short run price and income elasticity of gasoline demand evidence from lebanon abstract we empirically estimate the demand for gasoline in the presence of multiple shifts caused by structural breaks using monthly data from lebanon covering the period 2000 m1 2010 m12 consistent with most studies in the literature our study reports that gasoline is price and income inelastic in the short run however when a single and multiple breaks are introduced the consumers responsiveness to gasoline price and income increase since both price and income elasticity are sensitive to structural changes a policy that pleads for a flat excise tax may not be optimal with respect to either the cyclical pattern of government revenues or the internalization of international environment standards

on strategic community development this paper examines strategic behavior of developers who through offering different congested public good packages and revenue fiscal schemes compete for residents who are differentiated by income there is an endogenous determination of numbers and sizes of communities developers have an incentive to strongly differentiate their public good offerings in terms of pricing strategies developers exhibit sharply contrasting behaviors in low income communities housing consumption is subsidized once lots are priced in high income communities housing consumption is generally taxed

on the pricing strategy of a land developer this paper examines the pricing strategy of a developer facing potential clients heterogeneous in income two part pricing and second degree discriminatory pricing strategies are characterized our results include the fact that the developer chooses either to charge a positive entry fee and a unit housing price above cost or to charge linear pricing of housing depending on the share of housing in individual consumption as well as on the quality level of public services second degree discriminatory pricing improves upon the ability of the developer to exploit high income consumers c 1999 academic press

snobbery racism or mutual distaste what promotes and hinders cooperation in local public good provision a political jurisdiction may decide to cooperate in public schooling provision with its neighbors or remain independent the determinants of the consolidation decision are compared for the richer and the poorer and for the whiter and the less white jurisdiction in each potential consolidation pair property values and scale economies matter most however poorer jurisdictions prefer merging with richer ones that are less white than themselves whiter jurisdictions prefer to consolidate with less white ones of similar income less white jurisdictions are more open to consolidation with whiter ones if their incomes differ in either direction traditional club theory predictions are not supported

the individual travel cost method with consumer specific values of travel time savings the treatment of the opportunity cost of travel time in travel cost models has been an area of research interest for many decades our analysis develops a methodology to combine the travel distance and travel time data with respondent specific estimates of the value of travel time savings vtts the individual vtts are elicited with the use of discrete choice stated preference methods the travel time valuation procedure is integrated into the travel cost valuation exercise to create a two equation structural model of site valuation since the travel time equation of the structural model incorporates individual preference heterogeneity the full structure model provides a travel cost site demand model based upon individualized values of time the methodology is illustrated in a study of recreational birdwatching more specifically visits to a stork village in poland we show that the usual practice of basing respondents vtts on 1 3 of their wage rate is largely unfounded and propose alternatives including a separate component of the travel cost survey aimed at valuation of respondents vtts or as a second best asking if they wish if their journey was shorter and for those who do use full hourly wage as an indicator of their vtts

willingness to pay attitudes and fundamental values on the cognitive context of public preferences for diversity in agricultural landscapes abstract our study set out to investigate if and how willingness to pay both hypothetical and actual might reflect individuals wider cognitive networks we draw on the idea of cognitive hierarchies i e the notion that concrete preferences and attitudes are embedded in networks of more abstract beliefs and values and explore if willingness to pay wtp as expressed through contingent valuation can be understood as part of such hierarchies to this end we elicited stated and actual wtp in a survey of public preferences and attitudes towards the establishment of an agri environmental payment scheme in northeim germany that rewards farmers for the provision of riparian buffer strips two main findings emerged from the study first only a very small proportion of those stating positive wtp did actually transfer the money second contrary to our hypotheses results from a structural equation model suggest that stated wtp was only poorly connected to attitudes towards the payment scheme and other potentially relevant more abstract beliefs and values this casts doubts on the meaningfulness of such statements of the ten different fundamental value types included only universalism and conformity played a significant role in the cognitive hierarchy and informed generalised environmental beliefs as well as attitudes towards the payment scheme as attitudes seemed to be better integrated in the cognitive network than wtp we discuss if surveys of public preferences should rely on attitude statements rather than solely on monetary values

the contingent valuation and the travel cost methods applied to mucubaji lake area natural resources and environmental services act as characterized public goods because they are sources of direct utility without any associated market with related prices for instance the recreational services of the natural parks are guaranteed to the visitors by an entrance payment ticket the contingent valuation method and the travel cost method are used to define the variables referred to the visitors every season time and willingness to pay wtp in the mucubaji lake area the wtp average rose from bs 5 612 68 to bs 8 625 00 when the services were improved to the visitors it was found that travel costs have a negative impact on the expected demand for trips to the mucubaji lake area travel costs to an alternate site impact positively on that demand besides female people and independent occupation have a big expected demand for every trip to the natural park

on the taxation of polluting products in a differentiated industry this paper studies the provision of environmental quality in an imperfectly competitive market it uses a vertical differentiation model in which the free entry equilibrium results in an under provision of quality the following main results are obtained first a commodity tax may have a significant impact on the market structure in this setting it tends to increase the number of active firms second through its impact on market structure a commodity tax may be welfare improving even though quality creates a positive externality third a commodity tax may bring about an equilibrium that is arbitrarily close to a pareto efficient allocation

what s to know about hypothetical bias in stated preference valuation studies abstract hypothetical bias arises in stated preference valuation studies when respondents report a willingness to pay wtp that exceeds what they actually pay using their own money in laboratory or field experiments although this bias is not found in all stated preference surveys hypothetical wtp typically exceeds the actual value by a factor of two to three unfortunately there is no widely accepted general theory of respondent behaviour that explains hypothetical bias therefore two meta analyses are reviewed to test current hypotheses regarding the causes of this overstatement of wtp and the associated recommendations to mitigate the bias suggestions for future research are made including the development of a general theory

hedonic onsight cost model of recreation demand for many recreational activities onsite pecuniary costs can be a significant portion of the cost of a recreational trip onsite expenditures however often depend upon endogenous quality choices made by the household we formulate a recreation demand model that formally accounts for household selection of quality of onsite time household behavior is constrained by income prices and the onsite hedonic price schedule assuming complete optimization a reduced form marshallian demand curve for recreation trips still results and a specialized version of roy s identity provides a basis for welfare analysis instrumenting for endogenous quality choices does not improve demand estimation

on the political economy of zoning abstract households choose a community in a metropolitan area and collectively set a minimum housing quality and a property tax to finance a local public good the collective imposition of a lower bound on housing consumption induces an income stratified equilibrium in a specification where meaningful community differentiation would not arise without zoning we show computationally that zoning restrictions are likely to be stringent with a majority facing a binding constraint in communities that permit it by inducing a stratified equilibrium zoning causes tiebout welfare gains in aggregate but with large welfare transfers relative to stratified equilibrium without zoning the zoning equilibrium is significantly more efficient as it reduces housing market distortions

services outsourcing and innovation an empirical investigation we provide a comprehensive empirical analysis of the links between international services outsourcing domestic outsourcing profits and innovation using plant level data we find a positive effect of international outsourcing of services on innovative activity at the plant level such a positive effect can also be observed for domestic outsourcing of services but the magnitude is smaller this makes intuitive sense as international outsourcing allows more scope for exploiting international factor price differentials therefore giving the establishment higher profits and more scope to restructure production activities towards innovation we also find that international outsourcing has a positive effect on profitability as predicted by theory while this is not true for domestic sourcing the results are robust to various specifications and an instrumental variables analysis

will most of us be working for giant enterprises by 2028 abstract various economic theories yield quite opposite predictions about the changing size of enterprises and establishments and the purpose of this essay is to present some stylized facts to begin to resolve some of these theoretical confusions the estimates for this purpose cover a period of almost four decades they show that average establishment size has decreased since the late 1960s that the number of establishments per enterprise has leveled off since the early 1980s and that the average size of enterprises reveals an undulating pattern with a sharp upturn at the end of the century due to the impact of the merger wave considerable attention is paid to the causal factors underlying these changes particular in reference to the conflicting theoretical evidence

interjurisdictional housing prices in locational equilibrium abstract in this study we discuss how to construct interjurisdictional housing price indexes that are consistent with locational equilibrium theory in theoretical models housing is assumed to be homogeneous which provides problems in empirical analysis we provide conditions that allow us to treat heterogeneous housing as if it were homogeneous the same conditions that allow us to develop a quantity index for housing also imply that we can estimate interjurisdictional housing price indexes using hedonic price regressions locational equilibrium models impose a number of restrictions regarding the co movement of housing price indexes local public goods and mean income levels we propose to use these properties of locational equilibrium models to evaluate the different price index estimates we estimate a variety of price indexes using a unique panel data set of housing transactions in southern california our empirical results by and large support our approach

sparkling wine choice from supermarket shelves the impact of certification of origin and production practices we report the results of a study based on revealed and stated preference data on choice of prosecco wines in retail stores close to the origin of production in northern italy emphasis is placed on ability to reconcile the utility structure of stated preference data with that underlying revealed preference data we extend the analysis to cover nonattendance of key attributes such as price and certification of origin while controlling for the large range of brand effects

combining revealed and stated preference data to estimate the nonmarket value of ecological services an assessment of the state of the science this paper reviews the marketing transportation and environmental economics literature on the joint estimation of revealed preference rp and stated preference sp data the rp and sp approaches are first described with a focus on the strengths and weaknesses of each recognizing these strengths and weaknesses the potential gains from combining data are described a classification system for combined data that emphasizes the type of data combination and the econometric models used is proposed a methodological review of the literature is pursued based on this classification system examples from the environmental economics literature are highlighted a discussion of the advantages and disadvantages of each type of jointly estimated model is then presented suggestions for future research in particular opportunities for application of these models to environmental quality valuation are presented

firm size and efficiency in innovation comment on van dijk et al van dijk et al found different results for some variables explaining the large small firm innovation advantage in a number of acs and audretsch publications their own research adds to this variety however the differences van dijk et al found between the acs and audretsch studies can be largely attributed to specification and sample differences the same applies to the observed differences between acs and audretsch and van dijk et al

empirical research on the different innovation engine between china and us manufacturing using an improved method abstractmost studies arrive at controversial conclusions about the relationship between firm size and technological innovation industrial differences and subjective model design are generally considered the primary cause in static comparisons across industries dynamic industrial changes are ignored but this might lead to differing results when attempting to identify the driving forces of evolutionary change in an industrial environment this study applies nonparametric regression methods with an expansive industry grouping to overcome the industry difference interference and empirical model error typifying traditional studies first a comparative analysis of the forces driving us and chinese manufacturing is performed results indicate that us and chinese manufacturing are in different industrial growth stages chinese manufacturing takes the traditional elements and r d input as its main driving factors which require objectively expansive scale of enterprise therefore showing characteristic schu

consumer willingness to pay for safer vegetables in urban markets of a developing country the case of kale in nairobi kenya abstract the rapid urban population growth rising level of urban poverty and problems with food supply and distribution systems have increased the importance of developing local supplies of perishable produce of safe and good nutritional value in developing countries this examination of consumer preferences for food safety across major urban fresh vegetable market categories revealed that the explanations behind purchase intentions were market segment specific there is a need to target agricultural policies relating to handling practices and for public health policies to be more differentiated in promoting food safety

firm size opportunities for adaptation and in house r d activity in developing countries the case of indian manufacturing abstract this paper employs probit and tobit models to analyse the determinants of probability of undertaking r d activity and the intensity of r d expenditures for a sample of 291 indian manufacturing firms the empirical findings suggest that the probability of undertaking r d increases with the firm size only up to a certain level while r d intensity increases with it linearly competitive pressures export orientation and vertical integration influence the firms inclination to undertake r d favourably the technology imports r r relation is not dominated by either substitution or complementarity firms in chemicals and capital goods industries appear to attach greater importance to r d because of opportunities available to them for adaptation

a meta analysis of the price elasticity of gasoline demand a sur approach abstract automobile gasoline demand can be expressed as a multiplicative function of fuel efficiency mileage per car and car ownership this implies a linear relationship between the price elasticity of total fuel demand and the price elasticities of fuel efficiency mileage per car and car ownership in this meta analytical study we aim to investigate and explain the variation in empirical estimates of the price elasticity of gasoline demand a methodological novelty is that we use the linear relationship between the elasticities to develop a meta analytical estimation approach based on a seemingly unrelated regression sur model with cross equation restrictions this approach enables us to combine observations of different elasticities and thus increase our sample size furthermore it allows for a more detailed interpretation of our meta regression results the empirical results of the study demonstrate that the sur approach leads to more precise results i e lower standard errors than a standard meta analytical approach we find that with mean short run and long run price elasticities of 0 34 and 0 84 respectively the demand for gasoline is not very price sensitive both in the short and the long run the impact of a change in the gasoline price on demand is mainly driven by responses in fuel efficiency and mileage per car and to a slightly lesser degree by changes in car ownership furthermore we find that study characteristics relating to the geographic area studied the year of the study the type of data used the time horizon and the functional specification of the demand equation have a significant impact on the estimated value of the price elasticity of gasoline demand

willingness to pay for green power in an unreliable electricity sector part 1 the case of the lebanese residential sector abstract a willingness to pay wtp analysis for renewable based electricity is undertaken for the lebanese residential sector a survey of 600 samples was conducted based on a stratified random sampling method in which energy use and expenditures socioeconomic and demographic characteristics were collected four scenarios for wtp for green power were designed to best reflect the possibilities of integrating renewable energy re sources in lebanon s unreliable electricity sector 1 local system covering partial electricity needs 2 local system covering entire electricity needs 3 utility provided green power covering partial electricity needs and 4 utility provided green power covering entire electricity needs the results based on a tobit model highlight the importance of re options that displace completely the diesel generator sets i e options 2 and 4 other parameters such as ownership of the home age perception of trust in government institutions and awareness of re were also found significant in influencing wtp

a difficulty with the travel cost method instead of observable prices of recreational visits travel cost method tcm re searchers are obliged to substitute researcher assigned visitation cost estimates i argue that visitation costs are inherently subjective but are ordinally measurable so long as the cost in creases with distance travelled it follows that traditional tcm yields only ordinally measur able welfare estimates the household produc tion function formulation of tcm resolves this problem only by imposing severe and un testable analytical restrictions tcm cannot serve as a stand alone technique for estimating recreation benefits rather it must be calibrated using information generated with fundamentally different methods jel q26

willingness to pay for quality improvements comparative statics and interpretation of contingent valuation results this paper extends variation function theory by examining the effects of changes in prices quality and income on willingness to pay for quality change comparative static effects are found for both on site users and nonusers of the resource these results are used to interpret contingent valuation empirical models for example the substitution and complementary relationships between trips to natural resource sites can be identified this paper also suggests tests for comparison of contingent valuation with recreation demand models and other tests of validity

fuel taxes an important instrument for climate policy abstract this article shows that fuel taxes serve a very important role for the environment and that we risk a backlash of increased emissions if they are abolished fuel taxes have restrained growth in fuel demand and associated carbon emissions although fuel demand is large and growing our analysis shows that it would have been much higher in the absence of domestic fuel taxes people often assert that fuel demand is inelastic but there is strong research evidence showing the opposite the price elasticity is in fact quite high but only in the long run in the short run it may be quite inelastic which has important implications for policy makers had europe not followed a policy of high fuel taxation but had low us taxes then fuel demand would have been twice as large hypothetical transport demand in the whole oecd area is calculated for various tax scenarios and the results show that fuel taxes are the single most powerful climate policy instrument implemented to date yet this fact is not usually given due attention in the debate

estimating the supply and demand of gasoline using tax data abstract we estimate supply and demand functions for the u s gasoline market using information from excise tax returns provided by the irs for the period 1990 2009 we find price and income elasticities of demand similar to those found using eia data we find a price elasticity of supply of 0 29 which differs from the common assumption of a perfectly inelastic short run supply curve by using a novel data source the analysis provides a robustness check of aggregate studies of gasoline demand and a consistent econometric estimate of the price elasticity of gasoline supply the results are useful in guiding tax and regulatory policies regarding gasoline consumption

firm siz and efficiency in inovation reply economic activity moved away from large firms to small predominantly young firms in the 1970s and 1980s acs and audretsch 1993 and carlsson 1992 show evidence of manufacturing industries in countries in varying stages of economic development carlsson mentions two explanations for this shift the first deals with fundamental changes in the world economy from the 1970s onwards these changes relate to the increase of global competition the rising degree of uncertainty and the growth in market fragmentation the second deals with changes in the character of technological progress he shows that flexible automation has various effects resulting in a shift from large to smaller firms the pervasiveness of these changes results in a structural shift which affects the economies of all industri

international passenger transport and climate change a sector analysis in car demand and associated co2 emissions from 2000 to 2050 abstract the paper provides global regionalized projections of passenger car demand use and associated co 2 emissions from 11 world regions the study is based on empirical data that have been originally collated from international sources for the purpose of modeling region specific car stock demand derived demands serve as indicator of car related fuel consumption and associated co 2 emissions which are calculated on the basis of behavioral and technological scenarios the obtained co 2 emission paths are sectoral baseline scenarios that identify region specific potentials of growth in car induced co 2 emissions assuming that current trends continue to prevail the study adopts a multi model approach to car demand by applying two methodologies rooted in the economics of consumption utility maximization and single equation models the utility maximization method for modeling car demand is driven by the preferences of the representative consumers of each world region subject to exogenous price and income trajectories the latter is adopted from an optimal growth model this is a novel approach to projecting global regionalized sectoral car demands the study is complemented by the application of single equation income consumption models based on logistical gompertz functions and non linear regression techniques to compare model results

the demand for road diesel in canada abstract in this paper we estimate the demand for road diesel in canada using aggregate annual data for the period 1986 2008 using a partial adjustment model pam we find short and long run price elasticities of 0 43 and 0 8 respectively however using cointegration techniques we obtain price elasticities that are 30 to 50 lower the short run elasticity with respect to gdp per capita is evaluated at 0 5 with the pam and 1 55 with cointegration in the long run both estimation techniques indicate an income elasticity around 0 9 our results underline the importance of controlling for the expansion of the primary sector which has been characterizing the canadian economy in the 2000s

are stated preferences confirmed by purchasing behaviours the case of fair trade certified bananas in switzerland as the market share of fair trade food products in countries of the north grows understanding consumer preferences with regard to this recent label is becoming increasingly important this article reports on a test of the consistency of consumers stated preferences for which a survey was conducted at the place and time of actual purchase decisions the aim of the survey was to further improve the understanding of consumers stated motivations for buying fair trade and organic fair trade bananas in switzerland hypothetical questions with double dichotomous choices were used to compare two types of bananas conventional and labelled and to assess the average stated willingness to pay wtp for fair trade labelled bananas the results show that fair trade is largely accepted in switzerland and that the premium for purchasing such products is influenced by age the number of young children and the perception of the fair trade label i then used a comparative test of field observations and stated preferences for bananas to measure inconsistency in choices this comparison reveals that less than one fifth of the answers are in principle inconsistent these results point to the importance of confidence in the fair trade labels if consumers purchases are to increase

improving environmental valuation estimates through consistent use of revealed and stated preference information abstract environmental valuation data from stated and revealed preference methods are integrated into a unified model of preferences for environmental quality improvement that identifies the use and nonuse components of the total value estimate this articulates clearly what parts of the total value estimate come from each type of data and permits tests of whether estimated preferences satisfy weak complementarity between the environmental good of interest and related private goods the statistical advantages of using more information for the valuation problem are exploited while retaining flexibility to identify value estimates from any individual method of analysis

combining revealed preference data with stated preference data a latent class approach a substantial literature exists combining data from revealed preference rp and stated preference sp sources aimed either at testing for the convergent validity of the two approaches used in nonmarket valuation or as a means of drawing on their relative strengths to improve the ultimate estimates of value in doing so it is assumed that convergence of the two elicitation approaches is an all or nothing proposition i e the rp and sp data are either consistent with each other or they are not the purpose of this paper is to propose an alternative framework that allows for possible divergence among individuals in terms the consistency between their rp and sp responses in particular we suggest the use of a latent class approach to segment the population into two groups the first group has rp and sp responses that are internally consistent while the remaining group exhibits some form of inconsistent preferences an em algorithm is employed in an empirical application that draws on the alberta and saskatchewan moose hunting data sets used in earlier combined rp and sp exercises the empirical results suggest that somewhere between one third and one half the sample exhibits consistent preferences we also examine differences in welfare estimates drawn from the two classes

an analysis of gasoline demand elasticities at the national and local levels in mexico abstract the majority of evidence on gasoline demand elasticities is derived from models based on national data since the largest growth in population is now taking place in cities in the developing world it is important that we understand whether this national evidence is applicable to demand conditions at the local level the aim of this paper is to estimate and compare gasoline per vehicle demand elasticities at the national and local levels in mexico national elasticities with respect to price income vehicle stock and metro fares are estimated using both a time series cointegration model and a panel gmm model for mexican states estimates for mexico city are derived by modifying national estimates according to mode shares as suggested by graham and glaister 2006 and by estimating a panel within groups model with data aggregated by borough although all models agree on the sign of the elasticities the magnitudes differ greatly elasticities change over time and differ between the national and local levels with smaller price responses in mexico city in general price elasticities are smaller than those reported in the gasoline demand surveys a pattern previously found in developing countries the fact that income and vehicle stock elasticities increase over time may suggest that vehicles are being used more intensively in recent years and that mexico city residents are purchasing larger vehicles elasticities with respect to metro fares are negligible which suggests little substitution between modes finally the fact that fuel efficiency elasticities are smaller than vehicle stock elasticities suggests that vehicle stock size rather than its composition has a larger impact on gasoline consumption in mexico city

compensating variation consumer s surplus and welfare the compensating variation was defined by j r hicks 1942 as the amount one would have to deduct from a person s income to make him just as well off after a change in prices and income as he had been in the initial situation if the compensating variation is positive the individual is better off under the new situation since the compensating variation furnishes a uniquely defined numerical cardinal indicator of welfare improvement it provides an implicit ranking of alternative prospective situations not only relative to the initial situation but also relative to each other in practice this appears to be how this and other tools of cost benefit analysis are actually used one is interested in knowing not only whether a particular bridge or a particular excise tax will lead to an improvement in welfare but which out of a set of alternative bridges or alternative tax systems will improve welfare the most 1 in this paper we analyze conditions under which the compensating variation can be validly used in this generalized sense these turn out to be precisely the same as conditions previously derived see our 1976 paper for the valid use of consumer s surplus as a welfare measure in our final section we analyze the problem of deriving the generalized equivalent and compensating variations either exactly or approximately from observable demand functions by means of generalizations of or alternatives to consumer s surplus

the demand for gasoline in south africa an empirical analysis using co integration techniques abstract using the recently developed autoregressive distributed lag ardl bound testing approach to co integration suggested by pesaran et al pesaran m h shin y smith r j bounds testing approaches to the analysis of level relationships journal of applied econometrics 2001 16 3 289 326 we empirically analyzed the long run relationship among the variables in the aggregate gasoline demand function over the period 1978 2005 our study confirms the existence of a co integrating relationship the estimated price and income elasticities of 0 47 and 0 36 imply that gasoline demand in south africa is price and income inelastic

risk perceptions risk preference and acceptance of risky food consumers risk preferences are often overlooked in studies of consumer demand for risky food we find that risk preferences elicited through context less lottery choices are significantly related to consumers stated preferences for genetically modified gm food these results suggest risk preferences elicited in the laboratory are not artificial in the sense that they appear to be related to the same risk preferences that govern other individual decisions such as food choice consistent with theoretical expectations risk perceptions and risk preferences were found to be significant determinants of acceptance of gm food which has important implications for explaining consumer behavior

endogenously chosen travel costs and the travel cost model an application to mountain biking at moab utah the travel cost model is frequently used to estimate net willingness to pay for recreation at remote sites by using the visitor s travel costs as a proxy for the price of recreation however some concern has been raised over the validity of using the visitor s stated travel costs as a proxy for price this paper addresses some of these concerns by examining the possible over estimation of consumer surplus due to endogenously chosen travel costs this paper extends past theoretical work for the linear model by developing a correction for endogenously chosen travel costs in more commonly used nonlinear models such as the poisson or count data model also provided is the first empirical test of the presence of endogeneity and an estimate of the magnitude of the error from ignoring endogeneity in travel costs after applying this test and the correction to data that was gathered for mountain biking at moab utah the estimate of consumer surplus falls from us 153 to us 135 which is a 12 reduction

mass customization a method for market segmentation and choice menu design abstract this paper proposes a method for designing choice menus for mass customization mc the method is based on the analysis of stated preferences sp on product or service attributes obtained through panel studies the method is first presented and then illustrated with a real world case application in a natural gas ng distribution company the case application indicated the method was able to elicit stated preferences on a broad range of attributes enabling the design of choice menus of different sizes and content for alternative customer segments thus balancing the trade off between flexibility and complexity that is at the core of choice menu design

quantifying the impact of exogenous non economic factors on uk transport oil demand abstract this paper attempts to quantify the impact of exogenous non economic factors on uk transport oil demand in addition to income price and fuel efficiency by estimating the demand relationship for oil transport for 1960 2007 using the structural time series model from this the relative impact on uk transport oil demand from income price and efficiency are quantified moreover the relative impact of the non economic factors is also quantified based on the premise that the estimated stochastic trend represents behavioural responses to changes in socio economic factors and changes in lifestyles and attitudes the estimated elasticities for income price and efficiency are 0 6 0 1 and 0 3 respectively and it is shown that for efficiency and price the overall contribution is relatively small whereas the contribution from income and non economic factors is relatively large this has important implications for policy makers keen to reduce transport oil consumption and associated emissions but not willing to reduce the trend rate of economic growth taxes and improved efficiency only have a limited impact hence a major thrust of policy should perhaps be on educating and informing consumers to persuade them to change their lifestyle and attitudes and thus reduce their consumption through the non economic instruments route

currents and sub currents in innovation flows explaining innovativeness using new product announcements the creation of new knowledge is a haphazard process not every sector in an economy is equally involved the effect of industry structure on innovativeness has been a focus of attention for a long time by both academics and policymakers in a much quoted article using unique data new product announcements acs and audretsch acs z j audretsch d b 1988 innovation in large and small firms an empirical analysis american economic review 78 4 678 690 identified several characteristics of industry structure and their effects on innovativeness by analyzing a new and more consciously compiled database we re examine their original claims our results largely support their findings industry concentration and degree of unionization for instance hamper innovation skilled labor promotes it our findings diverge in one significant respect from theirs we suggest that the large firms do not contribute more to an industry s innovativeness than small firms at the industry level we find strong support for the schumpeter mark i perspective of creative destruction by small firms rather than creative accumulation by large firms in addition we show that less dedicated innovators prove more susceptible to firm external industry factors than more committed innovators an unfavorable competitive environment decreases the likelihood that less successful innovators will announce new products c 2008 elsevier b v all rights reserved

liberalization outward orientation and in house r d activity of multinational and local firms a quantitative exploration for indian manufacturing abstract in an increasingly globalizing and knowledge based world economy the declining importance of r d activity in india is a matter of concern this paper analyzes the determinants of r d behaviour of indian enterprises over the 1990s in the context of the reforms of 1991 and their impact on the r d behaviour of mne affiliates and local enterprises the analysis suggests that although average levels of spending have fallen increased competition due to liberalization seems to have pushed local firms to rationalize their r d activity and make it more efficient also r d spending seems to rise more than proportionally with firm size after a certain threshold level has been reached the analysis brings out differences in the nature of r d activity of mne affiliates and local firms local firms direct their r d activity primarily towards the assimilation of imported technology and to providing a backup to their outward expansion via exports and fdi mne affiliates on the other hand focus on exploiting the advantages of india as an r d platform for their parents the paper is concluded with some policy implications of the findings

on measuring existence value the prevailing consensus that existence value can only be measured by contingent valuation is questioned the concern is over pure existence value a change in welfare when a public good changes that leaves no trace in behavior pure existence value may well be more a consequence of the simple models used to characterize nonuse value than a reflection of how people value public goods if so nonuse value can in principle be obtained from observing behavior as well as from asking questions which offers a prospect for cross checks and corroboration using both approaches some possibilities for empirical measurement are suggested

on the aggregate value of recreational activities a nested price index approach using poisson demand systems an important consideration in the development ofregulations and policies that administer naturalresources in an area is the value of the non marketactivities supported by those lands little attentionhas been paid to the aggregate value of largegeographic areas this analysis builds autility theoretic price index and utilizes this indexto estimate an aggregate poisson demand to valuebackcountry recreational hiking opportunities innorthern california

capitalisation of fiscal variables and land scarcity fiscal packages usually capitalise into house prices yet if enough land for construction is available housing developers could supply new houses and capitalisation may disappear this paper provides a theoretical model in which income taxes and public services capitalise at lower rates when housing supply elasticity increases using an empirical linear interaction model we estimate the impact of available land for construction on capitalisation rates with a panel of swiss communities results indicate that fiscal variables do not capitalise differently in communities where housing supply is constrained by land availability thus land availability is a necessary but not sufficient condition for capitalisation to disappear

measuring global gasoline and diesel price and income elasticities abstract price and income elasticities of transport fuel demand have numerous applications they help forecast increases in fuel consumption as countries get richer they help develop appropriate tax policies to curtail consumption help determine how the transport fuel mix might evolve and show the price response to a fuel disruption given their usefulness it is understandable why hundreds of studies have focused on measuring such elasticities for gasoline and diesel fuel consumption in this paper i focus my attention on price and income elasticities in the existing studies to see what can be learned from them i summarize the elasticities from these historical studies i use statistical analysis to investigate whether income and price elasticities seem to be constant across countries with different incomes and prices although income and price elasticities for gasoline and diesel fuel are not found to be the same at high and low incomes and at high and low prices patterns emerge that allow me to develop suggested price and income elasticities for gasoline and diesel demand for over one hundred countries i adjust these elasticities for recent fuel mix policies and suggest an agenda of future research topics

the intergenerational conflict over the provision of public education abstract we study the intergenerational conflict over the provision of public education this conflict arises because older households without children have weaker incentives to support the provision of high quality educational services in a community than younger households with school age children we develop an overlapping generations model for households in a system of multiple jurisdictions this model captures the differences in preferred policies over the life cycle we show that the observed inequality in educational policies across communities is not only the outcome of stratification by income but is also determined by the stratification by age and a political process that is dominated by older voters in many urban communities with low quality of educational services the mobility of older households creates a positive fiscal externality since it creates a larger tax base per student this positive tax externality can dominate the negative effects that arise because older households tend to vote for lower educational expenditures as a consequence sorting by age can reduce the inequality in educational outcomes that is driven by income sorting

consumer choice process for experience goods an econometric model and analysis in this research the authors develop and execute an econometric framework to model and analyze the consumer choice process for experience products formally the authors develop a multistage model

estimating willingness to pay for housing characteristics an application of the ellickson bid rent model abstract the purpose of this paper is to estimate willingness to pay for housing characteristics using the discrete choice bid rent framework developed by b ellickson j urban econom 9 56 79 1981 and modified by s r lerman and c r kern j urban econom 13 358 363 1983 the paper provides an initial empirical test of the lerman and kern modifications using household level data from bogota colombia the results of the model are evaluated by comparing forecasted bid rents to actual rents and forecasted dwelling occupants to actual occupants by examining the demand prices which emerge from the analysis and by comparing the results to previous housing demand research which uses a hedonic type approach to analyze identical data the findings of the study show that the bid rent model works reasonably well in its predictions and in its estimates of the demand for attributes and in some ways it may perform better than a hedonic type model in forecasting the demand for housing attributes

possibilities for including the opportunity cost of time in recreation demand systems recreation demand modelers have attempted to identify and incorporate the opportunity cost of an individual s time in travel and on site in the model larson 1993b focused on the value of leisure time in a model where individuals face a fixed work week in this paper we examine the connection between labor supply and recreation demands and focus on conditional demand systems we illustrate that corner solution models are not needed to explain several interesting time related recreation issues

use value of cultural experiences a comparison of contingent valuation and travel cost abstract few applications to assess the value of cultural experiences exist this is particularly frustrating for cultural institutions as it provides them with few opportunities to reveal their importance in terms of attractiveness and thus what drives tourism demand this study applies the travel cost method tcm and contingent valuation method cvm to assess the value of two rural cultural institutions in order to compare the results of the valuation methods the results reveal that visitor experiences consist of a core cultural experience as well as other valuable experiences before and after whereas cvm allows for a valuation of the core cultural experience separately from other experiences the tcm is limited to an overall assessment the tcm is therefore an inappropriate measure of the value of the cultural experiences when the total experience includes several other experiences if visitors travel for the sake of only one cultural experience tcm may be preferable due to its simple applicability and cost efficiency if however as is most often the case a cultural experience is part of a bundle of experiences the application of cvm is recommendable this is also the case if only visitors who state the cultural experience to be the primary reason for travelling are included

the effectiveness of gasoline taxation to manage air pollution abstract higher gasoline taxes can be justified because cars cause significant local regional and global air pollution damages this study examines whether charging higher taxes would result in significant emission reductions both experimental survey data and actual behavior in southern california and connecticut are evaluated to explore whether people would change their driving behavior in response to higher gasoline prices both sets of results reveal that drivers are price inelastic in the short run 0 4 to 0 6 and long run 0 5 to 0 7 imposing environmental surcharges on gasoline will result in only a small reduction in driving and thus only a small improvement in the environment such taxes will place a heavy and clear burden on drivers however making gasoline taxes extremely unpopular finally the study finds that the income elasticity of gasoline is low 0 1 0 2 so that the gas tax will fall heavily on the poor

the elasticity of demand for gasoline in china abstract this paper estimates the price and income elasticities of demand for gasoline in china our estimates of the intermediate run price elasticity of gasoline demand range between 0 497 and 0 196 and our estimates of the intermediate run income elasticity of gasoline demand range between 1 01 and 1 05 we also extend previous studies to estimate the vehicle miles traveled vmt elasticity and obtain a range from 0 882 to 0 579

elasticities of demand for gasoline in canada and the united states abstract fluctuations in the world price of oil the concern with greenhouse gas emissions and the efforts to revive the 1997 kyoto protocol have resulted in renewed interest in the estimation of elasticities of demand for gasoline in this paper a complete system of demand equations is estimated including an equation for the demand for gasoline canadian family expenditure famex and united states consumer expenditure cex survey data are used household level data permits estimation of elasticities for various household groups also differences in demand responsiveness to own price and income changes are estimated for different regions in canada and the united states demand is found to be own price and income inelastic on the whole as reported in earlier studies there is also variation in these elasticities across regions of canada and the united states however larger differences are observed with respect to household size and housing tenure than to region of residence

combining revealed and stated preferences consistency tests and their interpretations this article models the recreation demand for iowa wetlands combining survey data on both actual usage patterns i e revealed preferences rps and anticipated changes to those patterns under hypothetical increases in trip costs i e stated preferences sps we formulate and test specific hypotheses concerning potential sources of bias in each approach and discuss what can be learned about the validity of the models from such tests

the necessity for substitute prices recreation demand analyses omitting substitute prices from a travel cost model is shown to cause a significant bias in consumer surplus estimates three sets of travel cost models are developed from a common data base representing 60 000 day users of u s army corps of engineer reservoirs in kansas and missouri the firzt set of models omitted substitute prices the latter two sets included them an analysis of variance test showed that consumer surplus estimates from the first set of models were significantly higher than the other two f 26 2 with 2 20 degrees of freedom the theoretical and practical implications of these findings are discussed economic theory postulates that the demand for a good is a function of its price the price of related goods and services and income still many empirical estimates of demand for recreation sites have ignored the price of substitute recreation sites the most common technique for estimating recreational demand is the travel cost model tcm a comprehensive literature review of the tcm conducted by dwyer kelly and bowes showed that only six of twenty clearly defined tcm demand functions included substitute prices as an argument in the demand function most of the models they reviewed were old but considerable debate remains about incorporating substitutes in the tcm consider the diversity of approaches that have recently been used to incorporate substitute prices into tcm demand functions when modeling recreation demand at corps of engineer reservoirs desvousges smith and mcgivney omitted any

what experimental protocol influence disparities between actual and hypothetical stated values preferences elicited in hypothetical settings have recently come underscrutiny causing estimates from the contingent valuation method to bechallenged due to perceived hypothetical bias given that the receivedliterature derives value estimates using heterogeneous experimentaltechniques understanding the effects of important design parameters onthe magnitude of hypothetical bias is invaluable in this paper we addressthis issue statistically by using a meta analysis to examine data from 29experimental studies our empirical findings suggest that on averagesubjects overstate their preferences by a factor of about 3 in hypotheticalsettings and that the degree of over revelation is influenced by thedistinction between willingness to pay and willingness to accept publicversus private goods and several elicitation methods

the demand for gasoline evidence from household survey data summary in this paper we investigate the demand for gasoline in canada using recent annual expenditure data from the canadian survey of household spending over a 13 year period from 1997 to 2009 on three expenditure categories in the transportation sector gasoline local transportation and intercity transportation in doing so we use three of the most widely used locally flexible functional forms the almost ideal demand system aids of deaton and muellbauer 1980 the quadratic aids quaids of banks et al 1997 an extension of the simple aids model that can generate quadratic engel curves and the minflex laurent model of barnett 1983 which can also generate quadratic engel curves we pay explicit attention to economic regularity argue that unless regularity is attained by luck flexible functional forms should always be estimated subject to regularity as suggested by barnett 2002 and impose local curvature to produce inference consistent with neoclassical microeconomic theory our findings indicate that the curvature constrained minflex laurent model is the only model that is able to provide theoretically consistent estimates of the canadian demand for gasoline our estimates show that the own price elasticity for gasoline demand in canada is between 0 738 and 0 570 less elastic than previously reported in the literature copyright 2013 john wiley sons ltd

comparison of renewable energy policy evolution among the brics abstract renewable energy policy evolution of the brics is analyzed and assessed quantitatively based on the bai and perron s structure breaks test results indicate no break for time series of renewable production in russia while series of renewable production and consumption are characterized as segmented trend stationary processes around one or two structural breaks in brazil india and china renewable policies in brazil and china have long term positive effects on renewable energy production and consumption improving the two variables growth rate the time series structure change of indian renewable energy production is complicated and the long term impact of energy policies on renewable production is contradictory at the two breakpoints russian renewable policies are not working reducing renewable energy consumption growth in the long term empirical analysis suggests policy implications that china should mandate the promotion of renewable energy develop biomass energy on the base of comparative advantage and enhance renewable energy industry chain integration

short run long run and cross elasticities of gasoline demand in brazil gasoline is one of the most important of the oil derived products its importance is closely related to its participation in the value of imports of many countries and in a number of cases it is one of the determinants of their balance of payment deficit fiscal deficit and economic growth as opposed to most nations brazil has had a gasoline substitute since 1985 alcohol many studies have tried to estimate the income and price elasticities of the demand for gasoline in several countries this paper extends previous studies by estimating the cross price elasticity between gasoline and alcohol our findings indicate that alcohol is an imperfect substitute for gasoline even in the long run as a consequence the need for a new fuel substitution must be initiated long before petroleum reserves vanish

the economics of fish consumption advisories insights from revealed and stated preference data measuring how fish consumption advisories affect angler s utility has proven difficult relying on stated preference sp data is problematic because of hypothetical bias revealed preference rp data benefits from using actual behavior however co linearity often makes it difficult to model the array of advisory severity levels across different species and catch rates the array of advisories also makes traditional joint estimation impractical this paper describes an alternative joint estimation technique based on an index of sp parameter that we used for estimating the effect of fish consumption advisories on the fox river green bay

are stated preferences good predictors of market behavior using an economic experiment in conjunction with a survey we analyze whether consumers hypothetical willingness to pay responses are effective predictors of actual market behavior we model revealed preferences as a function of socio demographic characteristics and instrumental variables that represent the intensity of stated preferences our findings show that consumers who state that they are willing to pay a premium which is equal to or greater than a positive lower bound have a higher likelihood of actually buying the product in question this implies that consumers actions in the economic experiment validate their survey responses

the competitive characteristics of u s manufacturers in the machine tool industry this paper examines the competitive characteristics of u s manufacturers in the machine tool mt industry after several decades of decline this industry has recently shown signs of a modest but sustained recovery empirical evidence from a national survey of 104 mt producers suggests that the revival of this sector has been driven by a combination of factors including renewed export involvement improved customer support and better product design although most mt companies are small to medium sized enterprises smes the survey data show that very small smes are poorly represented in the recovery thrust of the industry as a whole our principal conclusion is that the mt industry has been following an export led path toward stabilization but that certain types of small producers are unlikely to thrive for very long the most serious problems facing small producers include shrinking local markets import competition shortages of skilled labor and cyclical demand

gasoline price volatility and the elasticity of demand for gasoline abstract we examine how gasoline price volatility impacts consumers price elasticity of demand for gasoline results show that volatility in prices decreases consumer demand for gasoline in the intermediate run we also find that consumers appear to be less elastic in response to changes in gasoline price when gasoline price volatility is medium or high compared to when it is low moreover we find that when we control for variance in our econometric model gasoline price elasticity of demand is lower in magnitude in the long run

estimating fishing and hunting leisure spending shares in the united states abstract we apply a bivariate censored demand system to estimate hunting and fishing trip related spending shares in the united states using data from off site surveys the approach considers fishing and hunting destination decisions and includes respondents who were inactive i e did not hunt or fished in a particular season the statistical significance of correlation coefficient parameter supports the use of a joint e g bivariate rather than separate e g univariate decision modeling process for fishing or hunting share equations most individual characteristics are statistically significant as explanatory variables respondents holding recreation licenses tended to spend significantly more on recreation than those without licenses all own price and cross price elasticities are statistically significant and suggest that hunting and fishing are complements the results also suggest that the popularity of hunting may decline as the population ages

r d support programs in developing countries the turkish experience in this study the determinants of private r d investment are examined at the level of firms in the turkish manufacturing industry we focus our attention on the effect of public r d support programs our findings indicate that public r d support significantly and positively affects private r d investment there seems to be even an acceleration effect on firm financed r d expenditures smaller r d performers benefit more from r d support and perform more r d in addition technology transfer from abroad and domestic r d activity show up as complementary processes given the scarcity of studies on r d support in technologically weaker economies our hope is that the less developed countries can exploit these findings in constructing socially beneficial technology policies

reconciling models of recreational route and site choices when employing travel cost models the unit cost of the essential input travel in the household s production of a recreation experience is central to obtaining the preference structure for the recreational good however little attention has been given to the choice of the route although the route defines the monetary and time costs used to compute travel costs conventional wisdom considers time and money costs in determining the cost per mile in the estimation of site choices but does not use both in determining the route choices and mileages this paper investigates whether models of recreational site and route choices can be reconciled

the empirical effects of a gasoline tax on co2 emissions reductions from transportation sector in korea the introduction of carbon tax is expected to mitigate ghg emissions cost effectively with this expectation identifying the impacts of carbon tax on energy demand and ghg emission reductions is an interesting issue one of the basic methods of estimating these impacts is using the price elasticity there are however some unanswered questions regarding the use of price elasticity first which elasticity estimates are appropriate to measure the impacts of carbon tax on energy demand the existing estimates are estimated in the presence of a substitute to assess the impact of carbon tax could we use these estimates second how can we compromise the differences among the existing estimates depending on estimation methods and specifications for example how can we accommodate the difference in the estimates from the regional panel specification and the aggregate specification this paper tries to answer these questions with the price elasticity of gasoline demand with an appropriate price elasticity we show how much gasoline consumption and ghg emissions are reduced by carbon tax for different scenarios of carbon tax rate

product and price competition in a two dimensional vertical differentiation model in this paper the one dimensional vertical differentiation model shaked and sutton shaked a j sutton 1982 relaxing price competition through product differentiation rev econom stud 49 3 13 moorthy moorthy k s 1988 product and price competition in a duopoly marketing sci 7spring 141 168 is extended to two dimensions and an analysis of product and price competition is presented a two stage game theoretic analysis in which two firms compete first on product positions and then on price is conducted closed form equilibrium solutions are obtained for each stage in which competitors are unrestricted in their choices of price or product positions a significant finding of this research is that unlike the one dimensional vertical differentiation model firms do not tend towards maximum differentiation although this solution is possible under certain conditions when the range of positioning options on each of the dimensions is equal maxmin product differentiation occurs that is in equilibrium the two firms tend to choose positions which will represent maximum differentiation on one dimension and minimum differentiation on the other dimension

augmenting travel cost models with contingent behavior data this paper proposes contingent behavior survey questions as a valuable supplement to observed data in travel cost models of non market demand for recreational resources a set of observed and contingent behavior results for each survey respondent allows the researcher to control for individual heterogeneity by taking advantage of panel data methods when exploring the nature of respondent demands the contingent scenarios also provide opportunities to a test for differences between observed and contingent preferences and or b assess likely demands under conditionsbeyond the domain of observed variation in costs or resource attributes most importantly contingent scenarios allow the researcher to imposeexogenously varying travel costs exogenous imposition of travel costs together with panel methods reduces the omitted variables bias that plagues observed data travel cost models of recreational demand using a convenience sample of data for illustrative purposes we show how to estimate the demand for recreational angling by combining observed and contingent behavior data we begin with simple naive pooled poisson models and progress to more theoretically appropriate fixed effects panel poisson specifications

short and long run elasticities of gasoline demand in india an empirical analysis using cointegration techniques abstract in developing countries like india consumption of petroleum products has implications on its balance of payments economic growth and fiscal deficit gasoline is one of the prime petroleum products in this paper the relationship between gasoline demand national income and price of gasoline is empirically examined using cointegration and error correction techniques the time frame of the analysis is from 1972 1973 to 1993 1994 it has been found that gasoline demand is likely to increase significantly for a given increase in the gross domestic product the increase will be larger in the long run 2 682 than in the short run 1 178 gasoline demand is relatively inelastic to price changes both in the long and short terms the error correction model has shown that gasoline demand adjusts to their respective long run equilibrium at a relatively slow rate with about 28 of adjustment taking place in the first year

revealed and stated preferences for co2 emissions reduction the missing link abstract in this paper we combine data collected from two strands of literature dealing with revealed preferences expressed by conventional vehicle drivers for fuel price variation and stated preferences expressed by consumers for alternative fuel vehicles we employ a meta analysis approach drawing data on 30 primary studies reflecting two important policy interventions which are fuel price taxation and subsidies for alternative fuel vehicles this is a new contribution in environmental and energy economics in that we rescale all primary information into a unique index which captures consumers economic attitude towards carbon dioxide co2 emission reduction in monetary terms focusing on the transport sector we compute the implicit price for the avoidance of a kilogram of co2 emissions named pco2 explaining the existing heterogeneity from several points of view the results of the meta analysis show that contextual and individual characteristics influence the implicit price for co2 emissions avoidance this implicit price is on average positive in the case of revealed preferences studies whereas it is negative in the stated preferences studies although there are some important geographical differences our results show that fuel taxes could be an important additional instrument for environmental policy

a welfare estimation of beach recreation with aggregate data a single site travel cost recreation demand model for a representative agent visiting a beach is employed that uses an indirect utility function alternative specifications of the expected demand function are estimated with aggregate time series data from a local beach park the estimated parameters are used to compute the value of the consumer surplus the recreational value of the park is expectedly sensitive to the functional form used also own price and income elasticities for various functional forms vary the results from the box cox procedure suggest that the semi log function is the most appropriate for the data used in this study confidence intervals are calculated to deal with the reliability problem of the consumer surplus estimates an alternative algorithm which assumes omitted variable as the source of the error in the demand function is also presented

innovation and size at the firm level empirical studies examining the relationship between firm size and innovative activity have produced what superficially might appear to be contradictory results while some studies have found a positive relationship between firm size and technological change still others have identified no relationship or even a negative one there are two main reasons for these seemingly inconsistent findings the first is that different measures have been used to quantify technical change these measures have typically involved either some measure of inputs into the innovative process such as r d expenditures or else the number of patented inventions while neither of these are direct measures of innovative output they clearly represent different aspects of the innovative process thus it is perhaps not too surprising that different results have tended to emerge when the r d input measures are used than for the patent measures the second reason is that virtually every study examining the relationship between firm size and technical change has had to use a truncated distribution of firm sizes where either no or only a few small firms were included for example scherer s 14 234 35 conclusion that the empirical results tilt on the side of supporting the schumpeterian hypothesis that size is conducive to vigorous conduct of r d was based on the responses of 443 large corporations participating in the federal trade commission s line of business survey similarly scherer 15 used the fortune annual survey of the 500 largest u s industrial corporations and found that the number of patented inventions increases less than proportionately along with firm size soete 16 found that r d expenditures tend to increase more than proportionately along with firm size using a sample from business week consisting of the most r d intensive firms bound et al 6 were able to include a considerably wider spectrum of firm sizes in their sample of 1 492 firms from the 1976 compustat data they found that r d increases more than proportionately along with firm size for the smaller firms in their sample but that a fairly linear relationship exists for the largest firms inferences about the relationship between firm size and technical change based on a severely we thank f m scherer and an anonymous referee for helpful suggestions as well as sigrid raasch and jianping

some new evidence on the determinants of large and small firm innovation empirical analyses presented by acs and audretsch suggest differences in the market structure determinants of innovation between large and small firms in u s manufacturing the evidence they offer is ambiguous by using data for a different country the netherlands a different measure of innovation and a different aggregation level we offer new evidence allowing a revaluation of the findings for the u s material moreover the influence of the market structure determinants does not appear to differ between a period of sluggish growth 1983 and one of relatively high growth 1989

tax incentives and r d activity firm level evidence from taiwan this paper investigates the effect of tax incentives on r d activities in taiwanese manufacturing firms specifically we assess the potential r d enhancing effect on recipients of r d tax credits compared with their non recipient counterparts moreover the potential difference in the r d enhancing effect between high tech and non high tech firms is also examined utilizing a firm level panel dataset during 2001 and 2005 empirical results obtained by propensity score matching show that recipients of r d tax credits appear on average to have 93 53 higher r d expenditures and a 14 47 higher growth rate for r d expenditures than non recipients with similar characteristics the r d enhancing effect of r d tax credits is not found to be particularly relevant to high tech or non high tech firms we further employ a generalized method of moment gmm of the panel fixed model to control for the endogeneity of r d tax credits and firm heterogeneity in determining r d expenditure various estimates based on the entire sample and high tech firms are quite similar and there is a significantly r d enhancing effect of r d tax credits this result suggests that the r d preferential policy has induced more r d expenditure by firms in taiwan while the existence of the r d enhancing effect brought on by tax incentives is intuitive the estimates can provide insightful implications for the r d tax policy

an analysis of joint costs in a managed forest ecosystem abstract this paper analyzes the tenability of line item budgeting and independently determined output costs for a managed forest ecosystem the general problem of cost allocation in a joint production system is discussed as one of choosing paths of integration a production structure is hypothesized for describing a managed forest ecosystem and its characteristics of jointness are discussed finally an empirical case example is presented which indicates that cost estimates and associated means of production which result from single output costing procedures and from joint costing procedures may be significantly different in a managed forest ecosystem

intra regional amenities wages and home prices the role of forests in the southwest forests provide non market goods and services that people are implicitly willing to pay for through hedonic housing and labor markets but it is unclear if compensating differentials arise in these markets at the regional level this empirical question is addressed in a study of arizona and new mexico hedonicregressionsofhousingpricesandwagesusing census and geographic data show that forest area carries an implicit price of between 27 and 36 per square mile annually compensating differentials at the regional level suggest that care must be taken when applying the travel cost method to value regionallydelineated characteristics jel q23 r14

spatial preference heterogeneity in forest recreation abstract in this study we analyze the preferences for recreational use of forests in lorraine northeastern france applying stated preference data our approach allows us to estimate individual specific preferences for recreational use of different forest types these estimates are used in a second stage of the analysis where we test whether preferences depend on access to recreation sites we find that there is significant preference heterogeneity with respect to most forest attributes the spatial analysis shows that preferences for forests with parking and picnic facilities are correlated with having access to such forests while for the other attributes considered dominant tree species trekking paths and presence of lake and rivers we find no correlation between stated preferences and accessibility this implies that the problem of endogenous distances in the travel cost method parsons 1991 may be present in the estimation of welfare economic values for parking and picnic facilities in the analyzed model the results underline the importance of considering spatial heterogeneity of preferences carrying out economic valuation of spatial delineated environmental goods and that the spatial variation in willingness to pay for such goods is not only explained by the users transport costs of accessing the sites