How much of the Earth used to be covered by glaciers

If temper company, a manufacturer of mattresses, was considering moving its production facilities to china but decided against it because the additional costs of shipping the mattresses back to the u.s. would offset the cost savings associated with moving the production facilities, the increased costs associated with shipping would be an example ofanswers: learning-curve economies.diseconomies of scale.economies of scale.competitive advantages.

Wallis company manufactures only one product and uses a standard cost system. the company uses a predetermined plantwide overhead rate that relies on direct labor-hours as the allocation base. all of the company's manufacturing overhead costs are fixed—it does not incur any variable manufacturing overhead costs. the predetermined overhead rate is based on a cost formula that estimated $2,886,000 of fixed manufacturing overhead for an estimated allocation base of 288,600 direct labor-hours. wallis does not maintain any beginning or ending work in process inventory.

(a) what was the opportunity cost of non-gm food for many buyers before 2008? (b) why did they prefer the alternative? (c) what was the opportunity cost in 2008? (d) why did it change?