Answers are grounded in this paper and cite their sources.
The estimation of a quadratic regression curve when the quadratic coefficient is known to be positive is treated by a Bayesian method. The method extends easily to deal with a general linear model under parameter constraints.
No takes yet. Share an insight, caveat, or question.
Anthony O’Hagan (1973) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: