Over the past several decades, Costa Rica has established itself as a global leader in eco‑tourism, promoting its misty cloud forests, black sand beaches, and rich diversity of animals and plant life, among other features. Suppose an eco-lodge spends $10,000 on solar panels made in Costa Rica.

a. The purchase of the solar panels will increase the value of GDP in Costa Rica by $
.
Now suppose a neighboring lodge spends $10,000 on coal burning stoves made in Costa Rica.
b. The purchase of the stoves will increase the value of GDP in Costa Rica by $