Written April, 2007
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Don Hofstrand

Barriers to Entry and Exit

Don Hofstrand, Co-Director, Ag Marketing Resource Center, 641-423-0844, dhof@iastate.edu




A barrier to entry is something that blocks or impedes the ability of a company (competitor) to enter an industry. A barrier to exit is something that blocks or impedes the ability of a company (competitor) to leave an industry.

In general, industries that are difficult for new competitors to enter may enjoy periods of good profitability and limited rivalry among competitors. Conversely, industries that are easy to enter attract new companies into the industry during periods of profitability. So, rivalry among competitors can be intense. On the other end, industries that are difficult to exit have more rivalry than industries that are easy to leave.

Some of the common barriers to entry and exit are listed below.

Typical Barriers to Entry

Typical Barriers to Exit

If we combine entry and exit, we can predict industry rivalry, stability and profitability. As shown in Figure 1, an industry that is easy to enter but difficult to leave has intense industry rivalry and low profitability. At the first sign of excess profitability in the industry, competitors flock to the industry. However, when profitability falls, it is difficult to leave the industry so profitability remains low.

Figure 1.

Conversely, an industry that is difficult to enter but easy to leave is shown in Figure 2. It has limited industry rivalry and tends to have good profitability. Competitors have a difficult time entering the industry during times of good profitability. However, during period of low profitability, competitors leave the industry easily.

Figure 2.

Industries that are easy to enter and easy to exit are shown in Figure 3. The size and composition of the industry is fluid and changes easily. Supply responds quickly to changes in demand and prices tend to stabilize.  Rivalry is moderate due to the easy flow of businesses into and out of the industry.

Figure 3.

Industries that are difficult to enter and difficult to exit are shown in Figure 4. The size and composition of the industry is static and changes slowly. Supply changes slowly due to market signals so price responds strongly to changes in demand. The amount of rivalry can change radically due to changes in demand.

Figure 4.