Consistency of Trend Break Point Estimator with Underspecified Break Number

Trend Break or Unit Root in GDP of Iran

It has been suggested that existing estimates of the long-run impact of a surprise move in income may have a substantial upward bias due to the presence of a trend break in 1970s (1350s) and 1980s (1360s) gross domestic product (contained oil) data of Iran. This article shows that the statistical evidence does not warrant abandoning the no-trend-break null hypothesis at the 5% significance leve...

Aluminum break-point contacts

Number of O - C break - ins lowered

EDITOR’S NOTE: This Is the first story In a three-part series Investi­ gating the policies for the admis­ sion of women and minorities into undergraduate colleges and uni­ versities. The first story will cover the admissions policies for women at Notre Dame. The second story considers the policies for admitting minorities to the University. The final article exam ines the policies for admitting...

Unit Root Tests for Time Series with a Structural Break When the Break Point Is Known

Unit root tests for time series with level shifts are considered. The level shift is assumed to occur at a known time point. In contrast to some other proposals the level shift is modeled as part of the intercept term of the stationary component of the data generation process which is separated from the unit root component. In this framework simple shift functions result in a smooth transition ...

Study Break: Bacterial Cancer

Rarely, do we think of cancer as “bacterial”, such that we are often told that “cancer is NOT contagious” Persistent bacterial infections cause persistent irritation of the host’s defense systems, which when ineffective in eradication of the infection, result in a multitude of self-destructive damages. This in some cases occurs to such severity that the resu...