He theory of developed by michael porter, focuses on the importance of country factors such as domestic demand and domestic rivalry in explaining a nation's dominance in the production and export of particular products.

i believe the answer would have to be a dependable person

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

                                          hope it