In pituitary apoplexy, the main initial problem is a lack of secretion of adrenocorticotropic hormone (ACTH, corticotropin), which stimulates the secretion of cortisol by the adrenal gland. This occurs in 70% of those with pituitary apoplexy.
DEFINITION of 'Net Present Value Rule'. A rule stating that an investment should be accepted if its net present value is greater than zero and rejected otherwise.According to the theory of net present value (NPV), participating in a positive NPV project will increase firm or shareholder wealth. rule stating that an investment should be accepted if its net present value is greater than zero and rejected otherwise.
As the price elasticity for most products clusters around 1.0, it is a commonly used rule of thumb.91 A good with a price elasticity stronger than negative one is said to be elastic; goods with price elasticities smaller (closer to zero) than negative one are said to be inelastic..