The problem is to decide on a production plan for a n-period horizon for a single product. the basic model has the following parameters for every time period t e {1, 2, }: fixed cost of producing in period t (ft), variable production cost in period t (pt per unit), unit storage cost in period t (ht), and demand in period t (dt). there are no capacity limits, and no shortages are allowed. formulate the problem as an ip.