Ricardo Hausmann

2015
Hausmann, R., 2015. What are the Challenges of Economic Growth?.
Hausmann, R., 2015. What Should We Do About Inequality?.
Evidence That Calls-Based and Mobility Networks Are Isomorphic
Coscia, M. & Hausmann, R., 2015. Evidence That Calls-Based and Mobility Networks Are Isomorphic. PLOS One , 10. Publisher's VersionAbstract

Social relations involve both face-to-face interaction as well as telecommunications. We can observe the geography of phone calls and of the mobility of cell phones in space. These two phenomena can be described as networks of connections between different points in space. We use a dataset that includes billions of phone calls made in Colombia during a six-month period. We draw the two networks and find that the call-based network resembles a higher order aggregation of the mobility network and that both are isomorphic except for a higher spatial decay coefficient of the mobility network relative to the call-based network: when we discount distance effects on the call connections with the same decay observed for mobility connections, the two networks are virtually indistinguishable.

Hausmann, R., Espinoza, L. & Santos, M.A., 2015. Chiapas Growth Diagnosis: The Trap of Low Productivity.Abstract

Chiapas is not only the lowest per capita entity in Mexico, but also the one that has grown the least during the last decade. As a result, the gap that separates it from the rest of the country has been widening significantly. This performance contrasts with the environment of relative macroeconomic and institutional stability that has prevailed during this period.

The low level of income in Chiapas is consistent with the inability of the state to produce things that it can sell beyond its limits. Its per capita exports are among the lowest in Mexico and are concentrated in a series of agricultural primary products, which are traded in highly competitive markets with very low margins.

What are the reasons behind Chiapas' poor economic performance? This document follows the growth diagnosis methodology developed by Hausmann, Rodrik and Velasco (2005), adapting it to a sub-national context. Our objective remains the same: to identify the main constraints to economic growth in Chiapas.

According to the results of our analysis, the main restrictions on the growth of the state are not found in any of the usual suspects. Low levels of education to some extent are associated with the backwardness of Chiapas, but barely enough to explain a small part of the gap. The orography and the climate of Chiapas represent a challenge for the lifting and maintenance of its infrastructure, but the latter does not appear as the main restriction to the development of its productive fabric. There is also no evidence of credit market failures. The low levels of private credit in Chiapas are more associated with the low productivity of the economic activities carried out there than with bottlenecks or insufficiencies in the supply of financing.

Our conclusion is that Chiapas is in a (low) productivity trap. Its main problem is that it has an economy of very low complexity or sophistication, which reflects its few productive capacities. Modern production systems require a number of complementary inputs that are absent in Chiapas. In this context, productive diversity and private investment are low because returns to investment are also very low. Since the demand derived from private investment is low, it inhibits the emergence of a supply of complementary inputs, giving rise to a problem of coordination similar to that of the egg and the hen. Solving this coordination problem requires state intervention. Some of the few cases of manufactured exports that exist in Chiapas have resulted from successful state interventions to coordinate the existence of inputs needed for production with the demand for them. This feature provides the supporting argument that justifies the creation of Special Economic Zones.

In Chiapas, this situation is further aggravated by the combination of three factors: (1) high government transfers, (2) lack of public transportation and (3) low educational level.

Government transfers have effects similar to those identified in the economic literature of the Dutch disease: to increase the relative costs of tradable goods by tilting economic activity to the non-tradable sectors. The absence of a public transport system directly reduces the net benefit of working in the city if you live in the countryside. Thus, a dual equilibrium has been established with significant differences between wages across the entire range of professions and occupations between cities and their nearest rural communities. Finally, although Chiapas has gradually closed the educational gap that separates it from the rest of the country, there are still significant differences. In our opinion, This gap is due to the fact that the decision to accumulate years of schooling is partly endogenous to the returns obtained from education. Seen this way, education gaps would be a mirror of the differences in terms of production methods that predominate in Chiapas, in contrast to the rest of the country. For this reason, we observe that while returns to education are higher in Chiapas, it is more profitable for each educational level to emigrate (to a place where there are other complementary inputs that make higher productivity and a higher salary possible) than to stay in work the entity. Chiapas emigrants, although few, receive similar incomes to workers with the same level of education at the destination. Education gaps would be a mirror of the differences in terms of production methods that predominate in Chiapas, in contrast to the rest of the country. For this reason, we observe that while returns to education are higher in Chiapas, it is more profitable for each educational level to emigrate (to a place where there are other complementary inputs that make higher productivity and a higher salary possible) than to stay in work the entity. Chiapas emigrants, although few, receive similar incomes to workers with the same level of education at the destination. Education gaps would be a mirror of the differences in terms of production methods that predominate in Chiapas, in contrast to the rest of the country. For this reason, we observe that while returns to education are higher in Chiapas, it is more profitable for each educational level to emigrate (to a place where there are other complementary inputs that make higher productivity and a higher salary possible) than to stay in work the entity. Chiapas emigrants, although few, receive similar incomes to workers with the same level of education at the destination. For each educational level it is more profitable to emigrate (to a place where other complementary inputs exist that make possible a greater productivity and a higher salary) than to stay to work in the entity. Chiapas emigrants, although few, receive similar incomes to workers with the same level of education at the destination. For each educational level it is more profitable to emigrate (to a place where other complementary inputs exist that make possible a greater productivity and a higher salary) than to stay to work in the entity. Chiapas emigrants, although few, receive similar incomes to workers with the same level of education at the destination.

The policy implications of this diagnosis point to the need to take advantage of the knowledge that already exists in the greater populated centers of Chiapas and in the rest of Mexico to promote diversification towards other more complex activities that can build upon the capacities already Existing in the area. The creation of a public transport system linking the rural communities surrounding the city could solve the constraint of labor shortages, while opening up greater urban employment opportunities for the inhabitants of neighboring rural communities. This is a typical example of the egg and chicken dynamics that prevails in Chiapas, since a minimum scale of operation is required for the creation of an efficient public transport system,

Our prescription suggests that we take the mountain to Muhammad, since Muhammad has not gone to the mountain. That is to say, to try to solve the problems of coordination through an intervention that approaches the work opportunities to where the workers are, given that under the current conditions the latter do not find it profitable to get closer to where the job opportunities are. There are rural areas with low participation rates and high poverty rates in the neighborhood of San Cristóbal de las Casas. This is also a region where there is a lot of uncertainty for private economic activity, since the existence of ejido territories of community ownership predominates there. One implication of our analysis could be to create an Industrial Park around San Cristóbal, That solves the lack of public goods that has kept away the private economic activity (legal insecurity, difficulty to get land, social unrest), and at the same time bring the companies where the available labor is. The experience within Chiapas of companies like Arnecom-Yazaki indicates that with short training periods, workers could be integrated into relatively modern systems and deal productively.

This solution is a step on which we can enter a sustained development dynamic, through successive improvements in productivity derived from the transformation of production and the progressive adoption of more modern production systems. To grow, Chiapas must start by learning to do things that are already produced in the rest of Mexico and can sell out of the state. From there, the economic fabric and knowledge associated with more modern methods of production will be created, and from there gradually the export capacity can be developed and more complex activities can be developed. This process requires coordination between the different actors, government (national and regional), private sector, and academia, with the aim of proactively seeking adjacent activities,

chiapas_diagnostics_cidwp304_spanish.pdf chiapas_diagnostics_cidwp304_english.pdf
Hausmann, R., Cheston, T. & Santos, M.A., 2015. La Complejidad Economica de Chiapas.Abstract

Chiapas es el estado más pobre de México, y también el menos diversificado en su estructura productiva. Según los hallazgos de este reporte, esa dualidad no es una coincidencia casual. La escasa complejidad económica de Chiapas, medida tanto por la escasa sofisticación de sus exportaciones como por la exigua diversidad en la composición de su empleo, es uno de los factores asociados a sus bajos niveles de ingreso y escaso crecimiento. Para cambiar el patrón de crecimiento de Chiapas es necesario cambiar su estructura de producción, haciéndola más compleja y sofisticada.

Afortunadamente, existe un enorme potencial para que diferentes lugares de Chiapas se muevan de manera gradual hacia productos e industrias de mayor sofisticación, con base en el conocimiento con el que ya cuentan hoy en día. No todos los lugares tienen el mismo potencial; la diversidad de capacidades productivas que existe en México se reproduce hacia el interior de Chiapas de manera fractal. Nuestros análisis indican que la variedad de niveles de ingresos hacia adentro de las regiones sigue siendo mayor que las diferencias entre los promedios de esas regiones. Esta característica justifica la utilización de un enfoque municipal, centrado en aquellas zonas urbanas de mayor población, con suficiente diversidad y sofisticación como para justificar un análisis de productos e industrias “adyacentes” de mayor complejidad que requieran capacidades similares a las ya existentes. Este enfoque reconoce que la esperanza en el corto plazo para muchos ciudadanos que no habitan en la vecindad de las regiones más sofisticadas del estado está en la posibilidad de moverse gradualmente hacia niveles de productividad agrícola más alta.

En este reporte se identifican cuáles son los productos e industrias que ofrecen las mejores posibilidades de diversificación productiva para incrementar la complejidad económica de cuatro de los municipios más complejos de Chiapas, considerando sus capacidades iniciales. Como resultado, se presenta un resumen diferenciado de las principales posibilidades y los retos que debe superar cada lugar para capitalizarlas. Comitán de Domínguez debe centrarse en resolver restricciones logísticas asociadas a conflictos sociales para capitalizar sus posibilidades como destino turístico de alto nivel, y desarrollar una base de fabricación de artículos para el hogar y textiles. San Cristóbal de las Casas está bien posicionado para aprovechar las habilidades desarrolladas en la producción de artesanías y transferirlas a la de textiles sofisticados, en adición a nuevas oportunidades en recubrimientos metálicos, y fabricación de alimentos y bebidas. Para materializar el potencial de Tuxtla Gutiérrez se requiere reconvertir ese amplio sector de servicios que responde a la demanda creada por el gasto público en la capital del estado, en una base de manufacturas más diversa.  Los principales candidatos para movilizar esa transformación productiva son los sectores de textiles y peletería, procesamiento de alimentos, y ciertas categorías particulares de maquinaria por línea de producción.

De todas las regiones de Chiapas, Tapachula es la que posee mayor potencial para expandir su base exportadora hacia productos de mayor complejidad. La región concentra la mayoría de las exportaciones del estado, y cuenta con la creación de la Zona Económica Especial (ZEE) y su parque industrial que permiten abordar nuevas capacidades productivas más complejas y adyacentes. Se identifica el potencial de los productos plásticos, de pinturas y películas, y de metalurgia, de relojes y equipos de soldadura, como unas oportunidades únicas en el estado para promover su transformación productiva.

Nuestro reporte concluye con una reflexión sobre la necesidad de traducir la identificación de los potenciales de cada una de las regiones en una realidad distinta, en una economía diversa, compleja, y próspera. La transformación productiva de Chiapas comenzará por la mejora de la productividad agrícola y la creación de oportunidades en las zonas urbanas que permiten aglomeraciones de conocimientos diversos en firmas complejas. El crecimiento económico en Chiapas no requiere innovación, sino más bien de que el estado aprenda del resto de México a producir de manera eficiente los bienes que el resto del país ya produce.  

Esta posibilidad exige a su vez de la existencia de un sector público capaz de convocar a firmas existentes, y otras que ya operan en el resto de México, para inaugurar nuevas facilidades de producción en Chiapas, combinando nuevas tecnologías y conocimientos con los que ya existen en la región. Así, se va desarrollando de forma gradual la densidad de su tejido productivo y diversidad económica. En última instancia, la clave para capitalizar el enorme potencial de Chiapas está en un cambio en la orientación del discurso productivo, que priorice la diversificación de la economía y la conquista gradual de sectores de mayor complejidad como herramienta para promover el crecimiento inclusivo.

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Levy, D., et al., 2015. Why is Chiapas Poor?.Abstract

Chiapas es, comoquiera que se le mire, el estado más atrasado de México. Su ingreso por habitante es el más bajo de las 32 entidades federativas, apenas 40% de la media nacional. Su tasa de crecimiento durante la década 2003-2013 también fue la más baja (0,2%), por lo que la brecha que lo separa del promedio nacional creció de 53% a 60%. Eso quiere decir que hoy en día el ingreso promedio de una entidad federal en México está dos veces y media por encima de Chiapas. Los dos estados que le siguen, Oaxaca y Guerrero, están 25% y 30% por encima de Chiapas2. De acuerdo con el Instituto Nacional de Estadística y Geografía de México (INEGI), Chiapas es también el estado de mayor pobreza (74,7%) y pobreza extrema (46,7%).

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Hausmann, R. & Chauvin, J., 2015. Moving to the Adjacent Possible: Discovering Paths for Export Diversification in Rwanda.Abstract

How can Rwanda, which currently has one of the lowest levels of income and exports per capita in the world, grow and diversify its economy in presence of significant constraints? We analyze Rwanda's historical growth and trade performance and find that Rwanda's high transportation costs and limited productive knowledge have held back greater export development and have resulted in excessive rural density. Three basic commodities – coffee, tea, and tin – made up more than 80 percent of the country's exports through its history and still drive the bulk of export growth today. Given Rwanda’s high population density and associated land scarcity, these traditional exports cannot create enough jobs for its growing population, or sustainably drive future growth. Rwanda needs new, scalable activities in urban areas. In this report, we identify a strategy for greater diversification of exports in Rwanda that circumvents the key constraints and is separately tailored for regional and global export destinations. Our results identify more than 100 tradable products that lie at Rwanda's knowledge frontier, are not intensive in Rwanda's scarce resources, and economize on transportation costs. Our analysis produces a vision of a more diversified Rwanda, which can be used as a guide for investment promotion decisions. We illustrate an approach that can be applied to other settings in order to identify opportunities for export diversification that take seriously local constraints and external market opportunities.

hausmann_chauvin_rwanda_294.pdf
2014
Bahar, D., Hausmann, R. & Hidalgo, C., 2014. Neighbors and the evolution of the comparative advantage of nations: Evidence of international knowledge diffusion?. Journal of International Economics , 92 (1). Publisher's VersionAbstract
The literature on knowledge diffusion shows that knowledge decays strongly with distance. 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. For existing products, growth of exports in a country is 1.5% higher per annum if it has a neighbor with comparative advantage in these products. While these results could be driven by a common third factor that escapes our controls, they align with our expectations of the localized character of knowledge diffusion.
Hausmann, R., Ganguli, I. & Viarengo, M., 2014. Marriage, Education, and Assortative Mating in Latin America. Applied Economic Letters , 21 (12) , pp. 806-811. Publisher's VersionAbstract
In this article, we establish facts related to marriage and education in Latin American countries. Using census data from IPUMS International, we show how marriage and assortative mating patterns have changed from 1980 to 2000 and how the patterns in Latin America compare to the United States. We find that in Latin American countries, highly educated individuals are less likely to be married than the less educated, and the pattern is stronger for women. We also show that while it has been increasing over time, there is less positive assortative mating in Latin America than in the United States.
Hausmann, R., Ganguli, I. & Viarengo, M., 2014. Closing the gender gap in education: What is the state of gaps in labour force participation for women, wives and mothers?. International Labor Review , 153 (2) , pp. 173-207. Publisher's VersionAbstract

The educational gender gap has closed or reversed in many countries. But what of gendered labour market inequalities? Using micro‐level census data for some 40 countries, the authors examine the labour force participation gap between men and women, the “marriage gap” between married and single women's participation, and the “motherhood gap” between mothers' and non‐mothers' participation. They find significant heterogeneity among countries in terms of the size of these gaps, the speed at which they are changing, and the relationships between them and the educational gap. But counterfactual regression analysis shows that the labour force participation gap remains largely unexplained by the other gaps.

Hausmann, R., et al., 2014. How should Uganda grow?.Abstract

Income per capita in Uganda has doubled in the last 20 years. This remarkable performance has been buoyed by significant aid flows and large external imbalances. Economic growth has been concentrated in non-tradable activities leading to growing external imbalances and a growing gap between rural and urban incomes. Future growth will depend on achieving sufficient export dynamism. In addition, growth faces a number of other challenges: low urbanization rate, rapid rural population growth and high dependency ratios. However, both the dependency ratio and fertility rates have begun to decline recently. Rural areas are also severely overcrowded with low-productivity subsistence agriculture as a pervasive form of production. Commercial agriculture has great possibilities to increase output, but as the sector improves its access to capital, inputs and technology it will shed jobs rather than create them.

These challenges combined tell us that future growth in Uganda will require a rapid rate of export growth and economic diversification. The country faces the prospect of an oil boom of uncertain size and timing. It could represent an important stepping stone to achieve external sustainability, expanded income and infrastructure and a greater internal market. However, as with all oil booms, the challenges include avoiding the Dutch disease, managing the inevitable volatility in oil incomes and avoiding inefficient specialization in oil. Policies that set targets for the non-oil deficit could help manage some of these effects, but a conscious strategy to diversify would still be needed.

The best strategy is therefore to use the additional oil revenue and accompanying investments to promote a diversification strategy that is sustainable. To determine how to encourage such a transformation, we draw on a new line of research that demonstrates how development seldom implies producing more of the same. Instead, as countries grow, they tend to move into new industries, while they also increase productivity in existing sectors. In this report, we analyze what those new industries might be for Uganda.

To do so, we first look to those products which balance the desire to increase the diversification and complexity of production, while not over-stretching existing capabilities. These include mostly agricultural inputs, such as agrochemicals and food processing. In addition, Uganda should concurrently develop more complex industries, such as construction materials, that are reasonably within reach of current capabilities and will be in great demand in the context of an oil boom. Here, the fact that Uganda is landlocked and faces high import costs will provide natural protection to the expanding demand in Uganda and neighboring countries. We conclude with a discussion of the government policies that will support Uganda in developing new tradable industries.

cid_working_paper_275.pdf
Hausmann, R., et al., 2014. Implied Comparative Advantage. CID Working Paper , 276.Abstract

The comparative advantage of a location shapes its industrial structure. Current theoretical models based on this principle do not take a stance on how comparative advantages in different industries or locations are related with each other, or what such patterns of relatedness might imply about the underlying process that governs the evolution of comparative advantage. We build a simple Ricardian-inspired model and show this hidden information on inter-industry and inter-location relatedness can be captured by simple correlations between the observed patterns of industries across locations or locations across industries. Using the information from related industries or related locations, we calculate the implied comparative advantage and show that this measure explains much of the location’s current industrial structure. We give evidence that these patterns are present in a wide variety of contexts, namely the export of goods (internationally) and the employment, payroll and number of establishments across the industries of subnational regions (in the US, Chile and India). The deviations between the observed and implied comparative advantage measures tend to be highly predictive of future industry growth, especially at horizons of a decade or more; this explanatory power holds at both the intensive as well as the extensive margin. These results suggest that a component of the long-term evolution of comparative advantage is already implied in today’s patterns of production.

2020-07-cid-wp-276-revised-implied-comparative-advantage.pdf
Revised July 2020.
2013
The Atlas of Economic Complexity: Mapping Paths to Prosperity
Hausmann, R., et al., 2013. The Atlas of Economic Complexity: Mapping Paths to Prosperity 2nd ed., Cambridge: MIT Press. Publisher's VersionAbstract

From the foreword:

It has been two years since we published the first edition of The Atlas of Economic Complexity. "The Atlas," as we have come to refer to it, has helped extend the availability of tools and methods that can be used to study the productive structure of countries and its evolution.

Many things have happened since the first edition of The Atlas was released at CID's Global Empowerment Meeting, on October 27, 2011. The new edition has sharpened the theory and empirical evidence of how knowhow affects income and growth and how knowhow itself grows over time. In this edition, we also update our numbers to 2010, thus adding two more years of data and extending our projections. We also undertook a major overhaul of the data. Sebastián Bustos and Muhammed Yildirim went back to the original sources and created a new dataset that significantly improves on the one used for the 2011 edition. They developed a new technique to clean the data, reducing inconsistencies and the problems caused by misreporting. The new dataset provides a more accurate estimate of the complexity of each country and each product. With this improved dataset, our results are even stronger.

All in all, the new version of The Atlas provides a more accurate picture of each country’s economy, its "adjacent possible" and its future growth potential.

For up-to-date datasets and new visualizations, visit atlas.cid.harvard.edu.

 

atlas_2013_part1.pdf
Coscia, M., Hausmann, R. & Hidalgo, C.A., 2013. The Structure and Dynamics of International Development Assistance. Journal of Globalization and Development , 3 (2) , pp. 1-42. Publisher's VersionAbstract

We study the structure of international aid coordination by creating and analyzing a tripartite network of donor organizations, recipient countries and development issues using web-based information. We develop a measure of coordination and find that it is moderate, achieving about 60% of its theoretical maximum. Many countries are strongly connected to organizations that are related to the issues that are salient there. Nevertheless, we identify many countries that are poorly served, issues that are inadequately attended to, and organizations that focus on the wrong combination of places and issues. Our approach may be used to improve decentralized coordination.

Hausmann, R., Dell’Erba, S. & Panizza, U., 2013. Debt Levels, Debt Composition, and Sovereign Spreads in Emerging and Advanced Economies.Abstract

This paper studies the relationship between sovereign spreads and the interaction between debt composition and debt levels in advanced and emerging market countries. It finds that in emerging market countries there is a significant correlation between spreads and debt levels. This correlation, however, is not statistically significant in countries where most public debt is denominated in local currency. In advanced economies, the magnitude of the correlation between debt levels and spreads is about one fifth of the corresponding correlation for emerging market economies. In Eurozone countries, however, the correlation between spreads and debt ratios is similar to that of emerging market countries. The paper also shows that the financial crisis amplified the relationship between spreads and debt levels within the Eurozone but had no effect on the relationship between spreads and debt in standalone countries. Finally, the paper shows that the relationship between debt levels and spreads is amplified by the presence of large net foreign liabilities. This amplifying effect of net foreign liabilities is larger in the Eurozone than in standalone advanced economies. The paper concludes that debt composition matters and corroborates the original sin hypothesis that, rather than being a mere reflection of institutional weaknesses, the presence of foreign currency debt increases financial fragility and leads to suboptimal macroeconomic policies.

cid_working_paper_263.pdf
2012
Hausmann, R. & Bustos, S., 2012. Structural Transformation in Egypt, Morocco, and Tunisia: A Comparison with China, South Korea, and Thailand. In African Development Bank, pp. 15-68. Publisher's VersionAbstract

Countries seldom grow rich by producing more of the same. Development implies changes in what countries produce. Structural transformation is the process by which countries move into new economic activities. In turn, new economic activities are the ones that are able to achieve higher levels of productivity, pay higher wages and increase the level of prosperity of a country’s population. Structural transformation is crucial for economic growth: countries that are able to upgrade their production and exports by moving into new and more complex economic activities tend to grow faster.

Bustos, S., et al., 2012. The Dynamics of Nestedness Predicts the Evolution of Industrial Ecosystems. PLoS ONE , 7 (11) , pp. 1-8. Publisher's VersionAbstract

In economic systems, the mix of products that countries make or export has been shown to be a strong leading indicator of economic growth. Hence, methods to characterize and predict the structure of the network connecting countries to the products that they export are relevant for understanding the dynamics of economic development. Here we study the presence and absence of industries in international and domestic economies and show that these networks are significantly nested. This means that the less filled rows and columns of these networks' adjacency matrices tend to be subsets of the fuller rows and columns. Moreover, we show that their nestedness remains constant over time and that it is sustained by both, a bias for industries that deviate from the networks' nestedness to disappear, and a bias for the industries that are missing according to nestedness to appear. This makes the appearance and disappearance of individual industries in each location predictable. We interpret the high level of nestedness observed in these networks in the context of the neutral model of development introduced by Hidalgo and Hausmann (2009). We show that the model can reproduce the high level of nestedness observed in these networks only when we assume a high level of heterogeneity in the distribution of capabilities available in countries and required by products. In the context of the neutral model, this implies that the high level of nestedness observed in these economic networks emerges as a combination of both, the complementarity of inputs and heterogeneity in the number of capabilities available in countries and required by products. The stability of nestedness in industrial ecosystems, and the predictability implied by it, demonstrates the importance of the study of network properties in the evolution of economic networks.

 

journal.pone_.0049393.pdf
Klimek, P., Hausmann, R. & Thurner, S., 2012. Empirical Confirmation of Creative Destruction from World Trade Data. PLoS ONE , 7 (6). Publisher's VersionAbstract

We show that world trade network datasets contain empirical evidence that the dynamics of innovation in the world economy indeed follows the concept of creative destruction, as proposed by J.A. Schumpeter more than half a century ago. National economies can be viewed as complex, evolving systems, driven by a stream of appearance and disappearance of goods and services. Products appear in bursts of creative cascades. We find that products systematically tend to co-appear, and that product appearances lead to massive disappearance events of existing products in the following years. The opposite–disappearances followed by periods of appearances–is not observed. This is an empirical validation of the dominance of cascading competitive replacement events on the scale of national economies, i.e., creative destruction. We find a tendency that more complex products drive out less complex ones, i.e., progress has a direction. Finally we show that the growth trajectory of a country’s product output diversity can be understood by a recently proposed evolutionary model of Schumpeterian economic dynamics.

 

journal.pone_.0038924.pdf
Bustos, S., et al., 2012. The Dynamics of Nestedness Predicts the Evolution of Industrial Ecosystems.Abstract

Decades of research in ecology have shown that nestedness is a ubiquitous characteristic of both, biological and economic ecosystems. The dynamics of nestedness, however, have rarely been observed. Here we show that the nestedness of both, the network connecting countries to the products that they export and the network connecting municipalities to the industries that are present in them, remains constant over time. Moreover, we find that the conservation of nestedness is sustained by both, a bias for industries that deviate from the networks' nestedness to disappear, and a bias for the industries that are missing according to nestedness to appear. This makes the appearance and disappearance of individual industries in each location predictable. The conservation of nestedness in industrial ecosystems, and the predictability implied by it, demonstrates the importance of industrial ecosystems in the long term survival of economic activities.

cid_working_paper_236.pdf
Klimek, P., Hausmann, R. & Thurner, S., 2012. Empirical Confirmation of Creative Destruction from World Trade Data.Abstract

We show that world trade network datasets contain empirical evidence that the dynamics of innovation in the world economy follows indeed the concept of creative destruction, as proposed by J.A. Schumpeter more than half a century ago. National economies can be viewed as complex, evolving systems, driven by a stream of appearance and disappearance of goods and services. Products appear in bursts of creative cascades. We find that products systematically tend to co-appear, and that product appearances lead to massive disappearance events of existing products in the following years. The opposite – disappearances followed by periods of appearances – is not observed. This is an empirical validation of the dominance of cascading competitive replacement events on the scale of national economies, i.e. creative destruction. We find a tendency that more complex products drive out less complex ones, i.e. progress has a direction. Finally we show that the growth trajectory of a country’s product output diversity can be understood by a recently proposed evolutionary model of Schumpeterian economic dynamics.

cid_working_paper_238.pdf

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