William Davidson Institute Working Paper 487
Figure 4. Labor productivity levels in the tradable and non-tradable sector (trend)
productivity tradable ----- productivity non-tradable
For the purpose of an additional empirical check of the theory whether the
productivity of the tradable sector is higher than the productivity of the non-tradable
sector (like Halpern and Wyplosz, 2001) we build an index of the relative productivity. In
the whole pattern the ratio of productivity in the tradable sector to that in the non-tradable
sector QT increases (figure 5) and it is above 1.
QNT
Figure 5. Dynamics of relative labor productivity index (trend)
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