Search results for "modit"
showing 10 items of 72 documents
Journalistic Passion as Commodity: A Managerial Perspective
2021
This article focuses on the role of passion in news journalism from a managerial perspective. The analysis is based on a data set of 40,621 web-based job advertisements obtained from Journalismjobs.com, from the year 2002 to 2017. The quantitative analysis shows that passion has been on the rise as only 4% of the job advertisements in 2002 asked for “passionate” journalists, increasing to almost 16% in 2013. The authors also performed a qualitative analysis of job advertisements mentioning the word “passion” for the periods 2002–2003 and 2017. These advertisements express a shift from a normative role of journalists to journalism as an activity: when mentioned …
Il fenomeno della commoditization nel mercato delle conserve ittiche a base di tonno
2017
Nel complesso scenario competitivo dell’odierno mercato globalizzato nasce la minaccia della commoditization: un processo in cui un prodotto (o un servizio) perde la differenziazione significativa rispetto ai concorrenti. Il prezzo risulta così l’unico parametro di scelta per il consumatore e il prodotto si trasforma in una commodity, diviene cioè “banale”. In una prospettiva empirica, si vuole qui studiare la commoditization nell’industria ittico conserviera del tonno descrivendone le dinamiche e le caratteristiche strutturali che presentano chiari segnali della “banalizzazione”. In particolare, attraverso lo strumento della mappa prezzo-benefici saranno indagati il maturo mercato del tonn…
Does complexity explain the structure of trade?
2013
This paper analyzes whether complexity, measured by the number of skilled tasks that are performed in production, explains countries commodity trade structure. We modify the Romalis ( ) model to incorporate advantage differences in complexity across commodities together with differences in the number of mistakes made by workers in the production process in developed and developing countries as a source of comparative advantage. Our model predicts that the share of developed countries in world trade increases with products complexity. Empirical tests confirm this prediction. Moreover, we find that complexity complements the explanation provided by skillintensity on countries commodity trade …
Prices and Pareto optima
2006
We provide necessary conditions for Pareto optimum in economies where tastes or technologies may be nonconvex, nonsmooth, and affected by externalities. Firms can pursue own objectives, much like the consumers. Infinite-dimensional commodity spaces are accommodated. Public goods and material balances are accounted for as special instances of linear restrictions.
Exploring the Hedging Effectiveness of European Wheat Futures Markets during the 2007-2012 Period
2014
Abstract The hypothesis that speculative behaviour was the cause of the instability of commodity prices has brought renewed interest in futures markets. In this paper, the hedging effectiveness of European and US wheat futures markets were studied to test whether they were affected by the price instability observed after 2007. Indirectly, this could also be thought as a test of whether the increasing presence of speculators in futures markets have made them divorced from physical markets. A multivariate GARCH model was applied to compute optimal hedging ratios. No important evidence was found of a change in the hedging effectiveness after 2007.
How do normalization schemes affect net spillovers? A replication of the Diebold and Yilmaz (2012) study
2019
Abstract This paper replicates the Diebold and Yilmaz (2012) study on the connectedness of the commodity market and three other financial markets: the stock market, the bond market, and the FX market, based on the Generalized Forecast Error Variance Decomposition, GEFVD. We show that the net spillover indices (of directional connectedness), used to assess the net contribution of one market to overall risk in the system, are sensitive to the normalization scheme applied to the GEFVD. We show that, considering data generating processes characterized by different degrees of persistence and covariance, a scalar-based normalization of the Generalized Forecast Error Variance Decomposition is pref…
Cooperativismo e Turismo: a pobreza como eixo discursivo da agenda neoliberal
2020
A teoria do desenvolvimento sem dúvida abriu uma brecha entre os intelectuais, o que se baseia em seus efeitos. Parte da biblioteca ou literatura especializada chama atenção para a dependência de estados pobres em relação às agências internacionais de financiamento tais como o FMI ou o Banco Mundial, enquanto outros destacam os benefícios de desenvolvimento que, associado ao turismo, tirou certas economias emergentes da estagnação econômica. Este artigo explora teoricamente parte das limitações e vantagens da teoria do desenvolvimento aplicada ao turismo e a hospitalidade; e o faz através d…
Privacy Preserving Client/Vertical-Servers Classification
2019
We present a novel client/vertical-servers architecture for hybrid multi-party classification problem. The model consists of clients whose attributes are distributed on multiple servers and remain secret during training and testing. Our solution builds privacy-preserving random forests and completes them with a special private set intersection protocol that provides a central commodity server with anonymous conditional statistics. Subsequently, the private set intersection protocol can be used to privately classify the queries of new clients using the commodity server’s statistics. The proviso is that the commodity server must not collude with other parties. In cases where this restriction …
Dependence between renewable energy related critical metal futures and producer equity markets across varying market conditions
2022
We study the dependence of renewable energy production-related critical metal futures and producer equity returns, compared to the non-renewable energy (oil and natural gas) and some other globally relevant commodity markets. We find different asymmetric and symmetric dependencies in these commodity markets. The dependence is asymmetric in the most important critical metal markets, i.e., of silver, copper, and platinum. Still, surprisingly, for example, in the oil market, the relationship is symmetric, and no relationship is found in the natural gas market. Furthermore, the oil and agricultural markets have homogenous dependence structures in most market conditions, so the information trans…
Online Black-Markets: An Investigation of a Digital Infrastructure in the Dark
2021
AbstractThis paper investigates the functioning of Online Black-Markets (OBMs), i.e. a digital infrastructure operating in the Dark Net that enables the exchange of illegal goods such as drugs, weapons and fake digital identities. OBMs exist notwithstanding adverse conditions such as police interventions, scams and market breakdowns. Relying on a longitudinal case study, we focus on the dynamics of interactions among actors and marketplace technologies and we identify three mechanisms explaining OBMs operations. In particular, we show that OBMs infrastructure is the result of commoditization, platformization and resilience processes. Our contribution relies on the identification of communit…