The differences in income or wealth across individuals could result from differences in A) income depends in part upon economic conditions beyond our control; a worker's value ...
The different income sources include:
A) income depends in part upon economic conditions beyond our control; a worker's value depends greatly upon the price of the product he helps produce (e.g., a wage of a coal miner would increase if we ran out of oil)
2) the natural talents that people are endowed with at birth
3) the skills and experiences that people acquire through education, training, and work
4) how hard individuals choose to work
Thus, the differences in income or wealth across individuals could result from differences in Option A.
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