value of information in competitive economies with incomplete markets we study the value of public information in competitive economies with incomplete markets we show that generically the welfare effect of a change in the information available prior to trading can be in any direction there exist changes in information that make all agents better off and changes for which all agents are worse off in contrast for any change in information a pareto improvement is feasible that is attainable by a planner facing the same informational and asset market constraints as agents in this sense the response of competitive markets to changes in information is typically not socially optimal

energy consumption and economic growth nexus in tanzania an ardl bounds testing approach abstract in this paper we examine the intertemporal causal relationship between energy consumption and economic growth in tanzania during the period of 1971 2006 unlike the majority of the previous studies we employ the newly developed autoregressive distributed lag ardl bounds testing approach by pesaran et al 2001 bounds testing approaches to the analysis of level relationships journal of applied econometrics 16 289 326 to examine this linkage we also use two proxies of energy consumption namely total energy consumption per capita and electricity consumption per capita the results of the bounds test show that there is a stable long run relationship between each of the proxies of energy consumption and economic growth the results of the causality test on the other hand show that there is a unidirectional causal flow from total energy consumption to economic growth and a prima facie causal flow from electricity consumption to economic growth overall the study finds that energy consumption spurs economic growth in tanzania

energy consumption and economic growth in south africa reexamined a nonparametric testing apporach this paper is an effort to investigate claims concerning granger causality relationship from energy consumption to economic growth in south africa we adopt a nonparametric bootstrap method to reassess evidence supporting granger causality and unravel findings of long run unidirectional causality running from energy consumption to economic growth this implies that energy conservation policies will negatively impact economic growth in south africa in addition the results of this study have implications on co2 emissions in south africa given that coal accounts for about 72 of energy this suggests that energy use would have a long run effect of raising the country s co2 emission levels hence there might be a need to develop a more balanced energy structure which will include higher share of renewable energy a further monte carlo experiment performed reveals that asymptotic granger causality test suffers size distortion problem for south african data these findings provide support for use of a bootstrap methodology and also imply that the results presented in this study are likely to be more reliable

estimates of inter fuel substitution possibilities in chinese chemical industry abstract the chemical sector is a key driver of china s remarkable growth record and accounts for about 10 of the country s gdp this has made the industry energy intensive and consequently a major contributor to greenhouse gas emissions ghg and other pollutants this study has attempted to investigate the potential for inter fuel substitution between coal oil natural gas and electricity in chinese chemical sector by employing a translog production and cost function ridge regression procedure was adopted to estimate the parameters of the function estimation results show that all energy inputs are substitutes in addition the study produces evidence that the significant role of coal in the chinese chemical fuel mix converges over time albeit slowly these results suggest that price based policies coupled with capital subsidy programs can be adopted to redirect technology use towards cleaner energy sources like electricity and natural gas hence retaining the ability to fuel the chemical sector while also mitigating ghg emissions notwithstanding one must understand that the extent to which substituting electricity for coal will be effective depends on the extent to which coal or oil is used in generating electricity the findings of this study provide general insights and underscore the importance of chinese government policies that focus on installed capacity of renewable electricity energy intensity targets as well as merger of enterprises

causal independence between energy consumption and economic growth in liberia evidence from a non parametric bootstrapped causality test abstract this contribution investigates causal interdependence between energy consumption and economic growth in liberia and proposes application of a bootstrap methodology to better reflect causality employment is incorporated as additional variable the study demonstrates evidence of distinct bidirectional granger causality between energy consumption and economic growth additionally the results show that employment in liberia granger causes economic growth and apply irrespective of the short run or long run evidence from a monte carlo experiment reveals that the asymptotic granger causality test suffers size distortion problem for liberian data suggesting that the bootstrap technique employed in this study is more appropriate given the empirical results implications are that energy expansion policies like energy subsidy or low energy tariff for instance would be necessary to cope with demand exerted as a result of economic growth in liberia furthermore liberia might have the performance of its employment generation on the economy partly determined by adequate energy therefore it seems fully justified that a quick shift towards energy production based on clean energy sources may significantly slow down economic growth in liberia hence the government s target to implement a long term strategy to make liberia a carbon neutral country and eventually less carbon dependent by 2050 is understandable

energy consumption prices and economic growth in three ssa countries a comparative study in this paper we examine the causal relationship between energy consumption and economic growth in three sub saharan african countries namely south africa kenya and congo drc we incorporate prices as an intermittent variable in a bivariate setting between energy consumption and economic growth thereby creating a simple trivariate framework using the ardl bounds testing procedure we find that the causality between energy consumption and economic growth varies significantly across the countries under study the results show that for south africa and kenya there is a unidirectional causal flow from energy consumption to economic growth however for congo drc it is economic growth that drives energy consumption these findings have important policy implications insofar as energy conservation policies are concerned in the case of congo drc for example the implementation of energy conservation policies may not significantly affect economic growth because the country s economy is not entirely energy dependent however for south africa and kenya there is a need for more energy supply augmentations in order to cope with the long run energy demand in the short run however the two countries should explore more efficient and cost effective sources of energy in order to address the energy dependency problem

rentierism energy and economic growth the case of algeria and egypt 1965 2010 abstract the algerian economy is an example of a high level of rentierism while the egyptian economy shows a low moderate level of rentierism the ardl bounds test approach was used upon annual time series data from 1965 to 2010 the results suggest cointegration for both countries bi causality between energy consumption and growth in the long run was found for algeria there is a reversed negative energy growth nexus adding a new relationship to the traditional four causal hypotheses on the energy growth nexus for egypt we found positive elasticity both of oil price and energy which is in line with the mainstream

electricity consumption and economic growth a time series experience for 17 african countries abstract while the availability of electricity by itself is not a panacea for the economic and social problems facing africa the supply of electricity is nevertheless believed to be a necessary requirement for africa s economic and social development this paper tests the long run and causal relationship between electricity consumption per capita and real gross domestic product gdp per capita for 17 african countries for the period 1971 2001 using a newly developed cointegration test proposed by pesaran et al 2001 and using a modified version of the granger causality test due to toda and yamamoto 1995 the advantage of using these two approaches is that they both avoid the pre testing bias associated with conventional unit root and cointegration tests the empirical evidence shows that there was a long run relationship between electricity consumption per capita and real gdp per capita for only 9 countries and granger causality for only 12 countries for 6 countries there was a positive uni directional causality running from real gdp per capita to electricity consumption per capita an opposite causality for 3 countries and bi directional causality for the remaining 3 countries the result should however be interpreted with care as electricity consumption accounts for less than 4 of total energy consumption in africa and only grid supplied electricity is taken into account

electricity consumption and economic growth in burkina faso a cointegration analysis abstract this study empirically establishes the direction of causality between electricity consumption and economic growth in burkina faso for the period 1968 2003 the bounds test yields evidence of cointegration between electricity consumption gdp and capital formation when electricity consumption and gdp are used as dependent variable causality results indicate that there is no significant causal relationship between electricity consumption and investment estimates however detect in the long run a bidirectional causal relationship between electricity use and real gdp there is also evidence of a positive feedback causal relationship between gdp and capital formation burkina faso is therefore an energy dependent country it is also a country in which electricity consumption is growing with the level of income all of this shows that electricity is a significant factor in socio economic development in burkina faso as such energy policy must be implemented to ensure that electricity generates fewer potential negative impacts

energy consumption and economic growth evidence from the economic community of west african states ecowas access to modern energy is believed to be a prerequisite for sustainable development poverty alleviation and the achievement of the millennium development goals however theoretical models and empirical results offer conflicting evidence on the relationship between energy consumption and economic growth that we remain largely unsure of the cause and effect nature of this relationship if indeed a relationship exists at all this paper tests in a panel context the long run relationship between energy access and economic growth for fifteen african countries from 1980 to 2008 by using recently developed panel cointegration techniques we adopt a three stage approach consisting of panel unit root panel cointegration and granger causality tests to study the dynamic causal relationships between energy consumption energy prices and growth as well as relationship between electricity consumption prices and growth results show that gdp and energy consumption as well as gdp and electricity move together in the long run by estimating these long run relationships and testing for causality using panel based error correction models we found unidirectional long run and short run causality the causality is running from gdp to energy consumption in the short run and from energy consumption to gdp in the long run there is also evidence of unidirectional causality running from electricity consumption to gdp in the long run this study thus provides empirical evidence of long run and causal relationships between energy consumption and economic growth for our sample of fifteen countries suggesting that lack or limited access to modern energy services could hamper economic growth and compromise the development prospects of these countries

a role for monetary policy when prices reveal information an example in an example monetary policy can determine the information revealed by prices and thus it can be effective monetary policy that varies only with public information can guarantee the full revelation of information at equilibrium which is optimal full indexation need not attain full revelation and as a consequence need not implement an optimal allocation

improving electricity supply security in ghana the potential of renewable energy for decades ghana s economy has been fuelled by abundant inexpensive hydropower as a developing economy ghana s electricity demand has long been relatively low though rising in recent times due to increasing economic growth urbanization and industrial activities however the rapid demand growth as well as periodic hydrological shocks leaves the country increasingly reliant on expensive oil and gas based generation power plants with a resultant drain on the national economy the main electricity generation company the volta river authority is not able to generate enough electricity for all the demand sectors the electricity supply demand margins the difference between peak demand and available supply of the country fall short of the recommended engineering practice and thus presents a high supply security risk the country has been experiencing an increase in the frequency of power cuts over the last ten years it is clear that ghana will have to expand and diversify its generation capacity in order to improve supply security this paper provides a review of the assessed potential renewable energy resources their current exploitation status and their potential contribution to the electricity supply of the country the paper also presents the barriers to their utilization and the existing policy and regulatory instruments to overcome those barriers plus the current and expected future impacts of these instruments the results show that ghana has several res such as wind solar pv mini hydro and modern biomass that can be exploited for electricity production while their exploitation for electricity generation is currently very low providing just 0 13 of the country s generation the review shows a great potential for res generation to increase substantially over the next decade looking at the government commitment and legal frameworks that are being put in place

the generic existence of rational expectations equilibrium in the higher dimensional case abstract the study of the generic existence of rational expectations equilibrium has concentrated on three cases according to whether the space of states of private information has dimension less than equal to or greater than the price space previous results have shown that in the first case fully revealing equilibria exist generically and in the second case there are open sets of environments with no equilibrium this paper shows that in the third case there is a residual set of environments which permits equilibria which are arbitrarily close to fully revealing

energy economic growth and causality in developing countries a case study of tanzania and nigeria the debate about the precise role of energy in economic development remains contentious existing empirical studies have produced varying results some have argued the complementarity between energy and other factors of production and others have indicated that energy can be substituted for other factors of production commonly these studies have focused primarily on the developed countries one explanation being that supply constraints and price rigidities render any study on factor substitutions in developing countries meaningless however the functional relationship between energy consumption and income in developing countries is constantly investigated with the use of regression techniques while such techniques are useful in empirical analysis no mechanism exists for indicating causal directions between variables this limits the scope for policy analysis and prescription the need to identify causal direction between energy consumption and income growth in developing countries is overwhelming apart from providing further insights into the role of energy in economic development it provides policy analysts with a clearer understanding of the likely impact of energy supply constraints on economic growth this article examines the causal directions between energy consumption and economic growth proxied by gdp and gnp for nigeria and tanzania the results show a simultaneous causal relationship between energy and economic growth for both countries the implication being that unless energy supply constraints are eased economic growth and development will remain elusive to these countries given similar economic characteristics and profiling the same energy scenario for other developing countries our finding supports the view that energy plays a key role in economic development

incomplete markets allocative efficiency and the information revealed by prices abstract we compare rational expectations equilibria with different degrees of information revelation through prices these equilibria arise in a two period exchange economy with finitely many states and signals multiple commodities and incomplete financial markets for nominal assets we show that there are always equilibria where information is redundant in the sense of being of no value to the uninformed traders we give conditions under which for a generic set of economies parametrized by endowments and utilities there exist open sets of equilibria for which allocative and informational efficiency are independent with implications for monetary policy journal of economic literature classification numbers d52 d60 d82 e52

carbon emissions energy consumption and output a threshold analysis on the causal dynamics in emerging african economies abstract following the recent global economic downturn attention has gradually shifted towards emerging economies which have experienced robust growth amidst sluggish growth of the world economy a significant number of these emerging economies are in africa rising growth in these economies is associated with surging demand for energy to propel the engines of growth with direct implications on emissions into the atmosphere further these economies are constantly being shaped by series of structural reforms with direct and indirect effects on growth demand for energy etc to this end this paper examines the causal dynamics among energy use real gdp and co2 emissions in the presence of regime shifts in six emerging african economies using the gregory and hansen 1996a j econ 70 99 126 threshold cointegration and the toda and yamamoto 1995 j econometrics 66 225 250 granger causality techniques results confirm the presence of regime shift effects in the long run inter linkages among energy use real gdp and co2 emissions in the countries considered thus indicating that structural changes have both economic and environmental effects hence integration of energy and environmental policies into development plans is imperative towards attaining sustainable growth and development

spatially rebalancing the uk economy towards a new policy model martin r pike a tyler p and gardiner b spatially rebalancing the uk economy towards a new policy model regional studies the current uk government has announced its intention to rebalance the national economy spatially to create a northern powerhouse to rival that in london and the south east this imbalance is in fact a longstanding problem that 90 years of regional policy has not resolved this paper argues that the entrenched nature of the uk s spatial imbalance derives in part from the centralized nature of the national political economy and that only a bold and radical change in that political economy based on a devolution and decentralization of or economic financial and political power is called for

renewable energy electricity development in ghana observations concerns substitution possibilities and implications for the economy abstract can ghana build its economy on renewable energy is it possible to substitute nonrenewable for renewable energy what is the impact of renewable energy on the economy of ghana these questions are relevant and worth considering as far as the renewable energy development agenda in ghana is concern using the translog production function approach this study primarily investigates whether ghana can move away from nonrenewable electricity generation to renewable power generation in particular we provide estimates for the relationship between the two energy types and output the estimates are then used to calculate the output and substitution elasticities between renewable and nonrenewable energy our findings show that while the impact of nonrenewable energy on ghana s economy is negative that of renewable energy is insignificant with output elasticities for both energy types averaging 0 139 and 1 875 respectively even though substitution elasticity suggests the possibility of moving towards a renewable power generation system this study also highlights the limitations associated with such transition citing inherent problems such as scale cost and location based on the analysis done in the context of the findings this study recommends a policy that supports an optimal energy matrix with both renewable and nonrenewable sources

trivariate causality between economic growth urbanisation and electricity consumption in angola cointegration and causality analysis abstract this paper investigates the causal relationship between economic growth urbanisation and electricity consumption in the case of angola while utilizing the data over the period of 1971 2009 we have applied lee and strazicich 2003 the review of economics and statistics 63 1082 1089 2004 working paper department of economics appalachian state university unit root tests to examine the stationarity properties of the series using the gregory hansen structural break cointegration procedure as a complement we employ the ardl bounds test to investigate long run relationships the vecm granger causality test is subsequently used to examine the direction of causality between economic growth urbanisation and electricity consumption our results indicate the existence of long run relationships we further observe evidence in favour of bidirectional causality between electricity consumption and economic growth the feedback hypothesis is also found between urbanisation and economic growth urbanisation and electricity consumption granger cause each other we conclude that angola is energy dependent country consequently the relevant authorities should boost electricity production as one of the means of achieving sustainable economic development in the long run

an international literature survey on energy economic growth nexus evidence from country specific studies in this paper an extensive review of the rapidly growing in the literature on the nexus between economic growth and four types of energy consumption total energy consumption electricity consumption nuclear consumption and renewable consumption the various hypotheses associated with the causal interaction between these variables along with a survey of the empirical literature are also discussed the survey focuses on country coverage periods modeling techniques and empirical conclusions a general observation from these studies that results are found to be sensitive to methodology and type of energy considered the empirical results for the specific countries surveyed show that i for energy consumption growth nexus 29 supported the growth hypothesis 27 the feedback hypothesis 23 the conservation hypothesis and 21 the neutrality hypothesis ii for the electricity consumption growth nexus 40 supported the growth hypothesis 33 the feedback hypothesis and 27 conservation hypothesis iii for the nuclear consumption growth nexus 60 supported the neutrality hypothesis and 40 the growth hypothesis and iv for the renewable consumption growth nexus 40 supported the neutrality hypothesis 40 the conservation hypothesis and 20 the growth hypothesis these mixed results may be attributed to the different used data selected variables and econometric approaches undertaken

energy consumption and economic growth the experience of african countries revisited abstract the aim of this paper is to re examine the causal relationship between energy consumption and economic growth for seventeen african countries in a multivariate framework by including labor and capital as additional variables we apply the variance decomposition analysis due to pesaran and shin pesaran m h and shin y generalised impulse response analysis in linear multivariate models economics letters 1998 58 17 29 to evaluate how important is the causal impact of energy consumption on economic growth relative to labor and capital the results of our multivariate modified granger causality analysis due to toda and yamamoto toda h y and yamamoto t statistical inference in vector autoregressions with possibly integrated process journal of econometrics 1995 66 225 250 tend to reject the neutrality hypothesis for the energy income relationship in fifteen out of the seventeen countries in contrast results of our variance decomposition analyses show that in eleven out of the seventeen countries energy is no more than a contributing factor to output growth and not an important one when compared to capital and labor labor and capital are the most important factors in output growth in fifteen out of the seventeen countries however these results should be interpreted with care as they may not be sufficiently robust enough to support the inference that energy consumption plays a minor role in the economic growth of african countries

delving into liberia s energy economy technical change inter factor and inter fuel substitution abstract the industrial energy mix of liberia is dominated by petroleum products this has generated serious environmental problems contributing immensely to co 2 emissions and other pollutants in the country this study has attempted to investigate the potential for inter factor and inter fuel substitution between capital labor petroleum and electricity in liberia by employing a translog production and cost function approach ridge regression procedure has been adopted to estimate the parameters of the function due to multicollinearity in the data estimation results show that all inputs are substitutes these suggest that price based policies coupled with capital subsidy programs can be adopted to redirect technology use towards cleaner energy sources like electricity hence retaining the ability to fuel the economy while also mitigating greenhouse gas ghg emissions substitution between energy and labor and energy and capital implies that removal of price ceilings on energy in liberia would tend to reduce energy use and increase capital and labor intensiveness notwithstanding the study seems to show no evidence of convergence in relative technological progress of the four inputs implying that petroleum will continue to play a dominant role in the energy consumption mix of liberian industry while labor investment will continue to outweigh capital inputs finally the findings of this study provide general insights and underscore the importance of policies that focus on installed capacity of renewable electricity energy intensity targets as well as merger of enterprises

output renewable energy consumption and trade in africa abstract we use panel cointegration techniques to examine the relationship between renewable energy consumption trade and output in a sample of 11 african countries covering the period 1980 2008 the results from panel error correction model reveal that there is evidence of a bidirectional causality between output and exports and between output and imports in both the short and long run however in the short run there is no evidence of causality between output and renewable energy consumption and between trade exports or imports and renewable energy consumption also in the long run there is no causality running from output or trade to renewable energy in the long run our estimations show that renewable energy consumption and trade have a statistically significant and positive impact on output our energy policy recommendations are that national authorities should design appropriate fiscal incentives to encourage the use of renewable energies create more regional economic integration for renewable energy technologies and encourage trade openness because of its positive impact on technology transfer and on output