In economics an externality is the cost or benefit that affects someone who did not choose this. It is the true cost of a product that can be both positive or negative. Pollution can be an example of this. An educated labor force producing more is a positive example of this. The government rewards positive externality and punishes negative externality. Rewards can be surpluses and taxes can be punishments.
Answer:
B) Will become flatter as output increases if there are diminishing returns to the variable input
Explanation:
<span>Ellen’s research design employs a <u>case study method</u>. This method can be used to examine real-life situations, in this case, the issue about overweight celebrities. It aims to understand the behavioral conditions as observed from the object. It is also based on an in-depth investigation focused on a single person or a group. </span>
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<em><u>The equation shows the relationship between her weekly salary (w), hours per week (h), and rate per hour (r) is:</u></em>

<em><u>Solution:</u></em>
Given that,
Alice earned $12 per hour
1 hour = $ 12
<em><u>Find the number of hours in 1 week</u></em>
1 day = 24 hours
1 week = 7 days
Therefore,
1 week = 7 x 24 = 168 hours
Let "h" be the hours per week
let "r" be the rate per hour
Let "w" be the rate per hour
From given,
r = $ 12
h = 168 hours
weekly salary = hours per week x rate per hour


Thus, she earns $ 2016 for 1 week