a theory of retail pricing until recently the retail enterprise the shop has been comparatively neglected by economic theorists partly because they assigned little role to retailing the growth of interest in the problem in recent years reflects the development of models of imperfect information and the revival of interest in location theory pricing theory for the retail enterprise however remains a neglected area after surveying existing models of retailing the paper concentrates on the idea that the shop saves its customers costs by assembling goods in one place this introduces an essential non convexity and importantly affects the conditions under which shops compete with each other and the constraints on their price setting under the admittedly unrealistic assumption of full buyer information a theory of retail pricing is developed retail prices are frequently regarded as exceptions both to the law of costs and generally to every rational process of price formation which is all the more remarkable since these prices are the only ones which are of direct interest to the consumer and which are directly influenced by consumption knut wickselt

panel evidence on the ability of oil returns to predict stock returns in the g7 area abstract most studies on the ability of oil returns to predict stock returns use time series data for multiple countries the data therefore have a panel structure yet oddly enough this structure is never really exploited in the estimation but researchers tend to instead rely on country by country application of existing time series methods this practice is wasteful because it does not explore all available information the present paper can be seen as a reaction to this the purpose is to reevaluate the existing empirical evidence for the g7 countries using state of the art panel data techniques the results show that for the panel as a whole lagged oil price returns has a significantly negative effect on current stock returns the evidence at the individual country level is less strong and varies depending on the extent to which the countries rely on oil import

location and attendance in major league baseball this study uses a travel cost model to analyse the attendance impacts on major league baseball mlb of the closest substitute mlb team it is found that the closer two teams are the lower attendance is at each team relative to two teams that are farther apart in addition when a new team moves into the area of an existing team there is an additional initial reduction in attendance for the incumbent team this has implications for actions aimed at changing the number of teams in mlb either by contraction or by possible antitrust approaches that would increase the number of teams especially in megalopolis markets further and consistent with past demand studies pricing is in the inelastic portion of gate demand and fan loyalty is a significant contributor to the estimation of gate attendance

sensitivity analyses of anomalies in developed stock markets abstract the literature on anomalies in developed stock markets produces no consensus on specification this study uses extreme bound analysis eba to evaluate the robustness of 15 stock return anomalies given data covering 16 developed markets from may 1984 to march 1999 two factors are sturdy according to the extreme decision rule in the panel design d p and momentum under a less stringent eba criterion long run lagged returns country risk and the january effect are also robust time series eba for individual markets produces one robust result according to relaxed decision rules across a majority of cases long run government bond yields

financial intermediation and endogenous growth an endogenous growth model with multiple assets is developed agents who face random future liquidity needs accumulate capital and a liquid but unproductive asset the effects of introducing financial intermediation into this environment are considered conditions are provided under which the introduction of intermediaries shifts the composition of savings toward capital causing intermediation to be growth promoting in addition intermediaries generally reduce socially unnecessary capital liquidation again tending to promote growth

yield curves and international equity returns abstract this paper examines empirical evidence on the international transmission of shocks to financial asset markets the relationships between yield curves and risk premiums of stocks for eight industrialized countries are examined only the stocks of the three largest economies germany japan and the usa show negative risk premiums during periods preceded by the inverted yield curves of their respective government bonds this is not the case for stocks of the five smaller countries in the sample however four of the five smaller countries have negative risk premiums in periods preceded by inverted german or us yield curves this is consistent with the view that a world risk factor captured by major country yield curves affects the pricing of assets in smaller economies the consumption capm is unable to explain the phenomenon of the negative risk premiums in almost all cases the conditional covariance between consumption growth and the risk premiums is statistically indifferent from zero

generalized q models for investment the authors extend the q theory of investment to allow for adjustment costs for labor under the additional assumption that the firm is a monopolistic competitor in the output market the issue of nonconstant returns to scale is also discussed the authors show that the standard q model is a special case of a more general model involving testable parameter restrictions estimates for the u s manufacturing sector suggest that the departure from the assumption of perfect competition and lack of adjustment costs for labor receive empirical support in the data copyright 1991 by mit press

stock market returns and inflation evidence from other countries this paper investigates the relation between common stock returns and inflation in twenty six countries for the postwar period our results do not support the fisher hypothesis which states that real rates of return on common stocks and expected inflation rates are independent and that nominal stock returns vary in one to one correspondence with expected inflation there is a consistent lack of positive relation between stock returns and inflation in most of the countries

competitive price discrimination we model firms as supplying utility directly to consumers the equilibrium outcome of competition in utility space depends on the relationship u between profit and average utility per consumer public policy constraints on the deals firms may offer affect equilibrium outcomes via their effect on u f rom this perspective we examine the profit utility and welfare implications of price discrimination policies in an oligopolistic framework we also show that an equilibrium outcome of competitive nonlinear pricing when consumers have private information about their tastes is for firms to offer efficient two part tariffs

price discrimination by a many product firm determining the optimal selling strategy for a multiproduct firm facing consumers with unknown tastes is a difficult task this paper aims to show how almost optimal nonlinear tariffs can often be found when the number of products becomes large

banking sector development and interest rate volatility in emerging economies over the last decades macroeconomic stability is said to be one of the major concerns of emerging economies financial sector as a core of macroeconomic stability has been under close consideration of policy makers the relationship between interest rate uncertainty and banking sector development as one of the most important indicators of financial sector development especially for emerging economies has not received enough attention in the literature perhaps this article is the most comprehensive study that investigates the relationship between interest rate uncertainty and banking sector development for a large group of emerging economies to do this the short run and long run models using a bounds testing approach to cointegration for 12 emerging economies over the period 1980 2011 have been developed estimated results from all models indicate that interest rate uncertainty has significant effect on banking sector development in both short run and long run phenomena in the majority of countries

stock returns inflationary expectations and real activity this paper tests the fisher hypothesis that real stock returns are independent of inflationary expectations on data for the finnish economy a significant negative relationship is found when stock returns are regressed on the rate of inflation a possible explanation is that higher inflation may proxy a drop in the money demand induced by a lower growth in real activity which simultaneously implies a drop in expected future profits and thus a drop in stock prices to test this hypothesis actual growth in real activity is included in the regression equation for aggregate stock returns significant negative coefficients are however still obtained for expected as well as unexpected inflation it is further shown that these relations are quite insensitive to the specification of the expectations formation mechanism

multiproduct nonlinear pricing with multiple taste characteristics we analyze optimal multiproduct nonlinear prices in the case where consumer tastes are characterized by more than one taste parameter we present conditions under which the optimal nonlinear price schedule can be computed by finding optimal price schedules separately for each market if so they are unbundled if not they are bundled bundling is weakly superior to unbundling and is strictly superior when a condition that we term uniform ordering of demand curves is weakly violated with uniform ordering of demand curves multiproduct nonlinear prices have the same features as single product ones without this condition it is easy to construct examples that contradict some well known results from the standard literature in mechanism design

financial control in the transition from classical socialism to a market economy the transition from socialism to capitalism poses severe problems of financial management that have yet to be resolved in principle let alone in practice one unfortunate consequence is continual financial turmoil as socialist economies of the soviet union and eastern europe attempt reform inflation either open or repressed first accompanies and then undermines attempts to decentralize decision making to dampen inflation and prevent economic chaos even reform governments may be provoked to reintervene by seizing the financial assets of enterprises reinstituting price controls or commandeering outputs through state orders and similar devices but why should the transition from central planning to a market economy be inflationary understanding the system of financial control in the preexisting regime of classical socialism is the key to understanding what might go wrong in the transition under classical socialism all the means of production industrial and agricultural are state owned output targets input levels wages and prices are all set by a stalinist system of central planning accordingly i shall first identify 1 how domestic fiscal and monetary processes interact with and complement central planning in the classical socialist economy and then discuss 2 why this mechanism for securing domestic financial control and avoiding inflation under classical socialism tends to break down when decentralization begins and central planning is weakened the discussion will then turn to 3 how in a more deliberate transition domestic tax and monetary arrangements might be managed to keep the average price level stable as the market prices of individual goods and services become free to fluctuate after sufficient domestic financial control is secured

stock prices asset portfolios and macroeconomic variables in ten european countries abstract this paper investigates the relationship between stock indices asset portfolios and macroeconomic variables in ten european countries it is shown that employment imports inflation and interest rates are inversely related to stock prices expectations about future real activity measures for money and the u s yield curve are positively related to stock prices a portfolio of european stock indices was constructed and it is shown that this portfolio is the variable that most strongly explains the variation in the stock prices the associations between stock prices and macroeconomic variables are shown to be strongest in germany the netherlands switzerland and the united kingdom there is a high degree of similarity between the effects in the first three of these countries in several instances the stock prices are related to historic value of economic variables indicating that predictive models can be constructed

on testing the arbitrage pricing theory inter battery factor analysis this paper tests the arbitrage pricing theory apt by estimating the factor loadings that are consistent between two industry groups of securities one of the pitfalls in the study by roll and ross is that the factors estimated in one group may not be the same with the factors estimated in another group this raises some concerns on the acceptability of their conclusions for our study we employ inter battery factor analysis which enables us to estimate factor loadings by constraining the factors to be the same between two different groups our results show that there seem to be five or six inter group common factors that generate daily returns for two industry groups of securities and these inter group common factors do not seem to depend on the size of groups also based on our cross sectional tests on the risk premia we conclude that the apt should not be rejected the arbitrage pricing theory apt introduced by ross 35 36 provides another model for explaining the relationship between return and risk the apt may be conceived as an alternative to the well known capital asset pricing model capm introduced by sharpe 39 lintner 27 and mossin 29 and later modified by black 1 both models assert that every asset must be compensated only according to its systematic risk one of the major differences is that in the capm the systematic risk of an asset is defined to be the covariability of the asset with the market portfolio whereas in the apt the systematic risks are defined to be the covariability with not only one factor but also possibly with several economic factors another difference is that the capm requires the economy to be in equilibrium whereas the apt requires only that the economy has no arbitrage opportunities note that the absence of arbitrage condition is necessary but not sufficient for the economy to be in equilibrium thus the apt is a more fundamental relationship than the capm in the sense that a rejection of the apt implies the rejection of the capm but not vice versa despite numerous attempts the capm has not been satisfactorily tested and furthermore roll s critique 32 33 casts serious doubts on the testability of the capm itself roll argues that the linear relationship between return and risk will hold for any efficient portfolio thus unless the market portfolio is observed a test of the capm using ex post data is ambiguous it results only in testing the

does industrial structure explain the benefits of international diversification abstract we examine the influence of industrial structure on the cross sectional volatility and correlation structure of country index returns for 12 european countries between 1978 and 1992 we find that industrial structure explains very little of the cross sectional difference in country return volatility and that the low correlation between country indices is almost completely due to country specific sources of return variation diversification across countries within an industry is a much more effective tool for risk reduction than industry diversification within a country

the relation between stock prices and inflationary expectations the international evidence this paper provides empirical evidence on the relation between stock returns and inflationary expectations for nine countries over the period 1971 80 the fisherian assumption that real returns are independent of inflationary expectations is soundly rejected for each major stock market of the world using interest rates as a proxy for expected inflation our data provide consistent support for the geske and roll model whose basic hypothesis is that stock price movements signal negative revisions in inflationary expectations finally a weak real interest rate effect was found for some of these countries

let s get real a factor analytical approach to disaggregated business cycle dynamics this paper develops a method for analysing the dynamics of large cross sections based on a factor analytic model we use law of large numbers arguments to show that the number of common factors can be determined by a principal components method the economy wide shocks can be identified by means of simple structural var techniques and that the parameters of the unobserved factor model can be estimated consistently by applying ols equation by equation we distinguish between a technological and a non technological shock identification is obtained by minimizing the negative realizations of the technology shock empirical results on 4 digit industrial output and productivity for the u s economy from 1958 to 1986 show that 1 at least two economy wide shocks both having a long run effect on sectoral output are needed to explain the common dynamics 2 although the technological shock accounts for at least 50 of the aggregate dynamics of output it cannot by itself explain dynamics at business cycle frequencies 3 sector specific shocks explain the main bulk of total variance but generate mainly high frequency dynamics 4 both the technological and the non technological component of output show a peak for positive sectoral comovements of output at business cycle frequencies 5 technological shocks are strongly correlated with the growth rates of the investment in machinery and equipment sectors and their inputs many interesting questions about cyclical fluctuations and economic growth can be answered only by studying the dynamic behaviour of sectoral variables when data contain information on time for a large cross section of sectors traditional econometric techniques used in the macroeconomic literature such as vector autoregressive var and vector autoregressive moving average varma models are not appropriate since they require the estimation of too many parameters this is why new methods which allow for the reduction of the parameter space need to be developed the objective of this paper is both methodological and descriptive at the methodological level we develop a simple framework for the dynamic analysis of large cross sections the basic model is a dynamic factor analytic model as in sargent and sims 1977 the sectoral variables are decomposed into two unobservable components a common component driven by macroeconomic shocks and a purely sectoral component when

a critical reexamination of the empirical evidence on the arbitrage pricing theory this paper demonstrates that the roll and ross rr and other previously published tests of the apt are subject to several basic limitations there is a general nonequivalence of factor analyzing small groups of securities and factor analyzing a group of securities sufficiently large for the apt model to hold it is found that as one increases the number of securities the number of factors determined increases this increase in the number of factors with larger groups of securities cannot readily be explained by a distinction between priced and nonpriced risk factors as it is impermissible to carry out tests on whether a given risk factor is priced using factor analytic procedures the apt model as exposited by ross 17 18 and extended by huberman 9 has provided the basis of an extensive literature as for example brown and weinstein 1 chen 3 hughes 10 ingersoll 11 jobson 12 reinganum 15 roll and ross rr 16 and shanken 17 to mention but a few it has also been treated in a more general context by chamberlain and rothschild 2 our purpose here is not to comment on this collection of papers many of which are unpublished but to reexamine the evidence presented by rr and point out major pitfalls involved in the empirical methodology employed by them and others who have followed their lead rr claim that on theoretical and more importantly on empirical grounds arbitrage pricing theory apt is an attractive alternative to the capital asset pricing model capm the apt it is argued requires less stringent and presumably more plausible assumptions is more readily testable since it does not require the measurement of the market portfolio and may be better able to explain the anomalies found in the application of the capm to asset returns the acceptability of the apt like that of the capm or any other theory ultimately depends on its ability to explain the relevant empirical evidence our subsequent discussion will show that many of the prqblems associated with the capm are also present in the apt context and that its ability to explain the relevant empirical evidence is not markedly superior moreover it raises questions not only about the rr and related empirical investigations of the apt but also about the testability of that theory in the present state of the art a major part of the problem results from the necessity to break down the universe being analyzed through the apt model this is forced upon the investigator by the fact

nonlinear pricing with random participation the canonical selection contracting programme takes the agent s participation decision as deterministic and finds the optimal contract typically satisfying this constraint for the worst type upon weakening this assumption of known reservation values by introducing independent randomness into the agents outside options we find that some of the received wisdom from mechanism design and nonlinear pricing is not robust and the richer model which allows for stochastic participation affords a more general empirical specification we develop a multidimensional methodology for addressing this class of problems providing two important applications to nonlinear pricing first with nonlinear pricing by a monopolist the familiar nodistortion at the top result persists but in tandem with the surprising conclusion that there is either no distortion at the bottom or bunching second in a simple model of product differentiated duopolists competing with nonlinear pricing we show that generally the duopoly outcome is qualitatively similar to the monopoly outcome however when marginal costs are symmetric and competition is sufficiently intense distortions disappear and the equilibrium outcome takes a remarkably simple form efficient quality allocations with cost plus fee pricing

financial system architecture this article builds a theory of financial system architecture we ask what is a financial market what is a bank and what determines the economic role of each starting with basic assumptions about primitives the types of agents and the nature of the informational asymmetries we provide a theory that explains which agents coalesce to form banks and which trade in the capital market it is shown that borrowers of higher observable qualities access the financial market moreover a financial system in its infancy will be bank dominated and increased financial market sophistication diminishes bank lending article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

reform in eastern europe how can the new governments of eastern europe succeed in moving from centrally planned to freemarket economies this incisive report identifies and describes the major policy choices to be made and discusses what will work and what will not reform in eastern europe provides a comprehensive easily read statement of reform policy that stands in the mainstream of modern western economics based on their experience with stabilization policies in other countries the authors show how eastern europe can reduce unemployment during the painful adjustment process create effective and socially acceptable mechanisms to subject enterprises to market discipline and replace barter trade under cmea with market based international trade

stock returns and output growth in emerging and advanced economies abstract this paper studies the correlation between output growth and lagged stock returns in a panel of emerging market economies and advanced economies it finds that the proportion of countries in which this correlation is significant is the same for emerging market economies as it is for advanced economies using yearly data and somewhat lower using quarterly data asset prices therefore seem to contain valuable information to forecast output also in emerging market economies moreover the paper finds that the strength of the correlation between output growth and lagged stock returns is significantly related to a number of stock market characteristics such as a high market capitalization to gdp ratio and less robustly english legal origin and the number of listed domestic companies and initial public offerings

country v sector effects in equity returns and the roles of geographical and firm size coverage since roll the journal of finance 47 1 3 41 1992 and heston and rouwenhorst journal of financial economics 36 3 27 1994 there has been a debate whether country factors in international stock returns are typically more variable than sector factors the addition of emerging markets ems does boost the ratio of country factor variance relative to industry factor variance these markets have a higher variability but are also less related to global factors investigating to what extent this phenomenon can be tracked down to the impact of adding more small firms we find the following 1 small firms do have higher volatility but only after controlling for country and sector affiliation 2 small firms do have weaker sector affinity as expected 3 small firms unexpectedly have weaker local market sensitivities than large firms facts 2 and 3 mean that adding more small firms to the data base has a diversifying effect on both the sector and country factor variance while the impact on sector variance is larger the net effect turns out to be tiny 4 adding emerging markets has a very marked impact on the variance ratio in fact the addition of small stocks to the sample hardly dents the effect of adding ems thus the role of ems cannot be reduced to just a small firm phenomenon

rational expectations and macroeconomic forecasts the article presents extensive results from testing for bias and serially correlated errors in a collection of time series of quarterly multiperiod forecasts for six variables including real gnp growth inflation and unemployment the analysis covers responses by 79 frequent participants in economic outlook surveys conducted regularly since 1968 it shows much greater incidence of apparently systematic errors for inflation than for the other variables also the tests are more favorable to composite group forecasts than to most of the individual forecast sets

should asean 5 monetary policy makers act pre emptively against stock market bubbles stock market rises and asset price inflation in asean economies have raised the question of whether monetary authorities in these economies should act pre emptively against these rising trends to prevent impending financial crises using structural vector error correction models svecms which incorporate mixed data characteristics we examine the effects and interactions between monetary policy and stock market shocks for singapore malaysia thailand indonesia and the philippines the results suggest that monetary policy focused on the stock market detracts from price stability objectives in particular because containing a stock market bubble may inadvertently depress output and inflation

the association between financial accounting measures and real economic activity a multinational study abstract we investigate how cross country differences in financial accounting standards affect the relation between financial accounting earnings and real economic value relevant events that underlie those earnings based on previous research and economic theory we hypothesize that because of differences in legal systems and the demand for accounting information differences in legal protection for external shareholders and differences in the degree of tax conformity in our sample countries accounting earnings in the uk and the us will be more closely related to underlying economic activity than will accounting earnings in france and germany empirical results are generally consistent with our hypothesis

national versus global influences on equity returns simple factor models of worldwide equity returns are used to explore the level and trend in international capital market integration global influences and national influences are of roughly equal importance in explaining the common movements in equity returns significant evidence indicates a trend toward increasing integration within the european union but not worldwide

the pricing of sports events do teams maximise profit a model of price setting behaviour by national hockey league teams based on the assumption of profit maximization is developed estimated and tested the model implies parameter restrictions across equations of a two equation simultaneous nonlinear econometric model tested by a likelihood ratio test and implies restrictions on the first and second derivatives of the revenue function tested with wald tests the results in large measure support the hypothesis that hockey teams are profit maximizers in contrast to some suggestions in the literature the analysis provides an attractive example of the potential of sports data for testing behavioural hypotheses in economics

the association between stock returns and foreign gaap earnings versus earnings adjusted to u s gaap abstract this study examines the association between stock returns and foreign gaap earnings versus earnings adjusted to u s gaap using a sample of foreign firms with common stock or american depositary receipt adr traded in u s exchanges we compare the returns earnings relations between u s and foreign gaap based earnings results based on the ja test indicate that earnings based on foreign gaap are more closely associated with contemporaneous stock returns than earnings reconciled to u s gaap we find evidence that our results may be driven by institutional factors which are specific to foreign markets

an examination of the relationship between australian industry equity returns and expected inflation this paper analyses the relationship between inflation and equity returns in australia over the period january 1974 to march 1996 analysis is based on monthly and quarterly data using value weighted equity indices at both the aggregate market and industry level three price indices the consumer price index cpi quarterly and the manufactured materials used index mmu and the manufacturing articles produced index map both monthly and quarterly are used to measure inflation results provide little evidence of the statistically significant negative relationship observed in the us for the full study period analysis is also conducted on three subperiods monetary targeting july 1976 january 1985 checklist approach february 1985 december 1989 and anti inflation january 1990 march 1996 at the market level the anti inflation subperiod does provide some evidence of a negative relationship between inflation and equity returns though statistical significance is not apparent with quarterly tim

international arbitrage pricing theory an empirical investigation in this paper we test the arbitrage pricing theory apt in an international setting inter battery factor analysis is used to estimate the international common factors and the chow test is used in testing the validity of the apt our inter battery factor analysis results show that the number of common factors between a pair of countries ranges from one to five and our cross sectional test results lead us to reject the joint hypothesis that the international capital market is integrated and that the apt is internationally valid our results however do not rule out the possibility that the apt holds locally or regionally in segmented capital markets finally the basic results of both the inter battery factor analysis and the cross sectional tests are largely invariant to the nume raire currency chosen numerous authors notably solnik 21 grauer litzenberger and stehle 11 and stulz 24 have derived various versions of the international asset pricing model iapm under alternative views of the structure of international capital markets however only a few serious attempts have been made to test various versions of the iapm these tests are largely inconclusive see solnik 20 and stehle 23 apart from the problem stressed by roll 16 of identifying the world market portfolio previous tests of the iapms suffer from the technical problem of aggregating assets of national investors using different numeraire currencies differences in the numeraire arise from differences in consumption baskets in an environment characterized by exchange rate uncertainty in a fruitful attempt to extend the arbitrage pricing theory apt of ross 18 to an international setting solnik 22 derives an international arbitrage pricing theory which is largely devoid of the aforementioned difficulties and thus more amenable to empirical testing 1 as shown by solnik testability of the apt in an

multiproduct pricing in major league baseball a principal components analysis the empirical analysis of multiproduct pricing suffers from a lack of clear theoretical guidance and appropriate data limitations which often render traditional regression based analyses impractical this paper analyzes ticket parking and concession pricing in major league baseball for the period 1991 2003 using a new methodology based on principal components which allows inferences to be formed about the factors underlying price variation without strong theoretical guidance or abundant information about costs and demand while general demand shifts are the most important factor they explain only half of overall price variation also important are price interactions that derive from demand interrelationships between goods and the desire to maximize the capture of consumer surplus in the presence of heterogeneous demand

creation of financial markets in previously centrally planned economies abstract one of the key issues in reforming previously centrally planned economies is the creation of financial markets in the present paper the macroeconomic consequences of their introduction are investigated given the impossibility of the immediate introduction of a complete set of markets in the transition phase the second best theorem applies using an overlapping generation model it is shown that the existence of financial markets allows the choice of different combinations of growth and consumer s welfare given the existing trade off between these two targets financial markets can exist under different ownership schemes in the context of the model chosen it is shown that it is impossible to obtain unequivocal conclusions about the sequence of financial reforms and the optimal ownership scheme thus it is necessary to judge on a case by case basis and caution is suggested in the policy prescriptions

distributive politics and economic growth a crude distinction between economics and politics would be that economics is concerned with expanding the pie while politics is about distributing it in this paper we analyze the relationship between the two we focus on how an economy s initial configuration of resources shapes the political struggle for income and wealth distribution and how that in turn affects long run growth our main conclusion is that inequality is conducive to the adoption of growth retarding policies we derive this result from a simple political economy model of growth and present cross country evidence consistent with it the key feature of our model is that individuals differ in their relative factor endowments we distinguish between two types of factors an accumulated factor called capital and a nonaccumulated factor called labor growth is driven by the expansion of the capital stock which is in turn determined by individual saving decisions long run growth is endogenous as the aggregate production function is taken to be linearly homogeneous in capital and productive government services taken together the provision of government services is financed by a tax on capital because government services are productive a small tax on

the relative importance of common factors across the european equity markets abstract in this paper we try to shed additional light on the question of integration or segmentation of european equity markets by studying the statistical relevance of some intuitively appealing international factors of return the relevance of these factors is also investigated through time in order to evaluate a possible increase in market integration over the recent past

international portfolio diversification currency industry and country effects revisited we examine the relative importance of country industry world market and currency risk factors for international stock returns our approach focuses on testing the mean variance efficiency of the various factor portfolios an unconditional analysis does not show significant differences between country industry and world portfolios nor any role for currency risk factors however when we allow expected returns volatilities and correlations to vary over time we find that equity returns are mainly driven by global industry and currency risk factors we propose a novel test to evaluate the relative benefits of alternative investment strategies and find that including currencies is critical to take full advantage of the diversification benefits afforded by international markets

consumption and capital market imperfections an international comparison the excess sensitivity of consumption to current income fluctuations is higher in countries where consumers borrow less low levels of consumer debt can result either from capital market imperfections or from a low demand for loans the evidence suggests that the former view is more appropriate than the latter and thus supports the hypothesis that excess sensitivity may be attributed to liquidity constraints rather than to other factors copyright 1989 by american economic association

short term interest rates as predictors of inflation on testing the hypothesis that the real rate of interest is constant in an innovative and provocative paper in this review eugene fama presents evidence which appears to be consistent with the joint hypothesis that the real rate of interest ignoring taxes is a constant and that the market for u s treasury bills is efficient in the sense of embodying rational expectations those findings are strikingly at variance with a long list of previous studies which seemed to support the view that the real rate of interest varies over time and can be related to economic variables such as real output monetary policy and so forth 2 the methodologies which lead to these contradictory conclusions are quite different previous studies had followed the lead of irving fisher by relating nominal interest rates to distributed lags on past rates of inflation 3 these distributed lags are generally interpreted as approximations to the market s expected rate of inflation and thus any remaining variation is attributed to variation in the real rate 4 fama s methodology on the other hand draws on the fact that the difference between the market interest rate and the subsequently observed rate of inflation the ex post real interest rate consists by definition of the ex ante real interest rate plus a pure forecasting error 5 the hypothesis of market efficiency implies that these forecasting errors must be serially random thus observing ex post real rates is equivalent to observing ex ante real rates with random measurement error these errors of course confound the problem of identifying variation in the ex ante real rate in this paper we will argue that the relative magnitude of these measurement errors is such that the tests carried out by fama were not powerful enough to reject the joint hypothesis that the ex ante real rate is a constant and expectations are rational more powerful tests which are presented in this paper using the same data do lead to rejection of that hypothesis of course rejection