Search results for "Choice"

Chemosensory cues allow male Tenebrio molitor beetles to assess the reproductive status of potential mates

2004

Males of many insect species, including beetles, choose their mates according to their reproductive status. However, the ways in which male beetles evaluate female reproductive status have received little attention. We tested the existence of male mate choice in the mealworm beetle, Tenebrio molitor, by observing mating and courtship behaviour of males given simultaneous access to pairs of females differing in their reproductive status: (1) mature versus immature; (2) virgin versus previously mated; (3) familiar (mated with the experimental male) versus unfamiliar (mated with a different male). Males courted and mated preferentially with mature and virgin females. To determine whether chemi…

Mood Management Theory

2016

SECONDARY SCHOOL AND UNIVERSITY STUDENTS’ INTEREST IN SCIENCE SUBJECTS IN CONNECTION TO THE CHOICE OF PROFESSION

2019

One of the most important factors influencing the welfare of the society is the development of science and technology, which in turn depends on scientists and students' science literacy. The aim of the study was to investigate the interest of high school and university students in science subjects, their views on factors that raise interest in subjects and play a determining role in the choice of profession. The questionnaire of Riga secondary school and university students about their interest in science subjects in connection to the choice of their profession was carried out.  The results of the survey showed that the majority of university students are interested, or they have moderate i…

Gentrifizierung in periurbanen Räumen Frankreichs: Am Beispiel des Umlandes von Nancy

2019

International audience; Gentrifizierungsprozesse in periurbanen Räumen Frankreichs fanden in der Forschung bisher kaum Beachtung; sie wurden als naheliegende Prozesse in Kernstädten verstanden und untersucht. Zudem wurde eher die Krise der Vorstädte, der banlieues beachtet, womit Stigmatisierung und Ausgrenzung analyseleitend wurden. Im vorliegenden Beitrag wird nun hingegen am Beispiel des Umlandes der Metropole Nancy (Region Grand Est) Gentrifizierung als Entwicklung herausgestellt, die sich ebenfalls als konstitutiv für periurbane Räume und damit kleinere Umlandgemeinden von Städten bzw. insbesondere Metropolen andeutet. Vor dem Hintergrund einer Beleuchtung bisheriger Forschungszugänge …

Choosing among alternative technological strategies: an empirical analysis of formal sources of innovation

2003

Abstract This work aims to offer a detailed conceptual and empirical analysis of the inter-firm differences in deciding the composition of their technological efforts. Using data for Spanish firms in the period 1990–1996, the study begins with the standard analysis of the determinants of innovative investment, then moves on to the less analysed question of the determinants of the generate versus import alternative and ends with a novel analysis of the characteristics which lead firms to organise research internally as compared to the possibility of contracting R&D services externally. In contrast to standard practice, the econometric approach takes into account the existence of non-linearit…

Interactive vs. non-interactive knowledge production by faculty members

2008

16 pages, 4 tables

THE ROLE OF SUNK COSTS IN THE DECISION TO INVEST IN R&D

2009

We present a dynamic empirical model of a firm's R&D decisions that is consistent with the existence of sunk R&D costs, taking into account that these costs may differ between small and large firms, and among different technological regimes. We estimate a multivariate dynamic discrete choice model using firm-level data of Spanish manufacturing for 1990–2000. Conditional on firm heterogeneity and serially correlated unobservable factors, we find that R&D history matters. This true state dependence allows inferring the existence of sunk R&D costs associated with performing R&D. Sunk R&D costs are found to be higher for large, high-tech firms.

The optimal degree of commitment in a negotiation with a deadline

2004

This note explores the consequences of a player's freedom of choice over his degree of commitment for the bargaining outcome. In particular, we modify the nonstationary structure of Fershtman and Seidmann (1993)'s bargaining by allowing one player to possess imperfect commitments where the degree of commitment is chosen prior to the negotiation stage. We show that a player optimally chooses an intermediate degree of irrevocability provided the costs of increasing the degree of commitment are small enough. In this case, not only an immediate agreement is reached but also the commitment is effective.

Evaluating the missing links in the relationship between executives' compensation and firm performance

2014

The research on the relationship between executive compensation and firm performance is extensive but has produced inconsistent results and, typically, weak explanatory power. One cause of these results is use of an incomplete theoretical framework that ignores some variables that are related to these two concepts. We explore the missing links between them. The paper contributes to scholarly and practical understanding of this important issue in the literature by extending and combining agency theory, upper echelons theory, and motivation theory perspectives. The paper develops a model that describes and explains the interactive relationship between executive managerial ability, executive c…

Libere di scegliere? L'aborto delle donne migranti in Italia tra politiche migratorie, sfruttamento lavorativo e casi estremi di abusi e violenze

2014

The essay take into account the increase in the number of abortion among migrant women in Italy in the wider context of the living conditions of these women which are often subjected to a multiple discrimination related to gender, migrant status, and kind of job. The feminization of migrations towards Italy is put in connection with the feminization of the labour market and with the arrival of specific nationalities of migrants. After having compared the data related to the abortion with respect to Italian and migrant women, this contribution enter into the details of the socio-economic characteristics of these second ones’ life, by analyzing the bond existing with the recourse to abortion.…