True. When you analyze the key elements of a country's economic perspective environment, it is best to apply a systems perspective. When you follow the systems perspective you should be taking all of the behaviors, attributes and actions of a system when it's in its environment. instead of individualizing people and things within, it's an overall evaluation of the system. 
        
             
        
        
        
Answer:
The solution and complete explanation for the above question and mentioned conditions is given below in the attached document.i hope my explanation will help you in understanding this particular question. 
Explanation:
 
        
                    
             
        
        
        
The global economy of the 21st century can be summarized as: <span>an economic system that is more favorable for international business. Trade and imports are at an all time high, especially into the United States from places like China, Japan, and Hong Kong.</span>
        
             
        
        
        
Answer:
=80%
Explanation:
The yield ratio shows the efficiency of a selected recruiting method. It is expressed as a  percentage of candidates invited for an interview from the recruiting method in review.
In this case, there were 25 applicants. Five were disqualified, meaning 20 were interviewed.
Yield ration of advertisement will be;
20/25 x 100
=0.8 X 100
=80%