Charles Lindbergh was hailed as a hero for his 33-hour solo transatlantic flight from New York to Paris in 1927. Installment plans and consumerism boomed in the 1920s as Americans had more disposable income. A few large firms dominated many industries such as steel and electricity through oligopolies. The stock market crashed in October 1929 after prices had soared in 1928, plunging on Black Thursday and Black Tuesday in particular.