Yield Management System is an effective pricing tool when O the product is highly perishable the company does not know who the target market is O the dominant brands have become stronger the dominant brands have become weaker the price of the product remains stable Determining price levels based solely on the company's costs O would translate to a sales oriented strategy. can be very effective in the long term. O leads to optimal budget allocations for marketing expenses. O is an outcome of diffusion of innovation. O is a bad marketing strategy