modelling output growth a new approach abstract the paper proposes a new approach to modelling output growth and empirically compares the relative efficiency in terms of average mse of forecasts of alternative estimation and modelling methods applied to two well known multi equation macroeconomic models fitted to australian data for the period 1962 to 1987 the gain in relative efficiency from the new approach is found to be up to 129 percent over the ols or ml procedures

robust tests for unit roots in the foreign exchange market abstract empirical studies that have tested for unit roots in foreign exchange rate data have assumed independent and identically distributed errors in order to apply dickey fuller test procedures this assumption ignores the temporal dependence of the error sequence present in many simple efficient market tests as discussed in hansen and hodrick 1980 as well as krasker 1980 in this paper we apply unit root test statistics that allow for heterogeneously distributed and mildly dependent error processes and thus provide superior tests of the unit root hypothesis in the case of foreign exchange rates

natural resources curse or blessing are natural resources a curse or a blessing the empirical evidence suggests that either outcome is possible this paper surveys a variety of hypotheses and supporting evidence for why some countries benefit and others lose from the presence of natural resources these include that a resource bonanza induces appreciation of the real exchange rate deindustrialization and bad growth prospects and that these adverse effects are more severe in volatile countries with bad institutions and lack of rule of law corruption presidential democracies and underdeveloped financial systems another hypothesis is that a resource boom reinforces rent grabbing and civil conflict especially if institutions are bad induces corruption especially in nondemocratic countries and keeps in place bad policies finally resource rich developing economies seem unable to successfully convert their depleting exhaustible resources into other productive assets the survey also offers some welfare based fiscal rules for harnessing resource windfalls in developed and developing economies

opec and the international oil market can a cartel fuel the engine of economic development abstract the opec cartel was formed to promote two economic goals one microeconomic low oil market volatility the other macroeconomic promotes economic development of its members these goals create a tension since the cartel s single tool is output quotas using this dual micro macro perspective we analyze oil exporting countries behavior we find that the effects of the cartel s choices will be reflected in oil market stability long term macroeconomic development and international oil market structure if an oil producing country cares about both oil industry profits and macroeconomic stability the goal of output stability may be inconsistent with cartel membership

energy consumption at business cycle horizons the case of the united states in this paper we propose a simple extension to a keynesian type macro model by augmenting it with energy consumption we show the relationship between energy consumption and output in a macroeconomic setting and ask the question do permanent shocks dominate changes in energy consumption and output at business cycle horizons for the united states to achieve the goal of this paper we undertake a variance decomposition analysis of shocks based on a common trend and common cycle framework within a vector error correction model our main finding is that permanent shocks explain the bulk of the variations in energy consumption and output at business cycle horizons for the united states

international evidence on the sources of macroeconomic fluctuations abstract this paper examines the causes of macroeconomic fluctuations in five economies germany japan sweden the united kingdom and the united states using a bivariate var model for output and inflation the results demonstrate that both demand and supply shocks are important sources of business cycle fluctuations moreover at the business cycle frequency there are strong similarities between germany the united kingdom and the united states where more than 50 percent of the forecast error variance in both output and inflation are due to supply shocks on the other hand in japan and sweden over 90 percent of the error variance in output and less than 20 percent of the error variance of inflation are due to supply shocks

dutch disease effect of oil rents on agriculture value added in middle east and north african mena countries abstract this paper investigates the effect of oil rents on agriculture value added in oil producing middle east and north african mena countries annual data from 1970 to 2011 panel cointegration tests by pedroni 1999 long ran panel causality tests by canning and pedroni 2008 and two step system gmm by blundell and bond 1998 are used in this study we find a negative relationship between oil rents and agriculture value added in the long run with a rather slow rate of short run adjustment of agriculture value added back to equilibrium after a boom in oil rents these results indicate that an oil sector boom is associated with a contraction in the agriculture sectors of the countries in the panel in the long run this is probably attributable to a resource movement effect from other economic sectors to the booming oil sector in these countries this serves as evidence of a dutch disease effect of an oil sector boom on agriculture in the mena countries in this study

the macroeconomic implications of a resource discovery in an open economy this paper analyses the macroeconomic impact on an economy of the discovery of significant quantities of a natural resource the resource will be termed oil and the analysis is intended to be suggestive of the effects on the u k economy of the discovery of north sea oil and of possible policy responses our motivation is what appears to be an inconsistency between the commonly expressed view that north sea oil has generated unemployment by causing the exchange rate to appreciate2 and the contention of proponents of the new classical macroeconomics that the oil discovery creates no special macroeconomic problems 3 in order to abstract from microeconomic questions we shall assume that oil is perfectly tradable and that there are no extraction costs 4 we also assume that the foreign currency oil price is exogenous and rises at the foreign interest rate the effect of these assumptions is that for the economy as a whole the oil discovery can be considered as a foreign exchange windfall of fixed magnitude and we define the term oil revenue in a permanent income sense as the infinite term foreign exchange annuity value of this windfall oil revenue as defined is independent of depletion policy it accrues whether or not depletion is occurring at any date since it includes capital gains on the oil stock and depends in no way on whether the oil is exported or used domestically it will be assumed throughout that the economy operates with a flexible exchange rate and that international capital mobility is perfect at the date of discovery the economy is assumed to be at zero inflation full employment with both current and capital accounts balanced we are primarily interested in the dynamics of adjustment to the oil discovery but comparative static analysis5 provides a convenient point of departure for this purpose only we suppose that depletion is managed so as actually to realise the oil revenue each year if all the oil revenue is saved then there are no effects on demand prices or

absorbing a windfall of foreign exchange dutch disease dynamics abstract the permanent income rule is seldom the optimal response to a windfall of foreign exchange such as that from a resource discovery absorptive capacity constraints require domestic investment and investment in structures requires non traded inputs the supply of which is constrained by the initial capital stock this particularly when combined with intra sectoral capital immobility delays adjustment and creates short run dutch disease symptoms as the real exchange rate sharply appreciates and overshoots its long run value optimal revenue management requires investing in the domestic non traded goods sector and a slow build up of consumption accumulation of foreign assets adjusts to accommodate the time paths of domestic consumption and investment

foreign exchange market efficiency and common stochastic trends abstract in a recent paper baillie and bollerslev 1989 using daily data from 1980 to 1985 identified six common stochastic trends in a vector of seven nominal exchange rates implying the existence of one cointegrating vector cointegration implies that granger causality must run in at least one direction that is at least one of the exchange rates is predictable using current available information this result has been interpreted as foreign exchange market inefficiency by many another interpretation is suggested if the stationary linear combination of spot rates proxies for a time varying risk premium in some way then these results could be explained in a rational and risk averse market this possibility is eliminated if the time series properties of the risk premium are incompatible with those of the error correction term specifically it is demonstrated that the forward risk premium is non stationary for the exchange rates that comprise the exchange rate cointegration relationship in this paper the existence of common stochastic trends in a vector of nominal exchange rates is tested over the period 1974 to 1991 the efficiency of foreign exchange markets is then tested by examining the implications of stochastic trends in the forward premium and what this means for the time series properties of a time varying forward risk premium jel f31 g14

coffee economic fluctuations and stabilisation an intertemporal disequilibrium model with capital market imperfections abstract this paper develops a two period disequilibrium model of a small open economy under keynesian unemployment to analyse the effects of temporary anticipated and permanent coffee price shocks the model includes a government sector that administers a commodity price stabilisation fund and allows for capital market imperfections the type of capital market imperfection makes an important difference to the results of the model in particular when the government borrows on more favourable terms than individuals the coffee price stabilisation fund reduces the multiplier effects of temporary and permanent shocks not only in the first but also in the second period by contrast when individuals face an upward sloping supply of capital curve the stabilisation fund shifts some of these effects from the first to the second period

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

coffee export booms and monetary disequilibrium some evidence for colombia the theoretical models that analyse the monetary consequences of export booms show that under a regime of fixed exchange rates they affect not only the demand for money via real income but also the money supply via foreign exchange accumulation within this theoretical framework this study proposes an empirical approach to determine whether the coffee booms of the second half of the 1970s and mid 1980s led to excess money supply in the colombian economy the findings provide evidence in favour of a direct association between coffee export booms and excess money supply implying that external disturbances jeopardize the ability of the economic authorities to carry out successful monetary policy

foreign exchange market efficiency and cointegration in this note we examine an implication of the cointegration literature for the efficiency of foreign exchange markets in particular if foreign exchange markets are efficient then two spot exchange rates cannot be cointegrated this proposition is tested for 10 dollar bilateral exchange rates over the period january 1973 december 1985

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

news shocks in open economies evidence from giant oil discoveries this article explores the effect of news shocks in open economies using worldwide giant oil and gas discoveries as a directly observable measure of news shocks about future output the delay between a discovery and production is on average four to six years we first analyze the effects of a discovery in a two sector small open economy model with a resource sector we then estimate the effects of giant oil and gas discoveries on a large panel of countries our empirical estimates are consistent with the predictions of the model after an oil or gas discovery the current account and saving rate decline for the first five years and then rise sharply during the ensuing years investment rises robustly soon after the news arrives whereas gdp does not increase until after five years employment rates fall slightly and remain low for a sustained period

cointegration and market efficiency abstract recently many economists have asserted that asset prices determined in efficient asset markets cannot be cointegrated we show that there is no general equivalence between the existence of arbitrage opportunities and cointegration or for that matter a lack of cointegration whether asset prices are cointegrated is a function of the relevant model we first show a convenient way to calculate the cointegrating vector based on necessary and sufficient conditions for cointegration we then examine particular cases including exchange rates interest rates and spot and forward exchange rates and asset prices with incoem flows reinvested and not reinvested jel f31

the long run behaviour of the real exchange rate evidence from colonial pennsylvania this paper empirically investigates the time series properties of real exchange rate between great britain and colonial pennsylvania during 1727 1775 results provide ample evidence of mean reversion in the real exchange rate

oil prices and rural migration the dutch disease goes south abstract we construct a two period general equilibrium model to evaluate policies affecting agricultural migration and exports the model is applied to mexico for the period 1986 1987 to obtain certain qualitative policy conclusions related to the dutch disease brought about by oil price increases dutch disease phenomena can be brought about both as the result of real exchange rate changes as well as price changes caused by migration out of agriculture in the short run it may be possible to use fiscal policy such as value added subsidies to agriculture to at least partially negate the effects of an oil price increase on agricultural exports jel f31 f41

war is in the error term at least since thucydides students of international relations have sought rational explanations for the advent of war rationalist explanations assume purposive action states are said to make reasoned decisions about the use of force although rationalist explanations have proven persuasive durable and offer the basis for cumulative theorizing they also imply substantial limits on what we can know about war i show that the most general rationalist explanation for war also dictates that the onset of war is theoretically indeterminate we cannot predict in individual cases whether states will go to war because war is typically the consequence of variables that are unobservable ex ante both to us as researchers and to the participants thinking probabilistically continues to offer the opportunity to assess international conflict empirically however the realization that uncertainty is necessary theoretically to motivate war is much different from recognizing that the empirical world contains a stochastic element accepting uncertainty as a necessary condition of war implies that all other variables however detailed the explanation serve to eliminate gradations of irrelevant alternatives we can progressively refine our ability to distinguish states that may use force from those that are likely to remain at peace but anticipating wars from a pool of states that appear willing to fight will remain problematic for example we may achieve considerable success in anticipating crises but our ability to predict which crises will become wars will probably prove little better than the naive predictions of random chance the need for uncertainty to account for war means that the same conditions thought to account for war must also exist among states not destined to fight otherwise states themselves will differentiate between opponents in a way that either removes the motives for war or restores uncertainty it has long been accepted that social processes possess an element of uncertainty but the centrality of uncertainty to rationalist explanations for war means that the advent of war is itself stochastic war is literally in the error term

improved estimates and forecasts of error correction models in economics abstract this paper is concerned with improved estimation and better forecasting of major economic activity within the context of error correction ec models as pioneered by sargan in 1964 and extended by numerous economists over the past three decades a new and general econometric methodology with superior average mean squared errors mse for ec models is introduced and for illustration applied to the estimation and forecasting of private consumption and demand for money in australia for the period 1960 1992 the improvement in terms of historical and ex post forecasting mse of our new methodology over the conventional statistical approaches currently in use for ec models is found to be up to 15 43

variance ratio tests of random walk an overview this paper reviews the recent developments in the field of the variance ratio vr tests of the random walk and martingale hypothesis in particular we present the conventional individual and multiple vr tests as well as their improved modifications based on power transformed statistics rank and sign tests subsampling and bootstrap methods among others we also re examine the weak form efficiency for five emerging equity markets in latin america

multivariate estimates of the permanent components of gnp and stock prices the economic assumption that a present value relation holds between consumption and income and between stock prices and dividends or the statistical assumption that the consumption income ratio and the dividend price ratio are stationary imply that the permanent or random walk component in each series of a pair must be the same as the permanent component in the other series of a pair either assumption then allows us to estimate the variance of the permanent component of one series gnp stock prices from the variance of the permanent component of the other consumption dividends or from the covariance of the two series permanent components this paper presents such estimates and finds that the permanent components are about half those estimated by similar univariate methods a series of recent papers has examined the importance of a potential unit root to the behavior of real gnp campbell and mankiw 1986 1987 cochrane 1986 clark 1987 and stock prices fama and french 1986 lo and mai if by 0 the series is stationary the response can be any real number which is the innovation in these estimates instead of forcing us to ask the dichotomous question is there a unit root or not they allow us to continuously measure the importance of a potential unit root the actual estimating technique used in these papers varied somewhat cochrane poterba and summers and lo and mai if a series is stationary the variance of k differences will tend to a precursor to this paper appeared under the title spectral density estimates of unit roots we thank masanao aoki lam hansen masao ogaki and chris sims for helpful suggestions the computer programs and data used in this paper are available on request from the authors

what makes deterrence work cases from 1900 to 1980 the use of military force to achieve foreign policy objectives is an enduring feature of international politics force or the threat of force may be used either to change the status quo or to maintain it threatening the use of force to maintain the status quo often takes the form of deterrence defined by patrick morgan as the threat to use force in response as a way of preventing the first use of force by someone else 1 deterrence sometimes succeeds and sometimes fails failures are attested to by numerous international wars of history in the nuclear age a failure could cost us our lives the conditions of successful deterrence thus require thorough logical and empirical analysis

transitory and permanent disturbances and the current account an empirical analysis in the intertemporal framework the intertemporal models of current account determination demonstrate that in the analysis of the current account balance of a country it is important to distinguish between transitory and permanent disturbances in income and relative prices this paper attempts to decompose the observed data on income and real exchange rate into transitory and permanent components and then uses the decomposed series to test the empirical validity of the predictions of the intertemporal models evidence from the united states and japan provide very limited support for the intertemporal models in terms of the effects of transitory and permanent changes in income on current account balance for both us and japan the study finds that permanent changes in real exchange rate have significant effects on the current account balance statistical tests find no evidence of hysteresis in the trading relations of the two countries

the political economy of nontariff barriers a cross national analysis nontariff barriers to trade are most pervasive when deteriorating macroeconomic conditions give rise to demands for protection by pressure groups when countries are sufficiently large to give policymakers incentives to impose protection and when domestic institutions enhance the ability of public officials to act on these incentives statistical results based on a sample of advanced industrial countries during the 1980s support the argument that the incidence of nontariff barriers tends to be greatest when the preferences of pressure groups and policymakers converge more attention should be devoted to the interaction between societal and statist factors in cross national studies of trade policy

oil production and macroeconomic adjustment in the indonesian economy abstract this paper is concerned with identifying and modelling the macroeconomic contribution of the oil sector to the indonesian economy a brief overview of macroeconomic developments for indonesia is conducted for the period 1970 1991 focusing upon the contribution of oil revenues to gdp the current account and government revenue in addition a simple theoretical macroeconomic model incorporating oil is presented and used for numerical simulation purposes to identify and analyse potential macroeconomic developments for indonesia arising from oil related shocks the overview suggests that oil price shocks are of particular interest in the context of indonesia as are therefore the simulation results derived from this case consideration is also given to the effects upon macroeconomic outcomes arising from various policy responses to oil related shocks in particular emphasis is given to the use of oil revenues for the purpose of stimulating domestic demand or the supply side of the economy and the adoption of a more or less export oriented policy towards oil production

a note on cointegration and international capital market efficiency abstract in a recent paper in the jimf crowder 1994 claims that evidence that spot exchange rates are cointegrated and forward premiums are non stationary implies international capital markets are not efficient this note argues that the cointegration properties of spot exchange rates are independent of the efficiency or inefficiency of financial markets

cointegration market integration and market efficiency abstract this paper uses a standard dynamic general equilibrium asset pricing model to study the relationship among the concepts of efficient markets integrated markets and cointegrated prices within this setting we show that these concepts are independent of one another and any zero one two or three of these characteristics can emerge in equilibrium depending upon taste endowment and technology parameters in particular the results of tests of cointegration among asset prices have no implications about market efficiency or market integration without additional restrictions on the economy or economies

electrical energy usage over the business cycle causality from macroeconomic conditions to electrical usage overall and in the residential commercial industrial and other sectors is examined the paper shows that changes in macroeconomic conditions cause significant changes in electrical usage in the commercial and industrial sectors and overall in addition the paper shows that causality occurs at business cycle frequencies and that there are asymmetries over the business cycle an implication is that forecasts used to assess the probability of exceeding capacity constraints should incorporate forecasts of macroeconomic conditions asymmetries over the cycle and how the commercial and industrial sectors will respond to such changes

sterling and oil discoveries the mystery of nonappreciation abstract this paper analyzes the impact of north sea oil discoveries on the value of sterling by looking at market reactions to announcements of oil discoveries it shows there is no evidence for the common view that oil discoveries led to an appreciation of sterling it also explores alternative explanations for the nonappreciation of sterling

some further evidence on the law of one price the law of one price still holds international trade models often postulate the existence of a representative price i e the price which prevails at all markets this is known as the law of one price in this paper the law of one price is tested for seven commodities among four countries by explicitly considering transaction costs the empirical evidence suggests that in most cases the law of one price cannot be rejected asa maintained hypothesis furthermore for the remaining cases transaction costs seem to cause the failure

using natural resources for development why has it proven so difficult developing economies have found it hard to use natural resource wealth to improve their economic performance utilizing resource endowments is a multistage economic and political problem that requires private investment to discover and extract the resource fiscal regimes to capture revenue judicious spending and investment decisions and policies to manage volatility and mitigate adverse impacts on the rest of the economy experience is mixed with some successes such as botswana and malaysia and more failures this paper reviews the challenges that are faced in successfully managing resource wealth the evidence on country performance and the reasons for disappointing results

measuring global money market interrelationships an investigation of five major world currencies abstract this paper extends the study of global money market integration in two primary directions first a technique which combines stationarity and cointegration tests as a basis for constructing an error correction model is applied to assess the existence of long run equilibrium relationships between money market series second analysis for the increasingly significant asian offshore markets of singapore and hong kong is added to traditional european and national markets analysis major findings are 1 the error correction model is an appropriate technique for identifying causality relationships and 2 major domestic markets and included offshore markets are partially segmented

geopolitics and the dollar abstract in this paper coefficients relating the real dollar exchange rates of 11 industrialized democracies to us defense expenditures are found to be a function of geopolitical national security variables these findings support the hypothesis that safe haven investment decisions have affected real dollar exchange rates over the 1973 86 period

cointegration based tests of daily foreign exchange market efficiency abstract an immediate implication of cointegration is the existence of granger causal orderings among cointegrated series this implies that asset prices determined in a weakly efficient market cannot be cointegrated this proposition is tested using daily data for 18 foreign currencies tests are conducted for both pairwise combinations of currencies and higher order systems no significant evidence of cointegration among exchange rates is found

rational deterrence theory and comparative case studies several recent books have argued that comparative case studies of crises demonstrate the failure of rational deterrence theory they have offered certain empirical generalizations as substitutes this paper shows that such contentions are unwarranted first the empirical generalizations are impressive as historical insights but they do not meet the standards for theory set out by the most sophisticated case study analysts themselves second the tests of rational deterrence used in the case studies violate standard principles of inference and the ensuing procedures are so biased as to be useless rational deterrence then is a more successful theory than portrayed in this literature and it remains the only intellectually powerful alternative available case studies are essential to theory building more efficiently than any other methods they find suitable variables suggest middle range generalizations for theory to explain and provide the prior knowledge that statistical tests require their loose constraints on admissible propositions and suitable evidence are appropriate and even necessary for these tasks these same characteristics however inevitably undermine all attempts to construe case study generalizations as bodies of theory or tests of hypotheses

rational deterrence theory and evidence the causes and effects of the use of force raise crucial questions of substance and method issues are multiple and often are confused with each other thus while many case study findings contradict second wave deterrence theory they are consistent with some rational deterrence theories many findings however cannot be squared with the assumptions of rationality policies are suboptimal and behavior is often inconsistent furthermore the actor s values beliefs and calculations are exogenous to rational theories and can only be supplied by empirical analysis

productivity in the united states and its relationship to government activity an analysis of 57 years 1929 1986 under the classical supply side paradigm of productivity grouth raising government economic above rudimentary levels integrates markets and provides useful public goods which enhance growth beyond some point however increasing government activity discourages growth through tax disincentives and by rewarding dependence on government expenditures defining government economic activity to be government expenditures as a percentage of gnp this study looks first at data for the period 1889 1986 and shows that the u s economy has experienced what is predicted by the supply side paradigm in addition the study presents an econometric analysis of government s effects on productivity for the period 1929 1986 using a standard neoclassical growth model this analysis validates the classical supply side paradigm and shows that maximum productivity growth occurs when government expenditures represent about 20 of gnp far less than the 35 which existed in 1986

the causal relationships between equity indices on world exchanges the engle and granger cointegration analysis and granger causality tests are applied to monthly time series of nine major stock market indices over the period january 1982 to february 1991 to examine for causal linkages the empirical results indicate that there is adequate evidence to refute the notion of informationally efficient stock markets

can an oil discovery lead to a recession a comment on eastwood and venables in a recent paper in this journal eastwood and venables ev present an analysis of the macroeconomic consequence of an oil discovery in an open economy model which assumes perfect international capital mobility rational exchange rate expectations and sluggish adjustment of domestic goods prices in this note the authors attempt to reconcile this apparent contradiction in the literature in particular the authors show that ev s results hinge crucially on their failure to allow for a direct impact of higher oil wealth on money demand even when all the oil revenue accrues to the government this should raise private sector wealth through the anticipated reduction in future tax liabilities in any case the authors find it difficult to conceive a situation in which an oil discovery will raise spending but leave money demand permanently unaffected the purpose of this note is to show the important implications of this observation for the effects of an oil discovery when appropriate monetary accommodation does not take place

booming sector and de industrialisation in a small open economy this paper presents a theoretical analysis of the dutch disease the phenomenon whereby a boom in one traded goods sector squeezes porfitability in other traded goods sectors both by directly bi

permanent and transitory components in macroeconomic fluctuations fluctuations in real gnp have traditionally been viewed as transitory deviations from a deterministic time trend the purpose of this paper is to review some of the recent developments that have led to a new view of output fluctuations and then to provide some additional evidence using post war quarterly data it is hard to reject the view that real gnp is as persistent as a random walk with drift we also consider the hypothesis that the recent finding of persistence are due to the failure to distinguish the business cycle from other fluctuations in real gnp we use the measured unemployment rate to decompose output fluctuations we find no evidence for the view that business cycle fluctuations are more quickly trend reverting this abstract was borrowed from another version of this item

agriculture in an export boom economy a comparative analysis of policy and performance in indonesia mexico and nigeria abstract the 1970s oil boom was accompanied for most developing country exporters by stagnating agricultural production high rural emigration and high levels of food imports this paper evaluates the experiences of indonesia mexico and nigeria dutch disease and other macroeconomic phenomena had important effects on agricultural performance but equally if not more important were microeconomic factors including agricultural price policies changing patterns of food demand based on distribution of petroleum income and public investment structural characteristics of the agricultural sector factor intensity of different subsectors labor availability and migration patterns and geographical concentration of agricultural activity and strategies of agricultural development and investment

cointegration and predictability of asset prices abstract this article argues that whatever concerns one might have about the identification of a cointegrating relationship with market inefficiency cointegration tests can still be usefully employed to investigate the predictability of asset prices we examine the case of n dimensional systems and show that the standard assumption made in the literature that cointegration implies predictability of all n asset prices is not valid in the presence of r cointegrating vectors only r prices are predictable and standard wald or lm tests carried out within johansen s maximum likelihood ml framework can be used to establish for which prices unpredictability does not hold similarly one can distinguish between joint unpredictability in the short and long run when asset prices are driven by fundamentals

boom goes the price giant resource discoveries and real exchange rate appreciation we estimate the effect of giant oil and gas discoveries on bilateral real exchange rates the size and plausibly exogenous timing of such discoveries make them ideal for identifying the effects of an anticipated resource boom on prices we find that a giant discovery with the value of a country s gdp increases the real exchange rate by 14 within 10 years following the discovery the appreciation is nearly exclusively driven by an appreciation of the prices of non tradable goods we show that these empirical results are qualitatively and quantitatively in line with a calibrated model with forward looking behaviour and dutch disease dynamics

the quality of consumption some australian evidence abstract the paper reports new estimates of theil s index of the quality of consumption for four age groups and at two levels of affluence income for australian households over the period 1975 iv to 1982 iv with special emphasis on the role played by energy and non energy commodity groups the evidence reveals an improvement in the quality of consumption of energy and energy related goods and a quality deterioration in food clothing and rent at all income levels and for all four age groups

consumption innovation persistence and the excess smoothness debate based on studies using us data consumption is too smooth relative to the implications of the rational expectations permanent income hypothesis repih of consumption we examine this and a number of related methodologicalissues for the uk using maximum likelihood estimation mle of an autoregressive fractionally integrated moving average arfima model of the income process we conclude that an innovation to income has a persistent effect on consumption and that in contrast to the findings from us studies consumption is too volatile compared to the repih model further mle is substantially more efficient than the semi parametric method of estimating arfima models which has previously been used in this area

are foreign exchange markets really efficient asset prices determined in a weakly efficient market cannot be cointegrated because cointegration implies a granger causal link however strong evidence of cointegration in currency markets is found using johansen s multivariate procedure on london daily closing rates for the six major currencies in dollar terms an error correction based trading model is implemented

the effect of oil discoveries on the british economy theoretical ambiguities and the consistent expectations simulation approach the finding of oil in the north sea has stimulated the interest of u k economists in the effect of resource discoveries on an open economy this has spawned a large number of theoretical papers including those by neary 1983 eastwood and venables 1982 buiter and miller 1981 and neary and purvis 1981 these papers are primarily concerned with the various dynamic effects which are likely and have typically assumed perfect capital mobility and perfect foresight in order to keep the analysis tractable however it turns out that these models can say nothing about the dynamic response to an oil discovery unless some unrealistic assumptions are made about the associated monetary effects this is demonstrated in the first part of the paper this point has been made independently by neary and wijnbergen 1982 the second part of the paper describes some results obtained by simulating the treasury macroeconomic model under similar assumptions to those used in the theoretical literature in an attempt to throw some empirical light on these ambiguities

is cyclical real gnp really more persistent than the trend using an observed components decomposition to estimate permanent and temporary components of us real gnp campbell and mankiw 1987 found that the estimated temporary component displays greater persistence than the estimated permanent component this suggests that attempts to estimate separate permanent and temporary components in real gnp are unlikely to succeed this finding is re examined here using a longer real gnp series and a different decomposition which guarantees that the estimated temporary component will be stationary the resulting estimates of permanent and temporary output suggests that the temporary component displays no persistence and that the permanent component exhibits almost precisely the persistence of a random walk with drift cyclical real gnp is not more persistent than the trend

adjustment costs and pricing to market theory and evidence abstract this paper develops an adjustment cost model of pricing to market the model consists of a monopolist who supplies an identical nondurable good to two foreign markets it is shown that the degree of pricing to market increases with the relative importance of the transitory component in exchange rates customs data from 1978 through 1987 on u s and canadian imports of seven german commodities are used to estimate the model s parameters and test its over identifying restrictions

deterrence and foreign policy the article by christopher achen and duncan snidal in this issue however provocative some of its observations has the merit of raising an important question how should we think about the relationship between deductive theories of deterrence on the one hand and on the other research on deterrence that is at the same time empirical and oriented toward theory while forcefully defending the deductive form of theory achen and snidal also clearly dissociate themselves from the extreme position that it is a self contained enterprise that need not take empirical research seriously rather they recognize that empirical case studies are capable of contributing and indeed have to some extent already contributed to the development of theory perhaps even to the kind of deductive theory they favor

nigeria during and after the oil boom a policy comparison with indonesia nigeria and indonesia provide an interesting contrast with regard to performance and policy during and after the oil boom roughly a decade after the first oil shock nigeria is faced with several economic problems including a serious decline in its agricultural sector and a deteriorating external debt situation while some decline in the nonoil traded goods sector reflects efficient adjustment to the oil boom policy with regard to public expenditure exchange rates pricing and the trade regime could exacerbate such decline and impede readjustment as the boom subsides the links between oil prices deficits inflation and real exchange rate appreciation are analyzed and nigerian and indonesian fiscal and exchange rate and agricultural and foreign borrowing strategies are compared it is concluded that with the exception of cuts in the deficit since 1984 nigerian policy following the boom has not been conducive to adjustment to the current period of low oil prices and high real interest rates corrective measures and policy options are discussed

testing the hypothesis of market efficiency in the taiwan us forward exchange market since 1990 this article examines the applicability of the hypothesis of market efficiency in taiwan s foreign exchange market using daily data instead of linear regression based models we consider the possibility that the true data generating process may come from two different distributions and we employ the markov switching approach to analyse this from the results of the two state markov switching model we define state 1 as the efficient state and state 2 as the inefficient one only the 30 day forward rate is able to differentiate between the two states based on the unconditional probabilities from the markov switching model we also find that the 30 day forward rate has a 70 probability in the efficient state which indicates that 70 of all speculators fully extract information when predicting future spot rates while 30 of all investors do not

fiscal policy and the real exchange rate abstract this paper reconsiders some conventional notions about fiscal policy under flexible exchange rates using an extended version of the dornbusch overshooting model the extension allows for a long run link between output and the real exchange rate unanticipated permanent fiscal policy affects both current and long run output while the long run effect is always in the expected direction it is possible that the current effect is perverse both fiscal and monetary policy must cause either nominal exchange rate overshooting or perverse domestic interest rate effects the results suggest that real shocks are a potential source of high exchange rate variability

macro policy responses to natural resource windfalls and the crash in commodity prices policy prescriptions for managing natural resource windfalls are based on the permanent income hypothesis none of the windfall is invested at home and saving in an intergenerational swf is dictated by smoothing consumption across different generations furthermore with dutch disease effects the optimal response is to intertemporally smooth the real exchange rate smooth public and private consumption and limit sharp fluctuations in the intersectoral allocation of production factors we show that these prescriptions need to be modified for the following reasons first to cope with volatile commodity prices precautionary buffers should be put in a stabilisation fund second with imperfect access to capital markets the windfall must be used to curb capital scarcity invest domestically and bring consumption forward third with real wage rigidity consumption must also be brought forward to mitigate transient unemployment fourth the real exchange rate has to temporarily appreciate to signal the need to invest in the domestic economy to gradually improve the ability to absorb the extra spending from the windfall fifth with finite lives the timing of handing back the windfall to the private sector matters and consumption and the real exchange rate will be volatile finally with nominal wage rigidity we show that a taylor rule is a better short run response to a crash in commodity prices than a nominal exchange rate peg

common nonstationary components of asset prices abstract portfolio separation in a multi period general equilibrium context implies that asset prices are collinear in economies that do not exhibit separation but that move close to separation approximate collinearity or cointegration emerges as a statistical model of actual data a new test for cointegration is proposed it is based on time series canonical correlation analysis and solves the problem of unidentified parameters under the null hypothesis and of identification of the cointegrating vectors when more than two time series are investigated an empirical analysis of prices of five size based portfolios and five industry based portfolios of common stock reveals substantial evidence of cointegration

does comovement among exchange rates imply market inefficiency abstract this paper argues that contrary to what has been reported in the empirical literature previously cointegration between pairs of exchange rates does not necessarily rule out informational efficiency in currency markets the basic reason is that market efficiency does not rule out predictable exchange rate movements but only rules out arbitrage opportunities from predictable exchange rate movements as the usual parity conditions dictate

long term relationships of major macro variables in a resource related economic model of australia a cointegration analysis abstract the paper reports the results of a simple cointegration analysis applied to bivariate causality models using data on resource output oil prices terms of trade current account and output growth to investigate the long term relationships in the sense of granger among these major macroeconomic aggregates in a resource related economic model of australia for the period 1960 90 the empirical evidence indicates that these five macro variables as formulated in our model are not random walks in addition resource production and oil prices are significantly cointegrated and they are also significantly cointegrated with the current account terms of trade and economic growth these findings provide support to the long term adjustments foundation of our resource related model

macro models and macro policy in the 1980s macroeconometric models play a key role in the policy making process they provide a consistent and comprehensive account of the various eco nomic interactions quantified with reference to historical data a treasury economist testifies that we could not operate at all effectively in policy analysis without the model odling smee 1989 p 34 models are simplifications however focus ing attention on the problem at hand changing when that focus of attention changes and changing when forecast failures highlight inadequacies in existing specifications moreover they are built in accordance with an underlying view of the way the world worics and the available data cannot always provide a clear discrimination between competing views thus models are not only an essential part of the policy analyst s equipment but also a reflection of economic opinion and policy concerns in this spirit our paper analyses the changes in and the interactions between modelling and policy making in the 1980s

boom or gloom examining the dutch disease in two speed economies traditional studies of the dutch disease do not account for productivity spillovers between the booming resource sector and other domestic sectors we put forward a simple theory model that allows for such spillovers we then identify and quantify these spillovers using a bayesian dynamic factor model the model allows for resource movements and spending effects through a large panel of variables while also identifying disturbances to other shocks using australia and norway as representative cases studies we find that a booming resource sector has substantial productivity spillovers on non resource sectors effects that have not been captured in previous analysis

energy consumption in australia evidence from a generalized working model abstract the paper reports an application of the generalized working model as proposed by laitinen theil raparla 1981 to australian household expenditure data to obtain estimates of income elasticities for four types of energy electricity gas other fuels and petrol the evidence indicates some gain in the laitinen theil raparla model but this gain is insufficient in terms of the atkinson 1973 test to significantly discriminate it from the linear expenditure system

estimation of complete demand systems from household budget data the linear and quadratic expenditure systems in this paper we explore two issues in empirical demand analysis the estimation of complete systems of demand equations using household budget data section i and the incorporation of demographic characteristics into such systems section ii although there are numerous studies which use time series data to estimate complete demand systems and many which estimate engel curves from household budget data there are virtually none which combine budget data from different periods to estimate complete systems since each budget study corresponds to a single price situation one might conjecture that estimation of complete systems would not be possible unless budget studies were available from a large number of periods this is incorrect in section i we argue that interesting complete demand systems can be estimated from a small number of budget studies despite the limited price variability represented in such data to demonstrate this we use budget study data for two periods to estimate a pair of related demand systems the familiar linear expenditure system les and a quadratic expenditure system qes a generalization of les in which the demand equations are quadratic in total expenditure the inclusion of demographic variables in the analysis of household consumption patterns is desirable because there are likely to be systematic differences in the consumption behavior of households with different demographic characteristics but the effects of demographic characteristics have seldom been studied within the framework of complete demand systems in section ii we propose translating as a general method for incorporating demographic variables into complete systems of demand equations this method has not previously been discussed as a general technique for bringing demographic variables into demand systems although it has been employed in several studies to improve the estimates of the les and the qes presented in section i we reestimate these two systems using translating to incorporate family size

cointegration and stock prices the random walk on wall street revisited abstract one of the more famous and empirically regular instances of unit roots occurs in stock price series where they are consistent with rational expectations and efficient markets under certain assumptions in this paper we investigate the dynamic behavior of five stock prices over the volatile period from january 1972 through december 1979 finding that the series are cointegrated with one dominant common trend a component with an estimated root of 0 95 in addition we find a lesser trend and two complex roots in the cycle model these findings are validated by out of sample forecasts beginning in january 1980 in addition to mean squared error criteria the forecasts are evaluated nonparametrically in two separate applications of a test due to henriksson and merton

resource price turbulence and macroeconomic adjustment for a resource exporter a conceptual framework for policy analysis abstract increased global demand for energy and other resources particularly from the rapidly developing economies of china and india and the opening up of global resource markets to global investors and speculative activity has resulted in considerable recent turbulence in resource prices the recent magnitude of change in resource prices both positive and negative and their macroeconomic implications is of considerable contemporary importance to both resource importing and exporting economies for a resource exporting economy such as that of australia the recent resource price boom has resulted in increased government taxation revenue increased employment and wages in the resource and resource related sectors increased spending in the domestic economy that contributed to buoyant economic growth increased resource exports to the booming economies of china and india and contributed to a stronger domestic currency with beneficial effects upon inflation on the other hand these developments have had adverse effects on the non resource sector by subjecting it to more intense competition for limited resources contributing to a loss of international competitiveness and reduced exports arising from a stronger exchange rate reducing employment in the relatively more labour intensive non resource sector and contributing to an eventual slow down in the overall economy these positive and negative effects and the overall impact of a resource price boom require a fundamentally closer analysis of the structure of the economy under scrutiny in this context the policy response by government is likely to be pivotal in determining the overall macroeconomic outcomes from a resource price boom the aim of this paper is to develop a generic analytical framework to appraise economic outcomes in the wake of a resource price boom for a resource producing and exporting economy to this end a dynamic long run macroeconomic model is developed emphasising the important role and contribution of government fiscal policy in influencing subsequent macroeconomic outcomes the adjustment process in the model arising from a resource price shock emphasises a spending or wealth effect an income effect a revenue effect a current account effect and an exchange rate effect which facilitate a robust analysis of subsequent macroeconomic outcomes from such a shock as well as related policy responses

macroeconomic policy in an oil exporting economy with foreign exchange controls the sudden and sharp increases in oil prices during the past decade and the discovery and extraction of oil in the north sea have recently contributed to a renewal of interest in the macroeconomic problems of oil exporting countries in general and those of industrialized and semi industrialized oilexporting countries such as the uk and mexico in particular the economic implications of the north sea oil revenues for the british economy have been hotly debated by forsyth and kay 1980 1981 worswick 1980 barker 1981 corden 1981 and byatt et al 1982 the effects of oil and gas revenues on the economies of canada mexico the netherlands norway and the uk have also been the subject of analysis and discussion in barker and brailovsky 1981 despite their important contribution these studies fall short of formulating a comprehensive theoretical framework for the study of macroeconomic policy in oil exporting countries in general the resurgence of interest in the macroeconomics of oil exporting economies and the lack of a satisfactory theoretical framework emphasize the need for the explicit introduction of an oil sector into macroeconomic models of the open economy the more recent studies by buiter and purvis 1983 eastwood and venables 1982 corden and neary 1982 and neary and purvis 1982 have gone some way towards meeting this need but they are better suited to the study of macroeconomic policy in developed oil exporting countries such as the united kingdom where highly developed financial markets already exist 1 without exception all these studies assume that the economy under consideration operates with a floating exchange rate and that the private capital is internationally mobile they also invariably ignore the short term and the long term financial repercussions of changes in oil income that operate via the government budget constraint and the asset position of the private sector these assumptions are however inappropriate for most oil exporting countries in the middle east africa and latin america the purpose of this paper is to examine the short run and long run macroeconomic consequences of an increase in oil revenues in an oil exporting country characterized by strict foreign exchange controls on private capital flows we attempt to do this in the context of a keynesian underemployment model of the type analysed for example by turnovsky and kaspura 1974 branson 1976 and argy and salop 1979 but with domestic prices set according to a mark up rule along the lines advocated for example by fetherston and godley 1978 1981 unlike argy and salop but in line with other recent contributions to the macroeconomic theory of open economies the present paper explicitly allows for the existence of the government budget constraint and analyses the macroeconomic effects of changes in oil revenues both in the short run when

emerging market business cycles learning about the trend abstract emerging market business cycles feature a higher variability of consumption relative to output and a strongly countercyclical trade balance an equilibrium business cycle model in which agents learn to distinguish between the permanent and transitory components of total factor productivity shocks using the kalman filter accounts for these features calibrated to mexico the model accounts for the behavior of consumption and the trade balance for a wide range of variability and persistence of permanent shocks relative to transitory shocks estimation for mexico and canada suggests more severe informational frictions in emerging markets than in developed economies