xplanations.

What prevents a perfectly competitive firm from seeking higher profits by increasing the price that it charges?

Use a graph to demonstrate the scenario where a competitive firm would be earning positive profit in the short run. Can this scenario be maintained in the long run? Why? What are the ‘shutdown point’ and ‘break even point’ of a competitive firm . Explain with diagram. A competitive market starts in a situation of long run equilibrium. Then there is an increase in demand. Explain what happens in the short run and long run, using necessary diagrams.

Suppose that the perfectly competitive tuna Industry is In long-run equilibrium at a price of $3 per can of tuna and a quantity of 600 million cans per year. Suppose the Surgeon General Issues a report saying that eating tuna is bad for your health. The Surgeon General's report will cause consumers to demand Shift the supply curve, the demand curve, or both on the following diagram to illustrate these short-run effects of the Surgeon General's announcement. Note: Select and drag one or both of the curves to the desired position. Curves will snap into position, so if you try to move a curve and it snaps back to its original position, just drag it a little farther. Supply X Demand 400 600 800 QUANTITY (Millions of cans) 0 0 In the long run, some firms will respond by 5 0 200 0 200 Demand 1000 Shift the supply curve, the demand curve, or both on the following diagram to Illustrate both the short-run effects of the Surgeon General's announcement and the new long-run equilibrium after firms…