public capital and long run costs in u k manufacturing a model of u k manufacturing production that incorporates the inputs of public as well as private capital is specified and estimated the model is then used to measure the contribution of public capital to productivity growth over the period 1966 to 1990 it is found that before 1980 the public and private capital contributions were of comparable magnitude after 1980 the contribution of public capital declined significantly copyright 1993 by royal economic society

refining for export and the convergence of petroleum product prices abstract the petroleum refining industry has changed over the past decades from one in which capacity primarily served local and regional markets to one in which trade in refined petroleum products has become more widespread we investigate the hypothesis of increasing globalization by examining the convergence of prices for refined products across different markets using data on refined products from market centers in the us and europe we test for convergence of prices using standard time series techniques the data plainly show that markets for refined petroleum products have become more interrelated as europe exported its gasoline surplus and global demand for petroleum products approached refining capacity econometric evidence supports the hypothesis that the us and european markets for oil and refined products are integrated we find evidence that a structural break during the financial crisis of 2008 changed the long run equilibrium price relationships and the short run price dynamics refined product markets are likely to experience continued globalization given trends in the united states and europe and because of key export oriented refining capacity investments made to take advantage of access to specific crude oil sources

adaptive estimation of cointegrated models simulation evidence and an application to the forward exchange market the paper reports simulation and empirical evidence on the finite sample performance of adaptive estimators in cointegrated systems adaptive estimators are asymptotically efficient even when the shape of the likelihood function is unknown we consider two representations of cointegrated systems triangular cointegrating regressions and error correction models the motivation for and advantages of adaptive estimators in such systems are discussed and their construction is described we report results from the estimation of a forward exchange market unbiasedness regression using the adaptive and competing estimators and provide related monte carlo simulation evidence on the performance of the estimators copyright 1999 john wiley sons ltd

tests for parameter instability in regressions with i 1 processes this article derives the large sample distributions of lagrange multiplier lm tests for parameter instability against several alternatives of interest in the context of cointegrated regression models the fully modified estimator of phillips and hansen is extended to cover general models with stochastic and deterministic trends the test statistics considered include the supf test of quandt as well as the lm tests of nyblom and of nabeya and tanaka it is found that the asymptotic distributions depend on the nature of the regressor processes that is if the regressors are stochastic or deterministic trends the distributions are noticeably different from the distributions when the data are weakly dependent it is also found that the lack of cointegration is a special case of the alternative hypothesis considered an unstable intercept so the tests proposed here may also be viewed as a test of the null of cointegration against the alternative of no cointegration the tests are applied to three data se

implications of consumer heterogeneity in time series estimates of us money demand the money demand function has traditionally been estimated with income and interest rates typically employing quite lengthy time series controversy however surrounds the importance of heterogeneous agents in monetary economics and throughout macroeconomics more generally in particular if proportions of agents with different traits and hence different money demands are changing over time ignoring those changes may bias estimated income and interest elasticities this concern as well as that of appropriate functional form is explored here controlling for consumer heterogeneity has surprising effects on the estimated elasticities of traditional variables

estimating shocks and impulse response functions this paper examines the issue of how to identify the shocks in a cointegrated var when the following assumptions are made the variables can be classified as endogenous or exogenous there are as many cointegrating relations as endogenous variables the cointegrating vectors are identified and they contain at least one exogenous variable it is shown that with these assumptions it is possible to identify the shocks without the use of further restrictions on the covariance matrix of the disturbances or the short run dynamics if the long run parameters are known the whole model can be estimated by ols the analysis is extended to allow the var to have both stationary and non stationary variables an illustration of the method is provided using the traditional benchmark var model involving us data on output prices interest rates and money a liquidity effect is not found using this var methodology

stock watson dynamic ols dols and error correction modelling approaches to estimating long and short run elasticities in a demand function new evidence and methodological implications from an application to the demand for coal in mainland china in this paper robust elasticity estimates of coal demand for china are derived using annual data 1953 92 in so doing we illustrate the use of a powerful yet practically convenient and recently developed modelling procedure devised by stock and watson known as dynamic ols dols who provide evidence based on monte carlo simulations of this estimator being superior in small samples compared to a number of alternative estimators as well as being able not only to accommodate higher orders of integration but also to account for possible simultaneity within regressors of a potential demand system furthermore cointegration and error correction methods are employed to derive short run price and income elasticities estimated results are quite robust not only in terms of statistical prowess but also in terms of economic intuition and indicate that over the long run both price and income elasticities are close to unity while short run price and income elasticities are less in absolute value than their long run counterparts there seems to be some divergence in short run parameters from a subsample analysis overall results seem to imply that for china coal consumption should remain relatively constant as future modernization strategies for economic development are pursued in addition the study has clear methodological implications for estimating the long and short run elasticities in a demand function in general and in a wide variety of fields in future applied research

the smoot hawley tariff a quantitative assessment in the two years after the imposition of the smoot hawley tariff in june 1930 the volume of u s imports fell over 40 to what extent can this collapse of trade be attributed to the tariff itself versus other factors such as declining income or foreign retaliation partial and general equilibrium assessments indicate that the smoot hawley tariff itself reduced imports by 4 8 ceteris paribus although the combination of specific duties and deflation further raised the effective tariff and reduced imports an additional 8 10 a counterfactual simulation suggests that nearly a quarter of the observed 40 decline in imports can be attributed to the rise in the effective tariff i e smoot hawley plus deflation

a new approach to decomposition of economic time series into permanent and transitory components with particular attention to measurement of the business cycle abstract this paper introduces a general procedure for decomposition of non stationary time series into a permanent and transitory component allowing both components to be stochastic the permanent component is shown to be a random walk with drift and the transitory or cyclical component is a stationary process with mean zero the decomposition methodology which depends only on past data and therefore is computable in real time is applied to the problem of measuring and dating business cycles in the portwar u s economy we find that measured expansions and contractions are of roughly equivalent duration and that our dating of cyclical episodes tends to lead the traditional nber dating and to a lesser extent the growth cycle chronology of zarnowitz and boschan 1977

modeling the demand for narrow money in the united kingdom and the united states abstract despite the importance of well specified empirical money demand functions for inference forecasting and policy problems in modeling have arisen concerning the economic theories of money demand the data institutional frameworks financial innovation and econometric implementation by developing constant data coherent m 1 demand equations for the u k and the u s we investigate these issues and explain such puzzles as missing money the great velocity decline and the recent explosion in m 1 the endogeneity of money the lucas critique and the non invertibility of our m 1 models are also discussed

an asymmetric error correction model of uk consumer spending this paper augments the granger and lee journal of applied econometrics 4 1989 non symmetric error equilibrium correction model to assess the possibility that in the aggregate consumers respond differently to different types of disequilibrium error this idea is illustrated using an engle granger implementation of the davidson hendry srba and yeo dhsy economic journal 80 1978 model the disequilibrium error is endogenously determined by the long run empirical model and a binary dummy variable captures two alternative states above and below equilibrium spending interaction of the dummy variable with key variables in a short run dynamic model of uk consumer spending augments the dynamics of the dhsy model income elasticities inflation elasticities and speeds of adjustment are all seen to change significantly depending on whether the disequilibrium error is positive or negative and is suggestive of asymmetric behaviour on the part of consumers moreover the asymmetrically augmented mode

have north south growth linkages changed abstract this paper provides econometric evidence suggesting that the traditional tradebased business cycle linkages between the north and the south have changed many countries in the south particularly in asia appear to have become more resilient to cyclical movements in the north and play a more significant role in sustaining global activity a number of factors may have contributed to these changes improved domestic policies and more open trade and exchange regimes closer financial linkages with the north and a substantial increase in capital flows a marked rise in intraregional trade and greater diversification of the exports of the south

productivity differentials the relative price of non tradables and real exchange rates abstract this paper reconciles the apparent contradiction between recent panel unit root tests of real exchange rates and the productivity differential model proposing an alternative view that explains the coexistence of such findings real exchange rates and the relative price of non tradables reflect the gradual adjustment of mean reverting and endogenously competing factors supply and demand shocks as well as traded goods arbitrage granger causality and variance decomposition results indicate substantial simultaneity and feedback effects between real exchange rates the relative price of non tradables and productivity differentials

japan s financial deregulation and linkage of the gensaki and euroyen deposit markets summary this paper examines whether japan s financial deregulation weakened the linkage between the euroyen and gensaki markets it defines and analyses the linkage of the two markets in terms of the persistence and predictability of yield spreads as well as cross market causality by using johansen tests and an error correction model this paper shows first cross market causality before and after deregulation and second one common trend in interest rates substantial gensaki euroyen yield spreads and a slower response of the one month gensaki euroyen yield spread to a shock after deregulation

net foreign assets and international adjustment the united states japan and germany abstract this paper examines external adjustment in the usa japan and germany from the perspective of net foreign asset positions it asks two questions what are in the long run the determinants of net foreign asset equilibrium what are in the short run some of the adjustment mechanisms sustaining that equilibrium an analysis of post war data produces two insights first using a cointegration approach the existence of long run net foreign asset equilibrium can be identified it is a function of demographic variables and public debt second deviations from long run equilibrium give rise to feedback through different components of domestic absorption in the three countries

measuring market power for some industrial sectors in austria this paper applies an oligopoly model which parameterizes the degree of market power for two industrial sectors glass industry non electrical machinery in austria in contrast all other paper in the new empirical indsutrial organization literature we account for the non stationarity characteristics of the data series a dynamic specification procedure which assumes structural long run equilibrium relationships is therefore applied since a simultaneous system with non linear cross equation restrictions is implied by the economic model a full information maximum likelihood method is used the data reveal a higher degree of market power for the glass industry than for non electrical machinery this hierarchy is in line with the position of these industries for concentration rates and herfindahl indices

terms of trade and real exchange rates the canadian evidence abstract this paper presents empirical evidence linking the canada us real exchange rate with the terms of trade using recently developed econometric methods for nondashstationary data we find that the real exchange rate is cointegrated with terms of trade variables and that causality runs from the terms of trade to the exchange rate we then construct a simple exchange rate equation that satisfies several specification tests and performs better than a random walk in post sample forecasting experiments the results suggest that much of the variation in the real exchange rate is attributable to movements in the terms of trade and that the influence of monetary factors is secondary

regression direction and weak exogeneity abstract the absence of testing for weak exogeneity in money demand has often led to stark conditioning claims regarding the validity of price equations this paper uses the johansen procedure to explore the conditioning properties of money demand systems for nonborrowed reserves m1 and m2 our results show that irrespective of the specification of the cointegrating relation a feedback mechanism enters the equation for money the opposite however is not true for the price equations the results also cast a warning for single equation models of money demand in that weak exogeneity is sensitive to how the system is defined

an optimal vendor buyer cooperative policy under generalized lead time distribution with penalty cost for delivery lateness abstract this paper presents an integrated inventory model for a single vendor and single buyer where lead time is a stochastic variable with general distribution function the vendor delivers goods at a fixed lot size to the buyer who has a constant demand rate storage is permitted on both parties but a penalty cost is assessed when the vendor delivers the shipment late beyond a threshold time the problem is formulated as a nonlinear cost model which needs to be minimized to arrive at an optimal policy for reorder point order quantity and number of shipments from the vendor to buyer to cooperatively operate the joint contract the solution procedure involves both closed form solution and iterative search procedure for this multi dimensional problem numerical examples are presented for uniform exponential and normally distributed lead time s to demonstrate the solution methodology as well as a precursor test for special cases the model presented here are applicable for numerous two stage supply chain systems including retail businesses assembly and production houses where two parties of the supply chain are tied to their common goal of achieving minimum total cost of inventory operation

the linear quadratic adjustment cost model and the demand for labour in this paper we demonstrate a new way of testing the linear quadratic adjustment cost lqac model under rational expectations we illustrate how the parameter restrictions arising from this model can be formally specified and we use these restrictions to extent the technique of campbell and shiller 1987 to a wider class of models based on present value relations potentially the demand for labour is an area in which the lqac model can find applicability in practice and subsequently we analyse sectoral labour demand in danish manufacturing we find however that for our data set the quadratic adjustment cost model under rational expectations can be rejected

is health care really a luxury much of the work which has led to a widely held view that the income elasticity of health care spending exceeds one has been based on international cross section data or on pooled cross sections and time series in this paper we re examine this view in the context of long run equilibrium relationships between non stationary time series possibly including autonomous trends our results cast doubt upon the usefulness of pooling and upon the notion of an elasticity above one

declining discount rates and the fisher effect inflated past discounted future uncertain and persistent real interest rates underpin one argument for using a declining term structure of social discount rates in the expected net present value enpv framework despite being controversial this approach has influenced both the inter agency working group on cost benefit analysis and the uk government s guidelines on discounting we first clarify the theoretical basis of the enpv approach then rather than following previous work which used a single series of u s treasury bond returns we treat nominal interest rates and inflation as co integrated series and estimate the empirical term structure of discount rates via the fisher effect this nests previous empirical models and is more flexible it also addresses an irregularity in previous work which used data on nominal interest rates until 1950 and real interest rates thereafter as we show the real and nominal data have very different time series properties this paper therefore provides a robustness check on previous discounting advice and updated methodological guidance at a time when governments around the world are reviewing their guidelines on social discounting the policy implications are discussed in the context of the social cost of carbon nuclear decommissioning and public health

the exchange rate and purchasing power parity extending the theory and tests abstract this paper analyzes the exchange rate in a no arbitrage or real business cycle equilibrium model and provides empirical evidence for this model vis a vis ppp our contribution is to show based on a generalization of the equilibrium model of exchange rates that i the test equation linking the exchange rate to fundamentals should allow for international heterogeneity in time preferences and risk attitudes as well as noise that is the model should not be tested as an exact relation ii empirical work should use levels of variables rather than first differences and iii tests on the existence of long run relations should be complemented by test on the signs of the coefficients our empirical work shows that as a long run relation the generalized model outperforms ppp moreover under the generalized model quarterly deviations from the estimated long term relation have a half life of only four to five quarters

partial adjustment in the demand for money theory and empirics central to the notion of money as the medium of exchange is the concept that all transactions are conducted using money balances this notion expounded most explicitly by robert clower 1967 1970 has led to the development over the past decade of interesting models of the transactions and precautionary demand for money these have examined optimal behavior of the economic agent in steady state although there has been much gained by examining money balance behavior in this way money demand models so far have ignored the behavior of money during periods of disequilibrium an adequate understanding of total money balances is possible only by incorporating both equilibrium and disequilibrium behavior into an overall view in this regard michael darby 1972 is exceptional in explicitly treating disequilibrium money demand behavior darby s paper is mainly empirical but it contains an interesting intuitive discussion of money s role as a shock absorber during periods of disequilibrium in the present study we address both the theoretical foundation and empirical importance of the shock absorber effect we construct a model of optimal behavior by the economic agent showing the necessary conditions for the existence of partial adjustment and indicating how the intensity of adjustment behaves over time and in response to changes in economic variables this appears to be the first such attempt in the money demand literature although there is related work in the investment literature on the flexible accelerator we test the model on u s quarterly data to estimate the existence and magnitude of partial adjustment we find a significant but small effect for both ml and m2 furthermore the effect dies out within one and two quarters for the respective definitions of money the results thus support but disagree in magnitude with those of darby 1972 who found a larger and longer lasting partial adjustment effect our finding of so short an effect is especially important in light of robert barro s 1978 paper which relies on darby s long lasting effect to explain price behavior

savings in chile what went right abstract in the last 10 years chile s overall economic performance has been remarkable in many respects including a significant and sustained increase in domestic savings to figures around 26 of gdp this paper empirically assesses the reasons behind such notable behavior of savings by applying co integration models to check for long run relationships and error correction models to verify short run adjustments the emphasis is on annual private savings data span from 1960 to 1995 which as it turns out depend more than proportionally on an adjusted measure of gdp and less than proportionally on foreign savings and public savings private savings are also positively affected by economic growth and a dummy reflecting the effect of pension funds most of the adjustment between short run and long run is completed in less than 3 years where the variable representing income bears the bulk of such adjustment in comparing two episodes of good economic performance in the last 20 years 1976 1981 and 1986 till present it is found that three basic differences arise concerning private savings sustainability of growth different access to foreign savings during the recovery from recession and different scenarios with respect to the development of long run capital markets in particular a relevant role played the move to a fully funded social security system in the early 1980s

ricardian equivalence and the public and private saving nexus in india abstractthis study tests the ricardian equivalence theorem ret and examines the responsiveness of private saving to public saving in india most estimators do not provide support for the empirical validity of ret and long run cointegration between public and private saving the increases in household saving hhs seem to have been engendered by the provision of saving incentives institution of saving schemes self driven motivation to save and the precautionary accumulations induced by uncovered uncertainties in incomes rather than by ricardian behaviour of households the self imposed aversion to debt and debt bequest borrowing and liquidity constraints and the intertemporal smoothing of consumption have been the added catalysts that contributed to the increases in hhs the households with binding borrowing constraints inadequate or no insurance and uncovered uncertainties in incomes seem to have been saving more to pay for higher inflation tax the fiscal consolidation and generation of public s

services sector and economic growth in india this study examines the long run equilibrium and short run dynamic relationship between services sector and gross domestic product gdp and between services and nonservices sectors in india the model is estimated using the optimal single equation and the maximum likelihood system estimators all the estimators consistently suggest the cointegrating relationship between services sector and gdp as well as between services and nonservices sectors the estimates of long run elasticity parameters are statistically significant and dimensionally consistent across the estimators the conventional cumulative sum cusum and the new cusum and moving sum mosum tests suggest the stability of the equilibrium residuals and reinforce the cointegrating relationship between the model series the error correction model provides some support for unidirectional granger causality from services sector to gdp the impulse response and variance decomposition analyses instead suggest the bidirectional causality between servic

import demand in heterogeneous panel setting to study the elasticities of import demand function a heterogeneous panel is built with data of 40 countries and using panel unit root tests im et al 1997 and panel cointegration tests pedroni 2004 the model is tested with two previously used activity variables gdp and gdp minus export for a performance comparison to estimate elasticities use is made of two modified panel versions of fmols and dols developed by pedroni 1996 2000 2001 the tests prove that gdp outperforms gdp minus exports as an activity variable in the cointegration context fmols and dols give close results when individual estimates are done when between dimension estimators are used conflicting results are obtained then the sample is split into developed and developing countries and it is shown that income elasticity in developing countries are not different than unity on average and are higher than in developed countries contradicting previous literature results

estimating long run economic equilibria with stochastic trends an asymptotic theory is provided to analyze a menu of currently existing estimators of cointegrated systems we study in detail the single equation ecm seecm approach of hendry our theoretical results lead to prescriptions for empirical work such as specifying seecm s nonlinearly and including lagged equilibrium relationships rather than lagged differences of the dependent variable as covariates simulations support these prescriptions and point to problems of overfitting not encountered in the semiparametric approach of phillips and hansen 1990