidimensional energy poverty index mepi focuses on the deprivation of access to modern energy services it captures both the incidence and intensity of energy poverty and provides a new tool to support policy making

energy planning and its relationship to energy poverty in decision making a first approach for the canary islands abstract after reviewing the energy policies in the canary islands this study addresses the concept of energy poverty from a different perspective than that usually found in the academic literature this analysis advances knowledge of the role played by the following six pillars sustainability renewable energies energy efficiency self consumption regimes electrification of energy demand and electrical interconnections regarding energy poverty in these isolated environments the relationship of these pillars with energy poverty is analysed in terms of energy scenarios projected for 2030 the results show that the interrelations between these six elements are a good indicator of the evolution of energy poverty they also provide a roadmap for energy policy in these regions this research highlights the importance of promoting energy policies that are not based on short term results and that energy strategy does not necessarily require planning more tasks in a shorter time intending to asses policies suitable for implementation in the medium and long term this study proposes alternative definitions to measure energy poverty by identifying the key pillars in energy planning for the canary islands

transshipment of inventories among retailers myopic vs farsighted stability the author considers a model of a decentralized distribution system consisting of n retailers selling an identical product retailers face a stochastic demand and must order their initial inventory before this demand is realized after demand realization retailers decide how much of their unsold inventory or unsatisfied demand they want to share with other retailers this is followed by a transshipment of leftover inventories and distribution of the additional profit generated through inventory sharing the author addresses the following issue suppose that the retailers distribute the profit from inventory sharing according to an allocation rule that induces retailers to share their residuals in a way that maximizes the additional profit such as the shapley value but may not belong to the core is it likely that in this framework all retailers will jointly share their residuals and not form subcoalitions previous research has looked at this problem from a myopic viewpoint and concluded that the grand coalition is not stable unlike the prior work the author looks at stability in a farsighted sense that is retailers do not consider only their immediate payoffs but are also concerned with reactions of other retailers to their actions in a symmetric setting with identical additional unit revenues from transshipments generated by all retailers farsighted retailers always maximize their allocations by not defecting from the grand coalition the author also provides conditions when the same is true for nonidentical additional unit revenues