Abstract:
From 1932 through 1957, purchases of gasoline and motor oil may have related to transitory income, perhaps through impulsive purchases. This relation may have affected innovations to refine oil.
Keywords:permanent; income; innovation; patents; oil; refining (search for similar items in EconPapers) JEL-codes:O33N52 (search for similar items in EconPapers) Date: 2001-05-22 Note: Type of Document - Microsoft Word 2000; prepared on Compaq Presario 1200; to print on HP; pages: 8; figures: 4 included View list of references