An economy has two goods: good 1 is plastic and good 2 is petroleum. The production of 1 unit of plastic requires .5 units of plastic and .15 units of petroleum, and the production of 1 unit of petroleum requires .5 units of plastic and .3 units of petroleum. The external demand is 2 units of plastic and 1 unit of petroleum. What is the technology matrix A?

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The entries in the technology matrix are as follows:

`A=([a_(11),a_(12)],[a_(21),a_(22)])`

`a_(11):` units of product 1 required to make one unit of product 1

`a_(12):` units of product 1 required to make one unit of product 2

`a_(21):` units of product 2 required to make 1 unit of product 1

`a_(22):` units of product 2 to make 1 unit of product 2

Therefore `A=([.5,.5],[.15,.3])` is the technology matrix.

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