Anne-Célia Disdier

This paper identifies export accelerations at the country pair-product level that are large enough to drive aggregate export growth in the medium run. In a sample of 100 countries, these export “big hits” are rare, less than 2 percent of all export spells, yet account for over two-thirds of export growth in a given country. The paper then explores their microfoundations using matched customs-census firm-level data for France. We find that typically, two firms are sufficient to generate a big hit and these firms’ access to external financing is key to their ability to drive export success. Moreover, big hits spread within firms across destinations and products. Our results offer new evidence on the granularity of export growth by linking micro-level entrepreneurial decisions with country-level export outcomes.

Les normes améliorent‐elles la qualité des produits échangés? Nous nous demandons si les normes augmentent la qualité des produits échangés. En appariant un ensemble de données sur les exportations entreprise‐produit‐destination françaises avec un ensemble de données sur les mesures sanitaires et phytosanitaires et les obstacles techniques au commerce, nous constatons que les normes de qualité appliquées aux produits par les pays de destination i) favorisent la probabilité d’exportation des entreprises de haute qualité à condition que leur productivité soit suffisamment élevée, ii) augmentent les ventes à l’exportation des entreprises de haute qualité à forte productivité au détriment des entreprises à faible productivité et de faible qualité, et iii) augmentent la qualité fournie par les entreprises si leur productivité est suffisamment élevée. Nous élaborons ensuite un nouveau modèle commercial simple en cas d’incertitude sur la qualité du produit, dans lequel des entreprises hétérogènes peuvent investir stratégiquement dans l’indication de la qualité afin de rationaliser ces résultats empiriques sur la qualité et les effets de sélection.

Introduction There is a lack of quantitative evidence on the role of food innovations—new food ingredients and processing techniques—in the nutrition transition. Objective Document the distribution of food innovations across 67 high-income (HIC) and middle-income (MIC) countries between 1970 and 2010, and its association with the nutritional composition of food supply. Methods We used all available data on food patents, as compiled by the European Patent Office, to measure food innovations. We considered innovations directly received by countries from inventors seeking protection in their territories, and those embedded in processed food imports. Food and Agricultural Organization data were used to estimate the associations between international diffusion of food innovations and trends in total food supply and its macronutrient composition, after adjusting for confounding trends in demand-side factors. We identified the role of trade by simulating the changes in average diet due to innovations embedded in food imports. Results Trends in food innovations were positively and significantly associated with changes in daily per capita calorie supply available for human consumption in MIC between 1990 and 2010 (elasticity of 0.027, 95% CI 0.019 to 0.036). Food innovations were positively correlated with the share of animal and free fats in total food supply (elasticities of 0.044, 95% CI 0.030 to 0.058 for MIC between 1970 and 1989 and 0.023, 95% CI 0.003 to 0.043 for HIC between 1990 and 2010). Food innovations were associated with substitutions from complex carbohydrates towards sugars in total food supply for MIC after 1990 (elasticities of −0.037, 95% CI −0.045 to −0.029 for complex carbs, 0.082, 95% CI 0.066 to 0.098 for sugars). For these countries, the trade channel capturing access to innovations through imports of processed food played a key role. Conclusion Policy-makers should consider the impacts of the international diffusion of food innovations in assessing the costs and benefits of international trade regulations.

Nous présentons un modèle d’investissement en recherche et développement (R&D) dans le domaine alimentaire, en prenant en considération les nouvelles techniques d’ingénierie végétale (NTIV) et les méthodes d’hybridation traditionnelles. Le modèle intègre une innovation alimentaire incertaine et coûteuse, ainsi que les consentements à payer des consommateurs (CAP) pour le nouvel aliment. Ce cadre conceptuel est appliqué au cas de nouvelles pommes se conservant plus longtemps et brunissant moins vite, en prenant en compte les CAP des consommateurs français et américains pour ces nouvelles pommes. Il est montré que les NTIV peuvent être socialement bénéfiques dans un contexte d’information complète, et lorsque la probabilité de succès avec ces NTIV est relativement élevée. Sinon, l’hybridation traditionnelle est socialement optimale. Une menace importante sur la production des pommes conventionnelles augmente la désirabilité sociale de nouvelles pommes générées par les NTIV ou l’hybridation traditionnelle.

Les nouvelles techniques d’ingénierie végétale (NTIV) peuvent améliorer considérablement la production et la qualité des aliments. Certains consommateurs et régulateurs du monde entier pourraient être réticents à accepter de tels produits et l’introduction de ces produits sur le marché mondial pourrait rester faible. Nous développons un modèle économique prenants en compte l’investissement en R&D dans les innovations alimentaires afin d’identifier les conditions dans lesquelles la technologie NTIV émerge dans un contexte de commerce international. Le cadre intègre le consentement à payer des consommateurs (CAP) pour le nouvel aliment, l’incertitude des processus de R&D, le coût réglementaire associé à l’approbation et la concurrence entre les produits nationaux et étrangers. Le modèle permet l’analyse quantitative de l’apparition de nouveaux aliments qui pourraient être introduits sur les marchés puis commercialisés au-delà des frontières. Nous appliquons le modèle à un cas hypothétique de pommes améliorées avec des NTIV. Les résultats de la simulation suggèrent que les interdictions d’importation et les valeurs élevées de coûts fixes peuvent réduire les investissements en R&D dans les NTIV à des niveaux sous-optimaux.

Public procurement represents a substantial share of gross domestic product (GDP) in many countries, and is notoriously home-biased as a result of often opaque practices. However, little is known about the determinants of restrictions on public procurement policies. To explore this issue, we map information from the Global Trade Alert (GTA) database on regulatory obstacles to public procurement alongside international trade flows at the country pair-product level and applied bilateral tariffs. Considering the universe of restrictions introduced over the period 2009-2016 by importers on exporters and products, we highlight three novel facts. First, the main foreign providers are not the most targeted, suggesting long-term contractual relationships between buyers and sellers in public markets. Second, the ear of retaliation is alleviating the protectionist pressure in the importer country. Third, we document substitutability between public procurement restrictions and tariffs.

New Plant Engineering Techniques (NPETs) may significantly improve both production and quality of foods. Consumers and regulators around the world might be reluctant to accept such products, which may cripple adoption and global market penetration of these products. We develop a parsimonious economic model for R&D investment in food innovations to identify conditions under which NPET technology emerges in a context of international trade. The framework integrates consumers’ willingness to pay (WTP) for the new food, the uncertainty of R&D processes, the associated regulatory cost of approval, and the competition between domestic and foreign products. With generic applicability, the model enables the quantitative analysis of new foods that could be introduced in markets and then traded across borders. We apply the framework to a hypothetical case of apples improved with NPETs. Simulation results suggest that import bans and high values of sunk costs can reduce R&D investment in NPETs to suboptimal levels.

We compare consumers’ attitude towards and willingness to pay (WTP) for gene-edited (GE) apples in Europe and the US. Using hypothetical choices in a lab and different technology messages, we estimate WTP of 162 French and 166 US consumers for new apples, which do not brown upon being sliced or cut. Messages center on (i) the social and private benefits of having the new apples, and (ii) possible technologies leading to this new benefit (conventional hybrids, GE, and genetically modified (GMO)). French consumers do not value the innovation and actually discount it when it is generated via biotechnology. US consumers do value the innovation as long as it is not generated by biotechnology. In both countries, the steepest discount is for GMO apples, followed by GE apples. Furthermore, the discounting occurs through “boycott” consumers who dislike biotechnology. However, the discounting is weaker for US consumers compared to French consumers. Favorable attitudes towards sciences and new technology totally offset the discounting of GE apples.

New Plant Engineering Techniques (NPETs) have path-breaking potential to improve foods by strengthening their production, increasing resistance to biotic and abiotic stresses, and by bettering their appearance and nutritional quality. Can NPETs-based foods succeed in the marketplace? Providing answers to this question, we first develop a simple economic model for R&D investment in food innovations based on NPETs and traditional hybridization methods, to identify which technology emerges under various parameter characterizations and associated economic welfare outcomes. The framework combines the cost of food innovation with consumers’ willingness to pay (WTP) for the new food, highlighting the uncertain and costly nature of R&D processes as well as the role of consumer acceptance of technology, and the cost of ignorance, and regret, if consumers are not fully informed on the technology used to generate the new food. We then apply the framework to a case of NPETs-based new apples using recently elicited WTP of French and US consumers. Our simulation results suggest that NPETs may be socially beneficial under full information, and when the probability of success under NPETs is significantly higher than under traditional hybridization. Otherwise, the innovation based on traditional hybridization is socially optimal. A probable collapse of conventional apples raises the social desirability of new apples generated by NPETs and traditional hybridization.