armington models and terms of trade effects some econometric evidence for north america elasticities of substitution among u s imports from mexico canada the rest of the world and competing domestic production are estimated for twenty two mining and manufacturing sectors based on quarterly data for 1980 88 these elasticities will provide a benchmark for computable general equilibrium models of north american trade liberalization the authors also find that estimated armington elasticities are low and therefore researchers may want to reconsider the device of using high values of armington elasticities in multicountry computable general equilibrium models to avoid large terms of trade losses associated with preferential trade liberalization

environmental policy instruments in an international duopoly with feedback investment strategies abstract this paper analyses the effects of the environmental policy instruments taxes and standards on the investment behaviour of firms in the context of an international duopoly two production factors are considered the capital stock and a polluting input the government of each country values high profits for its firm and a good environmental quality through standards on the polluting input firms get commitment on output which is not the case under taxes standards thus seem a better environmental policy instrument because for the same use of the polluting input taxes lead the duopolists to higher investment with lower profits this result was derived in a two stage game model it was confirmed in a differential game model with open loop strategies the paper shows that in a differential game model with feedback strategies an effect occurs that counteracts the first effect the cause of this is that taxes induce substitution between capital and the polluting input the conclusion is that under taxes firms invest more due to the absence of commitment but invest less due to substitution between the inputs the net effect depends on the values of the parameters taxes are better than standards for low rates of depreciation and discount for low investment costs and for high productivity of capital

on the international dimension of fiscal policy this paper analyses the international dimension of fiscal policy using a small open economy framework in which the government finances its spending by levying distortionary taxation and issuing non state contingent debt the main finding of the paper is that once the open economy aspect of the policy problem is considered it is not optimal to smooth taxes following idiosyncratic shocks even when prices are flexible and inflation can costlessly act as a shock absorber to restore fiscal equilibrium the presence of a terms of trade externality lead to movements in the tax rate also in contrast with the closed economy the introduction of sticky prices can reduce the optimal volatility of taxes

estimates of energy subsidies in china and impact of energy subsidy reform abstract for a transitional economy such as china some energy subsidies are reasonable and sometimes even necessary for achieving social goals however with rising energy prices and environmental concerns we see conflicts emerging between energy subsidies energy demand supply fundamentals and climate change considerations energy subsidies have important implications for sustainable development through their effects on energy use efficiency and the choice of fuel source this paper applies the price gap approach to estimate china s energy subsidies results indicate that china s energy subsidies amounted to cny 356 73 billion in 2007 equivalent to 1 43 of gdp subsidies for oil products consumption are the largest followed by subsidies for the electricity and coal sectors furthermore a cge model is used to analyze the economic impacts of energy subsidy reforms our findings show that removing energy subsidies will result in a significant fall in energy demand and emissions but will have negative impacts on macroeconomic variables we conclude that offsetting policies could be adopted such that certain shares of these subsidies are reallocated to support other sustainable development measures which could lead to reducing energy intensity and favoring the environment

the cyclical behavior of the price cost markup countercyclical markups constitute the key transmission mechanism for monetary and other demand shocks in new keynesian models this paper tests the foundation of those models by studying the cyclical properties of the markup of price over marginal cost the first part of the paper studies markups in the aggregate economy and the manufacturing sector we use bils s 1987 insights for converting average cost to marginal cost but do so with richer data we find that all measures of markups are either procyclical or acyclical moreover we show that monetary shocks lead markups to fall with output the second part of the paper merges input output information on shipments to the government with detailed industry data to study the effect of demand changes on industry level markups industry level markups are found to be acyclical in response to demand changes

monetary union a welfare based approach abstract this article attempts to shed light on the consequences of the transition to emu for individual welfare following specific shocks to this end we develop a two country intertemporal general equilibrium model that extends the obstfeld and rogoff journal of political economy 103 3 1995 624 specification to nominal rigidities through price adjustment costs and pricing to market behavior we show that when facing a positive asymmetric permanent shock to either technology or government expenditures occurring in one country implementing a monetary union is beneficial to the households living in this economy conversely it is detrimental to foreigners further a sensitivity analysis shows that if the gains losses to implementing monetary union are qualitatively robust when facing changes in the degree of nominal rigidities and the elasticity of substitution between foreign and domestic goods they are quite sensitive to the degree of pricing to market in the economy

quasi fixed inputs in u s and japanese manufacturing a generalized leontief restricted cost function approach in this paper a generalized leontief variable cost function is develope d which permits analytical derivation of steady state levels of quasi fixed inputs and capacity output and does not require specification of a numeraire input this framework is then used to evaluate the fa ctor demand patterns of japanese and u s manufacturing based on bot h one quasi fixed capital input and two quasi fixed capital and la bor input specifications and both static and dynamic optimization t he findings provide evidence of considerable flexibility of demand re sponses in japan which may have contributed to japan s relatively st rong economic performance in the volatile 1970s copyright 1988 by mit press

monetary and exchange rate arrangements for nafta abstract this paper considers the extent to which the north american free trade area nafta meets the criteria for a common currency area nafta is compared with the ec a regional grouping for which initial plans for a monetary union are already in place most of the anticipated benefits from a monetary union in the ec apply with equal force to nafta however because the underlying disturbances are more diverse across members of nafta the costs of abandoning the exchange rate instrument are likely to be higher this is particularly true when nafta is compared to the ec s continental core

scale effects time varying markups and the cyclical behaviour of primal and dual productivity this paper presents estimates of the degree of returns to scale using nonparametric measures of primal and dual productivity for 2 digit us manufacturing industries as part of the analysis the cyclical behaviour of primal and dual productivity measures are considered time varying markups are allowed for and the small sample properties of the instrumental variables estimator used to derive the estimates from the primal and dual relations examined both the primal and dual estimates indicate the existence of increasing returns to scale for the durable goods industries the simulation results indicate there is a slight tendency for the dual equation estimates to overestimate the degree of returns to scale however small sample bias appears to be most severe for the non durable goods industries

the cyclical nature of markups in canadian manufacturing a production theory approach in this paper the effects of cost and demand characteristics on the magnitude and cyclical behaviour of markups in canadian manufacturing are measured within a production theory framework price to marginal cost ratios for various manufacturing industries are computed and the impact art their secular and cyclical trends from changes in capacity utilization scale economies variable input prices import competition unemployment and other exogenous market and technological determinants are explored using adjusted markup indexes and elasticities the measured price margins seem weakly procyclical further evaluation of the determinants of these cycles suggests that the procyclical nature of markups is primarily related to exogenous factors affecting costs such as energy price shocks and that cost characteristics underlying scale economies provide a countercyclical influence that counteracts the profitability arising from markups

the relation between price and marginal cost in u s industry an examination of data on output and labor input reveals that some u s industries have marginal cost well below price the conclusion rests on the finding that cyclical variations in labor input are small compared with variations in output in booms firms produce substantially more output and sell it for a price that exceeds the costs of the added inputs the paper documents the disparity between price and marginal cost where marginal cost is estimated from annual variations in cost it considers a variety of explanations of the findings that are consistent with competition but none is found to be completely plausible

economic fluctuations market power and returns to scale evidence from firm level data recent research on aggregate fluctuations coupled with ongoing work in industrial organization has renewed interest in the existence magnitude and cyclical pattern of market power and the extent of increasing returns to scale by exploiting restrictions from dynamic theory and information from financial markets we present a framework for generating quantitative evidence on market power and returns to scale tailoring the econometric model to firm level panel data we calculate the percentage differential between price and marginal cost the lerner index in terms of the parameters from the econometric system results for firms in eleven industries indicate that there is a great deal of heterogeneity in the extent of market power industries with significantly positive lerner indices tend to have substantial increasing returns in the production technology we find that there is only a modest relation between our estimated lerner indices and traditional measures of market power and that when market power varies temporally it is usually procyclical thus variations in the markup of price over marginal cost may help dampen aggregate economic fluctuations

endogenous markups intensity of competition and persistence of business cycles in order to study the propagation mechanism of business cycles in particular to investigate how the intensity of competition affects market structure and output persistence over business cycles this paper presents a real business cycle model with imperfect competition and increasing returns to scale this analysis considers the markups of price over cost to be endogenous with endogenous markups two standard forms of oligopolistic competition bertrand and cournot are considered results show that 1 the propagation mechanism in the sense of output persistence is greater under cournot 2 the propagation mechanism is unequivocally greater with imperfect competition regardless of whether markups are endogenous or not and 3 under imperfect competition the propagation mechanism is greater with endogenous markups than with exogenous markups overall these results suggest that more intense competition produces lower persistence in output growth and thus a weaker propagation mechanism in a calibration exercise these differences were also found to be quantitatively important

the cyclical behavior of marginal cost and price the author examines the cyclical behavior of price marginal cost margins for u s manufac turing after 1956 short run marginal cost is markedly procyclical this is primarily due to procyclical overtime payments incurred beca use employment is not perfectly flexible in most industries output price fails to respond to the cyclical movement in marginal cost so price marginal cost margins are markedly countercyclical the res ults contradict business cycle theories that explain low production i n a recession by a high real cost of producing they support theories that explain low production in a recession by the inability of firms to sell their output copyright 1987 by american economic association

dynamic factor demands and the effects of energy price shocks a dynamic model is used to understand how sharp changes in energy prices affect investment behavior employment and energy use the authors discuss the theory behind their model selection model specifications estimation methods and data list parameter estimates and elasticities for the selected model and describe the simulations they conclude that 1 the data strongly reject the hypothesis of constant returns to scale within their specification of aggregate production 2 the data indicate adjustment costs on labor are small and 3 their results help reconcile some of the conflicting estimates of energy demand elasticities appearing in recent literature 23 references 3 figures 3 tables

joint pricing and inventory policies for make to stock products with deterministic price sensitive demand abstract in this paper we focus on a firm selling a single make to stock product to price sensitive end customers we develop an integrated operations marketing model that can help determine the relevant profit maximizing decision variable values for two pricing policies that the firm might follow price as a decision variable which is advocated by academicians and mark up pricing used by most practitioners we first consider an eoq based model with price and order quantity as independent decision variables we then develop an analogous model where price is a mark up over operating costs per unit and order quantity becomes the sole decision variable we are able to ascertain the optimal decision variable values for each model for log linear and linear demand functions we prove that for such profit maximizing models the optimal batch size is not necessarily monotone increasing in set up cost interestingly our numerical analytical evidence suggests that from a profit perspective it is better for managers to be aggressive on price rather than reducing price too much especially for highly price sensitive and non linear demand moreover we establish that in general the profit penalty for not including inventory costs in determining the optimal batch size or ignoring the batch size optimization issue in a mark up price model is not significant only when the set up cost is quite high and or the firm faces non linear demand from highly price sensitive end consumers does it become crucial for managers to determine the exact optimal batch size and base the mark up price on the entire unit operating cost not only the unit variable production cost

monetary rules for small open emerging economies abstract this paper develops a variant of the imf s global economic model suitable to analyze macroeconomic dynamics in open economies and uses it to assess the effectiveness of taylor rules and inflation forecast based ifb rules in stabilizing variability in output and inflation our findings suggest that a simple ifb rule that does not rely upon any direct estimates of the equilibrium real interest rate and places a relatively high weight on the inflation forecast may perform better in small open economies than conventional taylor rules

testing viability of cross subsidy using time variant price elasticities of industrial demand for electricity indian experience abstract indian electric tariffs are characterized by very high rates for industrial and commercial classes to permit subsidized electric consumption by residential and agricultural customers we investigate the viability of this policy using monthly data for 1997 2003 on electric consumption by a few large industrial customers under the aegis of a small distribution company in the state of uttar pradesh for a given price cost ratio it can be shown that if the cross subsidizing class electricity demand is sufficiently elastic increasing the class rates fail to recover incremental cross subsidy necessary to support additional revenues for subsidized classes this suboptimality is tested by individually estimating time variant price elasticities of demand for these industrial customers using box cox and linear regressions we find that at least for some of these customers cross subsidy was suboptimal prior to as late as october 2001 when rates were changed following reforms

markups in u s and japanese manufacturing a short run econometric analysis in this article a production theory based model of firms markup behavior is constructed the theoretical structure is based on variants of generalized leontief cost and expenditure functions this framework yields a specification of behavior from which the impacts of both supply and demand shocks on firms markup behavior can be assessed through elasticities adjustment costs on both labor and capital and economies of scale are incorporated estimation is carried out using manufacturing data for the united states and japan from 1960 through 1981 the empirical results suggest that markups for manufacturing firms in both the united states and japan have increased over time but have somewhat different cyclical characteristics stemming primarily from differential investment behavior in addition capacity utilization and especially returns to scale tend to counteract the short run profit potential from markup behavior so that markups measured assuming constant returns are typically biased downward finally

unraveling the productivity growth slowdown in the u s canada and japan the effects of subequilibrium scale economies and markup measures of productivity growth typically include in the productivity residual the impacts of fixity of factors subequilibrium costs of adjustment returns to scale and markups this paper proposes a general framework for adjusting the residual to accommodate these impacts by first correcting and then decomposing traditional measures use of the framework is illustrated empirically for the united states japanese and canadian manufacturing sectors using an econometric model that allows explicit incorporation and measurement of these factors the adjusted measures show that a significant amount of cyclical and secular change in measured productivity growth can be attributed to production characteristics other than technical change particularly scale effects copyright 1992 by mit press