the nonlinear time series properties of unemployment rates some further evidence the time series properties of unemployment rates for germany japan the uk and the us are re examined evidence of nonlinear structure in the residuals of the most parsimonious linear arma models is reported for all countries except japan modelling this nonlinearity using setar models suggests strong asymmetry in unemployment dynamics and the presence of a possible limit cycle for the uk however residual diagnostics for these models indicate remaining structure alternative tar models conditioned on past growth rates of industrial production yield substantial reductions in residual variance over both linear and setar counterparts iid residuals in all cases other than the us and threshold values at or very near zero clearly identifying the asymmetric behaviour of unemployment during expansionary and contractionary phases of the business cycle

on measuring uncertainty and its impact on investment cross country evidence from the euro area abstract investment fell sharply in the euro area after the financial crisis and has not yet returned to pre crisis levels in many core economies focusing on the four largest euro area countries this paper investigates the role of uncertainty for investment dynamics by doing so we compare five prominent uncertainty proxies put forward in the recent literature the implied stock market volatility a survey derived measure of expectations dispersion a newspaper based indicator of policy uncertainty and two indicators taking up the concept of econometric unpredictability although all uncertainty measures show countercyclical behavior we find uncertainty as measured by the conditional volatility of the unforecastable components of a broad set of time series to exhibit noticeable robust effects across different model specifications and countries based on this type of uncertainty proxy we document pronounced negative investment responses to uncertainty shocks we further show that these effects can explain a relevant portion of the decrease in investment in the course of the great recession

balancing the carbon budget for oil the distributive effects of alternative policies keeping temperature change below 2 c will require leaving large reserves of fossil fuels unextracted we assess alternative policies to achieve this goal in a world divided into two regions one regulated with emissions pricing and one unregulated supplied by multiple resource pools with different extraction costs and a carbon free backstop whose costs decline over time global emissions can be reduced by combinations of three policies 1 increasing the size of the regulated coalition 2 raising the tax or tightening the cap within the regulated coalition and 3 accelerating cost reductions of the clean technology we ask how combinations achieving the same cumulative co2 emissions the carbon budget affect the discounted surplus of regulated and unregulated consumers and the wealth of the extractors we first evaluate these policy alternatives in a two pool theoretical model with high and low cost extractors and once tradeoffs are illuminated in a calibrated oil market model a global co2 tax is both cost effective and the best policy for regulated consumers extractors and unregulated consumers however prefer a technology only policy when the regulating coalition is subglobal support for the clean substitute is desired and often required but the preferred policy portfolio of the coalition involves a tighter cap and less technology policy than is globally optimal leaving room for bargaining over who pays for clean innovation

macroeconomic uncertainty through the lens of professional forecasters abstractwe analyze the evolution of macroeconomic uncertainty in the united states based on the forecast errors of consensus survey forecasts of various economic indicators comprehensive information contained in the survey forecasts enables us to capture a real time measure of uncertainty surrounding subjective forecasts in a simple framework we jointly model and estimate macroeconomic common and indicator specific uncertainties of four indicators using a factor stochastic volatility model our macroeconomic uncertainty estimates have three major spikes has three major spikes aligned with the 1973 1975 1980 and 2007 2009 recessions while other recessions were characterized by increases in indicator specific uncertainties we also show that the selection of data vintages affects the estimates and relative size of jumps in estimated uncertainty series finally our macroeconomic uncertainty has a persistent negative impact on real economic activity rather than producing wait and see dynamics

threshold effects in the patent growth relationship a pstr approach for 60 developed and developing countries this study analyzes whether there is a threshold effect in the innovation growth relationship using data from the period 2008 2017 we perform an analysis using 60 countries in the whole sample an

unilateral climate policy and the green paradox extraction costs matter i analyze the effect of unilateral climate policies in a two country model where fossil fuel extraction costs depend on both current extraction and remaining stock and where a constant marginal cost clean substitute is available an intensification of climate policy in the country with an initially stricter policy does not increase early fossil fuel extraction i e there is no weak green paradox or the present value of pollution costs i e there is no strong green paradox if energy demand in that country is initially met with a mix of fossil fuel and a substitute whether a stricter climate policy in the country with an initially laxer policy causes a weak green paradox depends on the price elasticity of energy demand and the strength of the flow and stock dependence of extraction costs if the reduction of total extraction is sufficiently strong it overcompensates for a weak green paradox with respect to pollution costs thus a weak green paradox does not necessarily imply a strong green paradox due to stock dependence politique climatique unilaterale et paradoxe vert l incidence des couts d extraction l article analyse l effet des politiques climatiques unilaterales dans un modele a deux pays ou les couts d extraction de combustibles fossiles dependent a la fois de l extraction actuelle et du stock residuel et ou la disponibilite d un substitut energetique propre et constant a cout marginal demeure une intensification des politiques climatiques dans le pays de pair avec une politique initialement plus stricte n augmente ni l extraction precoce des combustibles fossiles c est a dire qu il n y a pas de paradoxe vert faible ni la valeur actuelles des couts de pollution c est a dire qu il n y a pas de paradoxe vert accru x00ab pour autant que la demande en energie dans ce pays est initialement satisfaite par une combinaison d un combustible fossile et d un substitut qu une politique climatique plus stricte dans ce pays dote d une politique initialement plus laxiste entrane un paradoxe vert moins prononce depend de l elasticite par rapport au prix de la demande d energie de l importance du flux et de la dependance en matiere de stock relativement aux couts d extraction si une reduction de l extraction totale est suffisamment forte elle surcompensera un paradoxe vert limite relativement aux couts de pollution ainsi un faible paradoxe vert n engendre pas necessairement un fort paradoxe vert en raison de la dependance au stock

dynamics of pollution control when damage is sensitive to the rate of pollution accumulation economic models which take into account the long term effects of pollution in the environment specify pollution damage as a function of the accumulated stock several economists have proposed another formulation where damage is a function of the time derivative of the pollution stock this paper considers the intertemporal efficiency implications of this formulation the first specification is qualitative and the objective functional includes both the rate of change and the level of the pollution stock the second specification is a stylized climate change model with a linear damage function where damage depends only on the rate of increase in global temperature the analysis reveals that the efficiency properties of optimal pollution control are very sensitive to this change in the damage function intertemporal efficiency may require higher emissions compared with the level which is optimal from the myopic point of view an increase in the rate of discount typically reduces the optimal emission level

persistence of economic uncertainty a comprehensive analysis one of the most heavily researched and cited issue in applied economics is the relationship of uncertainty indices with the financial and macroeconomic variables while the statistical features of

incomplete international cooperation to reduce co2 emissions alternative policies abstract as a first step toward a global treaty to control co2 emissions individual countries contemplate unilateral reductions in their fuel use such actions if significant would reduce world market fuel prices thereby stimulating fuel use elsewhere and causing problems for exporting countries possibly jeopardizing this policy initiative among the policy alternatives for mitigating the price effects of reduced demand reduced fuel consumption combined with buying or leasing fuel deposits to achieve a reduced supply is discussed in particular this policy which at first seems prohibitively costly is shown to dominate the original policy approach under a fairly wide set of circumstances

measuring global and country specific uncertainty abstract motivated by the literature on the capital asset pricing model we decompose the uncertainty of a typical forecaster into common and idiosyncratic uncertainty using individual survey data from the consensus forecasts over the period of 1989 2014 we develop monthly measures of macroeconomic uncertainty covering 45 countries and construct a measure of global uncertainty as the weighted average of country specific uncertainties our measure captures perceived uncertainty of market participants and derives from two components that are shown to exhibit strikingly different behavior common uncertainty shocks produce the large and persistent negative response in real economic activity whereas the contributions of idiosyncratic uncertainty shocks are negligible

uncertainty and deviations from uncovered interest rate parity abstract it is well known that uncovered interest rate parity does not hold empirically especially at short horizons but is it really so we conjecture that uncovered interest rate parity is more likely to hold in low uncertainty environments relative to high uncertainty ones since arbitrage opportunity gains become more uncertain in a highly unpredictable environment thus blurring the relationship between exchange rates and interest rate differentials in this paper we first provide a new exchange rate uncertainty index that measures how unpredictable exchange rates are relative to their historical past then we use the new measure of uncertainty to provide empirical evidence that uncovered interest rate parity does hold in five industrialized countries vis a vis the us dollar at times when uncertainty is not exceptionally high and breaks down during periods of high uncertainty

strategic resource dependence we consider a situation where an exhaustible resource seller faces demand from a buyer who has a substitute but there is a time to build delay for the substitute we find that in this simple framework the basic implications of the hotelling model 1931 are reversed over time the stock declines but supplies increase up to the point where the buyer decides to switch under such a threat of demand change the supply does not reflect the current resource scarcity but it compensates the buyer for delaying the transition to the substitute the analysis suggests a perspective on costs of oil dependence

the international effects of global financial uncertainty shocks abstract in this paper we study the impact of sudden rises in global financial uncertainty on small open economies to this end we extract a global factor from the realised volatilities of about 1000 risky asset returns from around the world we then analyse how shocks to this factor affect economic activity in 44 advanced and emerging small open economies by estimating local projections in a panel regression framework we find that shocks increasing global financial uncertainty have adverse consequences on output trade and unemployment while their impact on nominal variables is more heterogeneous across countries furthermore the effects are more severe in countries with a higher degree of trade or financial openness higher levels of vulnerabilities weaker institutions or during economic downturns

ordering the extraction of polluting nonrenewable resources energy markets are often characterized by the use of multiple nonrenewable resources such as coal and natural gas with different pollution characteristics the same resource may have different qualities as when high and low sulfur coal is used to generate electricity multiple resources are used in providing transportation services such as cars running on gasoline or plug in hybrids that may be fueled by electricity produced from coal when these nonrenewable resources contribute differentially to pollution what is the opti mal sequence of extraction over time harold hotelling 1931 developed the classical theory of extraction of a nonrenewable resource orris c herfindahl 1967 extended the hotelling model by considering many resources with different unit costs of extraction and proposed the least cost first principle extraction must be ordered by cost with the cheapest resource used first others have examined whether herfindahl s model remains valid in a variety of situations in a general equilibrium setting see murray kemp and ngo v long 1980 tracy r lewis 1982 in the presence of setup costs g rard gaudet moreaux and stephen w salant 2001 under het erogeneous demands chakravorty and darrell l krulce 1994 and when the extraction rate is constrained jean pierre amigues et al 1998 stephen p holland 2003 in these studies following hotelling and herfindahl resources were differentiated by cost alone in this paper we abstract from cost considerations and focus on how the sequence of extraction may be affected when resources are differentiated only by their pollution character istics we consider two resources one more polluting than the other without loss of generality consider coal to be the dirty resource and natural gas the clean one both may be used to generate electricity environmental regulation is imposed through a cap on the stock of pollution this may be a stylized approximation of an international agreement such as the kyoto protocol which aims to stabilize the concentration of greenhouse gases in the atmosphere 1 with heterogeneity in pollution the results are nonintuitive and do not depend on the emis sion rates of the resources when the economy is already at its allowable stock of pollution the clean natural gas is used first and use of the dirty coal is postponed to the future this is what one would expect armed with insights from the herfindahl model however when the economy starts from below the ceiling and accumulates pollution coal may be used first and use of the clean natural gas is postponed the optimal strategy is to benefit from natural dilution by build ing the stock of pollution as quickly as possible this is done by burning coal rather than natural

growth renewables and the optimal carbon tax optimal climate policy is investigated in a ramsey growth model of the global economy with exhaustible oil reserves an infinitely elastic supply of renewables stock dependent oil extraction costs and convex climate damages four regimes can occur depending on the initial social cost of oil being larger or smaller than that of renewables and depending on the initial oil stock being large or small we also offer some policy simulations for the first and second regime which illustrate that with a lower discount rate more oil is left in situ and renewables are phased in more quickly we identify the conditions under which the optimal carbon tax rises or decreases subsidizing renewables without a carbon tax induces more oil to be left in situ and a quicker phasing in of renewables but oil is depleted more rapidly initially the net effect on global warming is ambiguous abstract from author

the supply side of co2 with country heterogeneity several recent articles have analyzed climate policy paying explicit attention to the fact that carbon resources are non renewable in most of this body of literature the economy is treated as a single unit and in the context of climate policy it seems reasonable to interpret this as the whole world however carbon taxes and other climate policies differ substantially across countries with such heterogeneity the effects on the emission paths of changes in taxes costs and subsidies might be very different from what is found for a hypothetical world of identical countries

the grey paradox how fossil fuel owners can benefit from carbon taxation abstract this paper considers the distributional impact of optimal carbon taxation on fossil fuel owners a carbon emitting exhaustible resource competes with a dirtier abundant resource and a clean backstop a time dependent carbon tax is set to optimally use these resources under a cap constraint over co 2 atmospheric concentration as the cap is tightened the dirtier resource becomes less competitive compared to the exhaustible resource the competition effect but the timing and duration of extraction of the exhaustible resource is modified the timing effect we provide analytical expressions of these effects and determine conditions over size of reserves pollution contents extraction costs and demand elasticity such that the exhaustible resource owners profits increase as the ceiling is tightened calibrations for the transport and power sectors suggest that the profits of conventional oil and natural gas owners increase compared to a baseline without regulation for plausible carbon ceiling values

abatement r d and growth with a pollution ceiling abstract the consequences of the 2 c climate target and the implicitly imposed ceiling on co2 have been analyzed in several studies we use an endogenous growth model with a ceiling and an abatement option to study the effect of the ceiling on the allocation of limited funds for r d abatement and capital accumulation it is found that the advantagenousness of abatement rises with the cost advantage of fossil fuel versus backstop if the cost advantage is sufficiently large at some point in time it outweighs the costs of abatement and the gains of r d and capital accumulation the reallocation of production towards abatement may cause an increase or decrease in long run consumption in the latter case abatement allows an intertemporal consumption trade off which may even justify the disregard of everlasting growth in case of stock dependent fossil fuel costs an abatement induced speed up of technology development may cause an increase in fossil fuel stock left in situ

double limit pricing abstract we study oil extraction by a monopolist who faces demand from a climate aware and a climate ignorant region a renewable perfect substitute for oil is available at constant unit cost the climate aware region uses a carbon tax and a renewables subsidy as policy instruments due to heterogeneity in climate policies between regions the oil price path possibly contains two limit pricing phases we specify conditions under which a tightening of climate policies results in lower initial carbon emissions a renewables subsidy and a carbon tax effectively force the monopolist to sell more oil to the climate ignorant region during the stage when demand from the climate aware region has already vanished we calibrate the model and numerically investigate climate damage and welfare effects of the policies of the climate aware region we find that both the carbon tax and a renewables subsidy lower climate damage even though cumulative emissions are fixed

perceived uncertainty shocks excess optimism pessimism and learning in the business cycle abstract what are the effects of beliefs sentiment and uncertainty over the business cycle to answer this question we develop a behavioral new keynesian macroeconomic model in which we relax the assumption of rational expectations agents are instead boundedly rational they have a finite planning horizon and they learn about the economy over time moreover we allow agents to have a potentially asymmetric loss function in forecasting which creates a direct channel for expected variances to affect the economy in forming expectations agents may be subject to shifts in optimism and pessimism sentiment and their beliefs may be influenced by their perceptions about future uncertainty we estimate the behavioral model using bayesian methods and exploit a large number of subjective expectation series both point and density forecasts at different horizons from the survey of professional forecasters we find that sentiment shocks are the key source of business cycle fluctuations shifts in perceived uncertainty can also affect real activity and inflation through a confidence channel as they play an important role in belief formation overall the results shed light on the importance of behavioral forces over the business cycles and on the contribution and interaction of first moment sentiment shocks versus second moment perceived uncertainty shocks

opec unconventional oil and climate change on the importance of the order of extraction we show that opec s market power contributes to climate change by enabling producers of relatively expensive and dirty oil to start producing before opec reserves are depleted we examine the importance of this extraction sequence effect by calibrating and simulating a cartel fringe model of the global oil market while welfare net of climate damage under the cartel fringe equilibrium can be significantly lower than under a first best outcome almost the entire welfare loss is due to the sequence effect of opec s market power in our benchmark calibration the cost of the sequence effect amounts to 15 trillion us which corresponds to 97 percent of the welfare loss moreover we find that an increase in non opec oil reserves decreases global welfare in a counterfactual world without non opec oil global welfare would be 13 trillion us higher 10 trillion us of which is due to lower climate damages

testing nonlinearities in economic growth in the oecd countries an evidence from setar and star models this study estimates the self exciting threshold autoregressive setar and smooth transition autoregressive star models and examines the nonlinear and regime switching dynamics of economic growth for a set of 10 oecd countries the null of linearity in setar model is tested using the recursive polynomial f test of tsay and the bootstrap based supremum average and exponential average lagrange multiplier lm tests of hansen the f test of tsay rejects the null of linearity for all the countries except spain and switzerland the setar model of hansen reinforces the evidence and suggests the rejection of linear model the star model rejects the null of linearity against star nonlinearity for all the countries except denmark and switzerland the sequential f tests for the conditional nulls suggest the lstar nonlinearity for australia belgium france sweden and uk and the estar nonlinearity for canada spain and the usa

characterizing nonlinearities in business cycles using smooth transition autoregressive models during the past few years investigators have found evidence indicating that various time series representing business cycles such as production and unemployment may be nonlinear in this paper it is assumed that if the time series is nonlinear then it can be adequately described by a smooth transition autoregressive star model the paper describes the application of these models to quarterly logarithmic production indices for 13 countries and europe tests reject linearity for most of these series and estimated star models indicate that the nonlinearity is needed mainly to describe the responses of production to large negative shocks such as oil price shocks

brown backstops versus the green paradox abstract anticipated climate policies are ineffective when fossil fuel owners respond by shifting supply intertemporally the green paradox this mechanism relies crucially on the exhaustibility of fossil fuels we analyze the effect of anticipated climate policies on emissions in a simple model with two fossil fuels one scarce and dirty e g oil the other abundant and dirtier e g coal we derive conditions for a green orthodox anticipated climate policies may reduce current emissions the model can also be used to analyze spatial carbon leakage calibrations suggest that intertemporal carbon leakage from 0 to 8 is a relatively minor concern

modeling nonrenewable resources use with multiple demands and multiple sources the theoretical literature following hotelling j polit econ 39 137 175 1931 assumed that all nonrenewable resource needs are satisfied by one type of resource e g oil extractible at different per unit costs this formulation implicitly assumes that all users are the same distance from each resource pool that all users can switch costlessly from one type of resource to another e g liquid fossil fuels to coal or vice versa and that all users are subject to the same regulations these assumptions imply as herfindahl extractive resources and taxation university of wisconsin press madison pp 63 90 1967 showed that in competitive equilibrium all users will exhaust a lower cost resource completely before beginning to extract a higher cost resource simultaneous extraction of different grades of oil or of oil and coal should never occur in trying to apply the single demand curve model during the last twenty years several teams of authors have independently found a need to generalize it to account for users differing in their 1 location 2 resource needs or 3 regulatory environment each research team found that herfindahl s strong unrealistic conclusion disappears in the generalized model in its place a weaker herfindahl result emerges since each research team focussed on a different application however it has not always been clear that everyone has been describing the same generalized model the goal in this paper is to integrate the findings of these teams and to present an easily accessible generalization of the nonrenewable resource model to multiple demand curves

does economic policy uncertainty in the u s influence stock markets in china and india time frequency evidence this paper uses continuous and discrete wavelet tools to evaluate the dynamic correlation and causality between the u s economic policy uncertainty epu and stock markets in china and india from

google it up a google trends based uncertainty index for the united states and australia we develop uncertainty indices for the united states and australia based on freely accessible real time google trends data our google trends uncertainty gtu indices are found to be positively correlated to a variety of alternative proxies for uncertainty available for these two countries var investigations document an economically and statistically significant contribution to unemployment dynamics by gtu shocks in the united states in contrast the contribution of gtu shocks to unemployment dynamics in australia is found to be much milder and substantially lower than that of monetary policy shocks

carbon leakage the green paradox and perfect future markets policies of lowering carbon demand may aggravate instead of alleviate climate change green paradox in a two period three country general equilibrium model with finite endowment of fossil fuel one country enforces an emissions cap in the first or second periods when that cap is tightened the extent of carbon leakage depends on the interaction of various parameters and elasticities conditions for the green paradox are specified all determinants of carbon leakage resulting from tightening the first period cap work in the opposite direction when the second period cap is tightened tightening the second period cap does not necessarily lead to the green paradox

liquidity creation through efficient m as a viable solution for vulnerable banking systems evidence from a stress test under a panel var methodology according to the cost efficiency liquidity creation hypothesis celch introduced in this paper a rise in a bank s cost efficiency level increases its liquidity creation by employing a novel stress test scenario under a panel var methodology the celch and the direction of causality between liquidity creation and cost efficiency are tested moreover using new measures of liquidity creation berger and bouwman 2009 the question of whether potential bank mergers and acquisitions m as can enhance liquidity creation and generate additional credit channels in the economy is addressed the robustness of potential consolidation scenarios are evaluated and compared through the use of new half life measures chortareas and kapetanios 2013 in line with celch the positive impact of cost efficiency on liquidity creation is shown the empirical evidence further suggests that potential consolidation activity can enhance the flow of credit in the economy bank shocks seem to have the most persistent effect on both liquidity creation and cost efficiency finally doubts are cast on the strategies followed by policy authorities regarding the recent wave of m as in the banking sector

more than a feeling confidence uncertainty and macroeconomic fluctuations economists observers and policy makers often emphasize the role of sentiment as a potential driver of the business cycle in this paper we provide three contributions to this debate first we give an overview of the recent literature on the nexus between sentiment considering both confidence and uncertainty and economic activity second we review existing empirical measures of sentiment in particular consumer confidence stock market volatility smv and economic policy uncertainty epu on monthly data for 27 countries 1985 2016 third we identify some new stylized facts based on international evidence while different measures are surprisingly lowly correlated on average in each country they are typically highly positively correlated across countries suggesting the existence of a global factor or sizeable international spillovers of sentiment consumer confidence has the closest co movement with economic and financial variables and most of the correlations are contemporaneous or forward looking consistent with the view that economic sentiment is indeed a driver of activity

threshold nonlinearities in output some international evidence the empirical adequacy of linear ar and nonlinear setar models of trend stationary and difference stationary representations of output for canada germany japan the uk and the us are appraised test results suggest the presence of linear model residual structure of some form for all series and nonlinearities of specifically threshold form in trend stationary data for canada germany japan and the us and difference stationary data for germany japan and the us with the exception of canada estimated threshold nonlinear models imply asymmetric dynamics are able to account for all nonlinear structure in the data on the basis of bds statistics and provide sizeable reductions in residual variance in several cases most notably for germany

macroeconomic uncertainty indices based on nowcast and forecast error distributions abstract we propose new indices to measure macroeconomic uncertainty the indices measure how unexpected a realization of a representative macroeconomic variable is relative to the unconditional fo

uncertainty and the macroeconomy evidence from an uncertainty composite indicator this article proposes a uncertainty composite indicator uci based on three distinct sources of uncertainty namely financial political and macroeconomic for the us economy on the period 1985 2015 for that we use a dynamic factor model summarizing efficiently six individual uncertainty proxies namely two macroeconomic and financial uncertainty factors based on the unpredictability a measure of micro economic uncertainty the implied volatility index the corporate bond spreads and an index of economic policy uncertainty we then compare the effects of uncertainty on economic activity when the uci is used instead of individual uncertainty proxies in structural var models the interest of our uci is to synthesize theses effects within one measure of uncertainty overall the uci was able to account for the most important dynamics of uncertainty which play an important role in business cycles

european central bank footprints on inflation forecast uncertainty the finding of the paper shows the relative effectiveness of the one size fits all policy of the european central bank the paper provides strong evidence in favor of this by testing whether the monetary policy effects footprints found in inflation uncertainty converge to a common level these footprints are measured as the fraction of the estimated policy induced reduction in this uncertainty the testing was conducted by applying a bootstrap type test in a regression of the rate of growth of these fractions on their initial values computed for 16 euro area countries jel c33 e52 e58

what are the macroeconomic effects of high frequency uncertainty shocks this paper evaluates the effects of high frequency uncertainty shocks on a set of low frequency macroeconomic variables that are representative of the u s economy rather than estimating models at the same common low frequency we use recently developed econometric models which allows us to deal with data of different sampling frequencies

a hotelling model with a ceiling on the stock of pollution abstract environmental agreements such as the kyoto protocol aim to stabilize the amount of carbon in the atmosphere which is mainly caused by the burning of nonrenewable resources such as coal we characterize the solution to the textbook hotelling model when there is a ceiling on the stock of emissions we consider both increasing and decreasing demand for energy we show that when the ceiling is binding both the low cost nonrenewable resource and the high cost renewable resource may be used jointly a key implication is that if energy demand were to decline in the long run we may supplement energy supply through clean renewables to meet the environmental standard but then revert back to using only dirty fossil fuels in the future when the ceiling has become non binding that is the much heralded societal transition to clean energy resources may be short lived

strategic central bank communication discourse analysis of the bank of japan s monthly report abstract we conduct a discourse analysis of the bank of japan s monthly report and examine its characteristics in relation to business cycles we find that ambiguous expressions tend to appear more frequently with negative expressions and this tendency is more pronounced in recessions this suggests that the central bank communicates strategically by obfuscating the reports when their private information is unfavorable

unilateral climate policies incentives and effects we analyze the effect of climate policies using a two region partial equilibrium model of resource extraction the regions are heterogeneous in various aspects such as in their climate policies and resource extraction costs we obtain analytical and numerical conditions for a green paradox to occur as a consequence of a unilateral increase in carbon taxation and backstop subsidy in order to assess the welfare and climate consequences of unilateral policy changes we calibrate the model to real world parameter values we find that forming a climate coalition and introducing carbon taxation even in the absence of real climate concerns is the best course of action for the largest fossil fuel using regions

endogenous growth with a ceiling on the stock of pollution the effects of an agreement such as the kyoto protocol which implicitly imposes a ceiling on the stock of pollution have recently been studied in hotelling models we add pollution and a ceiling to the endogenous growth model of tsur and zemel j environ econ manag 49 3 484 499 2005 to study the effects of the ceiling and pollution on capital and research investments in the short run the ceiling adds an additional scarcity to the one induced by the limited fossil fuel stock ceteris paribus the extraction rate of cheap fossil fuel is reduced and backstop utilization boosted this increases energy costs energy cost effect and makes r d more beneficial compared with capital accumulation research effect r d investments may increase depending on capital endowment and the strength of the two effects the sum of r d and capital investments is affected as both effects change disposable production in the long run i e after the exhaustion of limited resources the shape of the evolution path can be only affected by the ceiling if the capital endowment is sufficiently large

simultaneous supplies of dirty energy and capacity constrained clean energy is there a green paradox the effects of two popular second best clean energy policies are analysed using an extended hotelling type resource extraction framework this model features first heterogenous energy sources and second a capacity constrained backstop technology this setup allows for capturing the following two empirical observations first different types of energy sources are used simultaneously despite different production cost second experiences from various european countries show that a further expansion of the use of climate friendly technologies faces substantial technological as well as political constraints we use this framework to analyse if under two policy scenarios a so called green paradox occurs a subsidy for the clean energy as well as an expansion of the capacity of the clean energy are considered the analysis shows that under plausible parameter values both policy measures lead to a weak green paradox however a strong green paradox is only found for the capacity expansion scenario in addition the subsidy is found to be welfare enhancing while the capacity increase is welfare enhancing only if the cost of adding the capacity is sufficiently small we also show the effects of the policies crucially depend on the initial capacity and that under certain scenarios even an extreme green paradox is found

coase and hotelling a meeting of the minds in this paper we tie together the two literatures of durable goods monopoly and exhaustible resource pricing we show that the intertemporal no arbitrage condition that arises if the durable good monopolist seller can commit to a price path mirrors the intertemporal no arbitrage condition if the monopsonist buyer of an exhaustible resource can commit to a price path the intuition is that the durable good monopolist initially announces high future prices to get high valuation buyers to buy early and subsequently lowers the price to attract additional buyers on the other hand the monopsonist buyer of the exhaustible resource initially announces low future prices to encourage sellers to supply their units early and subsequently as the stock of the resource declines raises the price to call forth additional supply as the period of commitment shrinks to zero the durable good s price drops to its marginal cost and the exhaustible resource s price jumps to its choke level all in a twinkling of the eye a

foreign direct investment domestic investment and economic growth in china a time series analysis this paper investigates the causal link between foreign direct investment fdi domestic investment and economic growth in china for the period 1988 2003 using a multivariate var system with error correction model ecm and the innovation accounting variance decomposition and impulse response function analysis techniques the results show that while there is a bi directional causality between domestic investment and economic growth there is only a single directional causality from fdi to domestic investment and to economic growth rather than crowding out domestic investment fdi is found to be complementary with domestic investment thus fdi has not only assisted in overcoming shortage of capital it has also stimulated economic growth through complementing domestic investment in china

impact of global uncertainty on the global economy and large developed and developing economies global uncertainty shocks are associated with a sharp decline in global inflation growth and interest rate global uncertainty shocks have more protracted statistically significant and substantia

taxing international emissions trading we investigate the efficiency and effectiveness consequences of emissions trading taxation a theoretical partial equilibrium model is developed showing that permits taxation distorts the equilibrium price and abatement efforts potentially counterintuitive conclusions concerning the tax revenue are also derived a cge model complements theoretical results suggesting that the change in the equilibrium permits price brought about by taxation can be significant finally we conclude that policy design based on cost effectiveness might lead to wrong conclusions the socially desirable design of emissions trading taxation requires homogenous tax rates applied to net sellers and no rebate rates allowed for net buyers