an analysis of interfirm cooperation theory and evidence from electric power pools this paper develops and tests a model for analyzing the extent to which an individual utility participates in a power pool it incorporates the benefits and costs of pool membership in a profit maximization model of an individual utility the study finds that coordination reflects the benefits and costs the degree to which other utilities are committed to the pool and the utility s behavior toward other utilities the results show that large firms are reluctant to pool with small firms and the us pools tend to be loosely coordinated policy implications are that regulatory commissions can be instrumental in coordination efforts and that interstate cooperation among regulatory authorities is needed to encourage pooling and obtain regional solutions to regional problems it is also important to reduce the transactional costs of pooling wherever possible 37 references 3 figures 1 table

unit roots and structural change an application to us house price indices this paper employs time series analysis to investigate the price dynamics of the house price indices included in the s p case shiller composite10 index and the validity of the ripple effect following the approach outlined by meen 1999 more specifically the paper first considers the time series properties of the capital gain from the sale of houses that is it examines whether shocks to the capital gain series produce permanent or transitory changes in general the findings lack uniformity and depend upon the assumptions imposed by the testing procedures secondly it considers the time series properties of the ratio of regional house price indices to the composite10 index that is it examines whether shocks to these house price ratios exhibit trend reversion the tests of this ripple effect also display conflicting evidence

getting ppp right identifying mean reverting real exchange rates in panels abstract recent advances in testing for the validity of purchasing power parity ppp focus on the time series properties of real exchange rates in panel frameworks one weakness of such tests however is that they fail to inform the researcher as to which cross section units are stationary as a consequence a reservation for ppp analyses based on such tests is that a small number of real exchange rates in a given panel may drive the results in this paper we examine the ppp hypothesis focusing on the stationarity of the real exchange rates in up to 25 oecd countries we introduce a methodology that when applied to a set of established panel unit root tests allows the identification of the real exchange rates that are stationary our results reveal evidence of mean reversion that is significantly stronger as compared to that obtained by the existing literature strengthening the case for ppp

ripple effects in south african house prices this paper analyses the ripple effect of house prices in large medium and small sized houses of five major metropolitan areas of south africa namely cape town durban unicity greater johannesburg port elizabeth uitenhage and pretoria based on available quarterly data covering the period of 1966 q1 to 2010 q1 following the extant literature the issue is contextualised as a unit root problem with one expecting the ratios of metropolitan house price to national house price to exhibit stationarity to an underlying trend value if there is diffusion in house prices using bayesian and non linear unit root tests besides the standard linear tests of stationarity with and without structural break overwhelming support is found for the existence of robust ripple effects also factor analysis conducted suggested that ripple effects originate in cape town for the large housing segment and in durban for the medium and small sized houses

what do college seniors know about economics if college seniors who have taken an economics course were asked questions that test their knowledge of basic economics what would the results show would seniors give correct answers to most questions or would they show significant deficiencies students are exposed to many ideas during their undergraduate education so one would not expect them to retain all of the economic content they were taught but one would hope that they would retain at least a knowledge of basic economics this study investigates whether that is the case two data sources were used for the study the first was from a gallup survey of a national random sample of 300 college seniors walstad and max larsen 1992 the survey includes 15 multiple choice questions testing economic knowledge the responses from that survey can be separated according to whether students took economics the second data set came from the economics scores for 12 854 students who took the major field test in business ii mftb sponsored by higher education assessment of the educational testing service ets 1998 the mftb covers content typically taught in an undergraduate program in business and contains about 20 multiple choice questions on basic economics although there are differences between the two data sets we viewed this as an advantage for our study our hypothesis is that most college seniors would show relatively limited knowledge of basic economics no matter what questions were asked or how the data were collected we expected students responding to the gallup questions to score higher than students taking the mftb because the gallup questions were simpler and designed for telephone in

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

what can we learn from the grand policy experiment lessons from so2 allowance trading stable url http links jstor org sici sici 0895 3309 28199822 2912 3a3 3c69 3awcwlft 3e2 0 co 3b2 tthe journal of economic perspectives is currently published by american economic association your use of the jstor archive indicates your acceptance of jstor s terms and conditions of use available athttp www jstor org about terms html jstor s terms and conditions of use provides in part that unless you have obtainedprior permission you may not download an entire issue of a journal or multiple copies of articles and you may use content inthe jstor archive only for your personal non commercial use please contact the publisher regarding any further use of this work publisher contact information may be obtained athttp www jstor org journals aea html each copy of any part of a jstor transmission must contain the same copyright notice that appears on the screen or printedpage of such transmission the jstor archive is a trusted digital repository providing for long term preservation and access to leading academicjournals and scholarly literature from around the world the archive is supported by libraries scholarly societies publishers and foundations it is an initiative of jstor a not for profit organization with a mission to help the scholarly community takeadvantage of advances in technology for more information regarding jstor please contact support jstor org http www jstor orgtue jun 26 16 25 17 2007

optimizing inventory s contribution to profitability in a regulated utility the averch johnson effect the averch johnson effect is a well known economic phenomenon through which regulated utility companies prefer a capital resource input combination that differs from an efficient level through dynamic network data envelopment analysis ndea this paper first investigates the existence of this effect on a dynamic input that is inventory the analysis was performed for a group of public electric utilities from 2005 to 2014 the result implies that these firms procure a significant extra amount in inventory materials and supplies beyond their efficient levels in order to explore the connection of this effect to profit motives we construct an analytical model of the inventory policy controlling the extra buying of material and supplies that will be inventoried and added to the firm s rate base the model is based on maximizing the net present value of total profits in the deterministic case two results are observed i the firm could achieve a finite optimum by adding a finite amount of inventory above the normal base level which assumes no impact of inventory on the rate hearing and ii the firm could theoretically achieve infinite optimum under the unconstrained model the primary contribution of this paper is the special case of extending typical inventory replenishment models to including the impact on prices and in turn profits in a regulated supply chain

booms and busts in the uk housing market the often volatile behaviour of uk house prices between 1957 and 1994 is analysed in an annual econometric model theory suggests that financial liberalisation of mortgage markets in the 1980s should have led to notable shifts in house price behaviour the evidence supports the predictions of theory suggesting shifts took place in wealth effects as in the consumption function and that real interest rates and income expectations became more important the presence of transactions costs suggests important nonlinearities in house price dynamics the paper also contains an explicit econometric treatment of expectations demography supply spillovers from the rented sector and of composition biases in the official house price index

use it or lose it teaching literacy in the economics principles course americans know little about economics recent surveys document shocking gaps in understanding of markets macroeconomic policy and the economics of government both the general public and college students including economics course takers do poorly on questions that check their knowledge in a gallup survey william b walstad and max larsen 1992 most knew that competitive prices are determined by supply and demand but 65 percent of the public and 43 percent of college seniors believed that during a crisis in the middle east government should prohibit oil companies from raising prices p 65 in a harris poll parade magazine 1999 only 58 percent of adults knew that people are likely to respond to a doubling in the relative price of beef by buying more poultry and less beef only one in three understood that those who borrow money at a fixed interest rate are most likely to benefit from inflation in a minneapolis federal reserve survey david fettig 1998 only 30 percent knew that government could reduce high inflation by decreasing spending and the money supply taking a high school or college economics course has little impact on economic understanding walstad and ken rebeck 2002 in a 15 question gallup survey of college seniors college economics course takers scored 9 highschool economics course takers scored 8 and those who took no economics scored 7 walstad and sam allgood 1999 there is hope test takers do better with questions that concern their day to day lives louis harris and associates 1999 and adults believe economics is important 88 percent want politicians to have a good understanding of economics and 96 percent think that basic economics should be taught in high school harris and associates 1999 while objections can be raised about what questions were asked and how they were worded national surveys administered by several respected firms support the same conclusion americans know little about economics

dynamic data envelopment analysis modeling intertemporal behavior of a firm in the presence of productive inefficiencies abstract this study extends data envelopment analysis dea to a dynamic framework our dynamic dea not only provides a measure of dynamic productive efficiency but can also be used as a nonparametric alternative to the econometric modeling of the intertemporal behavior of a firm

the state of economic education during the first fifty years of the american economic association aea its leaders considered the teaching of economics to be an important subject for discussion and debate aea founders set as a goal to educate public opinion about economic questions and economic literature elton hinshaw and siegfried 1991 p 373 during the last 50 years aea leaders have largely ceded questions on teaching to specialists in 1955 the association created the committee on economic education cee and charged it with improving the status of economic education within the profession stimulating and encouraging professional work on economic education and arranging economics education sessions at the aea meetings the association later revised the charge to include actively improving the quality of economic education at all levels from pre college to college adult and general economic education hinshaw and siegfried 1991 it is time to direct the attention of the entire profession not just economic education specialists toward the importance of educating a broad spectrum of the public about economics

a literature study for dea applied to energy and environment abstract this study systematically summarizes previous research efforts on data envelopment analysis dea applied to energy and environment in the past four decades including concepts and methodologies on dea environmental assessment industrial developments are very important for all nations in terms of their economic prosperities a problem is that the development produces various pollutions on air water and other types of contaminations all of which are usually associated with our health problems and climate changes thus it is necessary for us to consider how to make a balance between economic success and pollution mitigation to maintain a high level of social sustainability in the world it is widely considered that dea is one of the methodologies to examine the level of sustainability this study examines a recent research trend on dea applications from 1980s to 2010s nowadays many researchers have paid serious attention on how to combat various difficulties in the areas of energy and environment as a result the number of articles on dea applications on energy and environment has dramatically increased particularly after 2000s however it is true that dea has strengths and drawbacks in the applications therefore it is very important for us to carefully use dea for guiding large policy issues and business strategies such as the global warming and climate change an underlying premise of this study is that technology innovation in engineering and natural science may solve various problems by linking it with political and managerial efforts the use of dea provides a methodological linkage among them so enhancing the practicality in mitigating problems due to climate change and environmental pollutions this literature study along with a summary on conceptual and methodological developments provides us with guidelines for our future research works on dea on energy and environment issues

x inefficiency and interfirm rivalry evidence from the electric utility industry competition from the natural gas industry is shown to increase the efficiency of the work force of electric power utilities this conclusion is qualified to the extent that duopoly rivalry does not represent perfect competition in a free market as natural gas reserves decline however the impetus to improve efficiency will diminish but this will be offset by technological advances in both power generation and power transmission if regulators develop policies to encourage competitive interplay utility performance is more likely to improve 38 references 3 tables dck

unit root testing against an st mtar alternative finite sample properties and an application to the uk housing market a class of smooth transition momentum threshold autoregressive st mtar tests is proposed to allow testing of the unit root hypothesis against an alternative of asymmetric adjustment about a smooth nonlinear trend monte carlo simulation is employed to derive finite sample critical values for the proposed test and illustrate its attractive power properties against a range of stationary alternatives the empirical relevance of the st mtar test is highlighted via an application to aggregate house price data for the uk interestingly house prices are found to exhibit structural change characterized a fitted logistic smooth transition process with the newly proposed st mtar test providing the most significant results of the alternative smooth transition unit root tests available

dynamic efficiency measurement theory and application nonparametric dynamic measures of production efficiency are developed in the context of an adjustment cost technology and intertemporal cost minimization bounds on each efficiency measure are derived for each firm using a nonparametric revealed preference approach long run efficiency measures indicate the relative efficiency of both variable and dynamic factors while short run measures of efficiency indicate whether variable inputs are employed efficiently in the production process the efficiency measures are temporal in nature by describing the degree of efficiency of the firm at a particular point along its adjustment path the empirical implementation is illustrated for a balanced panel of pennsylvania dairy operators during 1986 1992

optimal ordering policies in response to a discount offer abstract sometimes supplier offers a temporary price discount to increase cash flow or decrease the inventory level of certain items thus the manufacturer may be able to improve the effectiveness of his inventory system by ordering a special quantity at this sale period in this paper economic order quantity eoq models with a discounted price are developed to obtain the optimal ordering policy during the sale period for five different cases a coincidence of sale period with replenishment time b non coincidence of sale period with replenishment time c sale period is longer than a cycle d discounted price as a function of the special ordering quantity and e incremental discount each case has its own characteristics of the sale period and the discounted price the objective is to take the maximum possible advantage from the discounted price by ordering a special quantity during the sale period the optimal ordering policy is obtained by maximizing the difference between the two costs regular eoq cost and special quantity cost during the sale period moreover a comparison of different discount scenarios is developed to sense the effect of different parameters on the ordering policies the annual gain obtained is linearly related to the discount and the on hand remnant inventory numerical analyses are provided to illustrate and testify the values of the optimal special quantity the analysis showed an impressive improvement in the effectiveness of the inventory system when a special order is placed during the sale period the optimal special quantity is driven for each case to visualize real life problems sensitivity analysis is also initiated to study the change in the total savings with respect to the variation of the special optimal quantity

effects of regulation on utility financing theory and evidence standing of these cross sectional variations might be afforded by the detailed examination of specific industry characteristics and their relationship to firms financing patterns the present study offers a methodology for approaching this issue the first step is to assemble joint theories of industry and financial structure in order to identify the ways in which changing industry conditions might be associated with changes in financing evidence on such simultaneous changes can then be examined in an attempt to identify the most plausible joint theory the methodology is used to investigate the effects of state commission regulation on the financing of electric utilities this is a natural candidate for study since regulation is such a salient feature of the industry in addition the regulatory system imparts some interesting special features to the very nature of utility capital structures inherent in all capital structures for example are opportunities for shifting wealth between bondholders and shareholders but under regulation these wealth shifting opportunities are expanded to encompass consumers as well finally the study of regulation has resulted in several relatively well specified theories of why regulation is imposed and what its observable effects should be in section i the different theories of capital structure and regulation are discussed and their joint implications are derived the capital structure theories include the perfect capital market theory the debt capacity theory and the financing hierarchy theory the regulatory theories include the public interest or market failure theory the political economy theory and the imperfect monitoring theory in section ii financing data from the early days of state commission utility regulation are used to try to distinguish

regulation of administered prices an empirical analysis of the microeconomics of price movement in finland 1972 77 curiously enough the concept of administered prices launched by gardiner means in his 1934 report to the u s secretary of agriculture still shows up in discussions on price policy and control today almost fifty years since it was coined and three decades after the discussion2 in which it should have been buried even more astonishing is the fact that its spin off administered inflation a term introduced by the kefauver committee in 1957 3 is still a part of economic language in some instances in the basic formulation that of means in 1935 administered prices are not assumed to be explicitly linked with market power but simply prices set by administrative action and held constant for a period of time means 12 p 78 although the hypothesis in this form was based on no economic reasoning of acceptable clarity it might still be accepted for the simple truism it is clearly some prices will change more seldom than others since for one thing costs of price changes will vary as is intuitively clear and as shown by sheshinski and weiss 17 pp 294 95 the optimal strategy of a firm in an inflationary environment will consist of longer intervals between successive price changes the higher the cost of such a change is under some very special assumptions risk aversion may also serve as an explanation to a decrease in the number of price changes relative to the number of changes in cost as indicated by the results of schramm and sherman 1 5 4 the administered inflation hypothesis as forwarded by means in his 1957 testimony before the kefauver committee means 12 pp 101 29 and by

an inventory control model with stochastic review interval and special sale offer abstract periodic review inventory models are widely used in practice especially for inventory systems in which many different items are purchased from the same supplier however most of periodic review models have assumed a fixed length of the review periods in practice it is possible that the review periods are of a random stochastic length this paper presents an inventory control model in the case of random review intervals and special sale offer from the supplier the replenishment interval is assumed to obey from two different distributions namely exponential and uniform distributions also shortages are allowed in the term of partial backordering for this model its convexity condition is discussed and closed form solutions are proposed

behavior of the firm under regulatory constraint a recent article by akira takayama discusses an earlier paper by harvey averch and leland l johnson on fair rate of return regulation of public utilities although takayama p 255 agrees with averch and johnson s general conclusions that a firm will tend to increase its investment with the introduction of an active constraint on its rate of return he criticizes the a j argument as being confusing ambiguous and in error takayama then attempts a clarification and presents a new formulation which leads to the a j result quoted above this comment will discuss several of takayama s criticisms in addition to showing that the so called a j effect cannot be derived from the basic assumptions made by both averch and johnson and takayama 1 we will show that the very assumptions used to prove the a j effect by defining the region of x require an assumption that the a j effect exists in the first place

the influence of the economic approaches to regulation on banking regulations a short history of banking regulations this article highlights the theoretical foundations of the regulations at work in the banking sector and examines their responsibility in the onset of the 2007 2008 financial crisis drawing a parallel between the main changes in banking regulations since the 1960s and the evolutions in the economic analyses of regulation over the same period it shows that the shift from the public interest theory of regulation that prevailed until the late 1960s towards the private interest theory of regulation accounts for the substitution of micro prudential regulations for macro prudential ones and explains a paradigmatic change in the conception of the regulatory instruments of the banking authorities it also shows that although the outcome of several factors the 2007 2008 crisis was also a consequence of the fact that the economic analysis of banking regulations supported micro prudential regulations that fail to take the global features and impact of banking activities into account and have proved unable to recommend effective solutions in a context of crisis

chalk and talk a national survey on teaching undergraduate economics reports on the desirable goals and characteristics of economics programs and reforms proposed to attain such programs e g w lee hansen 1991 hirschel kasper et al 1991 have ignored the issue of how economics is to be taught that is surprising because several popular trade books have recently appeared condemning teaching practices at american colleges and universities some of these books were written by economists e g martin anderson s 1992 impostors in the temple and used economics courses as notable examples of these problems long before these reports and books appeared the national council on economic education ncee together with the american economic association s aea committee on economic education began sponsoring programs to improve the teaching of economics and to promote innovative teaching methods in becker and watts 1995 we describe many of these improvements and explain how economists could use alternative teaching methods in different undergraduate courses until now however we could not provide data on how widely those approaches were used we do that here based on responses to a national survey

one time only incentives and inventory policies abstract this paper presents a review of the literature available on inventory policies under incentives on a one time only basis it is quite a common industrial practice to offer special incentives to motivate the buyer to order in larger than regular order quantities such special deals are available for a limited time only the literature on inventory policies under conditions of incentives has been classified by the nature of incentives such as price discount and credit period a situation of announced price increase which is very similar to price discount is also reviewed the policy implications of various scenarios are highlighted and areas of future research are identified

efficiency based rank assessment for electric power industry a combined use of data envelopment analysis dea and dea discriminant analysis da abstract this study discusses a combined use of dea data environment analysis and dea da discriminant analysis to determine the efficiency based rank of energy firms this type of performance evaluation is important because we often have a difficulty in accessing a large sample on energy firms to derive reliable empirical results the proposed approach is useful in dealing with such a limited number of energy firms often found in previous dea studies on energy industries in the world the proposed approach uses dea to classify energy firms into efficient and inefficient groups based upon their efficiency scores then it utilizes dea da to assess their efficiency scores and ranks in this stage we can find an adjusted efficiency score for each energy firm the proposed approach provides us with the following analytical capabilities all of which cannot be found in a conventional use of dea in assessing energy firms first the proposed dea approach can avoid zero in all multipliers on efficient energy firms by incorporating scsc strong complementary slackness condition so that it can handle an occurrence of multiple reference sets and multiple projections the dea result classifies all energy firms into efficient and inefficient groups second dea da applied to the two groups evaluates all energy firms by an industry wide evaluation not depending upon a limited number of efficient energy firms in a reference set as found in a conventional use of dea the analytical capability can reduce the number of efficient energy firms third the proposed approach can provide their efficiency based ranking scores finally we can conduct a rank sum test based upon their ranking scores to obtain a statistical inference as an application this study uses the proposed approach to examine the performance of japanese electric power industry we find two economic implications one of the two implications is that no major change has occurred in the operational performance of japanese electric power industry because of japanese sluggish economy from 2005 to 2009 the other implication indicates that there are strategic differences in the operation of japanese electric power firms after the liberalization

teaching modern macroeconomics at the principles level ideas taught at the macroeconomics principles level should satisfy two goals first they should be simple enough to be both understandable and memorable for the beginning student second they should be consistent both with the modem economy and with the macroeconomic models of this economy that are used in practice for policy evaluation there is no necessary conflict between these two goals the greater the consistency between the ideas taught in the classroom and the models used in practice the easier the ideas are to understand and the worthier they are of being remembered it would be an exaggeration to say that a consensus now exists in advanced research about how macroeconomics should evolve in the future debates continue for example about the usefulness of models with representative agents or what it means to have a fully articulated model of money nevertheless at the practical level a common view of macroeconomics is now pervasive in policyresearch projects at universities and central banks around the world this view evolved gradually since the rational expectations revolution of the 1970 s and has solidified during the 1990 s it differs from past views and it explains the growth and fluctuations of the modern economy it can thus be said to represent a modem view of macroeconomics 1 the purpose of this paper is to show how this modem macroeconomics can be taught at the principles level i focus on macroeconomic concepts including economic growth and fluctuations and their graphical representation rather than on techniques of delivery whether active learning experiments or the use of new media 2 the teaching ideas are similar to those used by david romer 2000 and taylor 1998 but the purpose of this paper is to show how closely they represent modern macroeconomics

capital vintage time trends and technical change in the electric power industry beginning with tinbergen in 1942 economists have employed a time trend in cost or production functions to represent the rate at which new technology is introduced into the production unit in sufficiently flexible models of the production process the time trend may be used to obtain estimates of the rate as well as direction of technical change the use of the time trend is generally defended on pragmatic grounds as no theoretical justification exists for assuming that new technology is introduced at a steady rate that is independent of a firm s investment in r d education capital of a more recent vintage etc in recent years alternatives to the traditional time trend have been sought to represent the rate at which new technology is introduced research in this area has been concentrated in the telecommunications industry where the stock of r d or the percentage of calls completed by direct dialing or modern switching facilities have been employed as technological indices by nadiri and schankerman 32 denny et al 14 and christensen et al 7 the latter two studies indicate that explicit technological indices provide a better representation of the pace of innovation than the time trend this conclusion must remain tentative however as it is not possible to determine what is the true direction of technical change in these studies this shortcoming is overcome in a recent study by kopp and smith 24 who compare the performance of time trends and explicit technological indices in a study using pseudo data generated by process analysis models their results unambiguously support the use of technologically explicit indicators of technical change and indicate that the use of a time trend may not provide a consistent estimate of the direction of technical change this study does not however shed any light on the ability of a time trend to accurately reflect the rate of technical change the purpose of this study is to investigate the effects of alternative technological indices on the estimated rate and direction of technical change in the electric power industry the performance of a time trend is compared with that of a vintage index computed as the average age of a firm s steam generating capacity this latter index is consistent with the notion that new technology is embodied in newly constructed capital an assumption sup

cost efficiency of electric grid utilities in china a comparison of estimates from sfa mle sfa bayes and stoned cnls with the purpose of estimating the range of cost efficiency levels of the power grid sector in china we assembled a data set including 23 provincial power grid companies spanning from 2005 to 2009 and conducted an empirical study based on the sfa mle sfa bayes and stoned cnls methodologies empirical results show that the average values of efficiency from different models vary from 0 85 to 0 92 depending especially on the assumptions underlying inefficiency content further results demonstrate that there is exogenous technical progress during the sample period and per capita gdp of the province is negatively related to the costs of the electric grid company located in the corresponding province we hope this empirical study will contribute to the debate on an efficiency based regulation scheme which was introduced to the chinese electric grid sector on a pilot base in 2014

service quality in the electricity industry the role of privatization and managerial behavior abstract this paper analyzes the relationship between privatization and service quality in the electricity industry and tests the hypothesis that managerial behavior is a significant intervening factor the sample includes 31 italian distributors over the period 1998 2004 their quality performance is represented by continuity of supply an aspect of quality that is both contractible and regulated results of the empirical analysis suggest that the transfer of shareholdings to private investors does not lead to quality degradation the results also suggest that managerial dominance translates into a reduction in supply quality this effect is likely to be particularly strong for public sector utilities

national voluntary content standards for pre college economics education after economics was included in the goals 2000 educate america act in 1994 the national council on economic education ncee constructed a coalition of organizations to write voluntary content standards to guide economics instruction in american schools the coalition includes representatives from the ncee and its network of affiliated councils and centers the national association of economic educators the foundation for teaching economics and the american economic association s committee on economic education the goal of the coalition is to write content standards for the teaching of economics in grades 1 12 such standards as developed for other disciplines are not standards in the usual use of the word rather than identifying required performance levels on specified criteria these standards specify the criteria as such the standards consist of what economists usually call principles they are in fact the fundamental propositions of economics to avoid confusion among teachers however the standards writing committee calls these principles standards national disciplinary content standards are not mandates from the federal government rather they are a resource for states and local school districts for individual schools and for teachers who are responsible for specifying and integrating the curriculum into their schools content standards have public good characteristics they are nonrivalrous in consumption and it is difficult to preclude access to them in addition their production relies on fixed development costs rather than variable reproduction costs implying substantial scale economies to develop similar standards at the state or local level would duplicate efforts consequently there is a case as is argued in standard 16 for collective provision of national standards there is a practical reason to develop national economics content standards as well without these standards some states may omit economics from their curriculum entirely some may give economics cursory attention or write vague standards that are difficult to implement or focus their economics standards on insignificant content some curriculum designs may include other subjects e g personal finance business or marketing under the economics rubric thereby marginalizing economics voluntary national standards increase the probability that economics is included in school curricula without them economics risks the prospect of being dropped from the curriculum teachers responsible for economics instruction are often overwhelmed when asked to teach a subiect in which they have little t discussants cecilia conrad pomona college w lee hansen university of wisconsin robert highsmith pace university

time of use pricing for load management programs in taiwan power company load management programs have been actively performed by the utilities to reduce peak demand and improve system load factor in recent years the time of use tou tariff based on the peak load pricing theory has been one of the most effective load management strategies proper tou rate structure can actually reflect the generation cost of electricity supplying and give a guideline for customers to modify the power consumption pattern so that the system load factor can be improved the inverse electricity pricing rule can be applied as the basis of tou pricing in this paper the price elasticities of industrial customers of taipower system are solved by the statistical regression model with 2620 data samples

changing productive efficiency in telecommunications in the united states abstract the issue explored is whether incentive regulation in the telecommunications industry in the united states has resulted in an increase in productive efficiency after providing an overview of the nature of incentive regulation the methodology for measuring the effects of incentive regulation on productive efficiency is reviewed this methodology is data envelopment analysis dea and allows for the measurement of both technical efficiency and allocative efficiency of individual local exchange carriers the results of empirically implementing the dea approach indicate that in the aggregate there is little change in technical efficiency in fact average technical efficiency in 1989 was the same as in 1998 next while outputs continued to grow at about their historical rate across lecs the sizeable increase in the two types of capital increased inputs well above their historical average rates for some lecs leading to short run allocative inefficiency on average however allocative efficiency shows no identifiable trend between 1988 and 1998 finally in the aggregate total economic efficiency what incentive regulation in the telecommunications industry in the united states was designed to promote does not have a demonstrable trend between 1988 and 1998

regulated equity returns a puzzle abstract based on a database of u s electric utility rate cases spanning nearly four decades the returns on equity authorized by regulators have exhibited a large and growing premium over the riskless rate of return this growing premium does not appear to be explained by traditional asset pricing models often in direct contrast to regulators stated intent we suggest possible alternative explanations drawn from finance public policy public choice and the behavioral economics literature however absent some normative justification for this premium it would appear that regulators are authorizing excessive returns on equity to utility investors and that these excess returns translate into tangible profits for utility firms

the multiproduct firm quality choice and regulation a monopolist facing a market of heterogeneous consumers will distort the quality a rray this paper explores three regulatory remedies minimum quality s tandards mqs maximum price regulation mpr and rate of return re gulation rorr that can counteract this distortion mqs and mpr rais e the quality offered to consumers with a low willingness to pay for quality while mqs have no effect on the quality offered to consumers with a high willingness to pay mpr decreases the quality offered to this group if production of high low quality goods is capital i ntensive rorr increases decreases the quality offered to both grou ps copyright 1988 by blackwell publishing ltd

pricing efficiency under rate of return regulation some empirical evidence for the electric utility industry the authors test quasi optimal pricing rules for rate of return regulation for a sample of electric utilities they estimate the regulated cost function and demand equations by class of customer for the sample to yield the cost and demand parameters required to assess the utility rate structures the results indicate that the price structure of electricity by class of customer is not quasi optimal and that welfare improvement might be possible under alternative prices searching for the price structure which satisfies the criteria they find that commercial users rates have been too high relative to residential and to a lesser extent industrial rates they note that commercial uses tend to be less organized and more poorly represented in the rate making process 16 references 8 tables

regulatory restructuring and incumbent price dynamics the case of u s local telephone markets prior to the telecommunications act of 1996 many u s states restructured their regulatory framework by replacing rate of return regulation with competition in both the local exchange service and local long distance markets and adopting price regulation price caps and price freezes using a panel data set of incumbent firm prices for three services i investigate whether price regulation and differences in entry conditions affect incumbent operators rate structures i find that competition has prompted a significant amount of rate rebalancing by reducing the amount of cross subsidization present in local telephone markets in addition the added flexibility of price cap regulation speeds the rate rebalance effects of competition

a risk tolerance analysis for a joint price differentiation and inventory decisions problem with demand leakage effect abstract price differentiation is a commonly used practice in revenue management rm to improve a firm s profitability however most studies in the literature have considered a risk neutral firm to demonstrate the benefits of price differentiation the main contribution of this paper is in considering several important objectives while determining the optimal product prices and order production quantities for a risk adjusted firm with demand leakage effects in the presence of a price dependent stochastic demand the objectives considered include the maximization of a firm s expected profit and maximizing the probability of exceeding the risk adjusted expected revenue closed form expressions for optimal product prices and production quantities are derived for several of these objectives a numerical study is also presented to calibrate the impact of a firm s risk tolerance and other factors such as demand leakage market demand variability on the firm s profitability and its optimal decision

what students remember and say about college economics years later in his presidential address to the american economic association george stigler 1963 offered the provocative hypothesis that students would retain very little knowledge from principles courses in economics five years or more after taking the courses the few empirical studies that have been published on this topic generally found no or small lasting effects at least for those who took fewer than four courses see e g g l bach and phillip saunders 1965 gerald j lynch 1990 that raises even broader questions about the long term effects of studying economics in college in terms of individuals behavior as consumers workers and voters which we are now beginning to investigate using both survey and transcript data we have two major goals in this study first we want to learn how students perceive their classroom experience in economics courses years after leaving school both in absolute terms and compared to other courses they took we drew samples of economics business and other majors who attended our four universities in 1976 1986 and 1996 and asked which topics regularly covered in economics courses they now viewed as being most and least important we asked whether they now viewed the economics courses they took as interesting important too difficult or too abstract we also compared their perceptions of teaching methods and grading rigor in economics courses to those developed in other courses our second major goal represents an empirical test of the common claim that economics is a unique way of thinking if it is we might reasonably expect people with more training in economics to have different views on policy issues and to make different decisions as consumers workers savers investors and voters we collected survey data on many of these choices and by matching those responses with transcript data we plan to investigate whether there are observable behavioral responses associated with being an economics major or simply taking some minimum number of economics courses compared to students who took fewer courses or none at all there are other uses for these data they can likely be used to study choice of major and course taking behavior as well as common laboreconomics issues such as human capital versus screening in the labor market certainly the data can provide insight into curriculum development for economics departments and business schools as well there is obviously the potential for response biases in the analysis of these data but we expect that having transcript data for respondents and nonrespondents will allow us to deal with these issues econometrically this first brief report from this ongoing project addresses only the first goal of the project specifically how our former students evaluate their experience with economics courses and instructors what economic courses and concepts do they now believe are most important do they wish they had taken more or less coursework in economics what do they think now about various economic issues and allgood department of economics university of nebraska lincoln ne 68588 e mail sallgood unlnotes unl edu bosshardt department of economics florida atlantic university boca raton fl 33431 e mail wbosshar fau edu van der klaauw department of economics university of north carolina chapel hill nc 27599 e mail vanderkl email unc edu watts department of economics purdue university west lafayette in 47907 and while this paper was written the german international school of management and administration hanover germany e mail mwatts mgmt purdue edu we thank the board of the calvin k kazanjian economics foundation for the grant that made this work possible and the aea committee for economic education for bringing us together to write the proposal as described in michael salemi et al 2002 mike salemi provided helpful comments on an earlier draft of this paper april fidler provided major assistance in project coordination administration and data entry georg schaur worked extensively with data organization and preliminary tabulations

product complementarities capabilities and governance a dynamic transaction cost perspective the organization and governance of the transactions that comprise a bundling arrangement depend on the distribution of capabilities among firms and the amount of time during which the window of opportunity for earning rents is expected to remain open firms engaged in inter firm collaboration must undertake support transactions related to billing marketing customer support and product repair these support transactions differ from the core transactions that have traditionally been perceived as sufficient to provide a product bundle since support transactions create costs of their own the market may turn out to be an expensive means of governing collaborative arrangements undertaken for bundling purposes the telecommunications service sector provides an illustration copyright 1997 by oxford university press

are house prices in south africa really nonstationary evidence from spsm based panel kss test with a fourier function this study applies the sequential panel selection method spsm to investigate the time series properties of provincial house prices for entire large medium and small middle segments of south africa quarterly time series data were collected from nine provinces in south africa for different house size categories over the period of 1978 q1 to 2012 q4 whereas other panel based unit root tests are joint tests of a unit root for all members of a panel and are incapable of determining the mix of integrated of order zero i 0 series and integrated of order one i 1 series in a panel setting the spsm proposed by chortareas and kapetanios 2009 can clearly identify how many and which series in the panel are stationary processes by classifying a whole panel into a group of stationary and nonstationary series the empirical results from several panel based as well as standard pure time series unit root tests indicate that house prices for the nine provinces studied here are either stationary or nonstati

the adoption of incentive regulation and its effect on technical efficiency in telecommunications in the united states abstract incentive regulation has become an important regulatory tool in the telecommunications industry in the united states the issue explored here is whether incentive regulation has resulted in an increase in efficiency after providing an overview of the nature of incentive regulation a methodology for measuring technical efficiency and its change is introduced this is a multiple output multiple input distance function approach to measuring technical efficiency the results of implementing this approach for 19 local exchange carriers for the 1988 1999 period indicate that in the production of local service intrastate toll access service and interstate access to local loops there was no change in technical efficiency between the 1988 1990 period and the 1991 1999 period something that incentive regulation was specifically designed to promote

an economic order quantity model with partial backordering and a special sale price abstract a constant unit purchase cost is one of the main assumptions in the classic economic order quantity model in practice suppliers sometimes offer special sale prices to stimulate sales or decrease inventories of certain items in this paper we develop an eoq model with a special sale price and partial backordering we prove the convexity of the cost reduction function if a special order is placed at the special sale price a solution method is proposed and numerical examples are presented

inventory management with asset based financing most of the traditional models in production and inventory control ignore the financial states of an organization and can lead to infeasible practices in real systems this paper is the first attempt to incorporate asset based financing into production decisions instead of setting a known exogenously determined budgetary constraint as most existing models suggest we model the available cash in each period as a function of assets and liabilities that may be updated periodically according to the dynamics of the production activities furthermore our models allow different interest rates on cash balance and outstanding loans which is an enhancement over most traditional models in that inventory financed by a loan may be more expensive than that by out of pocket cash we demonstrate the importance of joint consideration of production and financing decisions in a start up setting in which the ability to grow the firm is mainly constrained by its limited capital and dependence on bank financing we then explain the motivation for asset based financing by examining the decision making at a bank and a set of retailers in a newsvendor setting