Search results for "SAC"

Organizational models in the Sicilian ornamental plant industry: An empirical analysis based on transaction cost theory

2015

The process of market globalization has led to a redefinition of business models in order to compete in domestic and international markets. In the current competitive scenario, the survival of companies is linked to their ability to reduce or contain the sum of both production and transaction costs. The aim of this paper is to identify the existence of similar organizational models of a sample of Sicilian firms active in the Ornamental Plants sector based on those transaction costs that they support in relation to the sales channel and the other human and firm characteristics. Using a clustering procedure, we identified four well-distinct organizational models whose formation is influenced …

Effective leadership in teams: a simple model

2013

This article explores the determinants of effective leadership in a team of production. We obtain that for leadership to be effective, the leader must be at least as productive as the follower. In the case of a charismatic leader, we obtain that efficiency can be restored with a homogeneous team.

¿SE PUEDE MEDIR LA NEGOCIACIÓN INFORMADA?: UNA REVISIÓN DE LA METODOLOGÍA BASADA EN LAS COVARIANZAS DE LAS SERIES DE PRECIOS

2009

RESUMENEl desarrollo en los modelos teóricos de microestructura ha motivado la aparición de un grupo de trabajos encaminado al estudio empírico de los costes de transacción y sus componentes dada la importancia que han tenido los mismos en el estudio del funcionamiento de los mercados y la comparación entre éstos así como sus numerosas aplicaciones en campos afines (finanzas corporativas, eficiencia de los mercados, etc.). Por otra parte, la contrastación empírica de los distintos modelos establecidos muestra resultados claramente dispares. Por ello, el objetivo de nuestro trabajo es analizar con detalle y en conjunto dichos modelos centrándonos en un grupo con características muy similares…

Explaining the process of change taking place in legal rules and social norms: The cases of institutional economics and new institutional economics

1995

This paper deals with the phenomenon of institutional change and has been conceived as an attempt to answer the following question: Can we retain theimage of institutional change contained in a theory when we replace a methodological foundation on which the theory was built by a different and alternative one? For an answer to be developed, special attention is paid to the contributions made by institutional economists (IE) and those made by transaction cost—new institutional economists (NIE). The question clearly shows that it is a paper on applied methodology rather than a survey on institutional change contributions. Because of that, its main purpose is not to increase our knowledge about…

The Trade Creation Effect of Immigrants: Evidence from the Remarkable Case of Spain

2010

There is abundant evidence that immigrant networks are associated with larger exports from the country where they settle to their countries of origin. The direction of causality of this association is less clearly established. Also, we do not know to what extent these increased exports are due to an increase in the number of exporting firms (i.e. the extensive margin of trade) or due to larger values exported by existing firm (i.e. the intensive margin). Using micro data on individual trade transactions from Spanish provinces between 1995 and 2008 and data on the stock of immigrants in those provinces by country of origin we can make progress on both fronts. The richness of our data allows …

Environmentally driven changes in Baltic salmon oxidative status during marine migration.

2020

The fitness and recruitment of fish stocks can be markedly affected by environmental disturbances including global warming, eutrophication and contamination. Understanding the effects of environmental stressors on salmon physiology during marine residence is of a global concern as marine survival has decreased. We present a unique combination of physiological responses - antioxidant defence and oxidative damage biomarkers, stable isotopes and contaminant exposure biomarkers - measured from adult Atlantic salmon (Salmo salar) collected at the Baltic Sea and studied in relation to environmental variables and fitness estimates. The results demonstrate that feeding populations of salmon display…

Non-Saccharomyces Yeasts nitrogen source preferences: Impact on sequential fermentation and wine volatile compounds profile

2017

International audience; Nitrogen sources in the must are important for yeast metabolism, growth, and performance, and wine volatile compounds profile. Yeast assimilable nitrogen (YAN) deficiencies in grape must are one of the main causes of stuck and sluggish fermentation. The nitrogen requirement of Saccharomyces cerevisiae metabolism has been described in detail. However, the YAN preferences of non-Saccharomyces yeasts remain unknown despite their increasingly widespread use in winemaking. Furthermore, the impact of nitrogen consumption by non-Saccharomyces yeasts on YAN availability, alcoholic performance and volatile compounds production by S. cerevisiae in sequential fermentation has b…

2020

There is an active debate regarding whether the ego depletion effect is real. A recent preregistered experiment with the Stroop task as the depleting task and the antisaccade task as the outcome task found a medium-level effect size. In the current research, we conducted a preregistered multilab replication of that experiment. Data from 12 labs across the globe ( N = 1,775) revealed a small and significant ego depletion effect, d = 0.10. After excluding participants who might have responded randomly during the outcome task, the effect size increased to d = 0.16. By adding an informative, unbiased data point to the literature, our findings contribute to clarifying the existence, size, and g…

Pašnodarbināto menedžments

2021

Esošie pētījumi par jauno paaudžu īpašo motivāciju nosacītas nodarbinātības apstākļos ir visai ierobežoti. Tāpēc ir vajadzīga turpmāka izpēte, lai izvērtētu iemeslus viņu gatavībai pievienoties pastāvīgai nodarbinātībai, kā arī īpašos instrumentus viņu motivēšanai. Esošā zinātniskā literatūra, statistiski un primāri dati tika apkopoti un analizēti, lai izpētītu specifiskus faktorus, kas varētu ietekmēt jauniešu motivāciju nosacītājos amatos. Tādējādi, jauniešu nodrošināšana ar pietiekamu atalgojuma līmeni ir izrādījusies visefektīvākais motivācijas instruments, ko uzņēmumi varētu izmantot jaunu nosacītu darbinieku motivēšanai.

Dynamic Preisach Hysteresis Model for Magnetostrictive Materials for Energy Application

2013

In this paper the magnetostrictive material considered is Terfenol-D. Its hysteresis is modeled by applying the DPM whose identification procedure is performed by using a neural network procedure previously publised [. The neural network used is a multiplayer perceptron trained with the Levenberg-Marquadt training algorithm. This allows to obtain the Preisach distribution function, without any special conditioning of the measured data, owing to the filtering capabilities of the neural network interpolators. The model is able to reconstruct both the magnetization relation and the Field-strain relation. The model is validated through comparison and prediction of data collected from a typical …