The five Kondratieff cycles in the history of the world economy are:
1. The first round (50 years): prosperity from 1782 to 1802, recession from 1815 to 1825, depression from 1825 to 1836, recovery from 1836 to 1845, with the iconic innovative technology being the steam engine;
2. The second round (47 years): prosperity from 1845 to 1866, recession from 1866 to 1873, depression from 1873 to 1883, recovery from 1883 to 1892, with the iconic innovative technologies being steel and railways;
3. The third round (49 years): prosperity from 1892 to 1913, recession from 1920 to 1929, depression from 1929 to 1937, recovery from 1937 to 1948, with the iconic innovative technologies being electricity and heavy chemicals;
4. The fourth round (43 years): 1948-1966 boom, 1966-1973 recession, 1973-1982 depression, 1982-1991 recovery, iconic innovative technologies are automobiles and computers;
5. The fifth round (estimated to be 42 years): 1991-2004 boom, 2004-2015 recession, 2015-2024 depression, 2024-2033 recovery, iconic innovative technologies are information technology and artificial intelligence. #美联储连续第七次维持基准利率不变 #美国5月CPI超预期回落 #IO $BTC
