Answer:
Sporon
2014 productivity per worker = total output / total number of workers = 3,000 / 30 = 100 gobs of goo per worker
2024 productivity per worker = total output / total number of workers = 3,600 / 30 = 120 gobs of goo per worker
Gobbledigook
2014 productivity per worker = total output / total number of workers = 2,400 / 30 = 80 gobs of goo per worker
2024 productivity per worker = total output / total number of workers = 3,600 / 30 = 120 gobs of goo per worker
The 5-unit change in capital per worker causes productivity in Sporon to rise by a SMALLER amount than productivity in Gobbledigook. This illustrates the concept of CATCH-UP EFFECT, which makes it EASIER for countries with low output to catch up to those with higher output.