What reduced per capita income prior to the industrial revolution ?
Per capita income declines when the price of oil declines ( per capita income reportedly fell at one point ( 1995 ) to 1/4 of what it was prior to the revolution ) ; Accumulated assets of the Iranian middle class - carpets , gold , apartments - that were acquired in the four - year boom after the 1973 oil price rise and served to cushion the fall in standards of living , have now reportedly " largely been sold off .