The price-point elasticity of demand formula is: Ed = P/Q sub d * dQ/Dp, where: P is the price at which you are evaluating the elasticity of demand. Q sub d is the quantity demanded at the point you are evaluating elasticity of demand. dQ/dP is the first derivative of quantity demanded with respect to price.
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Deï¬nition of âphysician in group practiceâ is tightened.Under Stark III, an independent contractor physicianmust furnish patient care services for the group prac-tice under a direct contractual arrangement with thegroup, and not between the group practice and anotherentity, such as stafï¬ng entity.