market power versus regulatory power in the spanish electricity system 1973 1996 this study not only establishes that the institutional changes the change of political regime and economic changes the energy crisis that occurred during the 70s and 80s had an important effect on business strategies within the spanish electricity sector but above all it shows how the resulting regulatory model was not the product of any clearly defined plan on the part of the spanish authorities as the majority of authors seem to implicitly or explicitly maintain but rather it arose from the dialectical interaction between companies which resisted losing the power of the market and institutions which in order to define any medium term energy policy in the future european domestic electricity market required an increase in their regulatory power

short run effects of devaluation a disaggregated analysis of latin american exports conventional models examining the relationship between devaluation and exports are based on exchange rate pass through these suggest that after devaluation exports become cheaper relative to other exports and the growing export market is posited to stimulate the economy if devaluation has a differential effect across commodities countries can expect different results depending on their portfolios therefore any accurate analysis of the effects of devaluation must take into account the components of a country s export portfolio the pooled time series estimation for latin american countries reveals a negative short run relationship between real devaluation and export growth for most exports at a disaggregated level the results of this study are far reaching as they suggest that more targeted policies are better suited to stimulate exports

profitability and productivity changes in the korean electricity industry abstract the korean electricity industry saw significant changes following the reform in april 2001 until the last decade the industry was monopolized by the korea electric power corporation kepco a state owned vertically integrated company the 2001 reform divided kepco s power generation division into six power generation companies gencos with the aim of improving efficiency and introducing competition in the electricity industry in this study we used capital total factor productivity ktfp to analyze profit changes from fixed input capital and an index number profit decomposition inpd to examine the sources of the profit changes we investigate the industry thoroughly from three points of view the overall industry over time the power generation sector by company and the transmission and distribution sectors of the korea electric power corporation kepco next we measured how the profits from productivity growth were distributed to consumers fuel suppliers employees and company owners the results suggest that a more reasonable price system for both wholesale and consumer prices needs to be implemented prior to the privatization and deregulation of the korean electricity industry

progress in renewable energy under clean development mechanism in india abstract kyoto protocol was the first agreement regarding control of climate change problems clean development mechanism cdm was included in the kyoto protocol to promote sustainable development in developing countries non annex i countries and assist developed countries annex i countries to achieve their emission reduction targets cdm allows trading of emissions reductions and helps to increase sustainable development in a developing country and reduce global emissions in developed country renewable energy sources are the appropriate alternatives for sustainable development through cdm india is one of the emerging nations in renewable energy sector government of india is trying to enhance energy generation through renewable and carbon trading this paper shows the current status and progress of renewable energy through cdm in india

red electrica de espana s a instrument of regulation and liberalization of the spanish electricity market 1944 2004 abstract to understand the regulation system of the spanish electricity market it is first necessary to understand on the one hand the system of tariffs and prices and on the other the organization of the market for high voltage distribution this article is concerned with this second aspect and traces its history from 1944 this is because before that date it was not possible to speak of a truly national market but rather only of regional monopolies in the 1940s with franco s new political regime and the development of the spanish electricity sector it became necessary to completely rethink business strategies in relation to competition and cooperation as well as the regulatory function of the state in the 1950s the main feature of the sector was the system of business self regulation permitted by the state throughout the remaining years of franco s government state intervention was particularly focussed on the subject of tariffs but with the onset of democracy the state was to involve itself in the transmission network as well a debate began as to whether it should be run by a private or public operator in this dispute were ranged on the one hand the economic policy concepts of the major parties psoe and pp and against them the strategic interests of the companies although the high voltage transmission network was nationalized by the state in the mid 1980s establishing a traditional model of regulation the 1990s saw the triumph of a market based regulation strongly influenced by the dominant ideas in the european union which has converted red electrica into a private company currently the tso transmission system operators model has been extended to portugal and has entered into competition cooperation with the other models of the european electricity market

productivity growth technical progress and efficiency in their comment subhash c ray and evangelia desli 1997 hereafter rd point out that the specification of the decomposition of the malmquist productivity index used by fare et al 1994 hereafter fgnz is not unique and propose and compute an alternative specification of that decomposition we will discuss additional decompositions at the end of this note but proceed here by comparing the rd decomposition with fgnz based on both conceptual and computational grounds rd provide a discussion of the overall malmquist productivity index including the important issue of when this index is equivalent to the traditional notion of total factor productivity tfp namely under the condition that the reference technology be consistent with constant returns to scale crs as they point out this will yield a measure of tfp even if the true underlying technology is not crs for example both rd and fgnz use the crs reference technology to compute overall malmquist productivity one of the key issues raised is the role of the underlying scale properties of the benchmark technologies used to define and compute both productivity and its components in particular two reference technologies are employed in both rd and fgnz what we refer to as crs and variable returns to scale vrs technologies by construction these technologies are nested the crs technology contains the vrs technology as in figure 1 in rd this nestedness provides the logical basis for our decomposition at a very intuitive level we would argue that these two benchmarks can be used to provide bounds on the underlying true but unknown technology 2 intuitively we see the vrs technology providing a type of convex inner approximation whereas the crs technology provides a type of convex outer approximation thus these two technologies provide alternative benchmarks they do not require that the data satisfy either crs or vrs another possible intuitive interpretation is that the crs captures a perhaps hypothetical long run and the vrs approximates the short run as a reference technology the crs technology has some very useful features for example it captures the notion of maximal

technical efficiency of french nuclear energy plants this article analyses the efficiency of french nuclear energy plants belonging to edf electricity of france from 2004 to 2008 with a dea data envelopment analysis model the convexity model is used to investigate the technical efficiency of a representative sample of nuclear plants the results indicated that some plants have undergone an improvement in technical efficiency while others have regressed in terms of technical efficiency policy implications related to the results are discussed

efficiency analysis of hydroelectric generating plants a case study for portugal abstract this paper estimates changes in total productivity breaking this down into technically efficient change and technological change by means of data envelopment analysis dea applied to the hydroelectric energy generating plants of edp the portugal electricity company the aim of this procedure is to seek out those best practices that will lead to improved performance in the energy market we rank the plants according to their change in total productivity for the period 2001 2004 concluding that some plants experienced productivity growth while others experienced a decrease in productivity the implications arising from the study are that edp should adopt an internal benchmark management procedure in order to evaluate the relative position of each hydroelectric generating plant and to adopt managerial strategies designed to catch up with the frontier of best practices as the frontier is shifting along the time constant efforts are needed in this respect along the time

assessing the impact of renewable energy deployment on local sustainability towards a theoretical framework renewable energy sources res have a large potential to contribute to the sustainable development sd of specific territories by providing them with a wide variety of socioeconomic and environmental benefits however the existing literature has put much emphasis on the environmental benefits including the reduction of global and local pollutants while socioeconomic impacts have not received a comparable attention these include diversification of energy supply enhanced regional and rural development opportunities creation of a domestic industry and employment opportunities with the exception of the diversification and security of energy supply these benefits have usually been mentioned but their analysis has been too general i e mostly at the national level and a focus on the regional and even more so the local level has been lacking at most studies provide scattered evidence of some of those regional and local benefits but without an integrated conceptual framework to analyse them this paper tries to make a contribution in this regard by developing an integrated theoretical framework which allows a comprehensive analysis of the impact of renewable energy on local sustainability and which can be empirically applied to identify these benefits in different territories

generating efficiency economic and environmental regulation of public and private electricity generators in spain abstract economic regulation of firms with market power has placed increasing emphasis on incentive based regulation such as price caps we focus on the effect of regulation as distinct from ownership and identify the effect of two different regulatory schemes on both publicly and privately owned spanish electricity generators publicly owned generators were more efficient under cost of service regulation private but not public firms responded to incentive regulation by increasing efficiency bringing their productivity to similar levels we introduce some novelty in modelling efficiency including three pollutants and declared plant availability as outputs and we test for the effect of environmental regulation in reducing pollutants

cheap labor meets costly capital the impact of devaluations on commodity firms abstract this paper examines how devaluations affect the relative costs of labor and capital and therefore influence production profitability investment and stock returns for firms in the crisis country as well as competitors in the rest of the world after developing these ideas in a small open economy model the paper performs a series of empirical tests using information for about 1100 firms in 10 commodity industries between 1996 and 2000 the empirical tests support the model s main predictions 1 immediately after devaluations commodity firms in the crisis country have output growth rates about 10 20 higher than competitors in other countries 2 immediately after devaluations commodity firms in the crisis country have operating profit growth rates about 15 25 higher than competitors in other countries 3 the effect of devaluations on fixed capital investment and stock returns and therefore expected long run output and profits is determined by capital labor ratios and changes in the cost of capital for example crisis country firms have higher rates of capital growth and better stock performance after devaluations if they had lower capital labor ratios and there was no substantial increase in their interest rates

the sources of productivity change in spanish banking abstract in this paper we examine the pattern of productivity change in spanish banking over the period 1986 1993 two sectors dominate spanish banking commercial banks and the faster growing savings banks we begin by examining productivity change separately within each sector however since the two sectors are gradually becoming more competitive we continue by merging the two sectors and by examining productivity change in the industry the merging procedure follows a methodology originally proposed by charnes cooper and rhodes 1981 in which intra sectoral managerial inefficiency is eliminated prior to merging this procedure allows us to distinguish differences in managerial efficiency within each sector from differences in the institutional efficiency of the two sectors it also enables us to decompose potential productivity change into institutional efficiency change technical change and the impact of scale economies we find the commercial banks to have had a slightly lower rate of productivity growth but a slightly higher rate of potential productivity growth we attribute this phenomenon to differences in both managerial efficiency and institutional efficiency to differences in the rate of technical progress and to the adverse impact of diseconomies of scale in the commercial banking sector

sudden stops and the mexican wave currency crises capital flow reversals and output loss in emerging markets sudden stops are the simultaneous occurrence of a currency balance of payments crisis with a reversal in capital flows we investigate whether sudden stop crises are a unique phenomenon and whether they entail an especially large and abrupt pattern of output collapse a bmexican waveq using a panel data set over 1975 1997 and covering 24 emerging market economies we distinguish between the output effects of currency crises capital inflow reversals and sudden stop crises sudden stop crises have a large negative but short lived impact on output growth over and above that found with currency crises a currency crisis typically reduces output by about 2 3 while a sudden stop reduces output by an additional 6 8 in the year of the crisis the cumulative output loss of a sudden stop is even larger around 13 15 over a 3 year period our model estimates correspond closely to the output dynamics of the dmexican wavet such as seen in mexico in 1995 turkey in 1994 and elsewhere and out of sample predictions of the model explain well the sudden and seemingly unexpected collapse in output associated with the 1997 1998 asian crisis d 2005 elsevier b v all rights reserved

hyperbolic efficiency and return to the dollar abstract this paper after establishing the relations between hyperbolic graph measure of technical efficiency and the radial measures of technical efficiency shows that the dual cost and revenue interpretation of the hyperbolic efficiency measure is related to georgescu roegen s notion of return to the dollar n georgescu roegen in koopmans t ed activity analysis of production and allocation wiley new york 1951 pp 98 115 once this relation is established it leads to a derivation of an allocative efficiency index which measures the price distortions using data on observed costs and revenues without requiring information on prices

evaluating the market splitting determinants evidence from the iberian spot electricity prices abstract this paper aims to assess the main determinants on the market splitting behaviour of the iberian electricity spot markets iberia stands as an ideal case study where the high level deployment of wind power is observed together with the implementation of the market splitting arrangement between the portuguese and the spanish spot electricity markets logit and non parametric models are used to express the probability response for market splitting of day ahead spot electricity prices as a function of the explanatory variables representing the main technologies in the generation mix wind hydro thermal and nuclear power together with the available transfer capacity and electricity demand logit models give preliminary indications about market splitting behaviour and then notwithstanding the demanding computational challenge a non parametric model is applied in order to overcome the limitations of the former models results show an increase of market splitting probability with higher wind power generation or more generally with higher availability of low marginal cost electricity such as nuclear power generation the european interconnection capacity target of 10 of the peak demand of the smallest interconnected market might be insufficient to maintain electricity market integration therefore pro active coordination policies governing both interconnections and renewables deployment should be further developed

productive efficiency in public and private firms abstract this paper compares the degree of x inefficiency which emerges as a consequence of the imposition of the optimal incentive contracts in public and private firms using a straightforward principal agent model with two possible states of the world it establishes the rather surprising result that in the good state of the world public ownership always results in a higher degree of productive efficiency

malmquist indices of productivity change in the uk gas industry before and after privatization the uk government s privatization programme was justified in terms of potential efficiency gains this paper concentrates on measures of technical efficiency in the regions of the uk natural gas industry before and after privatization and the associated regulatory changes it uses non parametric frontier analysis and malmquist indices to show that the rate of productivity growth increased significantly after privatization however the differences in technical efficiency amongst regions remain suggesting that failure to break up the industry has sacrificed potential gains from direct competition or indirect competition through yardstick regulation

an institutional framework for the development of sustainable and competitive power market in pakistan abstract pakistan is continuously striving for sustainable and competitive power market under the comprehensive power sector reform program pakistan shifted its power market from monopoly model to single buyer model by unbundling water and power development authority wapda and establishing national transmission and dispatch company ntdc current severe power situation in the country is triggering the government of pakistan gop to accelerate the implementation of intended reform program and to readily undertake next planned transformation i e from single buyer model to wholesale market model this research endeavors the future dynamics of power market after the structural spin off by pre assessment of upcoming wholesale power market market power of both public and private electricity generators has been computed using 8 largest firm concentration ratio herfindahl hirschman index hhi and residual supply index rsi the findings suggest that future power market will function with non existence of market power except in the periods of peak electricity demand and maximum hydro generation furthermore insufficient installed capacities and underutilization of public thermal units may enable some players to exercise market power for sustainable and competitive power market an empirically supported framework has been proposed based on the analysis the framework proposes utilization of huge available renewable energy potential for future which will protect the whole infrastructure from market power it recommends respective roles and responsibilities for the smooth transition among market models the framework will be supportive in terms of successful and smooth transition from single buyer model to wholesale market model and potential of wind solar biogas to be properly explored and utilized to reduce energy gap

development challenges under the clean development mechanism cdm can renewable energy initiatives be put in place before peak oil abstract the sustainable development aspect of the clean development mechanism cdm under the kyoto protocol is examined with regard to its current impact on crucial developmental issues the paper discusses the immediate and urgent global concerns of developmental needs energy and climate change whilst highlighting their influence on the poor in the developing world the global responses to address the above concerns in terms of renewable energy technologies policies and strategies that can be instrumental in addressing the issues are discussed with main emphasis on the cdm under the kyoto protocol the critical issue of whether the cdm can address poverty alleviation and sustainable development in developing countries is discussed in the context of existing market principles transparency of the mechanism economics and the daunting bureaucratic procedures involved the paper concludes that the cdm if suitably modified can go some way to address sustainable development and alleviate poverty for poor rural areas and not increase emissions by a focus on renewable energy technologies this result can be achieved as the energy consumption of rural sectors is currently so small relative to developed economies that only small additional renewable energy generation capacities are needed to make a measurable difference

investment pass through and exchange rates a cross country comparison using detailed data from the united states canada the united kingdom and japan we examine the implications of exchange rates for time series of sectoral investment both theoretically and empirically we show that investment responsiveness to exchange rates varies over time positively in relation to sectoral reliance on export share and negatively with respect to the share of imported inputs in production important differences exist in investment endogeneity across high and low price over cost markup sectors with investment in low markup sectors often significantly more responsive to exchange rates cross country differences in investment response are only partially explained by industrial organization arguments

service quality in the electricity industry the role of privatization and managerial behavior abstract this paper analyzes the relationship between privatization and service quality in the electricity industry and tests the hypothesis that managerial behavior is a significant intervening factor the sample includes 31 italian distributors over the period 1998 2004 their quality performance is represented by continuity of supply an aspect of quality that is both contractible and regulated results of the empirical analysis suggest that the transfer of shareholdings to private investors does not lead to quality degradation the results also suggest that managerial dominance translates into a reduction in supply quality this effect is likely to be particularly strong for public sector utilities

non parametric efficiency progress and regress measures for panel data methodological aspects this purely methodological paper deals with the role of time in non parametric efficiency analysis using both fdh and dea technologies it first shows how each observation in a panel can be characterized in efficiency terms vis a vis three different kinds of frontiers i contemporaneous ii sequential and iii intertemporal these are then compared with window analysis next frontier shifts outward and inward interpreted as progress or regress are considered for the two kinds of technologies and computational methods are described in detail for evaluating such shifts in either case these are also contrasted with what is measured by the malmquist productivity index finally an alternative way of identifying progress and regress independent of the frontier notion and referring instead to some benchmark notion is extended here to panel data

the behaviour of productivity growth rates and price cost margins during contractions and expansions panel data on thirteen two digit us manufacturing industries were analysed using a random coefficients approach to determine the behaviour of total factor productivity growth rates and price marginal cost ratios during recessions and expansions results show 1 productivity growth is procyclical it decreases during recessions and increases during expansions in addition the decrease during recessions is greater than the increase during expansions 2 the price marginal cost ratio is very asymmetric it decreases during recessions but shows no significant movement during an expansion the lower price marginal cost ratio during a recession implies that the elasticity of output with respect to labour decreases thus not only does the level of productivity fall but the productivity of labour relative to capital also falls these characteristics are consistent with labour hoarding

integrating the regulatory and utility firm perspectives when measuring the efficiency of electricity distribution abstract several dea applications for benchmarking in utility regulation use classical models which reveal inconsistencies due to pareto inefficient targets the natural course of action would be to incorporate weight restrictions reflecting value judgments and requiring interaction between analyst and decision maker we show that weight restricted dea models still present some inconsistencies since it is not possible to ensure that the target both dominates the observed dmu and lies on the empirical production frontier besides the decision maker and analyst interaction it is necessary to consider a further distinction between the two parties the regulatory agency and the utility company which adopt different criteria to determine the efficient target a model to obtain a preferred target dea index is formulated taking advantage of the dual based dea graphical analysis thus we propose a two phase dea analysis that can integrate both perspectives a case study about the brazilian electricity sector is included which illustrates the above mentioned issues

the effect of peru s cdm investments on households welfare an econometric approach abstract the clean development mechanism cdm under the kyoto protocol has two main objectives reducing emissions of greenhouse gases ghgs and contributing to sustainable development sd in developing countries the empirical evidence indicates that the first goal has been fulfilled however the literature mostly provides ex ante evidence regarding the second goal this paper contributes to the literature by assessing the ex post quantitative effect that cdm projects have had on sd employment and monetary welfare in peru a country ranked among the most important cdm investment host countries worldwide the econometric model estimates the direct and indirect effects of the cdm projects investments on peruvian households monetary welfare for 2011 2015 our results suggest that cdm investments had a slight effect on household consumption expenditure and had no effect neither on employment nor in poverty alleviation our findings suggest the need to strengthen cdm s institutional framework by identifying key development definitions and indicators

a sequential malmquist luenberger productivity index environmentally sensitive productivity growth considering the progressive nature of technology this study proposes an index for measuring environmentally sensitive productivity growth which appropriately considers the nature of technical change the rationale of this methodology is to exclud

can the clean development mechanism cdm deliver abstract the paper investigates whether the clean development mechanism cdm under the kyoto protocol has played a significant role in the development of rural communities specifically investigating uptake of small scale renewable energy projects the investigation involved an assessment of 500 registered small scale cdm projects under the kyoto protocol in terms of their potential impact on the envisaged sustainable development goals for rural communities five case studies from the indian subcontinent were also examined the paper concludes that the cdm in its current state and design has typically failed to deliver the promised benefits with regard to development objectives in rural areas successful projects were found to have had good community involvement and such projects were typically managed by cooperative ventures rather than money making corporations the paper puts forward a new framework for the assessment of such benefits in the hope that future projects can be better assessed in this regard the key problem however remains on how to deal with the inherent contradiction between development and sustainability

goods prices and exchange rates what have we learned import prices typically change by a smaller proportion than the exchange rate between the exporting and importing country recent research indicates that common currency relative prices for similar goods exported to different markets are highly correlated with exchange rates between those markets this evidence suggests that incomplete pass through is a consequence of third degree price discrimination while distance matters for market segmentation borders have independent effects the source of the border effect has not been clearly identified furthermore there is little evidence yet to suggest substantial market power is implied by the observed price discrimination

the malmquist total factor productivity index the definitions of the malmquist output and input quantity indexes specified by d w caves l r christensen and w e diewert 1982 are applied in this study based on these indexes a malmquist total factor productivity index is derived for general production structures the definition maintains the fundamental characteristic of a productivity index as a ratio between an output quantity change index and an input quantity change index this index provides a remedy for the shortcoming of the traditional definition of the malmquist productivity index in that the latter does not correctly measure changes in productivity in the presence of changes in returns to scale copyright 1996 by the editors of the scandinavian journal of economics

u s equity and commodity futures markets hedging or financialization abstract in this paper we investigate the hedging versus the financialization nature of commodity futures vis a vis the equity market using a arma filter based correlation approach our results suggest that while gold futures are typically seen as a hedge against unfavorable fluctuations in the stock market the majority of commodity futures appears to be treated as a separate asset class in line with their increasing financialization our results are robust to the presence of inflation highlight the hedging role played by fuel energy commodity futures in the nineties and reveal that the commodity financialization boosted since the 2000s we also show that gold futures are partially a safe haven for equity investments in the short term but not in the mid term finally we uncover some hedging financialization of crude oil futures associated to global demand oil supply shocks

the role of exchange rates in a popular model of international trade abstract this paper examines the empirical relationship between the real effective exchange rate and the aggregate real trade balance for five major oecd countries in the post bretton woods era a variety of parametric and non parametric techniques are used there is little evidence that the exchange rate significantly affects the trade balance

productivity growth environmental regulation and win win opportunities the case of chemical industry in italy and germany abstract this paper analyzes the environmental and economic efficiency of a sample of firms located in italy and germany operating in the chemical sector and included in the european pollution release and transfer register e prtr the directional distance function ddf approach in a conditional setting has been applied to obtain efficiency score and total factor productivity tfp growth indexes considering pollution in computations emissions increase in absolute term between 2004 and 2007 with a worse performance of italian firms but efficiency indicators show a reduction of inefficiency over time with similar performance of firms from the two countries the formal test for the porter s hypothesis suggests that chemical firms suffering higher compliance costs in the first period react with investment increasing productivity in the following years the empirical evidence robust to different specifications and estimation methods supports the presence of win win opportunities

price regulation in the spanish energy sectors who benefits abstract this paper analyses the distribution of benefits between firms and consumers due to the price regulation of the spanish energy sectors electricity oil fuels and gas during the decade 1987 1997 to that effect we compare the actual evolution of energy prices with alternate benchmarks in order to assess the potential existence of a pro industry or a pro consumer bias in the pricing policies followed by the regulator our results show a pro industry biased regulatory context where consumers benefitted very little from price control the successive price adjustments over time allowed the companies to keep all the productivity gains and cost reductions and to increase their profitability rates relative to those achieved in the manufacturing sector

productivity growth technical progress and efficiency change in industrialized countries this paper analyzes productivity growth in 17 oecd countries over the period 1979 1988 a nonparametric programming method activity analysis is used to compute malmquist productivity indexes these are decomposed into two component measures namely technical change and efficiency change we find that u s productivity growth is slightly higher than average all of which is due to technical change japan s productivity growth is the highest in the sample with almost half due to efficiency change jel c43 d24 in this paper we apply recently developed

efficiency assessment and benchmarking of thermal power plants in india abstract per capita consumption 1 of electricity in india is many folds lesser than canada usa australia japan chaina and world average even though total energy shortage 2 and peaking shortage 3 were recorded as 11 2 and 11 85 respectively in 2008 09 reflecting non availability of sufficient supply of electricity performance improvement of very small amount can lead to large contribution in financial terms which can be utilized for capacity addition to reduce demand supply gap coal fired thermal power plants are main sources of electricity in india in this paper relative technical efficiency of 60 coal fired power plants has been evaluated and compared using ccr and bcc models of data envelopment analysis target benchmark of input variables has also been evaluated performance comparison includes small versus medium versus large power plants and also state owned versus central owned versus private owned result indicates poor performance of few power plants due to over use of input resources finding reveals that efficiency of small power plants is lower in comparison to medium and large category and also performance of state owned power plants is comparatively lower than central and privately owned study also suggests different measures to improve technical efficiency of the plants

a new approach for determining exchange rate level preferences in research on the political economy of exchange rates a good understanding of who will endorse and who will oppose certain exchange rate policies is central to understanding how actual exchange rate policies are made and how the global exchange rate system changes over time since existing classifications of exchange rate level preferences have several shortcomings this article proposes a new and more nuanced strategy for identifying preferences on exchange rate valuation this approach takes into account the complex interrelationship between exchange rate and monetary policy and the effects of these policies on balance sheets in addition the approach accounts for the dynamics of preference formation and change comparative case studies of currency crises in hong kong south korea thailand and taiwan show that considering actors vulnerabilities to exchange rate and interest rate changes enhances understanding of their exchange rate level preferences the case studies also indicate that societal preferences affect policy outcomes exchange rate stability was maintained in countries where private actors vulnerabilities to depreciation were high however when pressure intensified exchange rates were subsequently depreciated in countries where vulnerabilities to a monetary tightening exceeded the potential costs of depreciation

booms and slumps in world commodity prices abstract this paper examines the duration and magnitude of cycles in world commodity prices cycles are a dominant feature of commodity prices and dealing with the economic consequences of booms and slumps in prices continues to be one of the most challenging issues facing policymakers in commodity exporting developing countries we find that there is an asymmetry in commodity price cycles as price slumps last longer than price booms how far prices fall in a slump is found to be slightly larger than how far they tend to rebound in a subsequent boom in addition for most commodities the probability of an end to a slump boom in prices is independent of the time already spent in the slump boom

exchange rates and prices the adjustment of relative prices to exchange rate movements is explained in an industrial organization approach given labor costs in the respective currencies exchange rate movements change costs for firms selling in the home market and thus disturb the industry equilibrium the extent of absolute and relative price adjustment is shown to depend on market integration product substitutability the relative number of domestic and foreign firms and the market structure the impact of exchange rates on prices is illustrated in a variety of approaches including the cournot a dixit and j stiglitz 1977 and s salop 1979 models some empirical evidence is offered in support of the theory copyright 1987 by american economic association