Question

Problem exists when rivals watch a pioneer's efforts, learn from their successes and missteps, and then enter the market quickly with a comparable or superior product at a lower cost

Answer 1

The answer is "Fast Follower Problem".

Fast Follower Problem exists when savvy rivals watch a pioneer's endeavors, gain from their triumphs and slips, at that point enter the market rapidly with a practically identical or prevalent item at a lower cost before the primary mover can rule.