Bob Clements; Clements And Michael Angelella Bob Clements and Michael Angelella Xlibris Corporation (2007) Saatavuus: Hankintapalvelu Kovakantinen kirja
Douglas H. Clements; Michael T. Battista; Julie Sarama National Council of Teachers of Mathematics,U.S. (2001) Saatavuus: Painos loppu Pehmeäkantinen kirja
This book provides a formal analysis of the models, procedures, and measures of economic forecasting with a view to improving forecasting practice. David Hendry and Michael Clements base the analyses on assumptions pertinent to the economies to be forecast, viz. a non-constant, evolving economic system, and econometric models whose form and structure are unknown a priori. The authors find that conclusions which can be established formally for constant-parameter stationary processes and correctly-specified models often do not hold when unrealistic assumptions are relaxed. Despite the difficulty of proceeding formally when models are mis-specified in unknown ways for non-stationary processes that are subject to structural breaks, Hendry and Clements show that significant insights can be gleaned. For example, a formal taxonomy of forecasting errors can be developed, the role of causal information clarified, intercept corrections re-established as a method for achieving robustness against forms of structural change, and measures of forecast accuracy re-interpreted.