1,720,987 research outputs found
La mossa del cavallo. Simon tra economia comportamentale ed economia cognitiva
No full textQuesto articolo presenta le caratteristiche principali del pensiero di Simon in un quadro storico, confrontandoli con i temi di economia comportamentale e sperimentale al fine di individuarne le aree di influenza reciproca. L'impatto diretto di Simon sullo sviluppo dell'economia sperimentale, o più in generale dell'economia comportamentale contemporanea, sembra essere piuttosto limitato. Simon è relativamente poco citato e ancor meno conosciuto e applicato dagli economisti comportamentali, che tendono ad essere ancora vicino all'approccio neoclassico, per criticarlo o cercare di preservare il suo carattere «scientifico». In effetti, l'espressione «razionalità limitata» è più spesso collegata al lavoro di Kahneman rispetto a quello di Simon, e solo pochi studiosi - in generale coloro che utilizzano il termine "economia cognitiva" - hanno cercato un collegamento diretto con Simon. Tuttavia, lo sviluppo dell'economia comportamentale sta aprendo nuove aree di ricerca, alcune delle quali sono piuttosto eterodosse, lontane dal mainstream principale e per le quali le intuizioni di Simon mostrano ancora tutta la propria validità
Being in the right place: A natural field experiment on the causes of position effects in individual choice
No full textThis paper aims to better understand why individuals tend to select items at the top of lists. Within a natural field experiment, we randomize the order in which new economics research papers are presented in email alerts and measure the subsequent download activity. Our novel disaggregate data allows us to evidence i) how position effects vary across users, ii) the order in which users select their items, and iii) how position effects are related to users’ selection orders. Overall, the findings are most consistent with an explanation of choice fatigue where users consider the listed items in a downwards-then-upwards order
Color and abundance: Influencing children's food choices
No full textPackaging color and product availability are factors influencing consumer preferences. However, their impact on children's choices is scarce. The current research examines whether the size of the set of items and the packaging color might shape children's choices. In three experiments (N = 887), we investigated the effect of these two variables on children's choices of food items in a laboratory setting. The results showed that food items provided in larger piles of identical products were preferred to those provided in smaller piles of identical products, even though children could only choose one item to take away, showing evidence of an "abundance bias". In addition, food products packaged in red were preferred to those packaged in green. A moderation effect was also observed whereby children preferred red-packaged items more when offered within a larger group of identical items (abundance) and less when offered within a smaller group of identical items. The findings provide insight into the psychology of color and abundance as choice attractors in children's consumer preferences for food products
Few-GHz repetition rate frequency combs in IIIV/SiN external cavity lasers
No full textWe study the dynamics of hybrid integrated lasers with dispersive effective reflectivity implemented through coupled microrings in a SiN platform. We investigate the self-generation of optical frequency combs and characterize them in terms of bandwidth, spectral line separation, phase and amplitude noise
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Framing Effects in Intertemporal Choice: A Nudge Experiment
Full text linkThis paper experimentally investigates the framing effects of intertemporal choice using two different elicitation modes, termed classical and penal. In the classical mode, participants are given the choice between receiving a certain amount of money, smaller and sooner, today and a higher amount, larger and later, delayed (e.g., “€55 today vs. €75 in 61 days”). This is referred to as the standard mode. In the penalty mode, the participant must give up an explicit amount of money in order to choose the smaller and sooner option (e.g., “€75 in 61 days vs. €55 today with a penalty of €20”). This is the explicit mode. We find that estimates of individual discount rates are lower in the explicit mode than in the standard mode. This result suggests that even very simple information about the amount of money one must surrender for choosing the earlier option increases delayed consumption. The finding has relevant implications for self-control and long-term planning in intertemporal choice
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
