do contracts matter in canada this paper empirically examines the view that wage rigidity in long term labor contracts matters for the behavior of employment in particular i follow bils s 1991 approach which looks for systematic employment patterns in the first year of long term contracts using a new panel data set which includes annual firm level employment observations from the canadian manufacturing sector i find evidence in many industries that employment over adjusts to shocks that occur during the contract my examination of wage dynamics however indicates that for those industries in which contracts appear to matter for the behavior of employment there is little indication that contractual wage rigidity is the source of the over adjustment of employment

origins and development of the eu ets the successful creation of the european union emissions trading scheme eu ets was not inevitable countries such as canada and japan which might be thought to have a less complex and more cohesive cultural and institutional context failed to do so europe succeeded for a number of reasons with a single market for the economy the logic of a single market for environment is inexorable the european commission which had failed in its earlier efforts to introduce a carbon energy tax made the case for trading with great skill and persistence on the basis of qualified majority voting which meant no country had a veto the uk and denmark initiated their own national schemes and there was a serious risk of balkanising the market with up to 27 different schemes with the losses of scale and scope this would entail meeting the union s kyoto commitments required a substantive pan european response and eu ets was the most credible and effective way of doing so the european parliament and environmental non governmental organisations played a constructive role pushing for more auctioning of allowances and less of them allocated centrally free allocation managed by member states ms was a necessary condition to achieve the support needed so they failed to achieve these objectives in the initial phase but they characterize the commission s proposals post 2012

good things do not always come in threes on the excess cost of overlapping regulation in eu climate policy since the mid 1990 s the european union eu aims at pushing global climate policy the objective is to promote international cooperation by the adoption of substantial eu wide greenhouse gas emission reduction targets and their least cost implementation our quantitative impact assessment of the eu climate and energy package shows that the myriad of instruments used in the eu to curb greenhouse gas emissions is doomed to generate substantial excess cost we conclude that eu climate and energy policy should better disentangle its choices of objectives targets and policy instruments on rigorous economic grounds in order to improve the coherence and overall cost effectiveness of policy initiatives

cap and trade a sufficient or necessary condition for emission reduction influenced by the success of emission trading in the us for sulphur dioxide so 2 some economists have argued for an upstream economy wide cap and trade scheme as the primary tool for achieving the required reduction in greenhouse gas ghg emissions this paper addresses that argument and concludes that cap and trade will need to be accompanied by complementary regulatory measures while it is a necessary component in a climate mitigation programme it is unlikely to be sufficient by itself to accomplish the desired emission reductions the paper reviews the evidence on how so 2 emissions were reduced and the extent to which actual emission trading was responsible for the reduction as opposed to other innovations it also identifies differences between the past regulation of so 2 and other air pollutants and the challenges presented by the regulation of ghg emissions what actually happened in the us with so 2 emission trading deviated in several significant respects from what would be predicted based on the conventional theoretical analysis while there was a dramatic reduction in so 2 emissions it occurred because of several factors some of which are unlikely to apply for ghg emissions and others of which argue for an activist regulatory policy by the government as a complement to the functioning of an emissions market for ghgs copyright 2010 oxford university press

wage rigidity in canadian collective bargaining agreements the authors search information on the provisions of 10 947 wage contracts signed in the canadian unionized sector between 1976 and 1999 for evidence of downward nominal wage rigidity the disinclination of wages to fall in nominal dollars below their established level over the sample period real wage reductions were common but nominal wage reductions were rare the probability of downward nominal wage rigidity increased substantially during low inflation periods during such periods apparently there was no reduction in the incidence of real wage cuts but the magnitude of those cuts was modest suggesting a lesser ability of wages to adjust to labor market conditions than at other times

monetary policy in the presence of asymmetric wage indexation we study optimal monetary policy in the presence of asymmetric wage indexation we find that the monetary authorities do not react to small output shocks and that their reaction to large shocks is asymmetric insofar as they absorb positive shocks more than negative ones as a consequence we observe that asymmetric wage indexation can be contractionary it has ambiguous effects on expected inflation and welfare relative to an equivalent symmetric indexation optimal symmetric inflation however always outperforms optimal asymmetric indexation

un cola why have cost of living clauses disappeared from union contracts and will they return 1 introduction one of the major changes in collective bargaining in recent decades has been the gradual elimination of cost of living adjustments colas from union contracts in 1976 61 of union workers covered by major collective bargaining contracts had cola provisions but by the end of 1995 when the u s bureau of labor statistics stopped collecting data on collective bargaining settlements cola coverage had fallen to 22 1 although the decline in cola rates has been studied extensively there is no agreement as to which factors are primarily responsible for this decline one view attributes the elimination of colas or escalator clauses to declines in inflationary uncertainty a second view emphasizes the erosion of union power yet another view focuses on structural shifts in the u s economy previous research has not determined the relative importance of these and other hypotheses another reason to reassess cola determination is that the economy has changed since the early research was completed the bulk of studies to examine cola incidence statistically have relied on sample periods that end in 1982 or earlier 2 since then there have been major changes in union strength inflationary uncertainty and other potential determinants of wage indexation including deregulation of certain industries in addition more than 90 of the decline in cola rates has occurred since 1982 it is worthwhile to determine whether the factors deemed to be important in the early studies are still important we provide a comparison with previous research formally assess the contributions of various factors to the erosion of cola rates and provide insights as to likely changes in cola coverage in the future if inflation picks up and with it inflationary uncertainty 3 will cola rates rise to levels not seen since the 1970s what would be the consequences of a rebound in union power of further economic deregulation of likely industrial and demographic shifts in the economy once the major causes of past changes in cola coverage are understood it becomes possible to project the consequences of changes in key economic variables given the concern in macroeconomics with wage indexation and the linkage between wages and prices gray 1976 fischer 1986 ball and cecchetti 1991 schiller 1997 the extent to which cola coverage responds to economic factors has important implications for the economy underlying the empirical analysis is a pooled cross sectional time series model of cola incidence that accounts for industry fixed effects to estimate the model we assemble a panel data set of cola coverage and an array of characteristics for 32 private sector industries over a 22 year period because cola clauses are multiyear in nature the model also recognizes that the percentage of workers covered by cola clauses in a particular year depends on conditions in both the current year and previous years previewing results we find that the major cause of the decline in cola coverage has been the reduction in inflationary uncertainty second in importance has been the erosion of union power both the percentage of the industry s workforce that is unionized and the estimated union wage premium in the industry are highly significant determinants of cola coverage but because the union wage premium has remained largely intact in most industries changes in the premium are much less important than losses in unionization in explaining the overall decline in cola provisions economic deregulation industrial shifts and an increased presence of women in the workforce have had modest effects on cola rates on the basis of our findings a rebound in inflationary uncertainty to the levels experienced in the 1970s would raise cola coverage by 10 percentage points 2 background for workers in long term contracts colas provide at least partial protection from the consequences of unexpected inflation

does weather or energy prices affect carbon prices abstract this study investigates the extent that key energy prices coal gas oil and electricity and weather explain carbon prices a key feature of the european union emissions trading scheme eu ets and whether this relationship changed since full auctioning came into effect in 2013 energy prices were found to impact the carbon price in phase iii of the eu ets however modelling based solely on energy prices explained only 12 of carbon price variation weather variables did not affect the carbon price except for unanticipated temperature changes these results indicate that it is not the level of temperature that impacts the carbon price rather it is unanticipated changes in temperature that matter given that climate change is associated with increased variance in temperature this result is consistent with climate change resulting in greater carbon price volatility and higher hedging costs

delays in renewal of labor contracts theory and evidence in many countries an expired labor contract is automatically extended during the often protracted delay before the new contract is signed our theoretical model focuses on macroeconomic factors in explaining the delay it emphasizes the importance of the realized nominal and real shocks and of the levels of nominal and real uncertainty the model is tested using israeli collective wage agreements where long delays are frequent the empirical findings strongly support the theoretical model thus nominal uncertainty is found to increase the delay and real uncertainty to decrease the delay but less in the public than in the private sector

pay and employment determination in britain what are labour contracts really like the recent growth of unemployment in western economies has prompted new research on the workings of the labour market there has been much interest in particular in the questions what determines the level of real pay and why is it apparently so insensitive to changes in aggregate demand and unemployment european economists now find it hard to take seriously the notion still taught to many undergraduate that wages are determined by the intersection of demand and supply curves roughly half of all british employees belong to trade unions a much higher percentage have their pay fixed by some kind of collective bargain in this country it is negotiations not impersonal com petitive markets which decide what most of us will be paid the difficult problem is that of how to understand this process or to put it differently of how to think up the right model of the world

hyperbolic discounting and the phillips curve using a standard dynamic general equilibrium model we show that the interaction of staggered nominal contracts with hyperbolic discounting leads to inflation having significant long run effects on real variables

on the design of optimal grandfathering schemes for emission allowances to meet its commitment under the kyoto protocol the eu plans to implement an emissions trading system whith grandfathering of allowances besides having distributional impacts the choice of the grandfathering scheme may affect efficiency if firms anticipate how future allocations depend on upcoming decisions in this paper we determine central design rules for optimal grandfathering within a simple two period model we find that for small open trading systems where allowance prices are exogenous first best second period grandfathering schemes must not depend on firm specific decisions in the first period second best schemes correspond to a ramsey rule of optimal tax differentiation and are generally based on both previous emissions and output however ofr closed emissions trading systems i e endogeneous allowance prices firstand second best rules coincide and must not depend on previous output levels they consist of an assignment proportional to the emissions in the first period plus a term which does not depend on firm specific decisions in either of the two periods

european emission trading scheme and competitiveness a case study on the iron and steel industry abstract we quantify the impact of the european emission trading scheme ets on the two dimensions of competitiveness production and profitability for the iron and steel industry among those covered by the scheme this sector is one of the most exposed since it is both highly co 2 intensive and relatively open to international trade we also examine the robustness of these results to various assumptions marginal abatement cost curve trade and demand elasticities as well as pass through rates and updating of allocation rules of which the latter two are scarcely debated we conclude that for this sector competitiveness losses are small we prove this conclusion to be robust hence arguments against tightening the environmental stringency of the ets in phase ii are not justified on grounds of competitiveness loss our systematic sensitivity analysis allows us to identify the important assumptions for each output variable it turns out that pass through rates and updating rules are significant despite being often implicit and least debated in existing analyses

marginal abatement costs of greenhouse gas emissions from european agriculture cost effectiveness and the eu non ets burden sharing agreement abstract we propose a quantitative assessment of the marginal abatement costs mac of greenhouse gas emissions from european agriculture and analyze the implications of the non ets burden sharing agreement bsa for this sector this assessment is based on mac reduced forms the generic specification of which enables simple parameterization and numerical computations such mac curves are parameterized for each member state using the outputs of a detailed model of the european agricultural supply they are then used to compute total and marginal abatement costs involved by the bsa targets as well as the cost effective effort sharing the corresponding emission price and abatement costs the main findings are i flexibility mechanisms such as a cap and trade system for agricultural emissions could reduce the total costs of meeting the 10 eu abatement target by a factor two to three relative to the strict implementation of each country s target ii the corresponding equilibrium emission price is found to be 32 42 tco2eq depending on the assumption regarding business as usual emissions and iii a cap and trade system with allowances based on the bsa targets would involve substantial transfers from eu 15 countries to new member states an important share of which being made of hot air

on union preferences and labour market models insiders and outsiders this paper constructs a model of trade union behavior in which there is a distinction between insiders and outsiders this is used to examine one of the most troublesome issues in macroeconomic theory namely the extent to which a rise in aggregate demand might generate wage increases rather than growth in employment a generalization of the most widely used union utility function is presented the analysis reveals the conditions under which insiders will agree to let outsiders into employment derives two step wage preferences and proves a new result on wage rigidity copyright 1987 by royal economic society

extending the sectoral coverage of an international emission trading scheme in a model inspired by the eu emissions trading scheme non cooperative countries allocate their emissions to internationally trading and non trading sectors each country is better off with trading than without and aggregate welfare is maximized with all sectors in the trading scheme we analyze the effects of extending the sectoral coverage of the trading scheme in a two country model with quadratic abatement costs if only the original trading sector is asymmetric between countries the welfare change is always positive and the same in both countries if the original and additional trading sectors are asymmetric one country might lose but there is an aggregate welfare gain if the original trading sector and the non trading sector are asymmetric both countries always gain

ambiguity aversion and the absence of wage indexation abstract this paper analyzes optimal wage contracting assuming agents are not subjective expected utility maximizers but are instead ambiguity or uncertainty averse decision makers who maximize choquet expected utility we show that such agents will choose not to include any indexation coverage in their wage contracts even when inflation is uncertain unless the perceived inflation uncertainty is high enough significantly the exercise does not presume any exogenous costs e g transactions costs of including indexation links

price drivers and structural breaks in european carbon prices 2005 2007 this article aims at characterizing the daily price fundamentals of european union allowances euas traded since 2005 as part of the emissions trading scheme ets the presence of two structural changes on april 2006 following the disclosure of 2005 verified emissions and on october 2006 following the european commission announcement of stricter phase ii allocation allows to isolate distinct fundamentals evolving overtime the results extend previous literature by showing that eua spot prices react not only to energy prices with forecast errors but also to unanticipated temperatures changes during colder events besides the sub period decomposition of the pilot phase gives a better grasp of institutional and market events that drive allowance price changes

case study on initial allocation of shanghai carbon emission trading based on shapley value abstract carbon emission trading is an effective measure to reduce greenhouse gas emissions worldwide china has publicized plans to initiate the demonstration of carbon emission trading in seven regions as of 2013 initial allocation is fundamental but it proposes difficulty in the mechanism design of the carbon emission trading system benchmark grandfathering and the shapley value have been employed to simulate a specific case which consists of the initial allocation of carbon emission allowances of three power plants in shanghai china the results of the shapley value are regarded as a theoretical equitable reference the results of benchmark are similar to those of the shapley value however it is apparent that the allocation regarding grandfathering is inequitable considering other factors we proposed the following at the introduction of experimental stage free allocation pertaining to grandfathering can be adopted meanwhile benchmark should be prepared and adopted at the appropriate time furthermore a portion of the initial allowances can be reserved for auction and this portion for auction will escalate to the extent of 100 upon entering the formal stage in addition the tiered price mechanism and the subsidy policy are also suggested

an empirical model of wage indexation provisions in union contracts this paper describes the responses of index linked wage rates to concurrent price increases for a sample of canadian union contracts and then analyzes theseresponses in terms of a simple model of indexation to the aggregate price level the model highlights the importance of aggregate price movements in conveying information about industry specific prices the empirical analysis confirms that industry specific correlations between input and output prices and the consumer price index are important determinants of the flexibility of wages to prices across indexed contracts

market efficiency in the european carbon markets in this paper we study the relationship between futures and spot prices in the european carbon markets from the cost of carry hypothesis the aim is to investigate the extent of efficiency market the three main european markets bluenext eex and ecx are analyzed during phase ii covering the period from march 13 2009 to january 17 2012 futures contracts are found to be cointegrated with spot prices and interest rates for several maturities in the three co2 markets results are similar when structural breaks are taken into account according to individual and joint tests the cost of carry model is rejected for all maturities and co2 markets implying that neither contract is priced according to the cost of carry model the absence of the cost of carry relationship can be interpreted as an indicator of market inefficiency and may bring arbitrage opportunities in the co2 market

a literature based multi criteria evaluation of the eu ets abstract this article reviews the existing literature on the european union emission trading scheme eu ets focusing on empirical ex post research since the end of the first period 2007 the literature is presented through a multi criteria evaluation concerning environmental effectiveness despite over allocation during the first period abatement is estimated between 2 5 and 5 trade driven carbon leakage was not observed even if long term economic models predict divergent leakage estimates for certain at risk sectors the abatement target was likely to be below an economically efficient level but was reached in a fairly cost effective way even if free allocation gave rise to several distortional effects equity concerns were manifold and constitute a major drawback to the policy finally institutional feasibility can be considered positive in that the eu ets passed the european legislative process unlike the previously proposed eu wide carbon tax

decoupling the eu ets from subsidized renewables and other demand side effects lessons from the impact of the eu ets on co2 emissions in the german electricity sector abstract this paper analyzes the impact of the eu ets on co2 reduction in the german electricity sector we find an ets induced emission abatement which is not exceeding 6 of total emissions with a maximum already in 2010 thereafter the ets has not induced additional reductions this outcome corresponds to the recent debate about sub optimal performance of the eu ets caused by excessive allowances following up on this we develop a unilateral flexible cap to eliminate demand side effects which lead to excessive allowances the unilateral flexible cap is based on emission intensities using the works of newell and pizer 2008 sue wing et al 2009 we prove that an intensity based emission cap is advantageous in the german electricity sector when compared to an absolute cap an ex post analysis shows that the amount of excessive allowances resulting from the economic crisis during the second trading period could have been significantly lowered with a unilateral flexible cap this approach also decouples the eu ets from a simultaneous promotion of renewable energy

how high is the private gain from wage indexation the effects of firm specific shocks on the gain from writing state contingent wage contracts are examine in an extension of the model in gottfries 1992 it is shown that the introduction of firm specific uncertainty increases the gain from indexation to prices only moderately moreover nominal wage contracts should be more prevalent when unemployment benefits are high or unemployment spells are short

transaction costs and tradeable permits abstract tradeable permit systems are at the center of current interest and activity in market based reforms of environmental policy because these systems can offer significant advantages over conventional approaches to pollution control unfortunately claims made for their relative cost effectiveness have often been exaggerated transaction costs which may be significant in these markets reduce trading levels and increase abatement costs in some cases equilibrium permit allocations and hence aggregate control costs are sensitive to initial permit distributions providing an efficiency justification for politicians typical focus on initial allocations

cost of living escalators in major union contracts this paper analyzes the price indexation provisions of a sample of major canadian collective bargaining agreements concluded between 1968 and 1975 under these contracts escalated wage increases comprised about one third of total wage increases and represented a major source of erosion in the relative wages of skilled workers the author argues that indexation provisions are usefully characterized by the marginal elasticity of the contractual wage rate to increases in prices measures of this responsiveness indicate that on average contractual wage rates are only slightly less than unit elastic with respect to price increases there is considerable variation across industries however in the extent to which wages respond to price changes

efficiency productivity and environmental policy a case study of power generation in the eu this study uses the eu public power generating sector as a case study to investigate the environmental efficiency and productivity enhancing performance of the european union s co2 emissions trading scheme eu ets in its first phase using data envelopment analysis methods we measure the environmental efficiency and the productivity growth registered in public power generation across the eu over the 1996 2007 period in the second stage of our analysis we attempt to explain changes in productivity and efficiency over time using econometric techniques our analysis suggests two conclusions carbon pricing led to an increase in environmental efficiency and to a shift outwards of the technological frontier and the overly generous allocation of emission permits had a negative impact on both measures these results are shown to be robust to changes in controls and specifications

wage indexation and output stability revisited since gray 1976 and fischer 1977 the accepted view is that wage indexation stabilizes output when shocks are nominal and destabilizes output when shocks are real this paper examines this proposition s validity when wage indexation is based on lagged inflation it shows that i in a gray fischer economy with plausible parameters indexing wages to lagged inflation destabilizes output regardless of the type of shocks ii the gray fischer result may be restored if nominal shocks have a strong direct effect on prices given wages iii wage indexation to lagged inflation can be neutral for output stability if monetary policy is accommodative

cost of living adjustment clauses in union contracts a summary of results our paper provides an explanation why cost of living adjustment cola provisions and their characteristics vary widely across u s industries we develop models of optimal risk sharing between a firm and union to investigate the determinants of a number of contract characteristics these include the presence and degree of wage indexing the magnitude of deferred noncontingent wage increases contract duration and the trade off between temporary layoffs and wage indexing preliminary empirical tests of some of the implications of the model are described one key finding is that the level of unemployment insurance benefits appears to influence the level of layoffs and the extent of cola coverage simultaneously

rethinking and reshaping the climate policy literature review and proposed guidelines abstract addressing climate change represents a governing the climate commons on a global scale the tragedy of the commons might better be described as the failure of governing the commons hardin s solutions were centralized government and private property which have long been criticized as oversimplified however governing the unprecedented climate commons there is only a global federalism of climate policy the kyoto protocol the kyoto cannot keep atmospheric co2 level below 450 ppm rising 2 c some key evidences of the kyoto failures are identified the kyoto failures do not indicate that the kyoto is a wrong tool of centralized government instead the kyoto failures are derived from the fact that the only centralized government cannot effectively govern the commons which have been proven by the efforts of governing the commons last four decades here we propose a wide diversity of governance systems for climate common to addressing global warming the multi level and multi scale governing system includes but is not limited to i starting at home ii emphasizing the local approach iii efforts of global level focusing these top emitters iv improved information sharing v privatizing the property of climate to avoid free riders vi combination mitigation with adaptive vii improved ecology services to expand carbon sinks we argue that the kyoto failures indicate again that reliance on a single solution may result in more of a problem than a solution in governing the common therefore continuing to wait for another global federalism of climate policy may lead to missing the chance to make significant mitigations and adaptations in time to battling the climate change post 2012 multi level and multi scale approaches could make a difference in collective action for governing the climate commons to meet climate challenge

uncertainty and labor contract durations this paper provides an empirical investigation into the relationship between ex ante u s labor contract durations and uncertainty over the period 1970 to 1995 we construct measures of inflation uncertainty as well as aggregate nominal and real uncertainty the results not only corroborate previous findings of an inverse relationship between contract durations and inflation uncertainty but also document that this relationship extends to both measures of aggregate uncertainty we also explore the robustness of this relationship to various measures of inflation uncertainty that have appeared in the literature

unemployment and business cycles we develop and estimate a general equilibrium search and matching model that accounts for key business cycle properties of macroeconomic aggregates including labor market variables in sharp contrast to leading new keynesian models we do not impose wage inertia instead we derive wage inertia from our specification of how firms and workers negotiate wages our model outperforms a variant of the standard new keynesian calvo sticky wage model according to our estimated model there is a critical interaction between the degree of price stickiness monetary policy and the duration of an increase in unemployment benefits

indexation and incomes policy a study of wage adjustment in unionized manufacturing data from nearly 200 collective bargaining units are used to study the frequency of wage change from 1957 to 1978 it is shown that incomes policies during the kennedy johnson and nixon administrations encouraged changes in the length of time between wage adjustments inflation often thought to be responsible for fluctuations in the coverage of indexing provisions is found to play virtually no role the conclusion is that government intervention in the wageprice process aroused fears that the government will intervene again in the future in the presence of this uncertainty the wage adjustment provisions of collective bargaining contracts were changed

the eu 20 20 2020 targets an overview of the emf22 assessment three computable general equilibrium models are used to estimate the economic implications of a stylized version of eu climate policy if implemented at the lowest possible cost the 20 emissions reduction would lead to a welfare loss of 0 5 2 0 by 2020 second best policies increase costs a policy with two carbon prices one for the ets one for the non ets could increase costs by up to 50 a policy with 28 carbon prices one for the ets one each for each member state could increase costs by another 40 the renewables standard could raise the costs of emissions reduction by 90 overall the inefficiencies in policy lead to a cost that is 100 125 too high the models differ greatly in the detail of their results the ets non ets split may have a negligible impact on welfare while the renewables standard may even improve welfare the models agree however that the distortions introduced by total eu package imply a substantial welfare loss over and above the costs needed to meet the climate target the marginal total and excess costs reported here are notably higher than those in the impact assessment of the european commission

free euas and fuel switching abstract this paper focuses on the impact of euas on the optimal policy of a competitive electricity producer the effect of grandfathering is consistently shown to introduce significant distortions to the system it is theoretically shown that there is a threshold value of carbon price so that for prices above this the eua becomes an incentive for reduced production rather than a penalty for inefficient producers these theoretical results are supported by the data of one producer from italy and one from germany furthermore the empirical evidence concludes that the high level of free allowances may generate a shift in production from less to more polluting technologies

hoarding in general equilibrium hoarding of money supply increases can explain long and variable lags from money supply changes to changes in aggregate expenditure and average prices the archibald lipsey model relies upon differences in income elasticities of demand for real money balances to explain aggregate hoarding of money supply changes consequently there is no presumption that average prices and aggregate expenditure will lag behind money supply increases this paper presents a general equilibrium model where money supply increases are partially hoarded in the short run lagged adjustment results from intertemporal substitution rather than income effects and the adjustment of aggregate expenditure and average prices is monotonic copyright 1990 by the london school of economics and political science

effects of unilateral climate policy on terms of trade capital accumulation and welfare in a world economy we present a two good two country overlapping generations model where emissions arise from production and each country has a domestic emission permit system when one country unilaterally reduces her cap on emissions her output available for domestic and foreign consumption diminishes more than in the other country with unchanged consumption expenditure shares for both goods the domestic terms of trade improve while capital stocks decline in the reducing and less strongly in the non reducing country improving terms of trade in the reducing country and falling capital stocks lead in total to welfare losses in both countries however if the country which unilaterally reduces her emission permits is a net creditor to the world economy and the golden rule applies her own welfare loss remains below that of the non reducing country

strikes and wages a test of an asymmetric information model this paper describes a simple model of labor disputes based on the hypothesis that unions use strikes to infer the profitability of the firm the model posits the existence of a negatively sloped resistance curve between wages and strike duration in addition it offer a series of predictions relating wage and strike outcomes to changes in the expected profitability of the firm and changes in the alternative opportunities of striking workers these implications are tested using data on wage outcomes strike probabilities and strike durations for a large sample of collective bargaining agreements

nominal wage rigidity in contract data a parametric approach using wage agreements reached in the canadian unionized sector during 1976 99 a period of high as well as exceptionally low inflation we consider how histograms of wage adjustment changed as inflation reached the low levels of the 1990s the histograms and parametric tests suggest that wage adjustment is characterized by downward nominal rigidity and significant spikes at zero there is some evidence of modest menu cost effects we examine whether the rigidity features of wage adjustment are sensitive to indexation provisions and investigate whether the distinction between short and long contracts is useful