support systems for the diffusion of renewable energy technologies an investor perspective concern over climate change impacts and the projected depletion of fossil fuels has urged more governments to adopt policies that stimulate the diffusion of renewable energy technologies ret with an increasingly diverse suite of support instruments the question emerges as to which instruments or combinations are able to achieve faster more substantial diffusion results although various support instruments were extensively addressed in policy studies there is still no consensus this is partly because many policy studies take a policy maker approach in comparing support instruments leaving relationships between policy design and policy results as a black box this paper proposes an investor oriented perspective to analyze the diffusion potential of support systems for ret the main argument is that it is not the type of support instrument but rather its risk profitability characteristics that influence investor behavior and the rate of diffusion the two instruments most frequently discussed and compared are the feed in tariff and the quota model the analysis in this paper concludes that policy design is crucial while often feed in tariffs are applauded and quota system feared feed in tariffs may also bring about disappointing diffusion results when poorly designed while quota systems may be also conceived as attractive instruments for independent power producers

faulting internationally coordinated fiscal stimulus fiscal policy has been actively deployed globally by g20 governments to counter the impact of the global financial crisis on the real sectors of their economies this coordinated fiscal response has involved a mix of new public expenditure including on infrastructure tax relief and increased income transfers to favoured groups in the end the case for fiscal stimulus rests on the presumption that it works in theory along lines first proposed by keynes yet keynesian fiscal activism founded on this presumption is contestable on numerous theoretical and practical grounds this paper addresses key concerns about the consequences of using fiscal stimulus it proposes that discretionary fiscal measures that have increased budget deficits and public indebtedness for economies worldwide entail significant macroeconomic costs and risks and that as a corollary reducing unproductive public spending can be expansionary

supermajority voting requirements for tax increases evidence from the states abstract this paper measures the effect of state level supermajority requirements for tax increases on tax rates unobserved attitudes towards taxation tend to influence both the adoption of supermajority requirements and tax policy consequently one cannot distinguish between the effect of these requirements and their correlation with these unobserved attitudes a model is presented in which legislatures controlled by a pro tax party adopt a supermajority requirement to reduce the majority party agenda control the propensity of pro tax states to adopt supermajority requirements results in an underestimate of the true effect of these requirements on taxes to correct this identification problem the paper first uses fixed effects to control for unobserved attitudes and then employs instruments that measure the difficulty of amending state constitutions the paper concludes that supermajority requirements have significantly reduced taxes

bicameralism and its consequences for the internal organization of legislatures theories of organization of legislatures have mainly focused on the u s congress explaining why committee systems emerge there but not explaining variance in organization across legislatures of different countries to analyze the effects of different constitutional features on the internal organization of legislatures we adopt a vote buying model and consider the incentives to delegate decision rights in a game among legislative chambers we show how presidential veto power and bicameral separation can encourage a legislative chamber to create internal veto players or supermajority rules while a unicameral structure can encourage legislators to delegate power to a leader

voting on majority rules political economy models usually take as given the rules which govern the political decision making with the simple majority rule being the most popular model in this paper we develop a simple yet powerful positive model where the majority rule governing future elections is itself chosen in an election we observe a large variety of majority rules governing elections in the real world on the one side referenda are usually decided by a simple majority at the other extreme many international organizations require unanimity in votes among the member states in the european union s council of ministers some proposals require only a simple majority some a supermajority of about 71 62 votes out of 87 and some require unanimous consent 1 explicit supermajorities 2 are required in most countries for a change of the constitution but in some u s states also for a tax raise even more important could be what we might call implicit supermajorities in parliamentary systems with a strong committee organization a legislative proposal usually needs the support of both the respective committee and the house in parliamentary systems with two chambers certain legislative proposals need the support of both chambers 3 previous rationalizations of qualified majority rules focus on the problem of condorcet cycles under simple majority rule in n dimensional elections and on commitment problems see our literature review below our model presents a new rationale for rules requiring qualified majorities in elections we analyse an overlapping generations model of voting on reform opportunities which we model as similar to investment projects at first there is a cost and then there are benefits since voters have a finite lifetime old voters will be less keen on reforms

sources procedures and microeconomic effects of innovation fabio arcangeli paul david frank engelman christopher freeman massimo moggi richard nelson luigi orsenigo nathan rosenberg michele salvati g n von tunzelman two anonymous referees and the participants at the meeting of the committee on distribution growth and technical progress of the italian national research council cnr rome november 16 1985 have helped with various redraftings a particularly grateful acknowledgment is for the insightful and patient help of moses abramovitz this work has been undertaken at the science policy research unit spru university of sussex as part of the research program of the designated research centre sponsored by the economic and social research council esrc earlier support to the research that led to this paper by the italian national research council cnr is also gratefully acknowledged the statistical research has been undertaken with the assistance of stephano brioschi ilaria fornari and giovannu prennushi

optimal taxation and fiscal constitution abstract assuming a world with excessive taxes the focuses of this paper are political mechanisms that ensure efficiency enhancing restraints on taxes in particular it is shown that supermajority requirements to approve tax increases as currently used in some us states is the means of attaining this objective their relationship to another such mechanism prevalent in earlier centuries that of franchise restrictions is discussed

political selection and persistence of bad governments we study dynamic selection of governments under different political institutions with a special focus on institutional flexibility a government consists of a subset of the individuals in the society the competence level of the government in office determines collective utilities e g by determining the amount and quality of public goods and each individual derives additional utility from being part of the government e g rents from holding office we characterize the dynamic evolution of governments and determine the structure of stable governments which arise and persist in equilibrium in our model perfect democracy where current members of the government do not have veto power over changes in governments always leads to the emergence of the most competent government however any deviation from perfect democracy to any regime with incumbency veto power destroys this result there is always at least one other less competent government that is also stable and can persist forever and even the least competent government can persist forever in office we also show that there is a nonmonotonic relationship between the degree of incumbency veto power and the quality of government in contrast in the presence of stochastic shocks or changes in the environment a regime with less incumbency veto power has greater flexibility and greater probability that high competence governments will come to power this result suggests that a particular advantage of democratic regimes with a limited number of veto players may be their greater adaptability to changes rather than their performance under given conditions finally we show that royalty like dictatorships may be more successful than junta like dictatorships because in these regimes veto players are less afraid of change

resistance to reform status quo bias in the presence of individual specific uncertainty comment why do governments so often fail to adopt policies which economists consider to be efficiency enhancing our answer to this question relies on uncertainty regarding the distribution of gains and losses from reform we show that there is a bias towards the status quo and hence against efficiency enhancing reforms whenever some of the individual gainers and losers from reform cannot be identified beforehand there are reforms which once adopted will receive adequate political support but would have failed to carry the day ex ante the argument does not rely on risk aversion irrationality or hysteresis due to sunk costs jel d72 f13 why do governments so often fail to adopt policies that economists consider to be efficiency enhancing this is one of the fundamental questions of political economy the answer usually relies on what may be

information aggregation rationality and the condorcet jury theorem the condorcet jury theorem states that majorities are more likely than any single individual to select the better of two alternatives when there exists uncertainty about which of the two alternatives is in fact preferred most extant proofs of this theorem implicitly make the behavioral assumption that individuals vote sincerely in the collective decision making a seemingly innocuous assumption given that individuals are taken to possess a common preference for selecting the better alternative however in the model analyzed here we find that sincere behavior by all individuals is not rational even when individuals have such a common preference in particular sincere voting does not constitute a nash equilibrium a satisfactory rational choice foundation for the claim that majorities invariably do better than individuals therefore has yet to be derived

tales of fiscal adjustment fiscal adjustments why they can be expansionary this paper examines the evidence on fiscal adjustments in oecd countries from the early 1960s to today the results shed light on the recently observed phenomenon of fiscal tightening that produces non keynesian expansionary effects one interpretation is that a serious fiscal tightening increases demand wealth rises when future tax burdens decline and when interest rates decline credibility is restored and inflation or default risks abate both consumption and investment rise for this effect to produce an expansion the tightening must be sizeable and occur after a period of stress when the budget is quickly deteriorating and public debt is building up another interpretation emphasizes the supply side typically a fiscal consolidation based on tax increases is short lived to be long lasting it must include cuts in public employment transfers and government wages to be politically possible such a policy must be supported by trade unions these measures result in more efficient labour markets and boost the supply side based both on statistical evidence and on a detailed analysis of ten cases of major fiscal adjustment this article provides cautious support to the supply side view without denying a more limited role for the demand side channel alberto alesina and silvia ardagna

testing the endogenous growth model public expenditure taxation and growth over the long run endogenous growth models such as barro 1990 predict that government expenditure and taxation will have both temporary and permanent effects on growth we test this prediction using panels of annual and period averaged data for oecd countries during 1970 95 isolating long run from short run fiscal effects our results strongly support the endogenous growth model and suggest that long run fiscal effects are not fully captured by period averaging and static panel methods unlike previous investigations our estimates are free from biases associated with incomplete specification of the government budget constraint and do not appear to result from endogeneity of fiscal or investment variables jel classification h30 o40 validation du modele de croissance endogene depenses publiques fiscalite et croissance a long terme des modeles de croissance endogene comme celui de barro 1990 predisent que depenses gouvernementales et fiscalite vont avoir des effets temporaires et permanents sur la croissance on met cette prevision au test a l aide de donnees annuelles et pour certaines moyennes couvrant des sous periodes pour les pays de l ocde 1970 95 dans le but de departager les effets a court et a long terme les resultats valident fortement le modele de croissance endogene et suggerent que les effets fiscaux a long terme ne sont pas pleinement captures par des methodes utilisant des moyennes ou des methodes statiques contrairement aux resultats d enquetes anterieures les resultats proposes ne souffrent pas de distorsions attribuables a une specification incomplete de la contrainte budgetaire du gouvernement et ne semblent pas etre l effet d echo de l endogeneite des variables fiscales et de l investissement

on the faustian dynamics of policy and political power this paper examines the faustian dynamics of policy and power we posit a general class of dy namic games in which current policies affect the future distribution of political power resulting in the following faustian trade off if the current ruler chooses his preferred policy he then sacrifices future political power yet if he wants to preserve his future power he must sacrifice his present policy objec tives the trade off comes from the fact that the current political ruler pivotal voter cannot uncouple the direct effect of his policy from its indirect effect on future power a policy endogenous pe equilibrium describes this endogenous transfer of power and the resulting evolution of policy and political power over time we show that the faustian trade off in a pe equilibrium is decomposed into two basic rationales the political preservation effect induces more tempered policy choices than if one s policy choice did not affect one s political fortunes however the reformation effect induces more aggressive policies in order to exploit the productivity gains from policies chosen by even more aggressive successors we distinguish between political systems that give rise to monotone faustian dynamics political power that progressively evolves towards more fiscally liberal types of leaders and cyclical faustian dynamics political power that oscillates between liberal and conservative types of leaders in each case we show that the faustian trade off moderates the choices of each type of leader

dynamic governance of clean energy markets how technical innovation could accelerate climate policies abstract this article explores the governmental means to accelerate technical progress in climate protection it is based on selected best practice cases in which the diffusion of low carbon technologies has been accelerated by ambitious policies the empirical cases involve not just renewable energies but also energy efficiency the latter being considered more difficult in terms of governance the examples are taken from advanced oecd countries as well as from emerging economies this article will explore which factors have caused this dynamic development the conclusion reached will show that the interaction of positive feedback mechanisms which has already been described as virtuous cycle provides only a plausible theoretical explanation if the policy cycle is added to the market cycle and the innovation cycle climate policy should not only define ambitious targets but also address all three feedback mechanisms

on the ineffectiveness of tax policy in altering long run growth harberger s superneutrality conjecture abstract in 1964 harberger conjectured that although theory predicts that changes in tax rates affect investment and growth in the long run in practice tax policy is an ineffective instrument to influence growth this paper provides theoretical and empirical evidence in favor of this view the growth effects of tax policy in the class of endogenous growth models driven by human capital accumulation are examined and numerical simulations of these models confirm the results harberger predicted cross country panel regressions estimated using a new method for measuring effective tax rates produce significant investment effects from taxes that are consistent with negligible growth effects these results are robust to the introduction of other growth determinants

optimal voting rules modern social choice theory following kenneth arrow treats voting as a method for aggregating diverse preferences and values an earlier view initiated by marquis de condorcet is that voting is a method for aggregating information voters opinions differ because they make errors of judgment absent these errors they would all agree on the best choice the goal is to design a voting rule that identifies the best choice with highest probability this paper examines maximum likelihood estimation surprisingly the optimal rule can also be axiomatized by variations of arrow s axioms

fiscal policy expenditure composition and growth in low income countries abstract this paper assesses the effects of fiscal consolidation and expenditure composition on economic growth in a sample of 39 low income countries during the 1990s the paper finds that strong budgetary positions are generally associated with higher economic growth in both the short and long terms the composition of public outlays also matters countries where spending is concentrated on wages tend to have lower growth while those that allocate higher shares to capital and nonwage goods and services enjoy faster output expansion finally initial fiscal conditions also have a bearing on the nexus between fiscal deficits and growth

public sector deficits and macroeconomic performance in the 1980s chronic public sector deficits forced countries to undertake fiscal adjustment the need to face hard choices continues in the 1990s but the problem is not a simple and easily diagnosed one with an obvious solution rather public sector deficits have had widely differing consequences high inflation in some countries low inflation but also low investment and growth in others and in still others no evident short term macroeconomic spillovers this book presents the findings of a world bank research project designed to shed light on the complex dynamics of public sector deficits it includes an in depth examination of eight countries argentina chile colombia cote d ivoire ghana morocco pakistan and zimbabwe these cases are analyzed within a comprehensive theoretical framework elaborated for the study and in conjunction with cross country data from a larger set the book draws the following conclusions the ways chosen to finance deficits money creation debt or arrears go far to explain medium term financial and macroeconomic imbalances but in the short term these relations are blurred deficits tend to be bad for growth they increase financial and price instability and crowd out private investment public saving typically reduces private saving only slightly increasing public saving is a very effective policy instrument for raising national saving fiscal adjustment typically leads to a lower trade deficit and a moredepreciated real exchange rate finally the blame for large systemic public deficits must be placed not on bad luck but on unwise policy choices and conversely sound fiscal policies can set a country on a path leading to stability and growth

endogenous institutions and political extremism abstract the election of extreme political leaders is often associated with changes in political institutions this paper studies these phenomena through a model in which the median voter elects a leader anticipating that he will impose institutional constraints such as constitutional amendments judicial appointments or the implicit threat of a coup that influence the behavior of future political challengers it is typically optimal for the median voter to elect an extreme incumbent when democracy is less fully consolidated when the costs of imposing institutional constraints are intermediate and when the distribution of potential challengers is asymmetric the median voter typically elects a more right wing incumbent when the distribution of potential challengers shifts to the left implications of the model for the consolidation of democracy and institutional constraints are discussed as are several related mechanisms through which politicians ability to affect institutions may lead voters to optimally elect extremists

fiscal spending and economic growth some stylized facts using an event analysis this paper complements the cross country approach to the study of fiscal correlates of growth data on fiscal expenditures and growth for a database of 140 countries 118 developing countries over 1972 2005 are reorganized around turning points providing a summary but encompassing description of what is in the data for this sample the probability of occurrence of a fiscal event is about 10 and the probability of a growth event once a fiscal event had occurred is around 26 for developing countries fiscal events followed by growth events occur under situations of i significantly lesser deficit ii fewer resources devoted to non interest general public services and iii shift in primary expenditures toward transport communication after controlling for the growth inducing effects of positive terms of trade shocks and of trade liberalization reform probit estimates indicate that a growth event is more likely to occur in a developing country when surrounded by a fiscal event moreover the probability of occurrence of a growth event in the years following a fiscal event is greater the lower is the associated fiscal deficit confirming that success of a growth oriented fiscal expenditure reform is associate with a stabilized macroeconomic environment through limited primary fiscal deficit

fiscal consolidations quality economic conditions and success recent research has demonstrated theimportance of good quality of fiscaladjustments for the success of governmentbudget consolidations we extend thisapproach to analyze the importance of theeconomic conditions in which fiscalconsolidations are started for theirsuccess the cyclical positions of thedomestic and international economy theinitial debt level and the stance of fiscalpolicy in the oecd are all importantdeterminants of the likelihood of fiscalconsolidations they also affect thegovernment s choice of consolidationstrategy making them importantdeterminants of the success of fiscalconsolidations in contrast the monetarypolicy stance plays only a negligible rolefor fiscal consolidations we use theanalysis to test for any maastricht effectson the performance of european governmentsduring the 1990s such effects are weak atbest and occurred only during the firsthalf of the decade

dynamic stability and reform of political institutions abstract this paper examines endogenous institutional change in a class of dynamic political games the political aggregation rules used at date t 1 are instrumental choices under rules at date t effectively rules are players who can strategically delegate future policy making authority to different rules a political rule is stable if it selects itself a reform occurs when an alternative rule is selected the stability of a political rule is shown to depend on whether its choices are dynamically consistent for instance simple majority rules can be shown to be dynamically consistent in many common environments where wealth weighted voting rules are not the result extends to political rules that incorporate private activities such as extra legal protests threats or private investment the approach is one way of understanding various explanations of institutional change proposed in the literature a parametric model of public goods provision gives an illustration

flexibility vs protection from an unrepresentative legislative majority abstract we derive the equilibrium institutional design of representative democracy by citizens who first vote on the supermajority required for a new policy to be adopted and then delegate decision making to a legislature that selects policy given that institutional constraint a legislature that can freely tailor policy to reflect society s current preferences is good however the views of the median legislator or agenda setter may differ from the median citizen s and an unchecked legislature can implement bad policy we characterize how the primitives describing the preferences of actors and the status quo policy affect the equilibrium degree of legislative flexibility

composicao dos gastos publicos e crescimento economico dos municipios brasileiros the goal of this paper is to evaluate the eects of public expenditure composition on the growth of per capita income of the brazilian municipalities in the period 1991 2000 the model by devarajan et alii 1996 was used as reference to verify how structural variables such as education income distribution and violence in addition to the fiscal policy aect local economic growth controlling for the level of per capita income the results indicate that municipalities with per capita income below the poverty line as defined by the world bank have a higher necessity for current spending than those which are above that line estimated quadratic functional forms allowed deriving optimal compositions for the public spending which maximize economic growth according to the position of the municipal district in relation to the poverty line

choosing how to choose self stable majority rules and constitutions constitutional arrangements affect the decisions made by a society we study how this effect leads to preferences of citizens over constitutions and ultimately how this has a feedback that determines which constitutions can survive in a given society constitutions are stylized here to consist of a voting rule for ordinary business and possibly a different voting rule for making changes to the constitution we define an equilibrium notion for constitutions called self stability whereby under the rules of a self stable constitution the society would not vote to change the constitution we argue that only self stable constitutions will endure we prove that self stable constitutions always exist but that most constitutions even very prominent ones may not be self stable for some societies we show that constitutions where the voting rule used to amend the constitution is the same as the voting rule used for ordinary business are dangerously simplistic and there are many societies for which no such constitution is self stable we conclude with a characterization of the set of self stable constitutions that use majority rule for ordinary business

technological learning in energy environment economy modelling a survey abstract this paper aims at providing an overview and a critical analysis of the technological learning concept and its incorporation in energy environment economy models a special emphasis is put on surveying and discussing through the so called learning curve both studies estimating learning rates in the energy field and studies incorporating endogenous technological learning in bottom up and top down models the survey of learning rate estimations gives special attention to interpreting and explaining the sources of variability of estimated rates which is shown to be mainly inherent in r d expenditures the problem of omitted variable bias the endogeneity relationship and the role of spillovers large scale models survey show that despite some methodological and computational complexity related to the non linearity and the non convexity associated with the learning curve incorporation results of the numerous modelling experiments give several new insights with regard to the analysis of the prospects of specific technological options and their cost decrease potential bottom up models and with regard to the analysis of strategic considerations especially inherent in the innovation and energy diffusion process in particular the energy sector s endogenous responses to environment policy instruments top down models

the keynesian multiplier effect reconsidered the keynesian multiplier effect is reinterpreted and several issues that may have misled assessments of the effect of fiscal spending are discussed it is shown that even in the textbook keynesian framework some transfer policy reduces aggregate demand and that public works spending may completely crowd out private consumption useless public works are found to be equivalent to transfers although they increase accounting national income more than transfers do the net effect of fiscal spending on national benefits is explored and shown to equal only the direct benefit created by the spending

a global and local endogenous experience curve model for projecting future uptake and cost of electricity generation technologies abstract a global and local learning model gallm has been developed to project the cost and global uptake of different electricity generation technologies to the year 2050 this model features three regions endogenous technological learning within and across those regions various government policies to facilitate technological learning and a penalty constraint which is used to mimic the effect market forces play on the capital cost of electricity generation technologies this constraint has been added as market forces have been a strong factor in technology pricing in recent years global regional and component experience curves have been developed for some technologies the model with the inclusion of these features projects a diverse range of technologies contributing to global electricity generation under a carbon price scenario the penalty constraint leads to gradual and continual installations of technologies and because the constraint provides a disincentive to install too much of a technology it reduces the impact of uncertainty in the learning rate alternative forms of the penalty constraint were tested for their suitability it was found that with a zero and lower cost version of the constraint photovoltaics are installed in a boom and bust cycle which is not supported by past experience when the constraint is set at a high level there are fewer installations

dynamic pivotal politics we analyze a dynamic extension of a parsimonious model of lawmaking in which preferences evolve over time and today s policy becomes tomorrow s status quo unlike in existing models of pivotal politics policy makers voting behavior depends on the institutional environment and on their expectations about future economic and political shocks relative to sincere voting the equilibrium behavior exhibits a strategic polarization effect which increases with the degree of consensus required by the institution the volatility of the policy environment and the expected ideological polarization of the future policy makers the equilibrium behavior also exhibits a strategic policy bias which works against any exogenous policy bias embedded in the voting rule our analysis implies that the existing literature underestimates the inertial effect of checks and balances and overestimates the impact of institutional biases such as fiscally conservative budget procedures

subsidies in carbon finance for promoting renewable energy development abstract faced with decreasing exhaustible nonrenewable resources and climate change resulting from the use of fossil energy it is urgent to accelerate the development of renewable energy but the development of renewable energy requires abundant financial support both from banks and governments this article considers bank loans to develop renewable energy and highlights the effects of government subsidies by using a microeconomic model and taking all stakeholders including the government banks and shareholders of the firm into consideration this study finds that government subsidies raise outputs and debt levels of renewable energy firms and improve shareholder value as well more importantly financial debts stimulate firms outputs but decrease the net profit per unit of debt due to the limited liability effects finally subsidy policy plays a critical role in renewable energy development because environmental efficiencies of subsidies decrease with the subsidy degree other valuable conclusions would be achieved if principal agent problem and other corporate governance factors are employed

the effect of local and global learning on the cost of renewable energy in developing countries high upfront costs are a critical barrier for investments in clean infrastructure technologies in developing countries this paper uses a case study of thailand s electricity sector to create realistic estimates for the relative contributions of local and global technological learning to reducing these cost in the future and discusses implications of such learnings for international climate policy for six renewable electricity technologies we derive estimates for the share of locally and globally sourced goods and services and analyze the effects of local and global learning during the implementation of thailand s renewable energy targets for 2021 our results suggest that in aggregate the largest potential for cost reduction lies in local learning this finding lends quantitative support to the argument that the conditions enabling local learning such as a skilled workforce a stable regulatory framework and the establishment of sustainable business models have a more significant impact on cost of renewable energy in developing countries than global technology learning curves the recent shift of international support under the united nations framework convention on climate change towards country specific technology support is therefore promising however our results also show that the relative importance of local and global learning differs significantly between technologies and is determined by technology and country characteristics this suggests that international support need to consider both the global perspective and local context and framework conditions in order to reap the full benefits of technological learning across the wide range of clean technologies

regulation and competition issues in thai electricity sector abstract this paper explores the issues related to regulatory reform and liberalisation leading toward competition in the thai electricity sector which is still under the monopoly control of state owned enterprises soes following an overview of the current market structure of the thai electricity sector the process of liberalisation and deregulation that contributes to the uncompetitive market structure under soes control is examined the author asserts that there are problems within the energy commission and the energy industry act be 2550 2007 that contribute to the continuance of an uncompetitive electricity supply possible reforms to the thai electricity regulation are proposed with the aim of creating market competition and efficiency in the thai electricity sector

green supply chain performance with cost learning and operational inefficiency effects environmental issues are receiving significant attention from the public accelerating the development of green supply chain in operations management this study focuses on the green supply chain performance in a single manufacturer retailer setup in which the manufacturer determines energy efficiency level and wholesale price while the retailer decides on sales price the unit production cost is jointly affected by cost learning and operational inefficiency effects open loop feedback and myopic equilibria are subsequently derived and the corresponding supply chain performance and profit distribution are analyzed the main results show that forward looking behavior is preferred to myopic one for channel members feedback equilibrium is beneficial to the manufacturer but is harmful to the retailer the supply chain efficiencies in forward looking and myopic situations are lower than the static supply chain efficiency which results from cost learning and operational inefficiency effects as well as non price variable the manufacturer and the retailer extract more profits under certain conditions i e high cost learning effect large energy efficiency effectiveness low operational inefficiency effect or discount rate however the corresponding supply chain efficiencies decrease and the manufacturer s profit proportions are less than 2 3 investigation of supply chain performance with competition from multiple retailers implies that the effects of system parameters on supply chain performance keep the same directions of single manufacturer retailer setup while competition improves supply chain efficiency and manufacturer s profit proportion this work contributes in involving cost learning and operational inefficiency effects simultaneously in a dynamic environment to explore supply chain performance

public spending reallocations and economic growth across different income levels this paper examines the effects of public spending reallocations on economic growth assembling a disaggregated public spending dataset of 83 countries over the 1970 2011 period we show that spending reallocations towards education from health and social protection have significant growth promoting effects across a wide range of countries income levels however income heterogeneity matters particularly when reallocations involve infrastructure spending specifically a reallocation from this spending to education also promotes growth albeit primarily when the income level is low this occurs because the effects of infrastructure spending are particularly weak in low income countries possibly due to the low quality of governance

government and economic growth in the less developed countries an empirical study for 1960 1980 adam smith founded modern economics with a powerful argument that free markets are the best route to prosperity and economic growth his conclusion has been studied and debated by economists ever since including nobel prize winners friedman hayek kuznets lewis myrdal and schultz whatever economists have concluded since world war ii the majority of the less developed countries seem to have opted for extensive government regulation of the private sector and for a large public sector has the large government role slowed or accelerated the growth of ldcs obviously this is an important issue this study looks at government expenditure revenue raising and regulation greater emphasis is put on expenditure because 1 the revenue raised is presumably a function of the level of expenditure and 2 there are few internationally comparable measures of regulation there are virtually no empirical studies of the general impact of government on economic growth an extensive literature search turned up only three papers gemmell analyzed the impact of nonmarket sector growth on various measures of macroeconomic performance for 27 ldcs and developed countries for 1960 and 1970 he drew no general conclusions about the relation between the size of the nonmarket sector and economic growth marsden found a negative relation between tax gdp ratios and economic growth for a cross section of 20 ldcs and developed countries for the 1970 79 period 2 i found a negative relationship between the share of government consumption expenditure in gdp and the growth of per capita gdp for a cross section of 96 ldcs and developed countries over various time periods between 1961 and 1976 3 this paper extends the approach used in my 1983 article

the option to wait in collective decisions we also explore the robustness of our model when second period valuations are correlated across individuals and when each individual s first and second period types are correlated

fiscal policy profits and investment this paper evaluates the effects of fiscal policy on investment using a panel of oecd countries we find a sizeable negative effect of public spending and in particular of its wage component on profits and on business investment this result is consistent with different theoretical models in which government employment creates wage pressure for the private sector various types of taxes also have negative effects on profits but interestingly the effects of government spending on investment are larger than those of taxes our results can explain the so called non keynesian i e expansionary effects of fiscal adjustments jel e22 e62

revisiting imf expenditure conditionality we study the long run relationship between expenditure conditionality in imf programmes and the composition of public spending we compile a granular dataset on government expenditure conditions in

assessing emissions mitigation energy policy under integrated supply and demand analysis the colombian case the effects of greenhouse gases on climate variation set policy challenges for the energy industry the largest greenhouse gas contributor globally in this context the energy industry is being subjected to reforms focussing on the environment internalisation of emission costs and the promotion of cleaner technologies to overcome the challenges posed by the emission of greenhouse gases governments have implemented mitigation policies in the power supply industries most policy instruments include either financial incentives or goals and standards and these generate impacts on electricity prices and consumer behaviour this paper models policies effects on prices and demand through an integrated demand and supply analysis for the colombian case while simulation of carbon taxes shows important reductions of fossil fuelled power capacity a feed in tariff policy promotes clean technologies though not significantly reducing use of fossil technologies when applied simultaneously policy has a greater impact on both emission reductions and the diffusion of clean technologies while only increasing electricity prices slightly even when price elasticity of demand is low such policies may have a significant effect on the penetration of renewables and emissions furthermore this structured modelling of policy helps explain how the ultimate intended goal sustainable emissions reduction might be achieved

is public expenditure productive abstract this paper considers the relationship between aggregate productivity and stock and flow government spending variables the empirical results indicate that i the nonmilitary public capital stock is dramatically more important in determining productivity than is either the flow of nonmilitary or military spending ii military capital bears little relation to productivity and iii a core infrastructure of streets highways airports mass transit sewers water systems etc has most explanatory power for productivity the paper also suggests an important role for the net public capital stock in the productivity slowdown of the last fifteen years

renewable energy technology diffusion an analysis of photovoltaic system support schemes in medellin colombia abstract colombia s electricity mix is dominated by hydropower which constitutes over 65 percent of the installed capacity the country has important potential for introducing solar photovoltaic sources into its electricity generation mix given its high average annual insolation however there is a lack of incentives and support schemes for alternative renewable energy technologies this paper analyzes the diffusion of a photovoltaic system in colombia with a focus on medellin colombia s second largest city a diffusion model is constructed based on the classic bass diffusion theory where the adoption rate is a function of awareness raising campaigning and social interaction the model incorporates both subsidy and feed in tariff policies policy implementation scenarios and the effects of policy mixes are analyzed results show that a 50 percent subsidy for investment together with a usd 0 30 kwh feed in tariff rate jointly provide the highest marginal increase in diffusion rate however given the cheapness of the country s current hydroelectric resources photovoltaic system diffusion might remain a challenge for both the government and private sectors for the foreseeable future

cost effectiveness of renewable electricity policies we analyze policies to promote renewable sources of electricity a portfolio standard rps raises electricity prices and primarily reduces gas fired generation a knee of the cost curve exists between 15 and 20 goals for 2020 in our central case and higher natural gas prices lower the cost of greater reliance on renewables a renewable energy production tax credit lowers electricity price at the expense of taxpayers which limits its effectiveness in reducing carbon emissions and it is less cost effective at increasing renewables than a portfolio standard neither policy is as cost effective as a cap and trade policy for achieving carbon emission reductions

committees with supermajority voting yield commitment with flexibility abstract a fundamental problem for government is how to combine commitment to certain policies with the flexibility required to adjust them when needed rogoff 1985 rogoff k 1985 the optimal degree of commitment to an intermediate monetary target q j econ 100 4 1169 1189 showed that a way to strike the right balance is to appoint an optimally conservative policy maker in real life however policy makers also have power over decisions where optimal plans are time consistent so delegating to a conservative person could be undesirable a flexible delegation device can be found in a large committee of randomly appointed members voting over policy after observing a shock when facing dynamic inconsistency under a single crossing property there exists a supermajority rule that implements the population median s optimally conservative policy maker with certainty another single crossing property guarantees that if simple majority voting is used to select the voting rule that will govern policy choice the supermajority preferred by the median is chosen for problems where dynamic inconsistency vanishes the committee will choose to make decisions by simple majority implementing median outcomes an application to monetary policy is developed we show that the optimal supermajority is higher when dynamic inconsistency is more severe when preferences are more homogeneous and when the economy is less volatile

fiscal policy in good times and bad in the 1980s several countries with large government debt or deficit implemented substantial and in some cases drastic deficit cuts contrary to widespread expectations in many cases private consumption boomed rather than contracted this paper shows that in times of fiscal stress shocks to government revenues and especially expenditure have very different effects on private consumption than in normal times

the optimal public expenditure financing policy does the level of economic development matter i introduction does the growth effect of public expenditures depend on the way these expenditures are financed over the years a substantial volume of theoretical and empirical research has been directed toward identifying the elements of public expenditure at its aggregated and disaggregated level that bear significant association with economic growth in contrast only a handful of studies have paid particular attention to examine the extent to which the growth effect of public expenditures depends on the method of financing such expenditures e g de gregorio 1993 miller and russek 1997 palivos and yip 1995 the consensus appears to be that the two primary modes of financing income taxation and seigniorage are distortionary opinions however are divided as to their relative merits for example according to palivos and yip 1995 income tax financing is more detrimental to growth than seigniorage financing at the same time de gregorio 1993 suggests that as long as the rate of return on indexed bonds is substantially responsive to changes in the rate of inflation seigniorage financing of public expenditure is more growth reducing pecorino 1997 on the other hand prescribes a mix of both modes of financing despite these differences the above mentioned studies share a common characteristic the optimal mode of financing public expenditure in these studies is viewed as being not contingent on the stages of economic development accordingly there remains little understanding of the process by which public expenditure financing policies shape the prospect of economic growth for developing vis a vis developed countries the primary objective of this paper is to bridge this gap in the existing literature it is a long standing belief among development experts that outcomes of public expenditures and revenue policies are conditional on the state of an economy recent evidence supports such belief for example miller and russek 1997 suggest that for developing countries a deficit financed increase in public expenditure retards economic growth and a tax financed increase leads to higher growth for developed countries a deficit financed increase in government expenditure does not affect economic growth and a tax financed increase leads to a lower growth in light of these findings and in light of the theoretical controversy about the relative merits of seigniorage versus tax finance it is meaningful to ask the following question does the relative merit of seigniorage vis a vis tax financing of public expenditure depend on the stage of economic development this paper seeks an answer to this question using both theoretical and empirical analyses the theoretical framework developed in this paper shares many of the characteristics of the models proposed by espinosa vega and yip 1999 2000 and schreft and smith 1997 in particular we consider a two period overlapping generations model where agents are subjected to stochastic relocations shocks which act like shocks to their portfolio preferences these shocks have the same consequence as liquidity preference shocks as in diamond and dybvig 1983 and create a role for financial intermediaries who take deposits and make a portfolio decision on behalf of the households in addition there is a government that relies on two alternative sources of revenue seigniorage and tax revenue to finance its exogenously given expenditure sequence the results that we derive are shaped by the portfolio decision of the financial intermediaries in particular at each point in time financial intermediaries are required to allocate their portfolios between a nonproductive liquid asset money and a productive illiquid asset the illiquid asset takes the form of financing risky investment projects which in turn generate productive capital stock for the economy the financial intermediaries optimal portfolio allocation rules depend on the relative rate of return of the two available assets

on 64 majority rule introduction d une definition de consensus social base sur deux restrictions une sur les preferences individuelles et l autre sur la distribution des preferences dans ce cas de consensus une regle de majorite a 64 presente de nombreuses proprietes interessantes par opposition aux regles de super majorite possedant des proprietes paradoxales comme les regles electorales americaines

the option to wait in collective decisions and optimal majority rules abstract we consider a model in which voters over time receive more information about their preferences concerning an irreversible social decision voters can either implement the project in the first period or they can postpone the decision to the second period we analyze the effects of different majority rules individual first period voting behavior may become less conservative under supermajority rules and it is even possible that a project is implemented in the first period under a supermajority rule that would not be implemented under simple majority rule we characterize the optimal majority rule which is a supermajority rule in contrast to individual investment problems society may be better off if the option to postpone the decision did not exist these results are qualitatively robust to natural generalizations of our model

assessing the mean reversion behaviour of fiscal policy the perspective of asian countries this article investigates fiscal policy sustainability in 10 asian countries by adopting a battery of unit root tests univariate unit root tests reveal that the fiscal stance in these countries follows a nonstationary process while the opposite conclusion was drawn for the same dataset using the commonly employed panel unit root techniques by utilizing the series specific panel unit root test recently developed by breuer et al 2002 suradf seemingly unrelated regression augmented dickey fuller that allows testing for the presence of nonstationarity within individual cross sections of the panel we found that only cross sections four out of 10 countries in the panel are stationary this means that fiscal deficits in most asian countries are in violation of their intertemporal budget constraint and that the deficits are too large

optimal taxation of capital income in general equilibrium with infinite lives this paper analyzes the optimal tax on capital income in general equilibrium models of the second best agents have infinite lives and utility functions which are extensions from the koopmans form the population is heterogeneous the important property of the models is the equality between the social and the private discount rates in the long run i find that the optimal tax rate is zero in the long run for a special case of additively separable utility functions i then determine the tax rates along the dynamic path and conditions that are sufficient for the local stability of the steady state

public debt and the limits of fiscal policy to increase economic growth abstract this study proposes a theoretical model of endogenous growth that demonstrates that the level of the public debt to gross domestic product gdp ratio should negatively impact the effect of fiscal policy on growth this effect occurs because government indebtedness extracts a portion of young people s savings to pay interest on the debts therefore the payment of debt interest requires an allocation exchange system across generations that is similar to a pay as you go pension system which results in changes in the savings rate of the economy the major conclusions of the theoretical model were verified using an econometric model that provides evidence of the validity of this conclusion our empirical analysis controls for time invariant country specific heterogeneity in growth rates we also address endogeneity issues and allow for heterogeneity across countries in the model parameters and for cross sectional dependence

understanding cost reduction of china s biomass direct combustion power generation a study based on learning curve model abstract during the critical transition towards cleaner production cp the developing and transition countries should pay extra attention to displace traditional biomass utilization with cp concepts such as biomass direct combustion power bio dcp china has witnessed impressive growth in its bio dcp sector from 2006 to 2014 the further industrial expansion and policy making of bio dcp in china and other countries in transition call for a deeper understanding of cost reduction mechanisms in this study the learning curve models i e electricity production cost as a function of multiple factors including cumulative installed capacity operation maintenance costs feed in tariff and cogeneration were developed to i empirically estimate the learning rates of china s bio dcp and ii investigate the impacts of past technological developments and policies on the cost development main findings include i the overall learning rate of china s bio dcp is 4 54 over the period 2006 2014 ii the raised feed in tariff in 2010 shows a positive effect on the learning of bio dcp iii the circulating fluidized bed projects show a higher learning rate compared to that of the grate boiler projects based on the above results suggestions regarding the bio dcp s future development are offered including discriminative subsidies biomass waste supply chains cogeneration and multi industry parks

renewable energy technologies as beacon of cleaner production a real options valuation analysis for liberia abstract the importance of energy consumption for growth and development calls for improved decision support for a sustainable energy transition given africa s dependence on fossil fuels the economic and environmental savings from research development and deployment of renewable energy technologies may be substantial although the benefits of renewable energy technologies research development funding may appear to be low assuming immediate deployment the uncertainty in the non renewable energy price and the flexibility over timing makes research development program more appealing this study develops different scenarios in order to quantify benefits provided by research development funding for renewable power generation in liberia by using real options pricing approach to estimate the value of renewable energy technologies while taking into account the uncertainty of fossil fuel prices and learning by doing in renewable energy technologies the optimal solution shows that renewable energy technologies are economically attractive especially when external costs are internalized however annual research development funding is low and should be raised significantly in order to guarantee the highest possible investment incentives with minimal expenditures the study also hypothesizes that with the likelihood of renewable energy to replace non renewable energy renewable power use in liberia can potentially reduce carbon dioxide emissions by approximately 13 9 by 2015 compared to the 2008 levels the key insight provided by the real options analysis in this study is that while renewable energy may have inherent limitations such as seasonality of supply low energy content and capacity factor issues they still hold a significant amount of value which can only be detected when externalities are internalized thus underscoring the need for external costs related policies

has latin america s post reform growth been disappointing after years of poor economic performance many latin american countries undertook ambitious programs of macroeconomic stabilization and structural reform in recent years this change in policy created high expectations for the region and some observers have questioned whether actual growth outcomes have lived up to these expectations the authors offer evidence that the response of economic growth to reforms in latin america has not been disappointing because of their significant policy changes and despite a global slowdown latin america did well to return to its historic growth rate of 2 percent per capita in 1990 93 latin america has responded to changes in policy variables as would have been predicted by the experience of other times and places those earlier experiences are summarized by a panel regression spanning many countries and multi year periods from 1960 to 1993 to get consistent estimates of the parameters linking growth and policy variables the authors use a dynamic panel methodology that both controls for unobserved time and country specific effects and accounts for the likely internal dynamism of the explanatory variables

the composition of public expenditure and economic growth abstract noting that the literature has focused on the link between the level of public expenditure and growth we derive conditions under which a change in the composition of expenditure leads to a higher steady state growth rate of the economy the conditions depend not just on the physical productivity of the different components of public expenditure but also on the initial shares using data from 43 developing countries over 20 years we show that an increase in the share of current expenditure has positive and statistically significant growth effects by contrast the relationship between the capital component of public expenditure and per capita growth is negative thus seemingly productive expenditures when used in excess could become unproductive these results imply that developing country governments have been misallocating public expenditures in favor of capital expenditures at the expense of current expenditures

dynamics and stability of constitutions coalitions and clubs a central feature of dynamic collective decision making is that the rules that govern the procedures for future decision making and the distribution of political power across players are determined by current decisions for example current constitutional change must take into account how the new constitution may pave the way for further changes in laws and regulations we develop a general framework for the analysis of this class of dynamic problems under relatively natural acyclicity assumptions we provide a complete characterization of dynamically stable states as functions of the initial state and determine conditions for their uniqueness we show how this framework can be applied in political economy coalition formation and the analysis of the dynamics of clubs the explicit characterization we provide highlights two intuitive features of dynamic collective decision making 1 a social arrangement is made stable by the instability of alternative arrangements that are preferred by sufficiently many members of the society 2 efficiency enhancing changes are often resisted because of further social changes that they will engender

renewable energy policies and contradictions in causality a case of next 11 countries abstract numerous studies on the causal relationship between economic growth energy consumption and carbon dioxide co2 emissions have shown divergence in policy recommendations which arises mainly due to the choice of methodology and the period of study this inconclusiveness in policy prescriptions might turn out to be critical when the renewable energy policies of the developing nations are considered our study analyses the causal relationship between economic growth carbon emissions fossil fuel and renewable energy consumption in next 11 countries during the period of 1990 2016 along with conducting parametric and non parametric causality tests together introducing the geweke 1982 causality test in the literature of energy economics we attempt to establish a wholesome aspect of policy design by comparing and complementing results of different causality analysis and how the causality directions should comply with the context setting our empirical evidence confirms that robust renewable energy policy can be designed by complementing the various causality test results rather than focusing on one particular causality test

voting as a lottery supermajorities have their advantage as well as their disadvantage they provide an hedge against being in the minority but they make being in the majority less likely we characterize this trade oand compute the most preferred majority threshold the relevant parameters are voting power risk aversion and pessimism people who feel powerful prefer low thresholds high thresholds are preferred by risk averters or by those who are pessimistic about being in the majority further we study constitutional agreements on the voting rule members of the constituent assembly are heterogeneous in the parameters above we show that weak and minority members succeed in pushing forward on high and protective rules

the political economy of fiscal deficits a survey this paper surveys recent literature both theoretical and empirical regarding political explanations for fiscal deficits political economy suggests conflicts of interest may lie behind the emergence of deficits 1 opportunistic politicians generate deficits to win elections even in conflict with general welfare 2 conflicts of interests between politicians partisan preferences create incentives for at least some incumbents to run deficits and 3 conflicts of interest between different social groups or regions generate tensions in the allocation of government resources leading to overspending this paper reviews these different strands of the literature it also covers contributions that highlight the crucial role of budget institutions in determining the extent to which the political motivations to generate deficits are indeed translated into poor fiscal outcomes promising avenues for future research are highlighted

international technology oriented agreements to address climate change much discussion has surrounded possible alternatives for international agreements on climate change particularly post 2012 among these alternatives technology oriented agreements toas are perhaps the least well defined we explore what toas may consist of why they might be sensible which toas already exist in international energy and environmental governance and whether they could make a valuable contribution to addressing climate change we find that toas aimed at knowledge sharing and coordination research development or demonstration could increase the overall efficiency and effectiveness of international climate cooperation but are likely to have limited environmental effectiveness on their own technology transfer agreements are likely to have similar properties unless the level of resources expended is large in which case they could be environmentally significant technology specific mandates or incentives could be environmentally effective within the applicable sector but are more likely to make a cost effective contribution when viewed as a complement to rather than a substitute for flexible emissions based policies these results indicate that toas could potentially provide a valuable contribution to the global response to climate change the success of specific toas will depend on their design implementation and the role they are expected to play relative to other components of the policy portfolio

endogenous technological change in climate change modelling this article investigates the impact on optimal co2 abatement and carbon tax levels of introducing endogenous technological change in a macroeconomic model of climate change we analyse technological change as a function of cumulative capacity as incorporated recently in energy systems models our calculations confirm that including endogenous innovation implies earlier emission reduction to meet atmospheric carbon concentration constraints however the effect is stronger than suggested in the literature moreover the development of non fossil energy technologies constitutes the most important opportunity for emission reductions optimal carbon tax levels reducing fossil energy use are lower than usually advocated