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Effects of Technological Improvement in the ICT-Producing Sector on Business Activity

  • Hian Teck Hoon

    (SMU)

It seems to be taken for granted by many commentators that the sharp decline in prices of computers, telecommunications equipment and software resulting from the technological improvements in the information and communications technology (ICT)-producing sector is good for jobs and is a major driving force behind the non-inflationary employment miracle and booming stock market in the latter half of the nineties in the U.S. and their recurrence since 2004. We show that, in our model, a technical improvement in the ICT-producing sector by itself cannot explain a simultaneous increase in employment and a rise in firms valuation (or Tobins Q ratio). There are two cases. If the elasticity of equipment price (pI ) with respect to ICT-producing sectors productivity is less than one, labors value marginal productivity increases thus pulling up the demand wage and expanding employment. However, the increased output by adding to the capital stock and thus driving down future capital rentals causes a decline in firms valuation, q per unit, even though Tobins Q (= q=pI ) is up. If the elasticity is greater than one, equipment prices fall so dramatically that labors value marginal productivity declines, employment in the ICT-using sector expands proportionately more than the increase in capital stock, thus raising future capital rentals, so both firms valuation and Tobins Q rise; but then real demand wage falls and employment contracts. The key to generating a booming stock market alongside employment expansion is to hypothesize that when technical improvement in the ICT-producing sector occurs, the market forms an expectation of future productivity gains to be reaped in the ICT-using sector. Then we can explain not only the stock market boom and associated rise in investment spending and employment in the period 1995-2000 but also the subsequent decline in employment, in Tobins Q and in investment spending in 2001, with consumption holding up well as productivity gains in the ICT-using sector were realized. An anticipation of a future TFP improvement in the ICT-using sector can once more play the role of raising the stock market.

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File URL: http://www.eaber.org/node/22437
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Paper provided by East Asian Bureau of Economic Research in its series Macroeconomics Working Papers with number 22437.

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Date of creation: Jan 2006
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Handle: RePEc:eab:macroe:22437
Contact details of provider: Postal: JG Crawford Building #13, Asia Pacific School of Economics and Government, Australian National University, ACT 0200
Web page: http://www.eaber.org

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  1. Paul Beaudry & Franck Portier, 2004. "Stock Prices, News and Economic Fluctuations," NBER Chapters, in: Enhancing Productivity (NBER-CEPR-TCER-Keio conference) National Bureau of Economic Research, Inc.
  2. Feldstein, Martin, 2003. "Why is Productivity Growing Faster?," Scholarly Articles 2794834, Harvard University Department of Economics.
  3. William Nordhaus, 2005. "The Sources of the Productivity Rebound and the Manufacturing Employment Puzzle," NBER Working Papers 11354, National Bureau of Economic Research, Inc.
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