Final answer:
Kayne's implicit costs are the sum of the earnings he forgoes by not pursuing the next best alternative to running his store, resulting in a total of $47,000. This is calculated by adding the potential income from selling video games, $42,000, and the income from renting out the store and equipment, $5,000.
Step-by-step explanation:
To calculate Kayne's implicit costs for running a specialty running store, we must consider the opportunities he foregoes to operate his business. In economics, an implicit cost is the income a business owner could have earned by choosing the next best alternative with their resources. In Kayne's case, he could have made $42,000 selling video games on the Internet plus an additional $5,000 if he rented out the store and equipment. Therefore, to find the total implicit costs for Kayne, we add up these two potential earnings:
Alternative income from selling video games: $42,000
Income from renting out store and equipment: $5,000
By summing these figures, we get Kayne's total implicit costs:
Total implicit costs = $42,000 + $5,000 = $47,000.
Kayne's implicit costs are the sum of the income he forgoes from the next best alternative to running his store, which amounts to $47,000 in this scenario. It's important to include both explicit and implicit costs when calculating the economic profit to determine the true profitability of a business.