Are Technology Shocks Responsible for Business Cycles? In a Word, No.
In their writings, Finn Kydland and Edward C. Prescott (K-P), the 2004 Nobel laureates in economics, had hypothesized that a major cause behind boom-bust cycles is technology shocks. In order to assess the importance of this claim, which they labeled the theory of real business cycles, K-P employed the Solow growth model (after Robert Solow, the 1987 Nobel laureate), which in turn is based on the Cobb-Douglas production function of the following type:
Y = A*K(1–a)*Na,