Abstract
Since 1945, both Spain and Portugal have experienced significant market transformations. These countries were both led by dictators for many years until the mid 1970s when each moved toward more democratic governments and more open markets. As a result, each experienced significant changes in output with Spain’s becoming a model for proper market based transformations. Although Portugal’s transformation has been less impressive it experienced improvements too. This paper uses a Parente and Prescott (J Polit Econ 102(2), 298–321, 1994; 2000) type model to investigate the recent transformations in each of these countries and quantify the extent to which barriers to technological adoption may have played for these two development experiences. Our results indicate that from 1945 to 2003 these barriers have fallen considerably but remain high, and are somewhat higher in Portugal than in Spain.
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Notes
On p. 299, Parente and Prescott (1994) suggest that these barriers to technology adoption may take a variety of forms such as regulatory and legal constraints, bribes that must be paid, violence or threat of violence, outright sabotage, and worker strikes. Consequently, the higher the barriers, the greater the investment required to implement new technologies.
Using numerical methods, they validated the dynamics of the model and found that higher adoption costs constrain output levels in the long run, raise the magnitude of short run fluctuations, and decrease the convergence speed to the steady state.
Quantitative analysis utilizing data for 127 countries from several sources indicated that differences in social infrastructure caused large disparities in income across countries.
Using 1997 U.N. General Industrial Statistics data for 22 countries, they conclude that technology adoption depends also on supplies of factors of production, as different technologies fit better different factors of production.
Her findings were based on the development experiences of the 124 countries from Maddison’s (2001) dataset.
They found that reduced barriers pre- and post- sanctions and the high barriers during sanctions explained the development of productivity.
Calibrating it to U.S. data, they found that policies inducing lower barriers increase growth.
The model in Parente and Prescott (2000) differs from the one in Parente and Prescott (1994) in that the government is left out and a slightly different modelling form for the barriers is used. Both the Parente and Prescott (2000) and Prescott (2002) papers can be interpreted as reduced form models of the Parente and Prescott (1999) paper.
Because consumers and firms both make choices for hours and capital, one choosing demand and the other choosing supply, we have adopted a convention of using upper case letters to indicate choices made by firms and lower case letters to indicate choices made by consumers to keep clear who is making the choice.
These factor prices are found using an aggregate production function given by \(Y_{t}=\mu _{t}A(\pi )H_{t}^{(1-\theta _{k}-\theta _{z})}K_{t}^{\theta _{k}}Z_{t}{}^{\theta _{z}}\), not the per worker production function given in Eq. 1.
Technology capital is invested in by firms and is not traded in a market.
An alternative way to formulate the budget constraint is to make use of the price relationship summarized by p t to get \(\displaystyle\sum \limits_{t=0}^{\infty}p_{t}\left[ c_{t}+i_{kt}\right] \leq\displaystyle\sum \limits_{t=0}^{\infty}p_{t}\left[ w_{t}h_{t}+r_{kt}k_{t}+V_{ft}\right] .\) The form given in Eq. 9 is more convenient for the solution algorithm described in the appendix. Also note, if one wanted to directly connect Eq. 9 and the multiperiod budget constraint one would have to add to Eq. 9 an intertemporal asset, such as a government bond, which in equilibrium has zero supply. If the intertemporal asset was a government bond, this would mean the government has a balanced budget at each date.
Here we use lower case letters to denote all choice variables because they all come from the representative planner which is a combined consumer and firm problem.
As the authors explained on p. 67, without this principle there would be no discipline to the analysis. Moreover, they demonstrated that this should not raise any controversy as barriers at the plant level lead to differences in TFP at the aggregate level.
The risk free interest rate r is defined by introducing privately issued real bonds into the household budget constraint. These bonds have a zero net supply, and in balance growth the first order condition for bonds implies \(r=\exp(\gamma -\ln\beta)-1.\)
This elasiticity value is relatively low and corresponds to most empirical estimates of the male supply elasticity. Such a value seemed more appropriate for our purposes where the focus is on long run outcomes rather than business cycle outcomes. With more elastic labor supply calibrations, the model will imply bigger changes in labor hours in transitional economies.
Most of these calibration statistics come from Parente and Prescott (2000). The growth rate for per capita GDP in the U.S of 2%, the k t /y t ratio of 2.5, the i kt /y t ratio of 0.20, the after tax interest rate of 5% and the fraction of time devoted to labor of 0.4 come from p. 75, while the average i zt /y t ratio of 0.30 is within the range defined on page 76.
Obvious counter examples abound such as the U.S. and Mexico.
In ancient times, Portugal was actually a part of (what is now known as) the Kingdom of Spain and was formed by Afonso Henriques, son of Teresa of León (daughter of King Alfonso VI of León).
As in Parente and Prescott (1994), both the Spanish, Portuguese and U.S. data were smoothed using the Hodrick–Prescott filter. We used a smoothing parameter of 100.
It should also be noted that most of these lost days were related to “Accidents, Health and Safety”, while Portuguese strikes were driven by “Pay” disputes, so to some extent this lopsided data may not be very reliable for indicating barriers.
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Acknowledgements
We would like to thank seminar participants at the 2nd Annual Meeting of the Portuguese Economic Journal in Évora, Portugal and the 44th Missouri Valley Economics Association Annual Meeting in Kansas City, Missouri, as well as the editor of this journal and an anonymous referee for helpful comments on earlier drafts of this paper. Some of this research was supported by the Spanish Ministry of Education and Science, grant numbers SEJ2006-12793/ECON and SEJ2007-66592-C03-01-02/ECON 2006-2009, Basque Government grants IT-214-07 and GME0702. Cassou would also like to thank Ikerbasque for financial support.
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Mathematical appendix
Mathematical appendix
Because of the unusual interpretation that the labor market situation is located at a boundary, it is easiest to think of the social planning problem as a two step problem where in the first step a representative agent makes all the allocation decisions taking prices as given and then in the second step equilibrium rental rates and wage rates are applied. To this end, the Lagrangian for this problem is
The first order conditions for t = 0,1,... are
Substituting in Eqs. 4, 5 and 6 gives the social planner’s first order conditions for t = 0,1,... of
To find the decision rules we use the method of undetermined coefficients. We guess the functional forms
where a k , a z and a λ are constants to be determined. Substituting these into Eq. 17 and solving for a k gives
Substituting these into Eq. 18 and solving for a z gives
To find the consumption decision rule substitute Eq. 20 and Eq. 21 into Eq. 19 and solve for c t to get
We can interpret (1 − a k − a z ) as the marginal propensity to consume out of income. Note, this is simply the decision rule from the Solow model. To find the labor decision rule we substitute Eq. 15 into Eq. 16 and using Eq. 1 gives get
Now solving for h t gives
Finally, we need to verify that our guess was correct by verifying that a λ is a constant. To do this, substitute Eq. 15 into Eq. 16) to get
Next, substitute Eq. 22 into Eq. 15 to get
Now substituting in Eqs. 23 and 24 and solving for a λ gives
which is a constant and thus confirms our guess.
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Cassou, S.P., Xavier de Oliveira, E. Barriers to technological adoption in Spain and Portugal. Port Econ J 10, 189–209 (2011). https://doi.org/10.1007/s10258-010-0069-1
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DOI: https://doi.org/10.1007/s10258-010-0069-1