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Hidalgo, C

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Hidalgo

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Hidalgo, C

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2009 - 200912010 - 20121

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Author's Publications: search.filters.isAuthorOfPublication.6deadfca-f990-4888-b093-4731f4b102ec

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    International Knowledge Diffusion and the Comparative Advantage of Nations
    (John F. Kennedy School of Government, Harvard University, 2012) Bahar, Dany; Hausmann, Ricardo; Hidalgo, C
    In this paper we document that the probability that a product is added to a country’s export basket is, on average, 65% larger if a neighboring country is a successful exporter of that same product. We interpret our result as evidence of international intra-industry knowledge diffusion. Our results are consistent with the overall consensus in the literature on technology spillovers: diffusion is stronger at shorter distances; is weaker for more knowledge-intensive products; and has become faster over time.
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    A Dynamic Network Approach for the Study of Human Phenotypes
    (Public Library of Science, 2009) Hidalgo, C; Blumm, Nicholas; Barabási, Albert-­‐László; Christakis, Nicholas A.
    The use of networks to integrate different genetic, proteomic, and metabolic datasets has been proposed as a viable path toward elucidating the origins of specific diseases. Here we introduce a new phenotypic database summarizing correlations obtained from the disease history of more than 30 million patients in a Phenotypic Disease Network (PDN). We present evidence that the structure of the PDN is relevant to the understanding of illness progression by showing that (1) patients develop diseases close in the network to those they already have; (2) the progression of disease along the links of the network is different for patients of different genders and ethnicities; (3) patients diagnosed with diseases which are more highly connected in the PDN tend to die sooner than those affected by less connected diseases; and (4) diseases that tend to be preceded by others in the PDN tend to be more connected than diseases that precede other illnesses, and are associated with higher degrees of mortality. Our findings show that disease progression can be represented and studied using network methods, offering the potential to enhance our understanding of the origin and evolution of human diseases. The dataset introduced here, released concurrently with this publication, represents the largest relational phenotypic resource publicly available to the research community.