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EXPANDING OPPORTUNITIES<br />

119<br />

The risk of rising inequality is evident in the<br />

declining shares of (routine) labor in national income,<br />

and the “polarization” of the labor market—that is, the<br />

declining employment in middle-skilled occupations<br />

relative to those in low- and high-skilled ones, and<br />

the heightened competition for low-skilled jobs. The<br />

concern is that the ladder to the middle class is pulled<br />

away as middle-skilled jobs disappear or are fundamentally<br />

transformed by digital technologies.<br />

Declining shares of labor in national income<br />

Various factors, including technology, are shifting<br />

the distribution of income within countries away<br />

from routine labor and toward nonroutine labor and<br />

capital. 106 In the past few decades, and especially after<br />

2000, the share of national income going to workers<br />

has fallen steadily in developed and many developing<br />

countries, driven by a falling share of income going<br />

to workers performing mostly routine tasks that follow<br />

exact, well-defined procedures that can be easily<br />

automated (figures 2.12 and 2.13). In the United States,<br />

at the technological frontier, the share of income<br />

going to routine labor has fallen from 38 to 23 percent<br />

since the late 1960s, with a simultaneous rise in the<br />

nonroutine labor share from 24 to 34 percent. In Honduras<br />

and Romania, in the 2000s, the income share of<br />

nonroutine labor increased from 28 to 32 and from 21<br />

to 25 percent, respectively, with declines in the share<br />

of routine labor. 107 Where the labor share has fallen<br />

most, inequality has risen most (figure 2.14). A growing<br />

literature also links recent technological change<br />

to widening inequality. 108<br />

Figure 2.12 United States: Labor share<br />

in national income is falling, driven by<br />

routine labor<br />

Share of routine and nonroutine labor in total income<br />

Income share (%)<br />

45<br />

40<br />

35<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

1968<br />

1973<br />

1978<br />

1983<br />

Routine labor<br />

1988<br />

1993<br />

1998<br />

2003<br />

2008<br />

Nonroutine labor<br />

Source: Eden and Gaggl 2014, for the WDR 2016. Data at http://bit.do<br />

/WDR2016-Fig2_12.<br />

2013<br />

Figure 2.13 Labor shares in national<br />

income are falling in many countries,<br />

including some developing countries<br />

Trends in labor shares in output since 1975<br />

percentage points every 10 years<br />

Poland<br />

Mexico<br />

Hungary<br />

Estonia<br />

Bahrain<br />

Slovenia<br />

Lithuania<br />

South Africa<br />

Norway<br />

Luxembourg<br />

Micronesia, Fed. Sts.<br />

Namibia<br />

Latvia<br />

New Zealand<br />

China<br />

Finland<br />

Tunisia<br />

Argentina<br />

Slovak Republic<br />

Germany<br />

Austria<br />

Sweden<br />

France<br />

Italy<br />

Australia<br />

Taiwan, China<br />

Canada<br />

Japan<br />

Denmark<br />

Switzerland<br />

United States<br />

Netherlands<br />

Belgium<br />

Czech Republic<br />

Spain<br />

Singapore<br />

United Kingdom<br />

Portugal<br />

Bolivia<br />

Turkey<br />

Armenia<br />

Colombia<br />

Kenya<br />

Thailand<br />

Costa Rica<br />

Iceland<br />

Belarus<br />

Moldova<br />

Korea, Rep.<br />

Ukraine<br />

Brazil<br />

–15 –10 –5 0 5 10<br />

Change in labor shares<br />

Source: Karabarbounis and Neiman 2013. Data at http://bit.do<br />

/WDR2016-Fig2_13.

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