Answer:
The economic principle is "people usually exploit opportunities to make themselves better off".
Explanation:
Here, the health club is offering a free one-year membership for the person who attends the most yoga classes in March.
So, there is an opportunity for every individual to get a free one year membership. <em>So, more and more people will try to attend more yoga classes in order to obtain free membership for one complete year. </em>This choice will be made by most of the individuals because they want to get rid of paying fee every month. Hence, <em><u>this will tend every individual to grab and exploit that opportunity to make themselves better off.</u></em>
Thus, the increase in people attending yoga classes is based on the economic principle "people usually exploit opportunities to make themselves better off".
 
        
             
        
        
        
Answer:
YTM = 6.42%
Explanation:
current market value = $1,000 x 98% = $980
n = (15 - 2) x 2 = 26
coupon = $1,000 x 6.2% x 1/2 = $31
face value = $1,000
YTM = [coupon + [(face value - market value)/n]} / [(face value + market value)/2]
YTM = [31 + [(1,000 - 980)/26]} / [(1,000 + 980)/2]
YTM = (31 + 0.77) / 990 = 31.77 / 990 = 0.03209 x 2 (annual yield) = 0.641818 = 6.42%
 
        
             
        
        
        
Answer:
When labor productivity is high.
Explanation:
According to neoclassical economic theory, real wages are equal to the marginal product of labor (MLP). The marginal product of labor is the extra output produced by one extra unit of labor (one extra worker).
If the MPL is high, this means that workers are very productive, and therefore, are paid a high real wage accordingly. 
This is why countries with high labor productivity like the U.S. or Switzerland also have very high real wages.