A constrained least squares method for e
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Dr Sten Thore
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Article
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1989
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John Wiley and Sons
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English
β 584 KB
A constrained least squares method is developed for the estimation of the effects of an unknown intervening causal factor in regression analysis, when the unknown factor shifts the regression hyperplane monotonically upwards (downwards) over time. As an illustration, we estimate the price elasticity