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with Verdoorn’s law. The trend surfaces start in three years (1996, 1997, partly 1999)
with a north-south stripe of high values along the western border. In other three years
(1993, 1998, 2000) the trend is emanating inward from mounds in the north-west and
south-east of the country.
Figure 6.1: Verdoorn’s law: scatterplots with regression lines
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