measuring heterogeneous reservation prices for product bundles this paper develops a model for capturing continuous heterogeneity in the joint distribution of reservation prices for products and bundles our model is derived from utility theory and captures both within and among subject variability furthermore it provides dollarmetric reservation prices and individual level estimates that allow the firm to target customers and develop customized and nonlinear pricing policies our experiments show that regardless of whether the products are durables or nondurables the model captures heterogeneity and predicts well models that assume homogeneity perform poorly especially in predicting choice of the bundle furthermore the methodology is robust even when respondents evaluate few profiles self stated reservation prices do not have any informational content beyond that contained in the basic model the direct elicitation method appears to understate overstate the variation in reservation prices across consumers for low priced high priced products and bundles hence this method yields biased demand estimates and leads to suboptimal product line pricing policy the optimization results show that the product line pricing policy depends on the degree of heterogeneity in the reservation prices of the individual products and the bundle a uniformly high price strategy for all products and bundles is optimal when heterogeneity is high otherwise a hybrid strategy is optimal

the effects of selling packaged goods on inventory decisions in this paper we study within a newsboy type modeling framework the common business practice of retail firms to sell products not only as independent items but also as part of multiproduct packets packaged goods our emphasis is on understanding the effects of such practices on the inventory decisions of the firm we provide insights on the resulting level of suboptimality when inventory decisions are made with demand information only on the independent items and without accounting for the demand substitution structure induced between independent items and packaged goods our stylized model studies an environment with two products that are not direct substitutes for each other sold either independently or as part of a packet that contains one unit of each we provide necessary and sufficient optimality conditions for this model and suggest an efficient numerical search for obtaining the optimal stocking levels an extensive computational study allowed us to provide insights on the nature of the optimal stocking policies the suboptimality of independent newsboy policies the effects of demand correlation among individual products and multiproduct packets and the determining role of induced substitution structure among products during stockout occasions on the profitability of the inventory system

analysis of the economic impact of different chinese climate policy options based on a cge model incorporating endogenous technological change abatement cost is the main concern for climate change mitigation and the key factor for mitigation cost is technological change this study established an integrated economic energy environmental dynamic computable general equilibrium cge model representing endogenous technological change for china s climate change policy analysis this study analyzed and compared the economic impact of different approaches to mitigation commitments as well as the potential role of technological change in the formulation of mitigation targets and commitments taking into account china s climate policy making needs based on the current international climate negotiation process the results show that absolute emission limits similar to the kyoto protocol will seriously impede the future economic development of china while the impact of an 80 reduction in carbon intensity forecast for 2050 based on the 2005 level is relatively small technological change can promote economic growth improve energy efficiency and reduce carbon intensity per unit of output through the substitution of production factors consequently it can reduce marginal abatement cost and related gdp loss by mitigation at the same time it can increase mitigation potentials and extend the emission reduction amount showing that consideration of the impact of technological change when deciding the emission reduction targets is necessary

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

strict rational expectations equilibria with diffuseness abstract for smooth static pure exchange economies under uncertainty it is shown that a diffuseness condition on the distribution of traders characteristics as the state of the world varies permits one to use only a weak dimensionality restriction in the proof of the genericity of existence of strict rational expectations equilibria a generic result on the amount of information conveyed by equilibrium price functions and comparisons with some examples of nonexistence are given

bundling retail products models and analysis we consider the impact of bundling products on retail merchandising we consider two broad classes of retail products basic and fashion for these product classes we develop models to calculate the optimal bundle prices order quantities and profits under bundling we use this analysis to establish conditions and insights under which bundling is profitable our analysis confirms that bundling profitability depends on individual product demands bundling costs and the nature of the relationship between the demands of the products to be bundled we also provide detailed numerical examples

comparing the robustness of trading systems to higher order uncertainty this paper compares the performance of a decentralized market with that of a dealership market when traders have differential information trade occurs as a result of equilibrium actions in a bayesian game where uncertainty is captured by a finite state space and information is represented by partitions on this space in the benchmark case of trade with common knowledge of endowments the two mechanisms deliver virtually identical outcomes however with differential information the dealership market has strictly higher trading volume and yields an efficient posttrade allocation in most states in contrast the decentralized market suffers from suboptimal trading volume the reason for this poor performance is the vulnerability of the decentralized market to higher order uncertainty concerning the fundamentals of the market traders may know that mutually beneficial trade is feasible and perhaps know that they know and yet a failure of common knowledge that this is so precludes efficient trade the dealership market is robust to this type of uncertainty

reducing rebound effect through fossil subsidies reform a comprehensive evaluation in china abstract china has committed a sharp reduction in its carbon intensity by 2020 and proposed to take integrated policy package including energy subsidy reform to achieve this goal while energy efficiency improvement is the key influencing factor for this goal its effectiveness is significantly determined by rebound effect energy subsidy as an economic regulation policy would significantly affect rebound effect to explore how china s fossil subsidies reform would affect rebound effect this study conducts a comprehensive evaluation based on a multi sector computable general equilibrium cge model rebound effects at different technological improvement levels are investigated and the impacts of different subsidies reform scenarios on mitigating rebound effects and on the whole economy is analyzed the results provide significant policy insights firstly rebound effect does exist in china larger for electricity than for primary energies secondly by removing fossil energy subsides the rebound effect would be effectively mitigated and removing all subsides would reduce the rebound effect most however it would bring significant negative impacts on the macro economy thirdly an integrated policy with removal of fossil energy subsidies and increment of clean energy subsidies would be more effective greatly reducing rebound effect and also bring benefits for both economy and environment our findings would be critical for china s low carbon policy making in the future

achieving low carbon urban passenger transport in china insights from the heterogeneous rebound effect abstract the rapid increase in energy consumption and carbon emissions in china s passenger transportation sector threatens both the environment and the nation s energy security energy efficiency improvements leading to lower fuel consumption are therefore of considerable interest to policymakers trying to achieve low carbon travel however it is well established that higher miles per gallon efficiencies can by reducing the costs of travel lead to some level of increased personal travel the so called rebound effect this paper describes an empirical study to measure the size and also the variability in this effect at the provincial level and what this variability implies for a carbon tax policy this rebound effect is quantified using a two stage almost ideal demand system aids model a backfire effect i e the rebound is 100 is observed in urban passenger transport with disparities in the size of the rebound effect ranging from 114 to 153 among china s provinces the differences in economic development as well as related differences in consumers behavior especially in the behavior of marginal consumers have contributed to this heterogeneity with a larger carbon tax more than 110yuan tonne needed in richer provinces such as jiangsu zhejiang guangdong and fujian in order to bring about similar levels of carbon reductions nationwide

the implications of costs capacity and competition on product line selection we consider a situation in which a manufacturer has to select the product s to sell as well as the selling price and production quantity of each selected product there are two substitutable products in the consideration set where product 2 has a higher quality and reservation price than that of product 1 by considering the cannibalization effect that depends on the selling price of each product the manufacturer needs to evaluate the profit function associated with three different product line options sell both products or only one of the 2 products in order to examine the impact of costs capacity and competition on the optimal product line selection optimal price and optimal production quantity analytically we present a stylized model in this paper so that we can determine the conditions under which a particular option is optimal

carbon pricing and energy efficiency improvement why to miss the interaction for developing economies an illustrative cge based application to the pakistan case abstract carbon energy taxes and energy efficiency improvement are studied well in the recent years for their potential adverse impacts on economy especially for lost production and international competitiveness and rebound effects however little attention has been paid to investigate them jointly which can not only prevent fall of energy services cost and thereby rebound effect but reduce the associated macroeconomic costs this study thus employs a 20 sector cge model to explore separately the impacts of carbon tax and its coordinated implementation with energy efficiency improvement on the pakistan economy the country underwent enormous pressure of energy security issues as well as climate change fallouts in the last couple of years and can be regarded as a suitable candidate for energy environmental conservation policies to be considered at a broader context with more concrete efforts the simulation results show that the impact of carbon tax on gdp is negative but resulting reductions in pollutant emissions are relatively high moreover the gdp is expected to grow comparatively positive when analyzed with improvements in energy efficiency with even higher decline in energy consumption demand and so emissions this simultaneous economic and environmental improvement would thus have positive implications regarding sustainable development of the country

energy efficiency rebound effects and the environmental kuznets curve technological change is one factor used to justify the existence of an environmental kuznets curve and technological improvements have been argued to be a key factor in mitigating the impacts of economic growth on environmental quality in this paper we use a cge model of the scottish economy to consider the factors influencing the impacts of one form of technological change improvements in energy efficiency on absolute levels of co2 emissions on the carbon intensity of the economy co2 emissions relative to real gdp and the per capita ekc relationship these factors include the elasticity of substitution between energy and non energy inputs responses in the labour market and the structure of the economy our results demonstrate the key role played by the general equilibrium price elasticity of demand for energy and the relative influence of different factors on this parameter

ecological deficit tax a tax design and simulation of compensation for ecosystem service value based on ecological footprint in china abstract the expansion of resource tax to the occupation of natural ecological space is an important part of china s tax reform this paper quantifies the occupation of natural ecological space based on the demand for energy water and agriculture resources in terms of an ecological footprint and creatively convert the carbon emissions from energy consumption to occupation of carbon sinks such as woodlands and grasslands to obtain the ecological deficits in various regions of china based on the evaluation of the ecological service value the paper determines the correspondence between consumption projects land types and ecological functions realized the accounting of the economic value of the national ecological deficit as the sum of the regional deficits based on this the ecological deficit is used as an unpaid input factor in the construction of a green social accounting matrix table and a recursive dynamic computable general equilibrium model is used to analyze the effects of a tax policy on the compensation for the ecological deficit value the simulation results show that the double dividend hypothesis exists in the primary and tertiary industries and employment in the secondary industry that with a high value added labor decreased resulting in decreases in both the labor income of residents and their proportion of the national income the growth rate of gdp decreases in the short term and then gradually increases capital appreciation and net exports contribute greatly to economic growth based on the positive role of taxation schemes in reducing ecological deficits and their negative impacts on economic growth and the income distribution this paper suggests that with the improvement of big data on ecological occupation an ecological deficit tax can be introduced to target the energy sector which has a large ecological footprint in addition household income should be protected through tax cuts transfer payments and earmarked funds among other means to promote economic growth and protect the environment

rational behavior and rational expectations abstract this paper presents a new definition of rational expectations equilibrium in security markets characterized by a rigorous treatment of the decision problem facing each agent a rational expectations equilibrium is one in which it is common knowledge among the agents that all of them are rational and that the price observed is the market clearing price the paper shows that such equilibria always exist and that they need not have the property that for generic economies the equilibrium price reveals all economically relevant information the paper also shows that the new definition generalizes existing definitions of rational expectations equilibrium

economics and environmental implications of fuel efficiency improvement in malaysia a computable general equilibrium approach the continued increase in urbanization and vehicle ownership poses an increasing challenge in curbing the rising energy consumption and co2 emissions in malaysia for more than a decade road vehicles have been the leading contributor in the country due mainly to their heavy reliance on petroleum products particularly gasoline and diesel the efficient utilization of petroleum products becomes paramount in reducing malaysia s overall co2 emissions in the land transportation sector the timely abolition of petroleum product subsidies in 2014 may provide a financial source to support the improvement of petroleum product efficiency the primary purpose of this paper is to examine the impact on economic growth and sectoral performance with fuel subsidy savings being reallocated to the biofuel industry for research and development purposes the study then investigates whether an environmental tax on petroleum products could induce more energy saving and emission control this research applies the computable general equilibrium modeling for the simulation as it takes into account the interaction between petroleum products and the economy as a whole the malaysia input output tables 2010 is the main database used in the simulation the simulation results found that fuel efficiency improvement could produce a double dividend effect with simultaneous benefits on the economy and environmental quality a simultaneous implementation with fuel tax policy appears to be one suitable complementary measure for a further emission cut however sufficient compensation schemes might be necessary to stimulate economic activities over time based on the simulation results policymakers should emphasize fuel efficiency improvement as a crucial strategy to control the rising energy consumption and emissions in malaysia

gaussian demand and commodity bundling in an important and widely cited essay adams and yellen 1976 examine the use of package selling as a price discrimination device they consider a monopolist producing two goods with constant unit costs and facing buyers with diverse tastes the marginal utility of a second unit of either good is assumed to be zero for all buyers the two goods are independent in demand for all buyers so that any buyer s reservation price for the first unit of either good is independent of the market price of the other thus the maximum amount any buyer would pay for a bundle consisting of one unit of each good is the sum of the two reservation prices and buyers are completely described by the values of those two prices 2 resale markets are assumed away in order to obtain comparative results for alternative pricing strategies the distribution of reservation prices in the adams yellen framework is assumed to be bivariate normal implications of gaussian demand are explored pure bundling is shown to operate by reducing buyer diversity thus facilitating the capture of consumers surplus it generally makes buyers worse off than unbundled sales it is more profitable if average reservation prices are high enough mixed bundling combines advantages of both pure bundling and unbundled sales and it is generally strictly more profitable than either bundling which treats goods symmetrically seems most attractive under symmetric reservation price distributions i am indebted to severin borenstein for superb research assistance to the ford motor company for research support through a grant to m i t and to the harvard economics department for housing me as a visiting scholar while most of this research was performed of course only i can be held responsible for this essay s shortcomings 1 the first clear recognition of this possibility seems to have been by stigler 1968 but also see burstein 1960 2 paroush and peles 1981 relax the assumption that consumers purchase at most one unit of each good but they consider only two types of buyers both with linear demand functions they retain the assumption that demands are independent for all buyers telser 1979 and phillips 1981 use different frameworks to analyze bundling policies spence 1980 explores the relation between bundling across commodities as here and bundling multiple units of the same

energy taxation and the double dividend effect in taiwan s energy conservation policy an empirical study using a computable general equilibrium model abstract faced with pressure from greenhouse gas reductions and energy price hikes the taiwan government is in the process of developing an energy tax regime to reflect environmental external costs and effectively curb energy consumption as well as mitigate co2 emissions through an adequate pricing system this study utilizes a cge model to simulate and analyze the economic impacts of the draft energy tax bill and its complementary fiscal measures under the assumption of tax revenue neutrality the use of energy tax revenue generated for the purpose of reducing income tax is the best choice with double dividend effects since it will effectively stimulate domestic consumption and investment and consequently mitigate the negative impacts of the distortionary tax regime the double dividend effect is less significant however when the supplementary measures being used are for government expenditure nevertheless all supplementary measures have effectively reduced energy consumption which means they have delivered at least the first dividend in the sense of co2 emissions control it has been verified in this study that having adequate public finance policy measures is the key to realizing the double dividend effect

the existence of fully rational expectations approximate equilibria with noisy price observations abstract nonrevealing fully rational expectations approximate equilibria exist in microeconomic pure exchange economies in which uninformed agents have suitably dispersed noisy price observations such traders maximize a state dependent expected utility conditional on the price vector they observe the distributions of noisy price observations and the correct equilibrium relationship between states of the world and prices in equilibrium aggregate excess demand is small with high probability in every state of the world and its expectation is also small this magnitude diminishes as the noisy price observations become more accurate equilibria are obtained by applying a fixed point argument to state dependent excess demand functions which are smooth because of the noisy price observations

a general equilibrium view of global rebound effects abstract how do energy efficiency gains affect energy consumption the effects are generally called rebound effects in the literature previous studies have extensively focused on only part of the global economy to study rebound effects e g energy consumption by households one industry or one country however since the global economy is highly connected among countries these studies may lead to misleading conclusions if the rebound effects in the rest of the economy are significant recently saunders 2008 analyzes the demand side by taking the global economy as a whole wei 2007 also provides a general analysis by using cobb douglas production functions for the global economy the present article expands wei 2007 general analysis to explore the rebound effects from an economist s viewpoint by taking the global economy as a whole and applying general forms of production functions the analysis provides new insights related to rebound effects we highlight the role of energy supply as a determinant of rebound we show that the substitution between energy resources and other productive resources is more relevant to long term rebound we predict that long term rebound may be lower than short term rebound and we also discover that super conservation can happen in both the short term and the long term

generic existence of completely revealing equilibria for economies with uncertainty when prices convey information conditions which imply the existence of strict rational expectations equilibria for most static pure exchange economies where prices convey information about the state of the world are analyzed information is aggregated and transmitted by prices because agents have different initial information and maximize the conditional expectation of state dependent utility functions major results state that if with probability one agents characteristics do not vary too much as the state of the world varies then generically there exist equilibrium price functions which reveal all initial information more precisely if the support of the image measure is contained in a compact c1 manifold satisfying some technical conditions which is of sufficiently low dimension relative to the number of commodities then existence of completely revealing equilibria is generic any economy satisfying these assumptions can be approximated by a sequence of economies which also obey these assumptions and have completely revealing equilibrium price functions slight perturbations do not destroy the existence property

do increases in energy efficiency improve environmental quality and sustainability governments world wide increasingly see energy efficiency as an important aspect of sustainability however there is a debate in the literature as to whether the impact of improved energy efficiency on reducing energy use might be partially or more than wholly offset through rebound and backfire effects this paper clarifies the theoretical conditions under which such effects would occur and explores their likely significance using a computable general equilibrium cge model of the scottish economy we find that for scotland a general improvement in energy efficiency in the production sectors of the economy initially produces rebound effects that eventually grow into backfire energy use ultimately increases in response to an efficiency gain and the ratio of gdp to co2 emissions falls the economic factors underpinning rebound effects are straightforward energy efficiency improvements result in an effective cut in energy prices which produces output substitution competitiveness and income effects that stimulate energy demands however the presence of strong rebound or even backfire does not mean that efficiency enhancing policies are irrelevant rather it suggests that such policies operating alone are insufficient to generate environmental improvements the implication is that a co ordinated portfolio of energy policies is required

multiproduct nonlinear pricing typically work on mechanism design has assumed that all private information can be captured in a single scalar variable this paper explores one way in which this assumption can be relaxed in the context of the multiproduct nonlinear pricing problem it is shown that the firm will choose to exclude some low value consumers from all markets a class of cases that allow explicit solution is derived by making use of a multivariate form of integration by parts in such cases the optimal tariff is cost based

product bundling impacts of product heterogeneity and risk considerations abstract bundling has been extensively studied in the literature and its benefits have been manifested through three perspectives of achieving better price discrimination helping to save costs and preserving the power for deterring a potential entrant in this study we examine two aspects of bundling which have not been studied before we examine the impact of product heterogeneity on bundling decisions we also address risk considerations in a bundling problem specifically we consider a retailer who has the option of selling a bundle of two products pure bundling policy or selling the products separately no bundling policy the retailer could also face a product selection problem for which we consider three scenarios of choosing two products with perfectly positively correlated perfectly negatively correlated or independent reservation prices we use a mean variance approach to include retailer s risk through her profit variability when maximizing the expected value of profit we characterize the conditions under which a policy or scenario performs better than the others under the influence of product heterogeneity and or retailer s risk aversion among other findings we show that optimal bundling price chosen by a risk averse decision maker cannot be larger than the one chosen by a risk neutral decision maker

the economy wide rebound effect from improved energy efficiency in swedish industries a general equilibrium analysis the objective of this paper is to analyse the rebound effect from increased efficiency in industrial energy use in sweden energy efficiency improvements can have significant micro and macroeconom

approximate equilibria in microeconomic rational expectations models abstract for general equilibrium models in which prices transmit information among asymmetrically informed traders strict rational expectations approximate equilibria are defined a state dependent price function is an e equilibrium if when agents use their own information and that conveyed by prices aggregate excess demand in each state of the world does not exceed e for any positive e existence requires only very mild assumptions continuity and compact support moreover there are revealing e equilibria for all smooth economies satisfying a dimensionality condition in an open neighborhood of this case existence of maximally revealing e equilibria holds

a graphical analysis of bundling by comparing the demand for a bundle and the vertical sum of the demands for its components this article analyzes the profitability and welfare consequences of bundling if it does not lower costs bundling tends to be profitable when reservation values are negatively correlated and high relative to costs if bundling lowers costs and costs are high relative to average reservation values positively correlated reservation values increase the incentive to bundle bundling and charging a price equal to the sum of the components prices lowers consumer surplus bundling can however increase consumer surplus when it results in lower prices copyright 1995 by university of chicago press

multiproduct monopoly commodity bundling and correlation of values through what selling strategy can a multiproduct monopolist maximize his profits when his knowledge about individual consumers preferences is limited one possibility extensively studied in the context of a single good monopoly is to use quantity dependent pricing as a means of discriminating among customers with differing tastes see for example oi 1971 and maskin and riley 1984 an alternative technique for price discrimination first suggested by stigler 1968 and analyzed further by adams and yellen 1976 is for the monopolist to package two or more products in bundles rather than selling them separately through a series of examples adams and yellen illustrate that bundling can serve as a useful price discrimination device even when all consumers willingnesses to pay for each of the goods individually are unaffected by whether they are also consuming the other product a typical example is illustrated in figure i adapted from figure iv in adams and yellen where there are two goods three consumers ab c who consume at most one unit of each good with reservation values for each good that are independent of whether the other good is consumed and zero costs of production there a bundle offered at a price of 100 fully extracts all potential surplus which would be impossible pricing the goods independently unfortunately though these authors do not provide any general characterization of the circumstances in which bundling is actually a multiproduct monopolist s optimal strategy their examples however such as figure i create the impression that the profitable use of bundling

an integrated product planning model for pricing and bundle selection using markov decision processes and data envelope analysis abstract when bundling products during the product planning stage there are a number of possible combinations that can be offered to customers consider a firm that offers n distinctive products then there are 2 n n 1 possible bundling combinations now if we wish to make pricing and bundle selection decisions keeping in my mind limited inventory and a finite time horizon then the size of the state space could be very large and finding an optimal solution could be impossible to tackle this issue we formulate an integrated model that utilizes a markov decision process and data envelope analysis bundle selections are made using data envelope analysis in each decision epoch once the efficient bundles are selected they are priced by solving a markov decision process using dynamic programming numerical examples are solved to exhibit the model s potential in solving real world problems

review on fuel economy standard and label for vehicle in selected asean countries abstract sustainable supply of energy at affordable prices is vital to ensure the human development asean is committed pursuing for a clean and green region with fully established mechanisms for sustainable development to ensure the protection of regional environment resources and the high quality of people s life nowadays energy use in the transportation sector represents an important issue in asean countries therefore it is believed that the introduction of fuel economy standards and labels is the key to save energy in this sector fuel economy standards and labels are relatively cheap measure to influence consumer behaviour and to induce car manufacturers to produce more efficient vehicles fuel economy standards and labels for vehicle are being implemented in many countries around the world to save fuel consumption and mitigate co2 emission this paper is a review on fuel economy standard and labels for vehicle in some selected asean countries such as singapore indonesia malaysia philippines thailand and vietnam it has been found that singapore is the leading country in asean that has implemented fuel economy standards and labels moreover it has been found that the implementation of cleaner fuels standard play a crucial role in protecting public health and the environment from transportation sector emissions the most common alternative fuels used in asean are biodiesel ethanol methanol propane hydrogen and natural gas