The country of Olmantia has generally relied on growing soybeans as an export. Recently, the ministry of agriculture has implemented a system to reduce dependence on this single crop by encouraging farmers to grow other legumes. Olmantia currently grows more non-soy legumes each year than it consumes, and exports of soybeans are in decline, due to competition from suppliers in other nations. If these trends continue, Olmantia's ability to export other legumes is likely to grow in the near future.
Which of the following would it be most useful to establish in evaluating the argument?