GDP -- the production of a pound of hamburger or the production of a pound of caviar? Why?

According to the commonly used Expenditure Method of calculating GDP, the production of a pound of caviar would contribute to a nation's GDP than would the production of a pound of ground beef. The Expenditure Method calculates GDP as follows:

GDP = Private Consumption + Gross Investment + Government Spending + The difference in net exports and net imports.

Noting the simplified nature of this equation, the production-based contributing group is identified quite clearly as gross investment. This category includes all of the necessary inputs required in producing a certain good (caviar in this case). Being that caviar can be considered a luxury item, and costs much more that hamburger meat, it is safe to assume that its production is equally costly. Therefore, while the entire ground beef industry may have the...
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