摘要:

This article investigates empirical evidence on the structure of price expectations in the United States during the post-Korean War period. The study utilizes semiannual data which describe price expectations for six months and twelve months ahead. The objective is to use these two sets of data to test some of the well-known expectational hypotheses. Incidental to this we determine whether expectations satisfy the rationality hypothesis, and we briefly consider the accuracy of the predictions.

ISSN:0162-1459    

DOI:10.1080/01621459.1970.10481175

出版商:Taylor & Francis Group    

年代:1970

数据来源: Taylor

摘要:

The European Economic Community (EEC) was created in January, 1958. The European Free Trade Association (EFTA) was organized two years later with the intent to “catch up” within six months. These markets provide instances of two major types of discrimination, namely a customs union and a free-trade area. They have now functioned long enough to permit useful examination of the trading patterns that have developed in the wake of discrimination.

ISSN:0162-1459    

DOI:10.1080/01621459.1970.10481176

出版商:Taylor & Francis Group    

年代:1970

数据来源: Taylor

摘要:

This article presents several specifications of a retail sales model to explain the differential sales of retail goods and services in large Standard Metropolitan Statistical Areas in 1954 and 1963. Stepwise regression is employed and some hitherto unused regressors such as local government expenditures and taxes are introduced to compare different forms of the model specification. Tests on the stability of the relevant elasticities obtained in the model over time and on the predictive accuracy of this model are performed. The results of these tests support the stable elasticities hypothesis and show very high predictive accuracy for the model.

ISSN:0162-1459    

DOI:10.1080/01621459.1970.10481177

出版商:Taylor & Francis Group    

年代:1970

数据来源: Taylor

摘要:

A stochastic model for the behavior of the daily census in general-acute hospitals is presented. For any mix of elective and emergency patient day demand this model permits the computation of a complete set of measures of operating efficiency including expected overfill rate, percentage occupancy, waiting time for admission, waiting list length, and loss of emergency patients.

ISSN:0162-1459    

DOI:10.1080/01621459.1970.10481178

出版商:Taylor & Francis Group    

年代:1970

数据来源: Taylor

摘要:

The Behrens-Fisher problem is that of comparing the means of two populations when the ratio of their variances is unknown. Solutions are discussed in terms of interval estimation and testing. Of the six solutions compared, three are preferred by the writer and judged practical, and for these, approximations are given for the power of the tests.

ISSN:0162-1459    

DOI:10.1080/01621459.1970.10481179

出版商:Taylor & Francis Group    

年代:1970

数据来源: Taylor

摘要:

Many statistical models, and in particular autoregressive—moving average time series models, can be regarded as means of transforming the data to white noise, that is, to an uncorrected sequence of errors. If the parameters are known exactly, this random sequence can be computed directly from the observations; when this calculation is made with estimates substituted for the true parameter values, the resulting sequence is referred to as the “residuals,” which can be regarded as estimates of the errors.

ISSN:0162-1459    

DOI:10.1080/01621459.1970.10481180

出版商:Taylor & Francis Group    

年代:1970

数据来源: Taylor

摘要:

In the area of applied time series analysis a commonly occurring problem involves the detection and estimation of signals (regression functions) imbedded within a collection of independent identically distributed noise processes. A general linear model which represents each observed time series as the sum of a wide sense stationary error process and a vector of regression functions operated on by a matrix of time invariant observables includes as special cases many signal models of interest. In this article a possible unified approach to estimation and tests of hypotheses for this linear model is presented. Asymptotic regression estimates and analysis of variance (power) tables are presented in the frequency domain and simple derivations for the probability distributions of the sums of squares are given. The resulting analysis of power partitions the spectral power in each frequency band into components which can be attributed directly to each of the regression functions. As an example, a sample of ten time series is analyzed which contains a mean value function and an effect function in the presence of error.

ISSN:0162-1459    

DOI:10.1080/01621459.1970.10481181

出版商:Taylor & Francis Group    

年代:1970

数据来源: Taylor

摘要:

This article considers repeated regression experiments wherein the regression parameters vary according to a stationary stochastic process with known covariance structure. Expressions are derived for best linear estimators and predictors of linear functions of the regression parameters.

ISSN:0162-1459    

DOI:10.1080/01621459.1970.10481182

出版商:Taylor & Francis Group    

年代:1970

数据来源: Taylor

摘要:

A one-sample nonparametric test is proposed which sequentially examines the values of the Wilcoxon signed-rank statistic. The test rejects the null hypothesis of symmetry about zero if for anynbetween 1 andNthe Wilcoxon signed-rank statistic forX1, …,Xndiffers from its null mean by |z|aNstandard deviations; otherwise the null hypothesis is accepted. The critical constant |z|aNis determined by Monte Carlo sampling.

ISSN:0162-1459    

DOI:10.1080/01621459.1970.10481183

出版商:Taylor & Francis Group    

年代:1970

数据来源: Taylor

摘要:

Any procedure of combining inter- and intra-block information involves use of the ratio of the inter-block variance to the intra-block variance. Since this ratio is not known but is estimated, some loss of information is to be expected. This loss is measured here by computing actual gain over the information provided by the intra-block estimate and expressing it as a percentage of the maximum gain possible (when the ratio of variances is known). The results for four BIB designs and comments are given in Section 2.

ISSN:0162-1459    

DOI:10.1080/01621459.1970.10481184

出版商:Taylor & Francis Group    

年代:1970

数据来源: Taylor