Using the concept of product portfolio, explain whether PU should remove the offering of less popular subjects such as history and international languages. (6 marks) A product portfolio is defined as the variety of subjects offered by PU. In business management, the BCG matrix is marketing tool used to help organizations create a balanced portfolio of product based on their market potential. Evaluated using a matrix measuring the degree of market share and market growth, dogs are products with low market share with low market growth, and stars are products with high market share and high market growth. From the information provided, it seems that history and the international languages seem to be dogs as they have a level of take up and this is set to further deteriorate in the coming years. According to the BCG matrix, dogs should be disposed, in fear that keeping them around wil lead to liquidity problems which PU is facing at the moment.