Where investment per worker equals saving per worker.

Where investment per worker equals depreciation per worker

Where investment per worker equals capital per worker.

Where capital per worker equals output per worker.

Initially, output per worker will fall

Eventually, output per head of population will be higher than it started.

There will be sustained economic growth.

There will be capital widening.

If the population continually grows, while everything else stays the same, then living standards will be lower than they would be if the population was constant.

If people save and invest a higher proportion of their incomes, while everything else stays the same, then there will be sustained growth

If people save and invest a higher proportion of their incomes, while everything else stays the same, living standards could fall

A new technology which makes workers more productive, while everything else stays the same, may not lead to sustained growth.

Both 1 and 2

1 only

2 only

Neither 1 nor 2

The poor country may have more rapid population growth

The rich country may have more human capital.

The poor country may have a higher saving ratio.

The rich country may be more open to the world economy.