Final answer:
The false statement is that a company's competitive efforts have no impact on its regional market share and number of branded pairs sold. Competitive efforts do affect market presence, with positive efforts possibly enhancing and poor efforts potentially decreasing market share and sales.
Step-by-step explanation:
Among the statements given about a company's competitive efforts and their impact on regional market share and sales, the false statement is the first one: 'The company's competitive efforts in a region have no impact on its regional market share and number of branded pairs sold.'
In reality, a company's competitive efforts typically have a significant impact on these factors. If a company's competitive strategies are effective, they can lead to an increase in market share and the number of products sold, as indicated in statement 2. On the other hand, poor competitive efforts, or competition from firms offering better or cheaper products, could lead to a reduction in market share and sales, resonating with the consequences mentioned in statement 18. However, it is also possible that the exact impact cannot be precisely determined in advance (as suggested in statement 4) because it can depend on various external factors and the actions of competitors in the regional market.