4. The catch-up effect
Consider the economies of Hermes and Gribinez, both of which produce gaggles of gop using only tools and workers. Suppose that, during the course of 20 years, the level of physical capital per worker rises by 5 tools per worker in each economy, but the size of each labor force remains the same.
Complete the following tables by entering productivity (in terms of output per worker) for each economy in 2020 and 2040.
Year |
Hermes |
|||
---|---|---|---|---|
Physical Capital | Labor Force | Output | Productivity | |
(Tools per worker) | (Workers) | (Gaggles of gop) | (Gaggles per worker) | |
2020 | 7 | 30 | 1,800 | |
2040 | 12 | 30 | 2,160 |
Year |
Gribinez |
|||
---|---|---|---|---|
Physical Capital | Labor Force | Output | Productivity | |
(Tools per worker) | (Workers) | (Gaggles of gop) | (Gaggles per worker) | |
2020 | 4 | 30 | 900 | |
2040 | 9 | 30 | 1,620 |
Initially, the number of tools per worker was higher in Hermes than in Gribinez. From 2020 to 2040, capital per worker rises by 5 units in each country. The 5-unit change in capital per worker causes productivity in Hermes to rise by a amount than productivity in Gribinez. This illustrates the effect.
Year |
Hermes |
|||
---|---|---|---|---|
Physical Capital | Labor Force | Output | Productivity | |
(Tools per worker) | (Workers) | (Gaggles of gop) | (Gaggles per worker) | |
2020 | 7 | 30 | 1,800 | 60 |
2040 | 12 | 30 | 2,160 | 72 |
Year |
Gribinez |
|||
---|---|---|---|---|
Physical Capital | Labor Force | Output | Productivity | |
(Tools per worker) | (Workers) | (Gaggles of gop) | (Gaggles per worker) | |
2020 | 4 | 30 | 900 | 30 |
2040 | 9 | 30 | 1,620 | 54 |
Initially, the number of tools per worker was higher in Hermes than in Gribinez. From 2020 to 2040, capital per worker rises by 5 units in each country. The 5-unit change in capital per worker causes productivity in Hermes to rise by a smaller amount than productivity in Gribinez. This illustrates the catch-up effect.
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