tax adjusted discount rates this paper develops models for discount rates that are adjusted for the interest tax shields of an infra marginal firm in a general tax equilibrium where there is cross sectional variation in corporate tax rates under the assumption that the firm optimally maintains a predetermined debt ratio a tax adjusted riskless discount rate model is given for valuing certainty equivalents and a tax and risk adjusted discount rate model is given for valuing expected cash flows for the latter case the asset equity debt and tax shield betas are derived and a weighted average cost of capital interpretation is given the tax adjusted capm apt security market lines for expected returns in stock and bond markets both have the same slope but different intercepts a formula is also provided for the present value of the interest tax shield when the firm optimally maintains a predetermined debt level the analysis here also differs from the existing literature in the following respects it allows for cross sectional variation in corporate tax rates and personal tax rates it shows that the market values of risky and riskless interest tax shields differ only to the extent that tax laws provide for nonlinear taxation of gains and losses it also shows that interest tax shields should be discounted at a tax adjusted discount rate that reflects the fact that they accrue to equity investors rather than debt investors continuous time simplifications of the formulas in this paper and the previous literature are also given

risk assessment of virtual power plants offering in energy and reserve markets distributed energy resources ders can be integrated into a single entity namely virtual power plant vpp the integration enables them to participate in competitive wholesale electricity markets according to the different types of uncertainty faced by different ders this integration can also act as a risk hedging mechanism providing a surplus profit in this paper using a two stage stochastic programming approach risk averse optimal offering model for a vpp trading in a joint market of energy and spinning reserve service is presented the conditional value at risk cvar is used to control the risk of profit variability uncertainties involved in generation of renewables consumption of loads calls for reserve service as well as prices in the day ahead market the spinning reserve market rm and the balancing real time market bm are taken into consideration this paper assesses how total and surplus profits of vpp are affected by risk aversion participation in the rm and the pricing system in the bm for this purpose the role of the integration and the trends of energy and reserve transactions under both single and dual pricing systems in the bm are addressed in detail through a numerical study

marginal loss pricing for hours with transmission congestion nodal electricity prices are designed to send efficient economic signals to market participants for operating and investment decisions the inherent nonlinearity of transmission losses and the use of marginal loss pricing can obscure the intended economic information in the loss component of nodal prices as one step in clarifying the determination of the marginal loss price component this paper discusses the calculation of nodal electricity prices in lossy networks and presents a variety of accepted methods for determining marginal loss this paper then proposes a method for calculating the marginal loss component of nodal prices during hours with congestion that reflects each market participant s contribution to marginal losses more accurately than current implementations the proposed method recognizes that increases in incremental energy flows cannot flow across constrained lines and thus system wide marginal losses should not be attributed to generators or loads in the constrained subregions the objectives of the discussion are to improve the understanding of how marginal losses are determined and also to improve the accuracy of the information conveyed in the marginal loss price component the ultimate goal is to promote more efficient price signals to electricity market participants for both transmission loss and congestion

an iterative lmp calculation method considering loss distributions generally the locational marginal price lmp is obtained by solving a linear programming formulation network losses are considered through the preset loss factors based on historical operation information this usually brings errors in the calculated loss under different new scenarios further the congestion component of an lmp is dependent on the choice of the reference bus in this paper a new iterative lmp calculation method is proposed to overcome the aforementioned two drawbacks associated with the traditional lmp calculations at each iteration a linear programming problem for market clearing is solved first losses on branches are considered as fictitious nodal demands at their terminal buses secondly the ac power flow is calculated according to the dispatch results loss factors and fictitious nodal demands are then updated according to the ac power flow solution thus removing the need and dependence on presetting loss factors another important merit is that lmp and its congestion component obtained from the proposed iterative lmp calculation method are independent of choice of the reference bus the effectiveness of the proposed method is illustrated on two benchmark systems the importance of obtaining accurate losses and lmps is also demonstrated

towards a cost causation based tariff for distribution networks with dg this paper decomposes the effects of the transition from an average cost distribution tariff to a cost causation based distribution tariff in terms of time and location that uses nodal prices to recover losses and an extent of use method to recover fixed network costs based on use at coincident peak our decomposition is designed so that the effects of using coincident peak and location for fixed network charges as well as using marginal losses under constraints recovering the exact amount of losses and recovering exactly the cost of network service in total can be isolated and analyzed separately we apply our tariff transition and decomposition method to an example network with data from uruguay to isolate the various effects with and without a distributed generation dg resource we show moving to coincident peak charges and to fully charging for marginal losses while rebating the merchandising surplus through the fixed charges have the greatest effects on changes in distribution tariff charges dg provides countervailing cost changes to distribution tariffs for loads through loss reductions and the implicit creation of new network capacity for which it is paid the interaction of all these effects may lead to outcomes that are counter intuitive which further supports the need to decompose the tariff changes to fully understand the reasons for the direction and magnitude of changes in tariff charges in the transition to tariffs based more on cost causation

optimal security design how should new securities be designed traditional theories have little to say on this the literature on capital structure and general equilibrium theories with incomplete markets take the securities firms issue as exogenous this paper explicitly incorporates the transaction costs of issuing securities and develops a model where the instruments that are traded are chosen optimally and the economy s market structure is endogenous among other things it is shown that the firm s income stream should be split so that in every state all payoffs are allocated to the security held by the group that values them most this abstract was borrowed from another version of this item

the structure and incentive effects of corporate tax liabilities this paper describes situations in which tax liabilities assume the form of a negative position in a call option this structure motivates an examination of the investment decisions of taxed corporations in the presence of risk it is shown that the structure of the tax liability creates an incentive to underinvest in more risky projects and an incentive for conglomerate merger these effects are then evaluated in the presence of conflicts of interest between stockholders and bondholders and under alternative assumptions about the tax code and about the timing of investment and financing decisions this paper makes an observation regarding the functional form assumed by the tax liabilities of corporations with potentially redundant deductions and evaluates its consequences for investment incentives interest and other deductions against taxable income can be taken for the most part only to the extent of that income in a single period model this gives the net tax liability a familiar structure it can be viewed as a call option where the exercise price on the call is the allowable deductions the tax paying entity holds a positive position in the assets which generate the taxable income and a negative position in a call option on those assets the analogy between options and the structure of tax liabilities calls attention to some interesting incentive effects concerning risk using their model of option valuation black and scholes 5 showed that the value of an option is increasing in the variance of the asset it is written on other authors have generalized this result and studied its implications for corporate financing see jagannathan 16 jensen and meckling 17 and green 15 the importance of the risk attributes of the underlying asset in option valuation suggests that taxation may have important incentive consequences for investment decisions involving risk it has been recognized in the public economics literature for some time that asymmetries in the tax schedule can affect risk taking behavior early papers by mossin 20 and stiglitz 25 studied individual portfolio decisions over a riskless and a risky asset our analysis differs from these in a number of respects the most important of these is our use of market valuation rather than expected utility in the decision maker s objective function this is surely a more appropri

allocation of transmission losses to bilateral contracts in a competitive environment under open access market driven transactions have become the new independent decision variables defining the behavior of the power system understanding the impact of bilateral transactions on system losses is important to be able to allocate a loss component to each individual transaction and improve economic efficiency the theory presented here is based on the argument that it is always possible to compute the exact loss allocation corresponding to an infinitesimal bilateral transaction this leads to a set of governing differential equations whose solution yields the loss allocation for contracts of any size several examples illustrate the properties of both the proposed allocation equations and other methods the dependence of the proposed solution on the path of integration and a number of implementation issues

long run consumption risk and asset allocation under recursive utility and rational inattention we study the portfolio decision of a household with limited information processing capacity rational inattention or ri in a setting with recursive utility we find that rational inattention combined with a preference for early resolution of uncertainty could lead to a significant drop in the share of portfolios held in risky assets even when the departure from standard expected utility with rational expectations is small in addition we show that the equilibrium equity premium increases with the degree of inattention because inattentive investors with recursive utility face greater long run risk and thus require higher compensation in equilibrium our results are robust to the presence of correlation between the equity return and the ri induced noise and the presence of non tradable labor income

nodal pricing for distribution networks efficient pricing for efficiency enhancing dg as distributed generation dg becomes more widely deployed distribution networks become more active and take on many of the same characteristics as transmission we propose the use of nodal pricing that is often used in the pricing of short term operations in transmission as an economically efficient mechanism nodal pricing would properly reward dg for reducing line losses through increased revenues at nodal prices and signal prospective dg where it ought to connect with the distribution network applying nodal pricing to a model distribution network we show significant price differences between buses reflecting high marginal losses moreover we show the contribution of a dg resource located at the end of the network to significant reductions in losses and line loading we also show the dg resource has significantly greater revenue under nodal pricing reflecting its contribution to reduced line losses and loading

marginal tax rates evidence from nontaxable corporate bonds a note this study offers an alternative method of calculating marginal personal tax rates through the pairing of nontaxable industrial development and pollution control and taxable corporate bonds this procedure is shown to produce matched bond pairs that are comparable two hundred pairs of bonds are examined from the second quarter of 1973 through the second quarter of 1983 testing of the marginal tax rate relationships indicates that the marginal personal tax rate is less than the corporate statutory tax rate the examination of the relative pricing of taxable and nontaxable bonds provides an estimate of the marginal tax rates of bondholders who are indifferent between taxable and nontaxable bonds see for example gordon and malkiel 1 trczinka 6 and skelton 4 typically these implied marginal tax rates are calculated by comparing yield indices of taxable corporate bonds and nontaxable municipal bonds a potential problem with this method pointed out by trczinka 6 is that municipal and corporate bonds may not be of the same risk requiring some adjustment in the calculation another problem with this method is that the bond yield indices are computed from a sample of outstanding bonds introducing a potential yield to maturity bias associated with discount bonds skelton 4 an alternative procedure for calculating implied marginal tax rates is employed in this paper which avoids the problems of differential risks and the potential yield to maturity bias for discount bonds implied tax rates are calculated from pairs of newly issued bonds where each pair consists of one nontaxable corporate bond a tax exempt industrial development or pollution control bond and one taxable corporate bond 1 since only newly issued bonds are used in the computations the bias associated with capital gains and losses is avoided this study is organized into the following sections section i describes the data and the collection procedure the resultant implied marginal rates are presented in section ii summarizing and concluding remarks are provided in section iii

probabilistic game approaches for network cost allocation in a restructured power market the network cost is to be allocated between multiple players utilizing the system in varying capacities cooperative game approaches based on shapley value and nucleolus provide stable models for embedded cost allocation of power networks varying network usage necessitates the introduction of probabilistic approaches to cooperative games this paper proposes a variety of probabilistic cooperative game approaches these have variably been modeled based upon the probability of existence of players the probability of existence of coalitions and the probability of players joining a particular coalition along with their joining in a particular sequence application of these approaches to power networks reflects the system usage in a more justified way consistent and stable results qualify the application of probabilistic cooperative game approaches for cost allocation of power networks

debt and taxes and uncertainty with a graduated personal tax schedule miller showed that there could be an equilibrium debt supply for the corporate sector as a whole in the presence of uncertainty there is also a unique debt equity ratio for each individual firm and this ratio is related to the firm s operational risk characteristics however if firms merge and spin off in response to tax incentives the identity of firms is ambiguous and only the corporate sector is a meaningful construct these arguments are developed in both discrete and continuous models that employ extensions of the arbitrage free pricing theory in his famous paper debt and taxes 1977 merton miller 11 showed that the original miller modigliani propositions on the irrelevance of capital structure were not necessarily overturned by considerations of taxation miller argued that with a broad enough span of progressivity in personal income taxation the corporate tax advantage to the issuance of debt would be offset by the disadvantage to investors of receiving ordinary income on personal account in equilibrium the differential rates of return on equity and debt would be such that the marginal investor would be indifferent between purchasing debt instruments or equity the margin would be determined by the total amount of debt issued by the corporate sector but in a competitive world it would be unaffected by the debt issued by any one firm as a consequence the total supply of corporate debt would be determined in equilibrium increasing to the point where aggregate corporate value was not enhanced by further debt financing but any individual firm would be looking at prices set at the margin and would find itself indifferent between issuing debt or equity the purpose of this article is to extend miller s argument by recognizing the differences between debt and equity when the environment is not certain we will not be concerned with what might be called corner questions i e with whether or not there is a marginal investor or an internal equilibrium to do so would obscure the basic points we have to make instead we will examine models that have internal equilibria and ordinary neoclassical marginal interpretations in related work de angelo and masulis 5 6 have also extended miller s analysis but their primary concern was with the effects of a more detailed treatment of the tax code and with the impact of bankruptcy we will deal with such matters only in passing our central concern is with the impact of uncertainty our main result is the finding that there is a relationship between the capital structure of the firm as induced by tax effects and ordinary beta measures

tax management and investment strategies of property liability insurers abstract the tax reform act tra of 1986 reduced the incentives for institutional investors to participate in the tax exempt bond market this paper develops a model of profit maximization incorporating the tra provisions applicable to property liability pl insurers the theory predicts that pl insurers will use underwriting losses to shelter taxable investment income and invest the balance of their portfolios in tax favored securities our empirical evidence reveals that insurers continued to invest in tax exempts following the tra suggesting that implicit tax rates are low enough to attract insurers into the long term tax exempt market however insurers reduced the proportions of income derived from tax exempt interest and dividends following the tra

inattentive professional forecasters abstract using the ecb survey of professional forecasters to characterize expectations at the micro level we emphasize two new facts forecasters i fail to systematically update their forecasts and ii disagree even when updating it is moreover found that forecasters have predictable forecast errors these facts are qualitatively supportive of recent models of inattention and suggest a setup where agents imperfectly process information due to both sticky information a la mankiw reis and noisy information a la sims however building and estimating such an expectation model we find that it cannot quantitatively replicate the error and disagreement observed in the data

risk based locational marginal pricing and congestion management this paper develops a new electricity market clearing mechanism called risk based locational marginal pricing rlmp the rlmp is derived from the risk based security constrained economic dispatch model where risk is modeled to capture the system s overall security level compared to the traditional locational marginal pricing lmp which is composed of three components energy congestion and loss the rlmp consists of an additional risk component the risk component is a price signal to reflect the system s overall security level this paper discusses the features of rlmp and analyzes its benefits over traditional lmps the proposed concept and method are illustrated on a six bus system and the wecc 240 bus system

complex losses allocation to generators and loads based on circuit theory and aumann shapley method this paper presents a new method to allocate active and reactive losses simultaneously to generators and loads the allocation is calculated for each transmission branch identifying and quantifying the buses responsibilities in losses this is a two step process in the first step generators are modeled as current injections and loads as constant admittances in order to determine generator participations in losses in the second step loads are modeled as current sources and generators as constant admittances in order to determine load participations in losses the aumann shapley and circuit theories are used to calculate the participation of each real and imaginary current component considering them as independent players in the complex losses allocation game the properties of the aumann shapley method ensure equitable allocation and recovery of the total active and reactive losses counter flow cross subsidy and negative allocation issues are discussed numerical results are presented and discussed to demonstrate the applicability of the proposed method

tax induced clientele effects in the market for british government securities abstract this paper develops a new methods for measuring tax effects in bond markets and presents empirical results for british government securities the basic idea is to construct a least cost portfolio which for investors in a given tax bracket dominates a given bond a portfolio is said to dominate a bond if it provides cash flows which are at least as great in every period and has a lower price in effect our method calculates an upper bound on the value of a bond to investors in a given tax bracket the results demonstrate i the existence of clientele effects and ii the absence of an effective tax rate

photovoltaics and heat pumps limitations of local pricing mechanisms abstract demand side management has been proposed as one cornerstone for a future sustainable energy system local pricing may contribute to enable a smart behaviour of grid users by providing appropriate incentives in this paper we apply a local pricing algorithm on distribution grid level we analyse its effects for a typical german rural low voltage grid with high penetration of photovoltaics and heat pumps with households using electric heat pumps a potentially flexible consumer type is implemented in detail such setup is used to assess two issues firstly the exploited potential in terms of avoided curtailment and secondly redistributive effects of such local pricing mechanism under use of different stylized policy choices results show that even with given local incentives the consumption adjustment towards an efficient grid usage can frequently not be realized since complementarity of photovoltaics and space heating demand is limited and technical constraints do not allow to overcome this gap furthermore we show that despite limited merits in terms of system costs the redistributive effects of local pricing mechanisms are very significant

the value of the tax subsidy on risky debt the effect of corporate taxes on the market value of a levered firm continues to be a central issue in recent contributions in finance theory e g miller 1977 deangelo and masulis 1980 kim 1982 modigliani 1982 in these and other studies e g krause and litzenberger 1973 scott 1976 brennan and schwartz 1978 kim 1978 the relationship between market value and capital structure is established by formulating a tax subsidy function that specifies the partial effect of debt on the expected tax savings at the corporate level under the existing u s tax code a working assumption in most of these studies is that both principal and interest are tax deductible this assumption is made in the spirit of the original modigliani and miller 1963 formulation in which debt is taken to be perpetual and riskless indeed it is well known that the tax shield provided by the deduction of principal in a singleperiod framework has the same value as the tax shield from interest deductions in the case of perpetual and riskless debt under this assumption it is shown that in the absence of non debtthis paper examines the relationship between leverage and the value of the firm when non debt related tax shields are available and the corporate tax is levied as an income tax in a previous paper de angelo and masulis argue that in the presence of nondebt related tax shields the relationship between debt and firm value is concave resulting in an interior optimal capital structure when there is a tax induced differential in the cost of corporate debt their result derives from the fact that they assume the payment of debt principal and non debt related depreciation charges are deductible however the former deduction is consistent with a wealth tax while the latter is consistent only with an income tax we show that if the interest alone is deductible the debt firm value function is convex resulting in corner solutions to the capital structure problem the authors wish to thank richard castanias richard green lemma senbet and especially an anonymous referee for helpful comments and richard green and robert dammon for computational assistance

tax arbitrage and the existence of equilibrium prices for financial assets in models where both investors and securities are subject to differential taxation there may be no set of prices that rule out infinite gains to trade or tax arbitrage this paper characterizes the joint restrictions on financial asset returns and investors tax schedules that preclude tax arbitrage in the absence of short sale constraints the authors show that if there exists any configuration of marginal tax rates on investors tax schedules that rule out infinite gains to trade then no tax arbitrage prices will exist they also show that the existence of no tax arbitrage prices ensures the existence of equilibrium prices the effects of differential taxation on the equilibrium prices of financial assets have attracted much attention from financial economists in recent years otherwise identical securities that contribute to taxable income to different degrees will in general be valued differently by taxable investors as a result tax considerations have been useful in helping explain the effect of dividend yield on stock returns the effect of coupon levels and term to maturity on bond prices 2 the timing of investors portfolio transactions 3 and the observed capital structures of firms 4 while a rich set of observed behaviors can be better understood by reference to differential taxation there are well known difflculties in dealing with taxes in a general equilibrium setting to clear markets relative prices must reflect the marginal rates of substitution of all agents simultaneously when tax rates differ across investors however this condition can be impossible to achieve to illustrate consider a world of perfect certainty with two assets a tax exempt municipal bond and a taxable government bond to equate marginal rates of substitution the rate of return on the government bond rg must equal that on the municipal rm grossed up by one minus the investor s marginal tax rate ti that is rg rm 1 ti if there are investors in more than one tax bracket this condition will obviously be impossible to satisfy for all of them simultaneously both authors from graduate school of industrial administration carnegie mellon university we wish to thank scott richard steven spear and an anonymous referee for helping us sort through the issues considered here seminar participants at columbia wharton the johnson symposium on asset pricing at the university of wisconsin madison and the 1986 western finance association meeting also provided valuable comments we are also grateful for the financial support provided by the center for public policy research carnegie mellon university all errors are our own responsibility

the effect of taxes and depreciation on corporate investment and financial leverage this paper provides an analysis of the effect of corporate and personal taxes on the firm s optimal investment and financing decisions under uncertainty it extends the deangelo aad masulis capital structure model by endogenizing the firm s investment decision the authors results indicate that when investment is allowed to adjust optimally the existing predictions about the relationship between investment related and debt related tax shields must be modified in particular the authors show that increases in investment related tax shields due to changes in the corporate tax code are not necessarily associated with reductions in leverage at the individual firm level in cross sectional analysis firms with higher investment related tax shields normalized by expected earnings need not have lower debt related tax shields normalized by expected earnings unless all firms utilize the same production technology differences in production technologies across firms may thus explain why the empirical results of recent cross sectional studies have not conformed to the predictions of deangelo and masulis

a reexamination of the value of tax options this article reexamines the value of tax trading when the tax rate on long term realizations is less than that on short term realizations in particular the value of the option to realize long term capital gains and repurchase stock in order to increase one s tax basis and restart the option to realizefuture losses short term is examined empirically our estimate of the incremental value of restarting which is based on the results of simulations of several alternative tax trading policies over a large number of independent return sequences is generally much smaller than that reported by constantinides 1984 the incremental value of restarting is shown to depend critically on the particular pattern of realized returns and the assumed tax treatment of unrealized capital gains at the end of the simulation period the effects of stockprice volatility transaction costs portfolio offset rules and realization cutoff levels on the value of tax trading are also investigated

the critical implicit tax rate and capital structure in a miller world firms are indifferent between debt and equity when the tax rate that isimplicitly used to price a bond is equal to the statutory corporate tax rate in this paper we derive the implicit tax rate that makes a firm marginally indifferent between debt and equity when debt related tax savings are uncertain we analyze the functional relationship between this critical tax rate and the amount of debt issued by a firm and discuss the implications for a firm s optimal capital structure

taxes capital structure and bondholder clienteles despite much recent progress financial theory has yet to explain the connection if any between the u s tax code and many observed characteristics of corporate bonds empirically why is there no single tax rate equating yields on corporate bonds with yields on tax exempt municipal bonds of apparently identical risks and maturities 2 specifically why does the spread in yields between corporate and municipal bonds divided by the yield on corporates a conventional measure of the marginal tax rate on corporates decrease with increasing risk and maturity more generally why are different types of bonds evidently held by clienteles of investors in tax clienteles for corporate bonds are identified in a competitive financial equilibrium under an asymmetric corporate income tax with interest preceding principal state contingent bonds with higher coupon yields are issued by firms with higher pretax cash inflows per dollar of nondebt tax shield purchased by investors in lower tax brackets and implicitly priced at lower marginal tax rates on these bonds all investors earn tax induced surpluses by contrast all other bonds have implicit tax rates typically equal to the corporate rate and yield for many investors no tax induced surpluses we gratefully acknowledge the helpful comments of george constantinides kose john merton miller jim scott marti subrahmanyam and participants in seminars at baruch chicago columbia houston michigan nyu rutgers usc washington wharton the american finance association the western finance association and the johnson symposium on taxes and finance at wisconsin george constantinides was especially helpful 1 the most notable contribution is miller 1977 other recent papers include chen and kim 1979 kim lewellen and mcconnell 1979 deangelo and masulis 1980a 1980b taggart 1980 kim 1982 auerbach and king 1983 and talmor haugen and bornea 1985 black 1971 anticipates an equilibrium with clienteles 2 schaefer 1982a identifies tax induced clienteles of bondholders in the british gilt market van horne 1982 reports that implicit tax rates vary over time as the supply of discount bonds changes additional evidence is cited in trczinka 1982

a model for efficient consumer pricing schemes in electricity markets suppliers in competitive electricity markets regularly respond to prices that change hour by hour or even more frequently but most consumers respond to price changes on a very different time scale i e they observe and respond to changes in price as reflected on their monthly bills in this paper we examine mixed complementarity programming models of equilibrium that can bridge the speed of response gap between suppliers and consumers yet adhere to the principle of marginal cost pricing of electricity we develop a computable equilibrium model to estimate ex ante time of use tou prices for a retail electricity market it is intended that the proposed models would be useful 1 for jurisdictions e g ontario where consumers prices are regulated but suppliers offer into a competitive market 2 for forecasting forward prices in unregulated markets and 3 in evaluation and welfare analysis of the policies regarding regulated tou pricing compared to regulated single pricing

a novel nucleolus based loss allocation method in bilateral electricity markets the situation of current research on power losses allocation in bilateral electricity markets is presented based on cooperative game theory a novel nucleolus theory based method for power losses allocation under the bilateral transactions model is put forward and compared in detail with the shapley value based allocation method the impacts of different market players on network power losses are taken into account with the new method network power losses can be allocated to each transaction reasonably the allocation results would not be affected by the sequence that each transaction is formed and be active the method answers for the open equal and impartial principles of electricity market and can be easily understood and accepted by market players numerical tests validated the equity and validity of the method

a novel policy for locational marginal price calculation in distribution systems based on loss reduction allocation using game theory in this paper a novel locational marginal price lmp policy for distribution system with significant penetration of distribution generation dg in competitive electricity market is presented this new lmp method is based on remunerating dg units for their participation in reduced amount of energy losses in distribution systems brought about by participation of all dg units in supplying demand also this method is combined with an iterative solution this approach provides an efficient tool for distribution companies discos to estimate the state of the system in the next step which other existing approaches of lmp fail to provide this system state estimation finally in order to expand lmp method and provide effective prediction method for discos to estimate the day ahead state of the system ann tool is employed to predict the market price and demand for the next 24 h this lmp prediction is a powerful operational tool for disco to exert its control over private dg units however prediction methods contain error therefore uncertainty modeling is implemented for modeling the effect of error in prediction on the lmp calculation for the next day

optimal sticky prices under rational inattention this paper presents a model in which price setting firms decide what to pay attention to subject to a constraint on information flow when idiosyncratic conditions are more variable or more important than aggregate conditions firms pay more attention to idiosyncratic conditions than to aggregate conditions when we calibrate the model to match the large average absolute size of price changes observed in micro data prices react fast and by large amounts to idiosyncratic shocks but only slowly and by small amounts to nominal shocks nominal shocks have strong and persistent real effects we use the model to investigate how the optimal allocation of attention and the dynamics of prices depend on the firms environment jel e 3 e5 d8

tax clienteles and optimal capital structure under uncertainty this article demonstrates that investors heterogeneous tax status implies that they value bonds differently at the margin due to asymmetric personal taxes high risk bonds generate a higher amount of taxable income than low risk bonds and are therefore held by investors in low tax brackets in such a setting firms can increase their value by choosing a capital structure that attracts a particular bondholder clientele the author analyzes how bondholder clienteles change as the uncertainty about a bond s final payoff is resolved over time and shows how tax clientele effects influence firms capital structure decisions copyright 1990 by the university of chicago

the interaction of corporate and government financing in general equilibrium this article develops a general equilibrium model for analyzing the in teraction of corporate financial and production decisions consumers behavior and government financing the authors use the model to inv estigate how changes in income tax rates and government debt policy a ffect production interest rates and consumer welfare they also sho w how changes in the different tax rates affect other tax rates in ge neral equilibrium copyright 1988 by the university of chicago

a novel policy for lmp calculation in distribution networks based on loss and emission reduction allocation using nucleolus theory this paper proposes a new policy to calculate the locational marginal price lmp in the distribution networks containing distributed generation dg the proposed policy is based on remunerating the dg units to reduce the loss and emission of the network lmp at each dg bus is calculated according to the contribution of the dg to the reduced amount of loss and emission an iterative algorithm which is based on the nucleolus theory is proposed to allocate the loss and emission reduction the proposed algorithm will provide a robust state estimation tool for distribution companies discos in the next step of operation the state estimation tool provides the decision maker with the ability to exert its control over private dg units when the loss and emission are minimized also the proposed pricing policy requires decision maker to simply apply its best response strategy to the lmp based on the priority of loss emission and disco s extra benefit the proposed methodology is applied to two realistic distribution networks and efficiency and accuracy of the method are verified