More than energy transformations: a historical transition from organic to industrialized farm systems in a Mediterranean village (Les Oluges,Catalonia, 1860–1959–1999)

The analysis of energy efficiency of agroecosystems from a sociometabolic perspective is a useful way to assess the sustainability of farm systems. In this paper we examine the transition of a Mediterranean agroecosystem from an organic farm system in the mid nineteenth century to an industrialized one at the end of the twentieth century by means of the technologies and ideology of the Green Revolution. Given that many of the world’s agricultural systems have experienced, or are currently experiencing this transformation, our results are relevant for building more sustainable agricultural systems in future. Our results highlight the relevance of livestock density, and the flows of biomass reused and unharvested biomass as key elements affecting the sustainability of the agroecosystem not only from a socioeconomic perspective, but also from an agroecological point of view. Additionally, from a biocultural perspective our investigation sustains the relevance of the study of traditional farm systems for the development of a sustainable agriculture.     

Revolution from below in Panguipulli: Agrarian reform and political conflict under the Popular Unity in Chile

This article examines the political conflict in rural society during the Popular Unity Government (1970–73) by focusing on the mobilization of forestry workers in Panguipulli, a district in southern Chile. Adopting land invasions as their main strategy in the struggle for land and power, Panguipulli workers experienced a radical politicization by aligning themselves with the Peasant Revolutionary Movement, the “peasant front” of the Revolutionary Left Movement. Because of its relation with this emerging “new left,” rural mobilization was a significant expression of the “revolution from below”, which challenged the Popular Unity's “Chilean road to socialism.” Moreover, because rural mobilization also took place in other areas throughout Chile where the Revolutionary Left Movement was influential, it gave rise to a grassroots project for radicalizing the government's agrarian reform. As a result, the rural “revolution from below” strongly influenced the content and trajectory of political conflict under the Popular Unity Government.     

The price stability oriented monetary policy of the ECB: an assessment

The definition of price stability adopted by the ECB has recently been criticized in the literature, particularly for being unable to fully anchor inflation expectations and creating a deflation risk. In the paper empirical evidence is provided against these claims. Despite the unfavourable macroeconomic conditions for the euro area since 2001, monetary policy management has lead to the setting of the policy rate at levels compatible with trend inflation (the long-run inflation forecast) in the range 1–3%, and therefore without affecting negatively the inflation outlook.     

The Covid-19 economic crisis: dangerously unique

Business Economics - The Covid-19 crisis is unique in several respects. This devastating recession does not have an economic origin, will dance largely to the tune of non-economic factors, and is...     

Effects of perceived retail crowding: a meta-analytic study

ABSTRACT

We performed a meta-analysis to understand the crowding construct in the retail context. The systematic review identified 535 studies, of which 69 were present in the analysis conducted, generating 504 quantitative relationships. Our meta-analysis indicated that the perception of crowding generates many negative feelings, a few positive feelings, minimal perceived value, low attractiveness of the environment and low short- and long-term consequent behaviours. At the methodological level, it was found that student samples and experiments tend to produce a stronger impact on the relationship between crowding and satisfaction. It was also found that the effect of crowding perception on customer satisfaction differed according to cultural influence. Finally, the results did not demonstrate an influence of the type of density (human vs spatial) on the relationship between retail crowding and satisfaction.     

Analyzing social media,analyzing the social? A methodological discussion about the demoscopic and predictive potential of social media

Quality & Quantity - The impact of computational technologies and the worldwide use of Internet entails a theoretical and methodological challenge for social scientists, considering the purpose...     

The effect of spatial variables on the economic and environmental performance of bioenergy production chains

The aim of this paper is to understand the impacts of spatial variables on the performance of bioenergy production chains (BPCs). Even though the strong debates continue on the use of first generation biomass for bioenergy production, many countries continue to utilize it as an alternative energy source. Several studies have been carried out on biomass transformation efficiency, on environmental impacts of using crop in biofuel production, and on its negative effects on increasing food prices. However, less attention has been paid to the role played by the spatial variables on the performance measures of BPCs.In this paper, we analyse how three spatial variables, i.e. cultivation area size, land dispersion, and accessibility to cultivation areas, can affect the performance of energy-balanced BPC, which produces its own electric and thermal energy demand. The chain is represented as a network of processes, where all inputs and outputs are geographically referred and analysed in a theoretical case example. We propose an enterprise input-output (EIO) model, which can be used as an accounting tool to compute the main materials and energy flows-related costs and as a planning tool to evaluate the chain performance in different scenarios. Finally, the proposed model is applied to an actual case study, to investigate the opportunity to establish a sunflower-based BPC in Apulia region (Italy) and to assess its performance.Results show that higher land dispersion degree and less area accessibility levels reduce the economic and environmental performance of the BPCs. The construction of the energy-balanced chain reduces the negative environmental impacts caused by fossil energy use in the processes of the BPC. Managerial implications can also be obtained from actual case study about the biodiesel plant location decisions.     

Lundberg parameters for non standard risk processes

We consider risk processes with delayed claims in a Markovian environment, and we study the asymptotic behaviour of finite and infinite horizon ruin probabilities under the small claim assumption. We also consider multivariate risk processes of the same kind, and we give upper and lower bounds for the Lundberg parameters of the corresponding total reserve. Our results have strong analogies with those one in the paper by Juri (Super modular order and Lundberg exponents, 2002).     

A cost-effectiveness modeling evaluation comparing a biosimilar follitropin alfa preparation with its reference product for live birth outcome in Germany,Italy and Spain

Abstract

Background/objective: Although biosimilar drugs may be cheaper to purchase than reference biological products, they may not be the most cost-effective treatment to achieve a desired outcome. The analysis reported here compared the overall costs to achieve live birth using the reference follitropin alfa (GONAL-f) or a biosimilar (Ovaleap) in Spain, Italy and Germany.

Methods: Patient and treatment data was obtained from published sources; assisted-reproductive technology, gonadotropin, follow-up and adverse-event-related costs were calculated from tariffs and reimbursement frameworks for each country. Incremental cost-effectiveness ratios (ICERs) were calculated from the difference in costs between reference and biosimilar in each country, divided by the difference in live-birth rates. Mean cost per live birth was calculated as total costs divided by the live-birth rate.

Results: The published live birth rates were 32.2% (reference) and 26.8% (biosimilar). Drug costs per patient were higher for the reference recombinant human follicle-stimulating hormone in all three countries, with larger cost differences in Germany (€157.38) and Italy (€141.50) than in Spain (€22.41). The ICER for the reference product compared with the biosimilar was €2917.47 in Germany, €415.43 in Spain and €2623.09 in Italy. However, the overall cost per live birth was higher for the biosimilar in all three countries (Germany €8135.04 vs. €9185.34; Italy €8545.22 vs. €9733.37; Spain €14,859.53 vs. €17,767.19). Uncertainty in efficacy, mean gonadotropin dose and costs did not have a strong effect on the ICERs.

Conclusions: When considering live birth outcomes, treatment with the reference follitropin alfa was more cost effective than treatment with the biosimilar follitropin alfa.