entrepreneurship and income inequality in southern ethiopia this article uses inequality decomposition techniques in order to analyze the consequences of entrepreneurial activities to household income inequality in southern ethiopia a uniform increase in entrepreneurial income reduces per capita household income inequality this implies that encouraging rural entrepreneurship may be favorable for both income growth and income distribution such policies could be particularly successful if directed at the low income low wealth and relatively uneducated segments of the society

asset prices credit and the business cycle abstract this paper uses the multivariate unobserved components model with phase shifts to analyse the interaction of interest rates output asset prices and credit in the us we find close linkages amongst cyclical fluctuations in the variables

monetary policy and macroprudential policy different and separate the paper discusses how monetary and macroprudential policies can be distinguished how appropriate goals for the two policies can be determined whether the policies are best conducted separately or coordinately and by the same or different authorities and how they can be coordinated when desired the institutional frameworks in canada sweden and the uk are briefly compared the swedish example of monetary policy strongly leaning against the wind and the subsequent policy turnaround is summarized as well as what estimates have been found of the costs and benefits of leaning against the wind politique monetaire et politique macro prudentielle differente et separee ce memoire se demande comment on peut distinguer les politiques monetaire et macro prudentielle comment on peut determiner les objectifs de ces deux politiques si ces deux politiques ont un meilleur impact separement ou coordonnees et mises en uvre par la meme ou differentes autorites et comment on peut les coordonner quand on le desire on compare succinctement les cadres institutionnels du canada de la suede et du royaume uni la politique monetaire suedoise va fortement a contre courant et le virage subsequent de la politique est resume ainsi que les couts et avantages de cette strategie

why has u s inflation become harder to forecast we examine whether the u s rate of price inflation has become harder to forecast and to the extent that it has what changes in the inflation process have made it so the main finding is that the univariate inflation process is well described by an unobserved component trend cycle model with stochastic volatility or equivalently an integrated moving average process with time varying parameters this model explains a variety of recent univariate inflation forecasting puzzles and begins to explain some multivariate inflation forecasting puzzles as well

employment dynamics in the rural nonfarm sector in ethiopia do the poor have time on their side abstract we study rural employment transitions in ethiopia between farming and both low and high return nonfarm employment we find that initial asset holdings and access to saving and credit are important factors for transition into high return rural nonfarm employment and that households participation in high return rural nonfarm activities is robust to their experience of health shocks however shocks that affect their wealth or liquidity may trigger descents into low return nonfarm employment on the other hand shocks that reduce agricultural income motivate transitions into high return rural nonfarm employment

nonfarm income diversification and household livelihood strategies in rural africa concepts dynamics and policy implications abstract asset activity and income diversification lie at the heart of livelihood strategies in rural africa this paper introduces a special issue on the topic income diversification and livelihoods in rural africa cause and consequence of change we concentrate on core conceptual issues that bedevil the literature on rural income diversification and the policy implications of the empirical evidence presented in this special issue

entry into the market for large transport aircraft abstract european governments have been accused of unfair trading practices in providing subsidies for market entry in the large commercial aircraft industry a capacity game is calibrated for 1987 to 2006 showing that the disadvantage of late entry is overcome only after a long time hence market entry is unlikely without government subsidies the scale and scope effects of production outweigh the output reducing effects of a monopoly government supported market entry as an anti monopoly policy yields higher consumer welfare overall welfare is lower due to large losses in producer surplus

agroclimatic shock income inequality and poverty evidence from burkina faso abstract this paper examines the impacts of agroclimatic shock on income inequality and poverty using household farm data from three agroecological zones of burkina faso together with income source decompositions of the gini coefficient and the foster greer thorbecke poverty index before and after a severe drought our findings reveal that because the poor lack acces to off farm income off farm income increases inequality and fails to shield poor households against agroclimatic risks the direction of the empirical relationship between changes in inequality and poverty after the drought depends critically on environmental variables and on apparent constraints on income diversification at different points in the income distribution

detrending and turning points this paper examines the sensitivity of turning points classification to different detrending methods and the ability of each method to replicate nber dating we use two different turning point rules and a variety of detrending methods to compute the cyclical component of output we show that while differences are minor with the first rule the results are extremely sensitive to detrending with the second rule many detrending procedures generate false alarms and many miss several commonly classified turning points the output series detrended with the hodrick and prescott filter and with a frequency domain masking of the low frequency components of the series reproduce all nber turning points with at most two quarters lead or lag regardless of the dating rule used

shocks consumption and income diversification in rural ethiopia abstract we present new evidence that households are unable to protect themselves from rainfall failure that occurs on average every five years in rural ethiopia however other less extreme rainfall variation and idiosyncratic shocks such as illness and crop pests do not impact significantly on consumption agricultural shocks impact negatively on farm income as expected however they also stimulate non agricultural earnings by an equivalent amount in the case of a covariate shock such as severe rainfall failure this smoothing mechanism may be ineffective and rainfall insurance or drought triggered safety nets could provide further protection

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

bank lending and property prices in hong kong abstract this paper studies the relationship between residential property prices and bank lending in hong kong this is an interesting topic for three reasons first swings in property prices have been extremely large and frequent in hong kong second under the currency board regime monetary policy cannot be used to guard against asset price swings third despite the collapse in property prices since 1998 the banking sector remains sound while the contemporaneous correlation between lending and property prices is large our results suggest that the direction of influence goes from property prices to bank credit rather than conversely

the impact of monetary policy on stock market bubbles and trading behavior evidence from the lab we investigate the effect of monetary policy on stock market bubbles and trading behavior in experimental asset markets we introduce the possibility of investing in interest bearing bonds to the widely used laboratory asset market design of smith et al 1988 treatment groups face a variable interest rate policy which depends on asset prices while control groups are subjected to a constant interest rate we observe a strong impact of our interest rate policy on liquidity in the stock market but only a small impact on bubbles however we find that announcing the possibility of reserve requirements significantly reduces bubbles

the dynamics of livelihood diversification in post famine ethiopia abstract based on data for almost 300 households this paper explores associations among income diversification household perceptions of livelihood risks and changes in consumption outcomes across two points in time in post famine ethiopia four key questions are addressed i to what extent did households emerging from the famine period with relatively higher income and calorie consumption levels also have a more diversified income base ii was higher income diversification in 1989 associated with higher income and consumption levels by 1994 iii which households increased their share of income from non cropping activities most during the inter survey years and iv did household heads perceive a lack of non farm income activities to be an important risk factor in famine vulnerability we find that wealthier households tended to have more diversified income streams those initially more diversified subsequently experienced a relatively greater increase in both income and calorie intake households with a greater concentration of assets were more likely to fall in their relative outcome ranking as were female headed households and initially less diversified households subsequently realized greater gains in income diversification we also find suggestive evidence that personal perceptions of risk factors guided subsequent diversification decisions

the dynamic effects of aggregate demand and supply disturbances we interpret fluctuations in gnp and unemployment as due to two types of disturbances disturbances that have a permanent effect on output and disturbances that do not we interpret the first as supply disturbances the second as demand disturbances demand disturbances have a hump shaped mirror image effect on output and unemployment the effect of supply disturbances on output increases steadily over time peaking after two years and reaching a plateau after five years

rural livelihood diversification in sub saharan africa a literature review abstractthis article provides a comprehensive review of the literature on the nature and evolution of rural livelihood diversification in sub saharan africa and the situation regarding smallholders it reveals mixed findings about the causes and consequences of livelihood diversification on rural smallholders adopting this strategy a lot of evidence from the literature suggests that it is relatively better off smallholders with sufficient assets who achieve successful livelihood diversification mainly by exploiting opportunities and synergies between farm and nonfarm activities because of asset constraints increase in incomes and wealth based on livelihood diversification has not yet benefitted the large majority of smallholders

few opportunities much desperation the dichotomy of non agricultural activities and inequality in western kenya summary using data from western kenya we confirm the existence of a dichotomous non agricultural sector the poverty and inequality implications of the differently motivated diversification strategies only partly correspond to expected patterns while high return activities are indeed confined to richer households low return activities constitute an important income source for households across the entire income distribution finally we examine the wider implications of our findings for rural livelihoods we find that only engagement in high return non agricultural activities is significantly associated with increased agricultural productivity it seems that such high return activities play a key role in triggering cumulative effects of relative livelihood success

detrending and business cycle facts a user s guide this note argues that it is hardly the case that the profession is fully aware that the application of di erent filters to the data leads to di erent outcomes and that we have enough evidence to claim that these di erences are unimportant to evaluate the fit models to the data 1998 elsevier science b v all rights reserved jel classification b41 e32

predicting u s recessions financial variables as leading indicators this paper examines the out of sample performance of various financial variables as predictors of u s recessions series such as interest rates and spreads stock prices and monetary aggregates are evaluated individually and in comparison with other financial and nonfinancial indicators the analysis focuses on out of sample performance from one to eight quarters ahead results show that stock prices are useful with one to three quarter horizons as are some well known macroeconomic indicators beyond one quarter however the slope of the yield curve emerges as the clear individual choice and typically performs better by itself out of sample than in conjunction with other variables

business cycle convergence in emu a first look at the second moment we analyse the dynamics of the standard deviation of demand and supply shocks as well as of the demand component of gdp across countries in the european monetary union emu this analysis allows us to evaluate the patterns of cyclical comovement in emu and compare them the cyclical performance of the new members of the eu and other oecd countries we make use of sigma convergence methods to identify synchronization patterns in business cycles the eurozone has converged to a stable lower level of dispersion across business cycles during the end of the 80s and the beginning of the 90s the new eu members have also experienced a strong pattern of convergence from 1998 to 2005 when a strong divergence trend appears an enlargement of the emu to 22 members would not significantly decrease its optimality as a currency area there is evidence for some europe specific characteristics as compared to global comovements in business cycles authors abstract

what does a financial shock do first international evidence in this paper we attempt to evaluate the quantitative impact of financial shocks on key indicators of real activity and financial conditions we focus on financial shocks as they have received wide attention in the recent literature and in the policy debate after the global financial crisis we estimate a panel var for 21 advanced economies based on quarterly data between 1985 and 2011 where financial shocks are identified through sign restrictions we find robust evidence that financial shocks can be separately identified from other shock types and that they exert a significant influence on key macroeconomic variables such as gdp and particularly investment but it is unclear whether these shocks are demand or supply shocks from the standpoint of their macroeconomic impact the financial development and structure of a given country is found not to matter much for the intensity of the propagation of financial shocks moreover we generally find that these shocks play a role not only in crisis times but also in normal conditions finally we discuss the implications of our findings for monetary policy fabio fornari and livio stracca

detrending stylized facts and the business cycle the stylized facts of macroeconomic time series can be presented by fitting structural time series models within this framework we analyse the consequences of the widely used detrending technique popularised by hodrick and prescott 1980 it is shown that mechanical detrending based on the hodrick prescott filter can lead investigators to report spurious cyclical behaviour and this point is illustrated with empirical examples structural time series models also allow investigators to deal explicitly with seasonal and irregular movements that may distort estimated cyclical components finally the structural framework provides a basis for exposing the limitations of arima methodology and models based on a deterministic trend with a single break

should central banks respond to movements in asset prices in recent decades asset booms and busts have been important factors in macroeconomic fluctuations in both industrial and developing countries in light of this experience how if at all should central bankers respond to asset price volatility we have addressed this issue in previous work bernanke and gertler 1999 the context of our earlier study was the relatively new but increasingly popular monetary policy framework known as inflation targeting see e g bernanke and frederic mishkin 1997 in an inflation targeting framework publicly announced medium term inflation targets provide a nominal anchor for monetary policy while allowing the central bank some flexibility to help stabilize the real economy in the short run the inflation targeting approach gives a specific answer to the question of how central bankers should respond to asset prices changes in asset prices should affect monetary policy only to the extent that they affect the central bank s forecast of inflation to a first approximation once the predictive content of asset prices for inflation has been accounted for there should be no additional response of monetary policy to assetprice fluctuations in use now for about a decade inflationtargeting has generally performed well in practice however so far this approach has not often been stress tested by large swings in asset prices our earlier research employed simulations of a small calibrated macroeconomic model to examine how an inflation targeting policy defined as one in which the central bank s instrument interest rate responds primarily to changes in expected inflation might fare in the face of a boom and bust cycle in asset prices we found that an aggressive inflationtargeting policy rule in our simulations one in which the coefficient relating the instrument interest rate to expected inflation is 2 0 substantially stabilizes both output and inflation in scenarios in which a bubble in stock prices develops and then collapses as well as in scenarios in which technology shocks drive stock prices intuitively inflation targeting central banks automatically accommodate productivity gains that lift stock prices while offsetting purely speculative increases or decreases in stock values whose primary effects are through aggregate demand conditional on a strong policy response to expected inflation we found little if any additional gains from allowing an independent response of central bank policy to the level of asset prices in our view there are good reasons outside of our formal model to worry about attempts by central banks to influence asset prices including the fact that as history has shown the effects of such attempts on market psychology are dangerously unpredictable hence we concluded that inflationtargeting central banks need not respond to asset prices except insofar as they affect the inflation forecast in the spirit of recent work on robust control the exercises in our earlier paper analyzed the performance of policy rules in worst case discussants robert shiller yale university glenn rudebusch federal reserve bank of san francisco kenneth rogoff harvard university

poverty and the rural nonfarm economy in oromia ethiopia the rural nonfarm sector has gained increasing importance not only in asia but also in africa it is however widely believed that in most parts of africa the growth of the nonfarm economy has increased inequality and has had a limited effect on the poor who face entry barriers to nonfarm activities the present article analyzes the relation between nonfarm income poverty and inequality in oromia ethiopia we use two complementary methodologies i econometric estimates of household income from the nonfarm sector and ii a gini decomposition of analysis income inequality by source the results consistently indicate that in oromia entry barriers to nonfarm activities is low and the general growth of the sector will benefit the poor

the rural non farm sector issues and evidence from developing countries abstract the rural non farm sector has traditionally been viewed as a low productivity sector which produces low quality goods it is often expected to wither away as a country develops recent years have seen a shift away from this position towards recognition that the rural non farm sector can and often does contribute to economic growth rural employment poverty reduction and a more spatially balanced population distribution this paper reviews the literature on the conceptual and empirical underpinnings of this more recent perspective focussing on the experience in developing countries the paper documents the size and heterogeneity of the sector pointing to evidence that in many countries the sector is expanding rather than declining the issues associated with measuring the sector s economic contribution are discussed followed by empirical assessments for several countries and regions the distributional impact of non farm earnings is examined and it is found that a pro poor impact while by no means inevitable can be considerable the sector s trajectory over time in different settings is reviewed and the scope for and experience of various policy interventions is discussed

monetary policy and financial imbalances facts and fiction following the financial crisis many have argued that monetary policy should lean against asset price increases and that deviations of credit and asset prices from trend can be used to capture financial imbalances we study quarterly data spanning 1986 2008 for a sample of 18 countries and argue that such measures contain little information useful for forecasting the future economic conditions this casts doubts on the leaning against the wind view we also argue that tightening monetary policy in response to such imbalances are likely to depress real growth substantially that finding however is sensitive to the lucas critique katrin assenmacher wesche and stefan gerlach

effect of off farm income on smallholder commercialization panel evidence from rural households in ethiopia this article investigates how off farm income affects crop output market participation decisions and marketed surplus of smallholder farmers in ethiopia a double hurdle model is estimated using three waves of panel data from the ethiopian rural household survey unobserved heterogeneity is controlled for using a correlated random effect procedure and potential endogeneity of explanatory variables using a control function approach the results show that off farm income has no significant influence on household crop output market participation however conditional on market participation additional off farm earnings negatively affect the marketed surplus this indicates that farmers use off farm earnings for consumption rather than for investment in agricultural production policy measures that promote rural investment may help increase returns to labor for land poor households participating in off farm work in the process of agricultural commercialization

introduction to the special issue on the role of nonfarm income in poverty reduction evidence from asia and east africa in this special issue we present seven studies that collectively attempt to investigate the role of non farm income in long term and short term poverty reduction in asia and africa the first four studies out of the seven use long term panel data over two decades in the philippines thailand bangladesh and india these studies show drastic increases in non farm income shares and corresponding declines in poverty levels over time especially in the philippines and thailand education levels of household members and returns to education also increased significantly in these countries the remaining three studies use cross sectional and short term panel data from ethiopia kenya and uganda these african studies show high proportions of poor households and low shares of non farm income that are somewhat comparable to the situation in the 1980s described in the asian studies without the green revolution that provided stable farm income and potential financial resources to invest in children education in asia it is not clear if african farm households can follow the asian examples

rural livelihoods and poverty reduction strategies in four african countries this paper compares and contrasts rural livelihoods in uganda kenya tanzania and malawi with a view to informing rural poverty reduction policies within poverty reduction strategy plans prsps low household incomes in rural areas of all countries are associated with low land and livestock holdings high reliance on food crop agriculture and low monetisation of the rural economy these adverse factors are in some instances made more difficult by land sub division at inheritance declining civil security in rural areas deteriorating access to proper agronomic advice and inputs and predatory taxation by decentralised district councils better off households are distinguished by virtuous spirals of accumulation typically involving diverse livestock ownership engagement in non farm self employment and diversity of on farm and non farm income sources lessons for prsps centre on the creation of a facilitating rather than blocking public sector environment for the multiplication of non farm enterprises seeking creative solutions to the spread of technical advice to farmers and examining critically the necessity for and impact of tax revenue collection by district councils on rural incomes and enterprise

time series decomposition and measurement of business cycles trends and growth cycles abstract a study of business cycles does not require trend estimation and elimination but a study of growth cycles does major cyclical slowdowns and speedups deserve to be analyzed but the needed time series decomposition presents difficult problems mainly because trends and cycles influence each other we compare cyclical movements in levels deviations from trend and smoothed growth rates for both the quarterly real gdp and the monthly u s coincident index using the phase average trend pat then we compare alternative trend estimates deterministic and stochastic linear and nonlinear and the corresponding series of deviations from these trends we discuss how the resulting estimates differ for u s growth cycles in the post world war ii period the results of pat show great similarity to the results obtained with the hodrick prescott local linear trend band pass filtering methods

global banks and crisis transmission abstract we study the effect of financial integration through banks on the transmission of international business cycles in a sample of 18 20 developed countries between 1978 and 2009 we find that in periods without financial crises increases in bilateral banking linkages are associated with more divergent output cycles this relation is significantly weaker during financial turmoil periods suggesting that financial crises induce co movement among more financially integrated countries we also show that countries with stronger direct and indirect financial ties to the u s experienced more synchronized cycles with the u s during the recent 2007 2009 crisis we then interpret these findings using a simple general equilibrium model of international business cycles with banks and shocks to banking activity the model suggests that the relation between integration and synchronization depends on the type of shocks hitting the world economy and that shocks to global banks played an important role in triggering and spreading the 2007 2009 crisis

monetary policy and the global housing bubble what caused the housing boom of the 2000s a number of researchers have suggested that loose monetary policy during the first half of the 2000s was a primary cause of the substantial run up in house prices in many countries however using a common statistical approach we find that monetary policy was not the main factor that should not be surprising although low interest rates raise house prices the increase in prices during the mid 2000s was much larger than the historical relationship between the two variables would suggest instead we investigate further the link between the marked loosening in terms and standards for mortgage credit and the most rapid increases in house prices this link provides some evidence for a story where credit provision and the demand for housing fed on each other and helped spur the housing boom our work suggests a greater role for macroprudential regulation rather than monetary policy in managing asset price booms jane dokko brian m doyle michael t kiley jinill kim shane sherlund jae sim and skander van den heuvel

leading economic indicators new approaches and forecasting records preface 1 editors introduction part i new concepts and methods 2 toward a theory of leading indicators frank de leeuw 3 a time series framework for the study of leading indicators salih n neftci 4 a probability model of the coincident economic indicators james h stock and mark w watson 5 an international application of neftci s probability approach for signalling growth recessions and recoveries using turning point indicators michael p niemira 6 on predicting the stage of the business cycle roy h webb 7 bayesian methods for forecasting turning points in economic time series sensitivity of forecasts to asymmetry of loss structures arnold zellner and chansik hong 8 new developments in leading economic indicators geoffrey h moore part ii forecasting records and methods of evaluation 9 forecasting cyclical turning points the record in the past three recessions stephen k mcnees 10 turning point predictions errors and forecasting procedures hermon o stekler 11 forecasting peaks and troughs in the business cycle on the choice and use of appropriate leading indicator series stephen j silver 12 using a consensus of leading economic indicators to find right ball park for real gnp forecasts edward f renshaw 13 some australian experience with leading economic indicators allan p layton 14 turning point prediction with the composite leading index an exante analysis francis x diebold and glenn d rudebusch 15 forecasting recessions under the gramm rudman hollings law victor zarnowitz and geoffrey h moore 16 leading indicators of inflation howard l roth part iii new economic indicators 17 commodity prices as a leading indicator of inflation james m boughton and william h branson 18 a leading indicator of inflation based on interest rates susmita dasgupta and kajal lahiri 19 using composite leading indicators of consumption to forecast sales and to signal turning points in stock market michael p niemira 20 economic indicators for australia s service sector ernst a boehm 21 purchasing management survey data their value as leading indicator philip a klein and geoffrey h moore 22 an agenda for inventories input to leading composite index feliks tamm index

let s take a break trends and cycles in us real gdp abstract trend cycle decompositions for us real gdp such as the unobserved components models the beveridge nelson decomposition the hodrick prescott filter and others yield very different cycles which bear little resemblance to the nber chronology ascribes much movements to the trend leaving little to the cycle and some imply a negative correlation between the noise to the cycle and the trend we argue that these features are artifacts created by the neglect of a change in the slope of the trend function once this is accounted for all methods yield the same cycle with a trend that is non stochastic except for a few periods around 1973 the cycle is more important in magnitude than previously reported and it accords well with the nber chronology our results are corroborated using an alternative trend cycle decomposition based on a generalized unobserved components models with errors having a mixture of normals distribution for both the slope of the trend function and the cyclical component

sequential signals of recession and recovery this paper describes a sequential procedure for identifying the beginning and ending dates of business cycle recessions as promptly and accurately as practicable its origin lies in a study in progress for the economic development administration eda u s department of commerce which deals with the problem of designing and testing an efficient trigger formula for public works expenditures with the aid of a system of cyclical indicators however the proposed approach can be applied much more broadly to any temporary countercyclical policy program on the national level federal policy programs of job creation through public works or public service employment have been repeatedly called countercyclical without in fact being so most such programs came into effect much too late to counter the cyclical early and confirming signals of business cycle peaks and troughs are produced sequentially on a current basis by a system of monitoring smoothed rates of change in the composite indexes of leading and coincident indicators evidence is offered that the system would have identified each of the peaks and troughs of u s business cycles since 1949 without undue delays and false alarms countercyclical policies activated and deactivated by such signals would have desirable timing properties

business cycle durations and postwar stabilization of the u s economy average postwar expansions are twice as long as prewar expansions and contractions are one half as long this paper investigates three possible explanations the first explanation is that shocks to the economy have been smaller in the postwar period the second explanation is that the composition of output has shifted from very cyclical sectors to less cyclical sectors the third explanation is that the apparent stabilization is largely spurious and is caused by differences in the way that prewar and postwar business cycle reference dates were chosen by the national bureau of economic research the evidence presented in this paper favors this third explanation copyright 1994 by american economic association

trade policy issues and empirical analysis interest in u s trade policy has been stimulated in recent years by the massive american trade deficit by the belief that intervention by foreign governments in international markets has given other countries a competitive edge over the united states and by concern about the increase in protectionism among industrial countries in turn major analytical developments in international economics have revolutionized trade theory broadening its scope both by introducing in a more formal manner such concepts as imperfect competition increasing returns product differentiation and learning effects and by including the study of political and economic factors that shape trade policy decisions this collection of papers the result of a conference held by the nber applies these new trade theories to existing world cases and also presents complementary empirical studies that are grounded in more traditional trade theories the volume is divided into four parts the papers in part 1 consider the problem of imperfect competition empirically assessing the economic effect of various trade policies introduced in industries in which the new trade theory seems to apply those in part 2 isolate the effects of protection from the influences of the many economic changes that accompany actual periods of protection and also examine how the effects from exogenous changes in economic conditions vary with the form of protection part 3 provides new empirical evidence on the effect of foreign production by a country s firms on the home country s exports finally in part 4 two key bilateral issues are analyzed recent u s japanese trade tensions and the incident involving the threat of the imposition of countervailing duties by the united states on canadian softwood lumber

is free trade passe abstract if there were an economist s creed it would surely contain the affirmations i understand the principle of comparative advantage and i advocate free trade yet the case for free trade is currently more in doubt than at any time since the 1817 publication of ricardo s principles of political economy and this is due to changes that have recently taken place in the theory of international trade while new developments in international trade theory may not yet be familiar to the profession at large they have been substantial and radical in the last ten years the traditional constant returns perfect competition models of international trade have been supplemented and to some extent supplanted by a new breed of models that emphasizes increasing returns and imperfect competition these new models call into doubt the extent to which actual trade can be explained by comparative advantage they also open the possibility that government intervention in trade via import restrictions export subsidies

real business cycles and the test of the adelmans abstract this paper conducts a modern variant of the test proposed and carried out by adelman and adelman 1959 using the methods developed by burns and mitchell 1946 we see if we can distinguish between the economic series generated by an actual economy and those analogous artificial series generated by a stochastically perturbed economic model in the case of the adelmans the model corresponded to the klein goldberger equations in our case the model corresponds to a simple real business cycle model the results indicate a fairly high degree of coincidence in key economic aggregates between the business cycle characteristics identified in actual data and those found in our simulated economy

does detrending matter for the determination of the reference cycle and the selection of turning points we examine the sensitivity of turning points classification to detrending and compare the implied cycles to those derived by nber or doc researchers two dating rules are considered turning point dates are broadly insensitive to detrending with one dating rule but not the other and many procedures generate false alarms and miss several common turning points with the latter one amplitude and duration properties are also sensitive detrending and dating rules the hodrick and prescott and a frequency domain filters are best in mimicing nber and doc cycles regardless of the dating rule used