See one effect of a city moving from Phase 1 to phase two:
Pittsburgh
Historical populations
Census Pop. %±
1810 4,768 –
1820 7,248 52.0%
1830 12,568 73.4%
1840 21,115 68.0%
1850 46,601 120.7%
1860 49,221 5.6%
1870 86,076 74.9%
1880 156,389 81.7%
1890 238,617 52.6%
1900 321,616 34.8%
1910 533,905 66.0%
1920 588,343 10.2%
1930 669,817 13.8%
1940 671,659 0.3%
1950 676,806 0.8%
1960 604,332 -10.7%
1970 520,117 -13.9%
1980 423,938 -18.5%
1990 369,879 -12.8%
2000 334,563 -9.5%
ELMAT: See how population stagnated by two decades and then went into reverse.
The growth of Pittsburgh and its economy was caused by the extensive trade of steel. Since, Pittsburgh has adapted to the collapse of the region's steel industry.
As it moved, it shrunk:
The primary industries have shifted more to high technology, such as robotics, health care, nuclear engineering, tourism, biomedical technology, finance, and services. Education is also a major employer, from primary through magnet schools, specialized professional institutes and highly-ranked universities.
|
