prospective exploration of future renewable portfolio standard schemes in china via a multi sector cge model abstract the shortage of traditional energy sources and environmental pollution caused by the consumption of fossil fuels have become increasingly prominent and many countries regard the development of renewable energy as important for ensuring energy conservation and emission reductions in addition renewable portfolio standard is important for china to achieve energy transition the chinese government is actively promoting the construction of a renewable portfolio standard system considering different renewable energy development targets for renewable portfolio standards this paper establishes a dynamic computable general equilibrium cge model to research the impacts of achieving various policy targets the main simulation results are as follows promoting renewable sources would have a slightly negative impact on macroeconomics for each additional percentage point in the share of renewable energy generation in 2030 the loss of gdp would increase by approximately 9 11 billion rmb a renewable energy policy could be also conducive to carbon emission reduction and energy structure adjustment certainly the proportion of renewable energy in the total power generation should be approximately 34 to achieve the government target for non fossil fuels to account for approximately 20 of the primary energy consumption by 2030

a bibliometric analysis of research on carbon tax from 1989 to 2014 abstract as one of the most cost effective means of emission reduction carbon tax has attracted considerable attention from economists and international organizations and has led to a large number of related research using the bibliometric method this paper characterizes the carbon tax literature from 1989 to 2014 based on the network database platform of web of science the results indicate that the usa occupies a leading position in the carbon tax field the vrije university amsterdam massachusetts institute of technology and stanford university were the most productive research institutes energy policy 143 has been the most productive journal followed by energy economics 44 and energy 38 in general the cooperation of authors institutes and nations are continuing to strengthen however the growth rate at the author level was significantly higher than the others in addition the current key research areas in the carbon tax field based on co keyword analysis are as follows climate change and relevant policy carbon emissions trading socio economic effects of carbon tax renewable energy endogenous technological change and carbon capture and storage the results of this paper will help researchers grasp the current research in the carbon tax field but also provide a supporting role for future work

re analyzing the economic impact of a global bunker emissions charge abstract regulating bunker emissions continues to be a challenging task largely due to the lack of a globally coordinated scheme providing economic and political incentives to potential participating countries this paper analyses the economic costs and benefits of imposing a global carbon tax on international bunker emissions by employing a computable general equilibrium model approach under the assumption of an emissions reduction of 5 below 2000 levels by 2020 we demonstrate that a global bunker emissions charge on one hand reduces trade volume and change trade patterns between countries and regions while on the other hand accelerates the adoption of energy saving technologies and reallocates the supply of international transportation services throughout the world the net economic impact though negative on average is modest compared to the benefits obtained from the emissions reduction if revenues from a bunker emissions charge are properly distributed among countries and regions the losses to disadvantaged countries are likely to be offset by the benefits to advantaged countries this finding provides useful insights for policy makers a global bunker emissions charge could in future be an economically feasible strategy to reduce the increasing bunker emissions through the implementation requires more political effort and wisdom

behavioural tax microsimulation with finite hours choices abstract it is often argued that institutional factors constrain the labour supply choices open to the individual in this paper we present an alternative to the standard neoclassical model of labour supply under the presumption that the number of hours choices are discrete and finite we explore alternative specifications of discrete models of labour supply which are appropriate for the microsimulation of the behavioural impact of tax policy reform policy simulations are carried out for a basic income reform

elections coalitions and legislative outcomes predictions of electoral behavior in a multiparty setting should be a function of the voters beliefs about how parties will perform following an election similarly party behavior in a legislature should be a function of electoral promises and rewards we develop a multistage game theoretic model of three party competition under proportional representation the final policy outcome of the game is generated by a noncooperative bargaining game between the parties in the elected legislature this game is essentially defined by the vote shares each party receives in the general election and the parties electoral policy positions at the electoral stage parties and voters are strategic in that they take account of the legislative implications of any electoral outcome we solve for equilibrium electoral positions by the parties and final policy outcomes

the economic and environmental impact of a carbon tax for scotland a computable general equilibrium analysis using a disaggregated energy economy environmental model we investigate the economic and environmental impact of a scottish specific carbon tax under three alternative assumptions about the use of the revenue raised by the tax revenues raised are not recycled within scotland revenues are used to increase general government expenditure or to reduce scottish income tax we find that by imposing a tax of 50 per tonne of co2 the 37 co2 reduction target is met with a very rapid adjustment in all three cases if the model incorporates forward looking behaviour however the adjustment is much slower if agents are myopic in addition the results of the model suggest that a carbon tax might simultaneously stimulate economic activity whilst reducing emissions and thus secure a double dividend but only for the case in which the revenue is recycled through income tax

effects of carbon taxes in an economy with prior tax distortions an intertemporal general equilibrium analysis abstract this paper analyzes the costs of carbon taxes in a model that recognizes interactions between this tax and pre existing taxes first we examine the extent to which costs of a u s carbon tax are reduced when its revenues finance cuts in income taxes such use of revenues significantly reduces but does not eliminate the overall policy costs the positive overall costs reflect the carbon tax s focus on intermediate inputs and its relatively narrow base in comparison with income taxes we also examine the sensitivity of the carbon tax s costs to the level of pre existing taxes for any given use of revenues welfare costs rise significantly with pre existing tax rates indicating that models disregarding pre existing taxes may substantially understate the costs of new environmental tax initiatives

a life cycle consistent empirical model of family labour supply using cross section data this paper estimates a utility maximising model of the joint determination of male and female labour supplies using a sample of married couples from the u k family expenditure survey the emphasis is on the estimation of within period preferences that are consistent with intertemporal two stage budgeting under uncertainty however the approach we adopt provides an alternative method of estimating certain aspects of life cycle behaviour to the fixed effects constant approach of heckman and macurdy 1980 macurdy 1981 and browning deaton and irish 1985 moreover it relaxes some of the underlying restrictions that are implicit in these constant models under uncertainty

the importance of revenue sharing for the local economic impacts of a renewable energy project a social accounting matrix approach allan g mcgregor p and swales k the importance of revenue sharing for the local economic impacts of a renewable energy project a social accounting matrix approach regional studies ambitious renewable energy targets are requiring investments in new renewable capacity in areas where acceptance could be affected by the potential economic benefits to the locality at the same time new renewable energy projects primarily for onshore wind capacity might offer a route by which peripheral economic development policies can be supported the economic impacts of these projects are difficult to quantify using input output techniques but can be more appropriately handled within a social accounting matrix sam framework a social accounting matrix for the shetland islands off the north coast of mainland scotland is used to evaluate the potential local economic and employment impacts of a large proposed onshore wind energy project sensitivity analysis reveals the relative importance of the level of commu

additional precision provided by region specific data the identification of fuel use and pollution generation coefficients in the jersey economy turner k 2006 additional precision provided by region specific data the identification of fuel use and pollution generation coefficients in the jersey economy regional studies 40 347 364 a debate is currently ongoing in the uk regarding the need to collect and report data at the regional level one specific area of this debate is the extent to which region specific economic and environmental data are required to carry out analyses of devolved sustainability policy issues this paper uses the jersey economy as a case study to assess the added precision from using good quality region specific data compared with adjusted national uk data it is found that due to differences in polluting technology between jersey and the uk estimates based on national emissions intensities produce results that are misleading in terms of both absolute pollution levels and the relative contribution of different activities to total emissions in the economy while jersey may be regarded as atypical in many ways relative

labour supply incentives and recent family credit reforms in july i995 a fi o per week increment to family credit was introduced for recipients working full time this reform announced in the november i994 budget was a response to concerns that family credit created labour market inflexibility among those eligible for the benefit specifically it was designed to mitigate the effects of the high marginal withdrawal rates associated with the reduction of family credit as hours and gross income rise the secretary of state for social security stated

age analysis of the impact of a carbon energy tax on the irish economy a computable general equilibrium model with specific detail in taxation and energy use is developed in this paper to quantify the impact of the implementation of energy taxation to reduce carbon dioxide emissions in ireland benchmark data combining physical energy and emissions data and economic data in the form of a social accounting matrix sam had to be compiled from various data sources because energy and pollution accounts from the seea are not available for ireland we find that the reduction target for energy related co2 emissions in ireland of 25 8 compared to 1998 levels can be achieved with a carbon energy tax of 10 15 euros per tonne of co2 though fuel switching is important in meeting the target this result is more sensitive to the possibilities for producers to substitute away from energy use welfare would fall but only by small percentages production and consumption patterns would change more significantly with a shift in demand from fuels with a high emission factor to energy sources with a lower carbon intensity and from energy to other commodities this paper confirms that a carbon energy tax leads to greater emission reductions than an equivalent uniform energy tax the latter has a stronger negative impact on the less polluting energy sectors whereas the carbon tax greatly stimulates the use of renewable energy and reduces the use of peat and coal the new sam the model and the application to energy taxes contribute to a better informed debate on environmental policy in ireland

taking stock of the local impacts of community owned renewable energy a review and research agenda abstract a growing literature suggests that community owned renewable energy cre projects have the potential to deliver a range of environmental and local socio economic benefits there is relatively little empirical evidence to substantiate this with few systematic efforts to assess social and environmental impacts or to understand the context in which given impacts arise in this paper we review and conceptualise the local impacts commonly cited in the literature and dissect the empirical evidence currently available to support their occurrence having assessed the quality of evidence and pinpointed knowledge gaps we draw on methodological literature to identify approaches necessary to improve our understanding of the local impacts of cre and explore their patterns of occurrence we find a lack of robust survey and statistical evidence across all the seven impact categories identified of the impacts identified empowerment and access to affordable energy are found to be the least studied in addition several impacts are associated only with specific types of community energy projects we argue that the paucity of consistent evidence for direct impacts associated with the development processes and direct outcomes of projects suggests that the most substantial local impacts result from medium to long term indirect project outcomes and the investment of project revenues in the local community as such collective funding pools and negotiation processes around their distribution towards private versus public goods play a crucial role in determining transformative local impacts of cre

the effect of carbon tax on farm income evidence from a canadian province british columbia bc introduced north america s first carbon tax in 2008 an analysis of the impact of the bc carbon tax is of interest to various stakeholders in the jurisdiction where the tax was implemented other canadian provinces and other countries contemplating a carbon tax policy are looking for insights on how to optimize potential positive and negative consequences given that government agri environmental policies often emphasize farm level support and environmental performance there is interest in understanding the farm level impacts of the carbon tax the effect of the bc carbon tax on farm income and related production cost variables is investigated panel data from 2000 to 2015 are analyzed using both tabular and econometric approaches of the difference in difference method the results indicate that the carbon tax is associated with a decline in net farm income to receipts ratios ranging between 8 and 12 cents per dollar of farm receipts the analysis for costs to receipts ratios suggest that the carbon tax is directly related to higher commercial feed costs farm labour costs interest costs and depreciation costs results of the regression analysis indicate that all the carbon tax effects are highly statistically significant these findings can inform policy discussions about carbon tax effects on farmers

ex post analysis of economic impacts from wind power development in u s counties wind power development has surged in recent years in the united states policymakers and economic development practitioners to date have typically relied upon project level case studies or modeled input output estimates to assess the economic development impacts from wind power often focusing on potential local state wide or national employment or earnings impacts building on this literature we conduct an ex post econometric analysis of the county level economic development impacts of wind power installations from 2000 through 2008 in a large wind rich region in the country taking into account factors influencing wind turbine location we find an aggregate increase in county level personal income and employment of approximately 11 000 and 0 5 jobs per megawatt of wind power capacity installed over the sample period of 2000 to 2008 these estimates appear broadly consistent with modeled input output results and translate to a median increase in total county personal income and employment of 0 2 and 0 4 for counties with installed wind power over the same period

the sensitivity of an empirical model of married women s hours of work to economic and statistical assumptions this study undertakes a systematic analysis of several theoretic and statistical assumption s used in many empirical models of female labor supply using a singl e data set psid 1975 labor supply data the author is able to replic ate most of the range of estimated income and substitution effects fo und in previous studies in this field he undertakes extensive specif ication tests and finds that most of this range should be rejected du e to statistical and model misspecifications the two most important assumptions appear to be the tobit assumption used to control for sel f selection into the labor force and exogeneity assumptions on the wi fe s wage rate and her labor market experience copyright 1987 by the econometric society

an economic assessment of windfarm power generation in scotland including externalities abstract this paper uses cost benefit analysis to assess the economic feasibility of a large scale windfarm project taking into account positive and negative externalities of generation the issue of non use value i e a welfare change among those who will never visit the area and see the windfarm is addressed with reference to the study by bergmann et al 2006 valuing the attributes of renewable energy investments energy policy 34 1004 1014 which determined a social cost of 19 40 per household for the non use disamenity associated with a large scale windfarm in scotland this paper demonstrates the extent to which this estimate affects the economic feasibility of the project we find that for all but one of the 16 scenarios considered the project returns a positive net present value despite the inclusion of this non use value thus suggesting that in these cases the windfarm delivers a net welfare gain to society

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

regional employment impacts of marine energy in the scottish economy a general equilibrium approach gilmartin m and allan g regional employment impacts of marine energy in the scottish economy a general equilibrium approach regional studies one aspect of the case for policy support for renewable energy developments is the wider economic benefits that are expected to be generated within scotland as with other regions of the uk there is a focus on encouraging domestically based renewable technologies this paper uses a regional computable general equilibrium framework to model the impact on the scottish economy of expenditures relating to marine energy installations the results illustrate the potential for considerable legacy effects after expenditures cease in identifying the specific sectoral expenditures with the largest impact on lifetime regional employment this approach offers important policy guidance

the impact on electric power industry under the implementation of national carbon trading market in china a dynamic cge analysis abstract as the largest carbon emissions source sector electric power industry is undoubtedly a principal part of the carbon trading market in china aimed at researching the impact on power industry beyond establishing the national carbon trading market a dynamic computable general equilibrium cge model embedded with carbon trading block is introduced in this paper subsequently we design 8 scenarios of which illustrate corresponding industry carbon emissions baselines and free quotas ratios the main simulation results are as follows the implementation of carbon emissions trading would bring a certain negative impact on the overall economy real gdp will be reduced by about 0 08 0 52 in 2030 though low free quotas ratio will cause a relatively high loss of gdp this negative impact would be eliminated in the long run in addition carbon emissions trading would also promote the clean production of electricity indeed the electric power industry would reach carbon emissions peak around 2020 relative to scenarios without carbon trading carbon emissions would reduce more than 1000 million tons in 2030 when industry carbon emissions baseline declines at an annual rate of 2 consequently the carbon market can achieve a more significant reduction in carbon emissions with the influencing of quotas fully auctioned scenario

predicting the number of parties a quantitative model of duverger s mechanical effect iby means of a quantitative model the model predicts the range within which the effective number of parties in a district should fall for a given magnitude number of seats of the district at the national level a related model predicts the effective number of parties based on the effective magnitude and the number of seats in the national assembly the institutional variables considered magnitude and assembly size define a great portion of the structural constraints within which a given country s politics must take place the model developed provides a good fit to data in spite of its having been developed from outrageously simple starting assumptions tf one had to give a single number to characterize the politics of any country that employs competitive elections it would be the number of parties active in its national assembly this number would not tell the whole story by any means but it tells us more than any other single number or term could the number of parties directly or indirectly affects other important aspects of how a political system functions including how long its cabinets last if the system is parliamentary lijphart 1984 and how elections translate into citizen control of policymakers powell 1989 the number of parties is a most important feature in a country s politics and therefore in comparative studies also we shall discuss the ways of defining this number operationally further on what determines the number of parties history present issues and institutions all intervene but if one had to give a single major factor it would have to be the district magnitude m that is the number of seats allocated in an electoral district rae 1967 the well known duverger rule says that one seat districts tend to lead to two party systems while multiseat districts tend to go with multiparty systems duverger 1951 1954 see also riker 1982 one can be more precise since even within the multiseat category a larger m tends to go with a larger number of parties but before we can attempt to define a relationship between district magnitude and the number of parties we need to establish a means to measure the number of parties

consequences of environmental tax reform for involuntary unemployment and welfare we investigate the welfare effects of environmental tax reform i e raising environmental taxes and using the proceeds to reduce distortionary taxes on labour the framework of analysis is a small open economy with involuntary unemployment due to a rigid consumer wage environmental tax reform boosts not only environmental quality but also employment if substitution between labour and resources is easy the production share of the fixed factor is large and the initial tax rates on resources and profits are small if the initial tax system is sub optimal with a negligible tax on resources profits rise as well

historic paths and future expectations the macroeconomic impacts of the offshore wind technologies in the uk abstract offshore wind power osw plays a key role within the uk strategy for a transition towards a low carbon economy offering vast potential for establishing a high tech manufacturing industry previous experiences in the onshore sector owp suggest the uk might fail in fully capturing these macroeconomic benefits in this work we investigate the history of uk renewable policies comparing its national strategy to those of other major osw export countries through the use of a numerical general equilibrium model we quantify the macroeconomic impacts under three scenarios a baseline which relies on previous estimates and foresee limited local content a contamination scenario where the uk content reaches the same levels of owp and a non myopic scenario where investors expect governmental support to decrease or disappear replicating a common path of past renewable policies we identify the uk as a fdi oriented country our results suggest that increasing the share of locally sourced capital goods in osp to owp level could generate larger income and employment effects in the uk economy we find that under forward looking investors the economic benefits are significantly lower than the case of myopic agents our results show an inherent conflict with stated purposes of uk policy for osw

party system nationalization and the scope of public policy the importance of cross district constituency similarity party system nationalization is supposed to result in the provision of nationally focused policy including spending priorities with widespread benefits conversely democracies characterized by parties with geographically narrower patterns of support are suspected of parochial policies including targetable spending the authors show that party system nationalization alone is not sufficient to generate national benefits in addition governing parties constituents must be similar across districts nationalization can occur because parties are making the same appeal to similar constituents across different electoral districts but it can also occur because parties are skillfully tailoring different appeals to diverse constituencies across districts in the latter case the authors expect to see the targeted spending priorities typically associated with party systems that are not nationalized the authors test for the conditional effect of party system nationalization in 36 elections across 20 countries u

is there a case for community based equity participation in scottish on shore wind energy production gaps in evidence and research needs abstract this paper considers the potential rural development benefits of community ownership or co ownership or equity participation of on shore wind energy developments and argues for further research to assess the case for enhanced policy support for such ownership structures previous authors have argued that if communities are given a stake in renewables enterprises this will support the scottish government s community empowerment agenda increase economic activity in rural scotland and provide substantial benefits to rural communities others have argued that community ownership schemes may decrease community resistance to on shore wind developments and set beneficiary communities on a low carbon development pathway through stimulating energy citizenship however empirical evidence to support all of these claims remains limited focussing on scotland where the growth of on shore wind has been strong in recent years the paper reviews the current policy environment and governance context before reviewing evidence in relation to the various arguments for community ownership or shared equity in the case of on shore wind energy it identifies several areas where further research is urgently required to guide policy makers so as to ensure that both rural development objectives and renewable energy targets are met

the economics of distributed energy generation a literature review the uk electricity system is likely to face dramatic technical and institutional changes in the near future current uk energy policy focuses on the need for a clean affordable and secure energy supply decentralisation of the electricity system is recognised as one means of achieving efficient and renewable energy provision as well as addressing concerns over ageing electricity infrastructure and capacity constraints in this paper we provide a critical literature review of the economics of increased penetration of distributed energy generation we find that there exists a large volume of research considering the financial viability of individual distributed generation technologies and we are necessarily selective in our review of these studies given the wide variety of technologies that the definition of distributed generation encompasses however there are few studies that focus on the pure economics of individual or groups of distributed energy generators and even fewer still based on the economy wide aspects of distributed generation in view of this gap in the literature we provide suggestions for future research which are likely to be necessary in order adequately to inform public policy on distributed generation and its role in the future of uk energy supply

optimal environmental taxation in the presence of other taxes general equilibrium analyses this paper examines the optimal setting of environmental taxes in economies where other distortionary taxes are present we employ analytical and numerical models to explore the degree to which in a second best economy optimal environmental tax rates differ from the rates implied by the pigovian principle according to which the optimal tax rate equals the marginal environmental damages both models indicate contrary to what several analysts have suggested that the optimal tax rate on emissions of a given pollutant is generally less than the rate supported by the pigovian principle moreover the optimal rate is lower the larger are the distortions posed by ordinary taxes numerical results indicate that previous studies may have seriously overstated the size of the optimal carbon tax by disregarding pre existing taxes this abstract was borrowed from another version of this item

social cleavages and the number of parties how the measures you choose affect the answers you get this article explores the issues surrounding the operationalization and measurement of social cleavages in a large n context from the perspective of the party systems literature it first highlights the difficulty of measuring the concept which it argues has impeded hypothesis testing and suggests strategies for improving upon existing measures it then demonstrates that the conclusions we draw about well known hypotheses linking social cleavages to the number of electoral parties in legislative elections depend upon the measure we employ hence the article makes the case that how we measure social cleavages matters

a typology and assessment of multi sector regional economic impact models loveridge s 2004 a typology and assessment of multi sector regional economic impact models reg studies38 305 317 this paper provides a summary and critical review of the types of multi sector models with inter sectoral linkages commonly used to predict the total impact of an event plant opening closing or policy change on the regional economy the following model types are included economic base input output social accounting matrix integrated econometric input output and computable general equilibrium models appropriate uses of the various modelling approaches are presented along with some general operating principles and ethical considerations the paper concludes with directions for future research loveridge s 2004 une typologie et un bilan des modeles des impacts economiques regionaux multi sectoriels reg studies38 305 317 cet article cherche a faire le resume et la critique des typologies de modeles multi sectoriels qui ont des liens intersectoriels et dont on se sert frequemm

greening regional development employment in low carbon and renewable energy activities abstractgreening regional development employment in low carbon and renewable energy activities regional studies the promotion of low carbon and renewable energy lc re activities has become an important element of development policy in many regional economies in practice defining and measuring these activities presents conceptual methodological and operational challenges this paper illustrates these difficulties using three recent estimates of lc re jobs for scotland it proposes that information on the lc re sector should be embedded in a set of input output accounts this would facilitate the planning implementation and monitoring of lc re based regional development policy

modeling employment dynamics with state dependence and unobserved heterogeneity this study extends existing work on the dynamics of labor force participation by distinguishing between full time and part time employment and by allowing unobserved heterogeneity in the effects of previous employment outcomes children and education on labor supply behavior in addition unobserved heterogeneity may feature autocorrelation and correlated random effects the results reveal significant variation in the effects of children and education on labor supply behavior moreover the omission of random coefficients and autocorrelation biases estimates of state dependencies on average temporary shocks that increase the rate of part time employment lead subsequently to lower rates of nonemployment than do shocks that temporarily increase the rate of full time work the article has additional online supplementary material

understanding community benefit payments from renewable energy development abstract it is increasingly common for renewable energy projects to make financial or in kind payments to local communities these arrangements are variously described as benefits payments or compensation schemes similar approaches are now being recommended for other forms of development with potential to engender opposition from local communities e g nuclear power and fracking while such payments are common the level of payment the institutional frameworks involved and the nature of discourse varies greatly existing literature has sought to record rather than explain the diversity of arrangements to a large extent this diversity is rooted in the power dynamic between developer and community three uk case studies are used to highlight the diversity of arrangements meanings and power balances within benefits arrangements finally a typology is developed to illustrate the spectrum of potential arrangements this typology gives insight into why various arrangements emerge in response to their specific contexts

the link between green taxation and economic growth on co2 emissions fresh evidence from malaysia abstract this paper explores how carbon taxation and economic growth affect environment hazards in malaysia using time series data over the period 1974 2010 we applied cointegration and causality approaches to determine the long term cointegration and direction of causal relationship between these variables based on the results we found the cointegration relationship between the variables furthermore we noted that although kuznets theory i e inverted u shaped curve between economic growth and co 2 emissions is valid for malaysia the carbon taxation policy is ineffective to control co 2 emissions the causality analysis revealed that there is a bidirectional relationship between carbon tax and co 2 emissions economic growth granger causes co 2 emissions and carbon tax granger causes economic growth to enhance the awareness concerning pollution issues governments should rely on alternative instruments that may give benefit to the taxpayers and reduce pollution which is the pivotal issue to be tackled globally

demographic diversity and district level party systems scholars of electoral politics have long argued that the size of a party system is jointly determined by social diversity and district magnitude however no clear consensus exists regarding the best operationalization of the diversity of a society furthermore the relationship between diversity and electoral rules on one hand and the effective number of parties on the other hand has never been tested at the level of the electoral district in a cross national comparative context this article aims to fill both holes and introduces the concept of cross district diversity i argue that the extent of cross district diversity in a country exerts a substantial qualifying impact on the relationship between district level diversity and the effective number of parties support for this finding emerges from a multilevel regression analysis that includes thousands of electoral districts in a diverse set of 29 democracies

taxation in empirical labour supply models lone mothers in the uk taxation has become an integral part of the empirical specification of labour supply models the opportunity set available to workers is made significantly non linear by the workings of the tax and benefit system and this in turn complicates an individual s optimal choice of labour supply in such a framework the relationship between hours of work gross wages and other income is necessarily non linear moreover the marginal wage and virtual income at any chosen hours of work are an implicit function of the hours choice itself to guarantee a unique solution to this choice problem consumer theory places integrability conditions on the form of wage and income derivatives of labour supply similarly once the problem is made stochastic and econometric methods are utilised to recover unknown parameters a coherency condition is required to define a well behaved econometric model see heckman i 978 and gourieroux et al i980 in the labour supply and taxation framework these two conditions are quite naturally closely related they do however have implications for labour supply specification and the reliability of tax reform simulations based on empirical labour supply models for the case of the linear labour supply model macurdy et al i990 document the potential for misleading results that may occur once a linear model is utilised in a framework with non linear taxation such a specification all but guarantees a global forward sloping labour supply function which is not a requirement of economic theory and is empirically often too restrictive in this paper we focus on two issues the first relates to the specification of a flexible model allowing backward bending labour supply the second issue relates to the statistical coherency of such a model in the presence of non linear taxation the empirical application in this paper concerns the labour supply behaviour of lone mothers in the uk this group face a highly non linear budget constraint the analysis of their labour supply responses is crucial for the design of effective policy reforms we use a labour supply specification suggested by

economic and socio economic assessment methods for ocean renewable energy public and private perspectives this paper provides a comprehensive review of the current state of the art of the economics and socio economics of ocean renewable energy ore the many ways in which the viability and impacts of an ore project are assessed and an analysis of the current weaknesses issues or inappropriateness of the metrics and methodologies used in their definition and presentation the outcomes of this paper are anticipated to benefit the ore and wider renewable sector as a whole the review revealed that for the most part the current study of economics and socio economics of ore remain separate and discrete areas of research the economic methods utilised appear to be comprehensive but are limited to project or private investor level the methods identified for socioeconomic assessment fall between traditional and now routine environmental assessment approaches and more novel holistic approaches such as ecosystem services and life cycle assessment the novel section of the paper explored the connectivity between the economics and socio economics of ore in relation to project developments and policy planning a visualisation method was created of concentric rings intersected by related axis of economic socio economic and environment and enabled the examination of the benefits arising from the connectivity between the two spheres the concept of sustainable development process and the integration of environmental assessment for ore was also explored and how it responds to differing stakeholder aspirations and interpretations the analysis revealed that there was a divergence between public and private economic and socioeconomic assessments for ore environmental assessment is primarily a public responsibility but with significant inputs from the private developer involved while economic assessments are conducted primarily by the developer and or investor at their own behest however the two spheres of economic and socio economic for ore are highly connected and synergistic and must be examined in a holistic manner

a review of the role and remit of the committee on climate change domestic action on climate change requires a combination of solutions in terms of institutions and policy instruments one way of achieving government carbon policy goals may be the creation of an independent body to advise on or set monitor policy this paper critically assesses the committee on climate change ccc which was created in 2008 as an independent body to help move the uk towards a low carbon economy we look at the motivation for its creation in particular we consider its ability to overcome a time inconsistency problem by comparing it to another independent body the monetary policy committee of the bank of england in practice the ccc appears to be the inverse of the monetary policy committee in that it advises on what the policy goal should be rather than being held responsible for achieving it the ccc incorporates both advisory and monitoring functions to inform government and achieve a credible carbon policy over a long time frame this is a similar framework to that adopted by stern 2006 but the ccc operates on a continuing basis and also incorporates a unique climate change monitoring function

estimating a wage curve for britain 1973 90 following a w phillips s 1958 original work on the united kingdom applied research on unemployment and wages has been dominated by the analysis of highly aggregated time series data sets however it has proved difficult with such methods to uncover statistically reliable models this paper adopts a different approach it uses macroeconomic data on 175 000 british workers from 1973 to 1990 to provide evidence for the existence of a negatively sloped relationship linking the level of pay to the local rate of unemployment the paper casts doubt on standard ideas in macroeconomics regional economics and labor economics copyright 1994 by royal economic society