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TECHNOLOGY AT WORK

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February 2015<br />

Citi GPS: Global Perspectives & Solutions<br />

73<br />

Stagnation, according to Hansen, stems<br />

from a slowdown in technological<br />

progress…<br />

…but sluggish job creation in digital<br />

industries does not necessarily imply a<br />

slower or faster pace of innovation<br />

Joe Seydl<br />

Global Economics Research Team<br />

Ebrahim Rahbari<br />

European & Global Economics Teams<br />

Over recent decades, the US economy has witnessed a downward trend in<br />

indicators of technological dynamism: the rate of business startups and the pace of<br />

job relocation have recently fallen, while the share of US employment accounted for<br />

by young firms has declined sharply throughout the 2000s. 109 Even the high-tech<br />

sector started to decline in the post-2000 period, experiencing a shift in economic<br />

activity away from young to more mature firms.<br />

An appealing, but mostly neglected, explanation for this is offered by the life-cycle<br />

pattern of the computer revolution. As investment in computer and information<br />

processing equipment surged throughout the 1980s and 1990s, a wide range of<br />

entirely new computer-related jobs were created. Beyond the peak investment<br />

stage in 2000, however, the US economy experienced a decline in the demand for<br />

new work relative to the early stages of the computer revolution. 110 The question<br />

thus arises: where will the next generation of capital-absorbing innovations come<br />

from?<br />

In Hansen’s framework, stagnation stems from a slowdown in technological<br />

progress, resulting in fewer investment opportunities. Indeed, a number of<br />

economists, including Robert Gordon and Tyler Cowen, have suggested that the<br />

most useful innovations have already been made. 111 Yet the technological<br />

opportunities offered by the digital revolution may well be greater than anything we<br />

have seen in the past.<br />

Crucially, the sluggish job creation in digital industries does not necessarily imply a<br />

slower or faster pace of innovation. Instead, it stems from the fact that digital<br />

innovation is much less capital-absorbing, meaning that there is little demand for<br />

labour to build the new capital. While WhatsApp started with $250,000 of seed<br />

funding, they still only employed 55 workers at the time the company was acquired<br />

for $19 billion.<br />

That the digital economy may cause secular stagnation is a real risk. 112 The simple<br />

reason is that businesses of the digital revolution require less capital investment<br />

and thus fewer workers to build the new capital, relative to the investment<br />

opportunities brought by technological revolutions of the past. As economies are<br />

becoming increasingly digitised, investment opportunities will continue tapering off.<br />

Accompanied with a rising share of profits, the savings glut is likely to persist.<br />

Macro Policy Implications<br />

The risk of secular stagnation has significant implications for policy. The stance of<br />

monetary policy at any moment depends crucially on the output gap, or the<br />

difference between potential GDP, which assumes full utilisation of available inputs<br />

(land, labour and capital), and actual GDP, the amount of expenditure actually<br />

occurring in the economy. When potential GDP is running above actual, this means<br />

that slack and underutilisation is abundant, leading to downward pressure on wages<br />

and prices and thereby to action by the central bank to ease monetary policy to<br />

meet its inflation target. Conversely, actual GDP running above potential implies an<br />

overheating economy and a tightening stance of monetary policy.<br />

109 Decker et al. (2014).<br />

110 Frey (2015).<br />

111 Gordon (2012); Cowen (2011).<br />

112 Frey (2015).<br />

© 2015 Citigroup

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