Application of hidden Markov switching moving average model in the stock markets: Theory and empirical evidence

In this paper, we propose a hidden Markov switching moving average model (MS-MA model) to extend the moving average model when the dynamic process of stock returns is predictable. That is, hidden Markov chain can be utilized to better describe the stock return dynamics when moving averages are correlated. Based on the MS-MA model, a recursive method of EM algorithm for parameter estimation is proposed and a numerical analysis is demonstrated. Furthermore, we empirically test the hidden Markov chain model using Dow Jones thirty stocks' data. The empirical results show that the dynamic process of stock returns exhibits MS-MA property, meaning the moving averages of stock returns are correlated. Therefore, the MS-MA model allows us to better understand and to predict stock return stochastic process. This model also helps in pricing equity derivatives.     

Coordination and price shocks: an empirical analysis

This paper outlines a new technique, which makes optimal control in a stochastic minimum variance framework computationally feasible. The new approach is then used to evaluate gains to policy coordination in the context of a macroeconometric model for the G-3. More specifically, we consider policy responses to a temporary price shock in a single country and in multi-country cases. The results show that coordination brings about a striking improvement in the overall control of inflation and a reduction in output costs.     

Aggregation in macroeconomic models: an empirical input–output approach

The aggregation level of industries in the Danish macroeconomic model ADAM is examined using a new indicator of aggregation bias. The indicator is decomposed into contributions from the original industries, thereby clearly identifying the aggregation problems which caused the six industry groups of the older versions of ADAM to be disaggregated into the current 19 groups. An aggregation key minimizing the new bias indicator is found: from the microlevel of 64 industries, 18 ‘optimal’ industry groups are formed through ‘clustering’; these groups are very similar to the current ADAM groups. Altogether, the conclusions based on the new indicator closely resemble those reached through years of practical experience.     

Prostitution services: an exploratory empirical analysis

This study provides an empirical analysis of the market for some male prostitution services in the UK. Flexible working hours, part-time working, and multiple job holding are considered as important labour market characteristics in this service sector. Statistical models helping explain the provision of a deviant and a more mainstream sexual service is reported, utilizing cross-section data drawn from individual prostitute advertisements. The significance of various declared intrinsic endowments of the prostitutes are examined in relation to the offer of these services, including age, ethnicity, physique, and masculine demeanour.     

Estimation of an endogenous switching regression model with discrete dependent variables: Monte-Carlo analysis and empirical application of three estimators

The performances of alternative two-stage estimators for the endogenous switching regression model with discrete dependent variables are compared, with regard to their usefulness as starting values for maximum likelihood estimation. This is especially important in the presence of large correlation coefficients, in which case maximum likelihood procedures have difficulties to converge. Monte-Carlo simulations indicate that an estimator that corrects for conditional heteroskedasticity of the residuals is superior in almost all instances, and especially when maximum likelihood is problematic. This result is also obtained in an empirical example in which off-farm work participation equations of farm women are conditional on farm work participation status. First version received: July 1995/final version received: March 1998     

Sudden stops, financial frictions, and labor market flows: Evidence from Latin America

While the aggregate effects of sudden stops and international financial crises are well known, the disaggregated channels through which they work are not well explored yet. In this paper, using job flows from a sectoral panel dataset for four Latin American countries, we find that sudden stops are characterized as periods of lower job creation and increased job destruction. Moreover, these effects are heterogeneous across sectors: we find that when a sudden stop occurs, sectors with higher dependence on external financing experience lower job creation. In turn, sectors with higher liquidity needs experience significantly larger job destruction. This evidence is consistent with the idea that dependence on external financing affects mainly the creation margin and that exposure to liquidity conditions affects mainly the destruction margin. Overall, our results provide evidence of financial frictions being an important transmission channel of sudden stops and in the restructuring process in general.     

Financial system and technological catching-up: an empirical analysis

This paper explores the role of the financial system in technological catching-up in the expectation that financing mechanisms affect the production and the exports of new or “new to the market” commodities. We have developed indices of related export variety (REV) and of unrelated export variety (UEV) by using the informational entropy function for a sample of 97 countries using NBER & UN trade data for the period 1992–2005. We used these indices sequentially as dependent variables with the bank credit ratio and stock market capitalization ratio as independent variables. In addition, we include the education system, natural resources and four principal component factors characterizing the cost of doing business, political system, quality of governance and the degree of openness of the countries as control variables in our regressions. Our pooled regression models show that the financial system is an important determinant of both types of export variety for all countries but that, for the most successful developers, the banking system and the stock market play different roles, with the former being relatively more appropriate for REV and the latter for UEV. Such specialization of different forms of the financial system seems to confirm that stock markets are likely to be relatively more appropriate to fund the exploratory type of innovations which are required to increase UEV.     

Taxing capital flows: an empirical comparative analysis

Recent studies have analysed the impact of capital account opening on income growth, implicitly assuming that the various forms of foreign savings have similar effects. In fact, theoretical considerations suggest that the individual components of private capital inflows have different effects on growth. This paper analyses the link between income growth and private capital inflows. It presents system GMM estimates with annual observations from 1985 to 1996 for 72 countries. When full-sample results are checked for country and period changes, most of capital inflow series lose their ability to explain income growth. Bank flows stand as the sole source of foreign financing that displays a positive and robust correlation with growth.     

Evaluating currency crises: A Bayesian Markov switching approach

In this paper we examine the nature of a currency crisis. We do so by employing an out-of-sample forecasting exercise to analyse the Mexican crisis in 1994. Forecast evaluation was based on modern econometric techniques concerning the shape of forecaster’s loss function. We also extend the empirical framework suggested by Jeanne and Masson [Jeanne, O., Masson, P., 2000. Currency crises and Markov-switching regimes. Journal of International Economics 50, 327–350] to test for the hypothesis that the currency crisis was driven by sunspots. To this end we contribute to the existing literature by comparing Markov regime switching model with a time-varying transition probabilities with two alternative models. The first is a Markov regime switching model with constant transition probabilities. The second is a linear benchmark model. Empirical results show that the proxy for the probability of devaluation is an important factor explaining the nature of currency crisis. More concretely, when the expectation market pressure was used as a proxy of probability of devaluation, forecast evaluation supports the view that currency crisis was driven by market expectation unrelated to fundamentals. Alternatively, when interest rate differential is used as a proxy for probability of devaluation, currency crisis was due to predictable deterioration of fundamentals.     

Food consumption in urban China: an empirical analysis

This paper examines consumption patterns of urban households in China using aggregated household consumption data. A demand system comprising six commodities (rice,pork,vegetables,fish,eggs and fruits) is estimated using a two-stage budgeting procedure which incorporates an almost ideal deamnd system (AIDS) in each stage, Elasticity estimates from the system are plausible and consistent with other relevant studies. Results from this study strengthen the evidence of the emergence of a large Chinese market for non-stable food. The study provides rationale and basis for additional research into Chinese food consumption, especially processed food.     

The incidence and intensity of wage indexation: an empirical analysis

Variables suggested by theoretical studies of indexation are considered with a view to examining their utility in the context of the decision to index (incidence) and the desired degree of indexation when escalator clauses are put into effect (intensity). The Tobit model, which can address both of these issues, suggests that most of the effects of explanatory variables on the regressand occur by modifying the incidence of indexation, not its intensity. However, the Tobit model is itself rejected in favour of separate Probit and Truncated Regression investigations of incidence and intensity, respectively. The results obtained indicate that the standard list of explanatory variables, which one thinks of in the context of the theoretical literature as dealing primarily with intensity, perform well in explaining incidence but very poorly in accounting for the non-limit observations. The latter are influenced by bargaining power proxies such as the unemployment rate and union density; a very clear trade-off between indexed and non-contingent wage adjustment can also be discerned. These results call for more theoretical attention to the distinction between indexation incidence and its intensity.     

Privatization and capital formation in developing countries: an empirical analysis

The spur for privatization and its impact on economic performance have been analysed from many perspectives, including microeconomics, macroeconomics, and institutional economics. Previous research has focused on efficiency reasons for privatization at the level of the firm, and the relative performance of state‐owned enterprises and privately owned firms. This article investigates the macroeconomic facet of privatization with particular attention paid to the relation between privatization and capital formation in developing countries. Our study uses recent World Bank data on privatization for 105 countries over the time period 1988–2003. We explore the impact of privatization on capital formation by conducting two‐stage least squares and ordinary least squares estimations within three time frames. Our findings indicate that the effect of privatization on capital formation varies across regions and time frames. In general, privatization is neutral with regard to investment.     

The effect of output growth volatility on output growth: empirical evidence from Turkey

This article assesses the effect of output growth volatility on output growth within a stochastic-volatility-in-mean model with a time-varying framework for an open small economy: Turkey. Until now, the empirical evidence on industrial production mainly reveals that this relationship is negative. However, in further examining different sectors and sub-sectors of industrial production, we find the sign of the relationship changes depending on the sector. Moreover, there is limited evidence that the sign of the relationship changes over time. Thus, the evidence reveals that the nature of the output growth volatility–output growth relationship is not uniform across sectors.     

Privatization,regulation and airport pricing: an empirical analysis for Europe

This paper examines factors determining airport charges. Using data for 100 large airports in Europe, we find that they charge higher prices when they move more passengers. Additionally, competition from other transport modes and nearby airports imposes some discipline on the pricing behavior of airports. Low-cost carriers and airlines with a high market share seem to have a stronger countervailing power. We also find that private airports not regulated charge higher prices than public or regulated airports. Finally, the regulation mechanism does not seem to influence substantially the level of airport charges.     

Aggregate imports and expenditure components in the UK: an empirical analysis

This paper examines the long-run relationship between UK aggregate imports and the macroeconomic components of final expenditure, using the Johansen multivariate cointegration analysis. It is found that there are significant differences between the long-run elasticities of import demand with respect to the different components of final expenditure, over the period 1972 to 1990. An error correction model is proposed for short-run forecasting of UK aggregate imports. The short-run model appears to track the data well.     

Independent courts and administrative agencies: an empirical analysis of the states

This article explores the hypothesis that state administrativeagencies spend more time and effort attempting to protect theiractions from judicial review in states with more independentappointed courts (as opposed to less independent elected courts).This is because more independent courts are (by definition)less influenced by the political/electoral forces that underlieagency - policymaking - as rational actors, agencies may thereforebe expected to recognize the degree of judicial independenceand respond to it. Three state agencies subject to substantialjudicial review in the 1970s are examined: utility commissions,insurance commissions, and the public education bureaucracy.Controlling for relevant political factors, each is found tohave significantly larger staffing for a given regulatory workloadin states with more independent appointed courts, consistentwith the hypothesis.     

Money-output Granger causality revisited: an empirical analysis of EU countries

In this paper, the evidence collected in the large literature on testing for Granger-causality from money to output is revisited. Using a broad data base of 14 EU countries plus Canada, the US and Japan, and quarterly data from the mid 1960s to mid 1990s, a number of hypotheses from this literature is evaluated. It is found that very few general conclusions can be sustained. For instance, in most countries it is not the case that the use of data in levels creates a bias in favour of finding Granger-causality effects of money on output compared to using differences. Neither does the significance of money lags decline when increasing the number of variables included in the model. What appears to be robust, though, is that allowing for asymmetries clearly increases the likelihood of finding significant causality effects. Based on the Granger-causality test results, a number of country groups are obtained using cluster analysis, which are characterized by a similarly behaviour with respect to the money-output relation.     

Asymmetric output cost of lowering inflation: empirical evidence for Canada

A strand of theoretical and empirical evidence in the literature suggests non-linearity in the output-inflation relationship, viz. a non-linear Phillips curve. We develop a VAR model of output, inflation, and terms of trade augmented with logistic smooth transition autoregression specifications. Empirically, the model captures non-linear features present in the data. Output costs of reducing inflation vary, depending on the economy, size of inflation change, and whether policy makers seek to disinflate or prevent inflation from rising. Thus, inferences based on the conventional linear Phillips curve may provide misleading signals about the cost of lowering inflation and the appropriate policy stance. JEL Classification: C32, E52
Le coût asymétrique en termes de production de la réduction de l'inflation: résultats pour le Canada. Ce mémoire a son origine dans les travaux qui suggèrent une certaine non linéarité dans la relation production-inflation i.e. une courbe de Phillips qui serait non-linéaire. Les auteurs utilisent un modèle VAR de la production, de l'inflation et des termes d'échange, enrichi de spécifications autogressives définissant une transition logistique souple. Il appert que les coûts en termes de perte de production de la réduction de l'inflation varient grandement selon l'état de l'économie, la taille des changements recherchés dans le taux d'inflation, et selon que les autorités cherchent créer une déflation ou simplement à empêcher l'accélération de l'inflation. Voilà qui implique que les inférences tirées d'un modèle construit sur la courbe linéaire traditionnelle de Phillips peuvent fournir des signaux trompeurs quant aux coûts de la réduction de l'inflation et suggérer de mauvaises politiques.     

Agency problems and unrelated business income of non-profit organizations: an empirical analysis

Nonprofit organizations are traditionally assumed to dislike commercial activities. In the USA, they are however allowed to engage in commercial activities, but the income they derive from these activities is then subject to the so-called ‘unrelated business income tax’. If NPOs do indeed dislike commercial income, then why do they engage in these activities? Using a data set of 2103 US NPOs, this study suggests that the presence of agency problems inside the organization can at least provide an explanation for the occurrence of ‘unrelated business income’.     

Spatial disaggregation patterns and structural determinants of job flows: an empirical analysis

The paper investigates the changes in job creation and destruction flows at a very disaggregated level of analysis. We analyse whether job flows at lower levels of spatial aggregation display regularities that are in line with national ones in a bid to disentangle the role of labour market institutions. Using a unique database of the population of firms in Trentino (a north‐eastern province of Italy) from 1991 to 2001, we find that: (1) job flows show a ‘fractal’ tendency, i.e. many regularities appear to be scale invariant (magnitude of flow and persistence) and that job flow magnitude is in line with the average values for Italy; (2) there are some qualifications to their ‘fractality’: the contribution of entrant firms to the job creation process is lower than the corresponding contribution at national level, as is the share of job destruction accounted for by exiting firms; and (3) firm size and age influence job flows.