Purpose – The purpose of this paper is to develop a methodology to reduce the field failures of splined shafts. The paper also demonstrates the application of Mahalanobis-Taguchi system (MTS) for identifying the optimum hardness profile to avoid failures. Design/methodology/approach –...

This paper suggests a stratified optional randomized response model based on Mangat and Singh (1994) model that has proportional and optimal allocation and larger gain in efficiency. Numerically it is found that the suggested model is more efficient than Kim and Warde (2004) stratified...

Every month the commercial banks in Iceland publish their inflation forecast for the coming month. This paper examines how accurate these forecasts were from 2000 to 2006. Most of the forecasts have similar accuracy where the inflation rate in the month in question is underestimated by 2 to 6...