Economic growth in Japan weakened significantly in the last financial quarter, official figures show.
Between April and June this year gross domestic product - the sum of the nation's goods and services - grew by 0.1%, much lower than expected.
This contrasts sharply with China. World Bank figures show that in the first eight years of this century its economy grew by 261%, compared with just 5% growth in Japan.
Komla Dumor spoke to Martin Jacques, author of the book 'When China Rules the World: the Rise of the Middle Kingdom and the End of the Western World.'