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4
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0006251926
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H. Flam, M. Flanders, Eds, MIT Press, Cambridge, MA
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E. Heckscher, B. Ohlin, Heckscher-Ohlin Trade Theory, H. Flam, M. Flanders, Eds. (MIT Press, Cambridge, MA, 1991).
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(1991)
Heckscher-Ohlin Trade Theory
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Heckscher, E.1
Ohlin, B.2
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14
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34547634212
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We use the Balassa definition (25) of revealed comparative advantage Materials and Methods
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We use the Balassa definition (25) of revealed comparative advantage (Materials and Methods).
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15
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34547624123
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Because one country's exports are another country's imports, national statistics can be reconciled this way, and missing data from nonreporting countries can be completed
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Because one country's exports are another country's imports, national statistics can be reconciled this way, and missing data from nonreporting countries can be completed.
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17
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0037199968
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E. Ravasz, A. L. Somera, D. A. Mongru, Z. N. Oltvai, A.-L. Barabási, Science 297, 1551 (2002).
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(2002)
Science
, vol.297
, pp. 1551
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Ravasz, E.1
Somera, A.L.2
Mongru, D.A.3
Oltvai, Z.N.4
Barabási, A.-L.5
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18
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20444504323
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G. Palla, I. Derenyi, I. Frakas, T. Vicsek, Nature 435, 814 (2005).
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(2005)
Nature
, vol.435
, pp. 814
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Palla, G.1
Derenyi, I.2
Frakas, I.3
Vicsek, T.4
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19
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34547646154
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Good introductions to networks are (26, 27).
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Good introductions to networks are (26, 27).
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20
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34547636320
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The network shown here represents the structure of the product space as determined from the 1998-2000 periods. Holding the product space as fixed is a good first approximation, because the dynamics of the network is much slower than the one of countries. The Pearson correlation coefficient (PCC) between the proximity of all links present in this network and the ones obtained from the same network in 1990 and 1985 are 0.69 and 0.66, respectively (SOM text). This indicates that, although the network changes over time, after 15 years the strength of past links still predicts the strength of the current links to a considerable extent.
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The network shown here represents the structure of the product space as determined from the 1998-2000 periods. Holding the product space as fixed is a good first approximation, because the dynamics of the network is much slower than the one of countries. The Pearson correlation coefficient (PCC) between the proximity of all links present in this network and the ones obtained from the same network in 1990 and 1985 are 0.69 and 0.66, respectively (SOM text). This indicates that, although the network changes over time, after 15 years the strength of past links still predicts the strength of the current links to a considerable extent.
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21
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34547624681
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An alternative approach in which the network of trade relationships was studied was undertaken by 28-30
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An alternative approach in which the network of trade relationships was studied was undertaken by (28-30).
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22
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34547637230
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We repeated the same exercise with the rank of proximity instead of proximity itself in order to assess whether what matters is absolute or relative proximity. We found that absolute distance appears to be what matters most. Although transition probability increases linearly with proximity, they decay with rank as a power law. Moreover, the rank effect is stronger for products in sparser parts of the product space, where transitions are also less frequent. Thus, densely connected products can develop RCA through more paths than sparsely connected ones, indicating the importance of absolute proximity
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We repeated the same exercise with the rank of proximity instead of proximity itself in order to assess whether what matters is absolute or relative proximity. We found that absolute distance appears to be what matters most. Although transition probability increases linearly with proximity, they decay with rank as a power law. Moreover, the rank effect is stronger for products in sparser parts of the product space, where transitions are also less frequent. Thus, densely connected products can develop RCA through more paths than sparsely connected ones, indicating the importance of absolute proximity.
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23
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34547629783
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We follow the methodology developed in Hausmann, Hwang, and Rodrik 31, which weighs the GDP per capita of each country exporting that product by the RCA that the country has in that good
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We follow the methodology developed in Hausmann, Hwang, and Rodrik (31), which weighs the GDP per capita of each country exporting that product by the RCA that the country has in that good.
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30
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34547628370
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D. Garlaschelli, T. Di Matteo, T. Aste, G. Caldarelli, M. I. Loffredo, http://arxiv.org/abs/physics/0701030.
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D. Garlaschelli, T. Di Matteo, T. Aste, G. Caldarelli, M. I. Loffredo, http://arxiv.org/abs/physics/0701030.
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32
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34547646511
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We would like to thank the following for valuable comments: P. Aghion, L. Alfaro, O. Blanchard, R. Caballero, O. Galor, E. Helpman, A. Khwaja, J. Lahey, R. Lawrence, D. Lederman, L. Pritchett, R. Rigobon, D. Rodrik, A. Rodriguez-Clare, C. Sabel, E. Stein, F. Sturzenegger, and D. Weil. C.A.H. acknowledges support from the Kellogg Institute at Notre Dame. C.A.H. and A.-L.B. acknowledge support from NSF grants ITR DMR-0426737 and IIS-0513650 and from the James McDonald Foundation 220020084
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We would like to thank the following for valuable comments: P. Aghion, L. Alfaro, O. Blanchard, R. Caballero, O. Galor, E. Helpman, A. Khwaja, J. Lahey, R. Lawrence, D. Lederman, L. Pritchett, R. Rigobon, D. Rodrik, A. Rodriguez-Clare, C. Sabel, E. Stein, F. Sturzenegger, and D. Weil. C.A.H. acknowledges support from the Kellogg Institute at Notre Dame. C.A.H. and A.-L.B. acknowledge support from NSF grants ITR DMR-0426737 and IIS-0513650 and from the James McDonald Foundation 220020084.
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