1,721,243 research outputs found
Price-Induced Technical Progress in Italian Agriculture
No full textIn this paper we aim at investigating the price-induced innovation hypothesis in Italian agriculture. We generalize the framework of analysis proposed by Peeters and Surry (2000). This generalization includes a short-run specification of the dual technology as well as a quadratic spline in a time variable. We argue that the temporary equilibrium setting gives a more realistic representation of how relative prices may steer innovation and variable input bias over time. The quadratic function has desirable properties with respect to the splined variable, i.e., a more flexible treatment of exogenous technical change. Results provide evidence in favour of the price-induced innovation in Italian agriculture from 1951 to 1991.Progrès technique induit par les prix dans l'agriculture italienne.
Ce travail vise à étudier l'hypothèse de l'innovation induite par les prix dans l'agriculture italienne en généralisant le cadre d'analyse proposé par Peeters et Surry (2000). Cette généralisation comprend une spécification à court terme de la technologie ainsi qu'une spline quadratique dans la dimension temporelle. Nous montrons que le modèle avec équilibre temporaire donne une représentation plus réaliste sur la manière dont les prix relatifs induisent l'innovation et les biais sur les inputs variables dans le temps. La fonction quadratique a des propriétés désirables concernant la variable temporelle, c'est-à-dire un traitement plus flexible du changement technologique exogène. Les résultats suggèrent l'existence d'une innovation induite par les prix dans l'agriculture italienne entre 1951 et 1991.Esposti Roberto, Pierani Pierpaolo. Price-induced technical progress in Italian agriculture.. In: Revue d’études en Agriculture et Environnement, N°89, 2008-4. pp. 5-28
Dating common commodity price and inflation shocks with alternative approaches
Full text linkThis paper investigates the occurrence of common price shocks (co-exceedance) across different commodities. IMF monthly price series of 11 commodities are considered over the 1980-2021 period. The analysis considers two alternative stochastic processes. The first looks for common volatility clusters using individual GARCH models to detect whether and when respective clusters overlap. Through an appropriate battery of tests, the second alternative looks for a common Bubble Generating Process (BGP) by searching for individual explosive roots and then dating them to identify the possible overlaps and first movers. Evidence emerging about these shock generating processes is linked to the analogous behaviour of the US Consumer Price Index (CPI) to assess to what extent inflation shocks can be associated to the observed commodity price spikes. Results show that the detection of temporary bubbles and volatility clusters only partially agrees on the episodes of exuberance, on the first-moving commodities and on the involvement of the CPI. This provides helpful suggestions on the development of a real-time surveillance tool supporting policy intervention in periods of commodity price turbulenc
The empirics of decoupling: Alternative estimation approaches of the farm-level production response
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Non-monetary motivations of the EU agri-environmental policy adoption. A causal forest approach
Full text linkThis paper investigates the non-monetary motivations of farmers' adoption of agri-environmental policies. Unlike the monetary (income) motivations, non-monetary drivers can not be directly observed but can be identified from observational data within appropriate quasi-experimental designs. A theoretical justification of farmers' choices is first formulated and a consequent natural experiment setting is derived. The latter admits heterogeneous, i.e. Individual, Treatment Effects (ITE) that, in turn, can be interpreted in terms of more targeted and tailored policy expenditure. A Causal Forest (CF) approach is adopted to estimate these ITEs for both the treated and not treated units. The approach is applied to two balanced panel samples of Italian Farm Accountancy Data Network (FADN) farms observed over the 2008-2018 period and concerns agri-environmental policies delivered through the Common Agricultural Policy (CAP). Results show how heterogeneous the farmers' response and the associated non-monetary motivations can be, thus indicating room for a more efficient policy design
Recensione di “La riforma delle politiche agricole dell’UE ed il negoziato WTO. Il contributo di alcune ricerche quantitative alla valutazione dei loro effetti sull’agricoltura italiana”, Giovanni Anania (a cura di)
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Agricoltura e sviluppo economico. Alcune considerazioni a margine del World Development Report 2008
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