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EU industrial structure - EU Bookshop - Europa

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definition of shocks. Shocks, or disturbances, are often<br />

defined as significant changes in variables from underlying<br />

trends. The magnitude of changes is in general determined<br />

using measures of dispersion such as standard deviations.<br />

Shocks could also be defined as unexpected events beyond<br />

the control of industries or the entity in question. See for<br />

example the discussion in Varangis et al. (2004).<br />

Four two‑industry VAR‑models were estimated, consisting<br />

of four variables: labour productivity and employment for<br />

the motor vehicles industry and for one of the other four<br />

industries respectively. 40<br />

Impulse response functions were calculated in order to see<br />

the responses of technology and non‑technology shocks<br />

40 The models are estimated in first differences of the variables since<br />

unit root tests indicated that they were non-stationary. See http://<br />

ec.europa.eu/enterprise/newsroom/cf/_getdocument.cfm?doc_<br />

id=6003 for a detailed description of the methodology and results.<br />

Chapter II — Changes in <strong>EU</strong> Industrial <strong>structure</strong><br />

on employment and productivity growth. The impulse<br />

response functions show how, for example, employment<br />

in the rubber and plastics industries responds to<br />

a one‑percentage technology shock in the motor vehicles<br />

industry. The responses are presented for a time period of<br />

four years (48) months. The responses are shown together<br />

with 90 percent confidence intervals.<br />

The analyses show that a one‑percentage technology shock<br />

originating in the motor vehicles industry has significant<br />

positive and permanent effects on employment in the<br />

rubber and plastics industry, which increases by some 2.5 %.<br />

Productivity in the rubber and plastics industry increases<br />

permanently by some 1.5 % after a technology shock in the<br />

motor vehicles industry, cf. Figure II. 9.<br />

FIgURE II.9: A technology shock in the motor vehicle industry has permanent effects on employment<br />

and productivity in rubber and plastics<br />

Employment productivity<br />

4.5<br />

4.0<br />

3.5<br />

3.0<br />

2.5<br />

2.0<br />

1.5<br />

1.0<br />

0.5<br />

0.0<br />

-0.5<br />

-1.0<br />

lower<br />

upper<br />

response<br />

1<br />

13<br />

25<br />

Source: own calculations using Eurostat data.<br />

37<br />

48<br />

3.5<br />

3.0<br />

2.5<br />

2.0<br />

1.5<br />

1.0<br />

0.5<br />

0.0<br />

lower<br />

upper<br />

response<br />

1<br />

13<br />

25<br />

37<br />

48<br />

53

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