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Competitors and supply chain is an element of economic forces.
<h3>What are economic forces?</h3>
Economic forces are those factors that assist a firm in terms of its competitiveness in the environment it operates.
Here, economic forces have a direct impact on business and are essential factors that can help an organization in accomplishing its targets.
Learn more about economic forces here: brainly.com/question/13721949
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Answer:
Option (b) is correct.
Explanation:
This is a case of monopoly market condition where there is a single firm operating the whole market. The price of the products is set by the single firm and the buyers in this market are price taker. The monopolist can earn normal profit, losses and abnormal profit in the short run and can earn normal profit and abnormal profit in the long run. 
In our case, the price of diamonds is high because there is only single firm in the whole market and there is no other competitors in the market. That's why they are charging the higher prices.
 
        
             
        
        
        
Answer:
Just in time (JIT) inventory management
Explanation:
Just in time (JIT) inventory management is a system created to lower inventory costs and increase manufacturing efficiency. JIT aligns materials and components orders with production schedules in order to reduce inventory levels to the lowest possible level. 
It was developed by Toyota in order to reduce the costs of its car manufacturing processes. Once I visited a Toyota pickup factory and it was amazing to see that the whole inventory of finished engines was 4 units, and the factory produced more than 500 pickups per day. 
 
        
             
        
        
        
I think that white winexpensive is heterogeneous