A modified logit model for time series with an application to the pricing behaviour of manufacturing firms in Australia

The modified logit model (Amemiya and Nold, 1975) is generalised to the case where the error term is autocorrelated. The asymptotic distribution (as n →∞ and T →∞) of a feasible GLS estimator of β is derived. Tests of linear restrictions on β and the significance of ρ are presented. The results of the applied work suggest that the factors which explain the pricing behaviour of manufacturing firms, as reported in the tendency survey conducted by the Australian Chamber of Commerce and Industry and the Westpac Banking Corporation, include historical inflation rates of up to 7 quarters and capacity utilisation. First version received: March 2001/Final version received: July 2002 RID="*" ID="*"  The first draft of this paper was written while the author was on study leave at the Department of Econometrics, University of Sydney, Australia.     

Persistence of Shocks to Output in Austria and Theories of Economic Growth

The paper analyzes the degree of output persistence in GDP in order toempirically discriminate between the Solow growth model, the perfect competition endogenous growth model and the imperfect competition endogenous growth model for the case of Austria. Wefind that a shock in the growth rate of output induces a permanent and larger effect on the level of GDP. This leads us to refute the Solow growth model and the perfect competition model of endogenous growth.We may not reject the imperfect competition growth model.     

传感器系列课程教学改革实践与探索

在传感器系列课程的教学、实验、设计等教学环节中进行教学改革,将知识传授、能力培养、素质教育融为一体,提高了学生的学习兴趣,获得了较好的工程实训效果。     

基于时间序列的山东省人均GDP分析与预测

人均国内生产总值综合考虑了一个地区经济总量和人口基数,能够较好地反映一个地区经济增长和居民经济生活水平。本文以1978—2013年的山东省人均GDP数据为样本,用时间序列分析方法建立自回归预测模型。根据预测,山东省“十二五”期间人均GDP呈现出先慢后快的增长特点,可能原因是前期受金融危机影响较大,后期影响逐渐减弱。政府应保持宏观经济政策连续性稳定性,不断扩大开放,实施创新驱动,加快转方式调结构促升级,深化国民收入分配体制改革,实现经济持续健康发展和社会和谐稳定。     

The asymmetry of judgemental confidence intervals in time series forecasting

In forecasting a time series, one may be asked to communicate the likely distribution of the future actual value, often expressed as a confidence interval. Whilst the accuracy (calibration) of these intervals has dominated most studies to date, this paper is concerned with other possible characteristics of the intervals. It reports a study in which the prevalence and determinants of the symmetry of judgemental confidence intervals in time series forecasting was examined. Most prior work has assumed that this interval is symmetrically placed around the forecast. However, this study shows that people generally estimate asymmetric confidence intervals where the forecast is not the midpoint of the estimated interval. Many of these intervals are grossly asymmetric. Results indicate that the placement of the forecast in relation to the last actual value of a time series is a major determinant of the direction and size of the asymmetry.