30,710 research outputs found
ARE THE DYNAMICS OF KNOWLEDGE-BASED INDUSTRIES ANY DIFFERENT?
The concept of «knowledge-based industries» (KBIs) has been widely used both in the academy and in policy-making over the last decade, due to the increasing role those industries play – both in terms of value added and employment – in contemporary, advanced economies. In this paper we discuss the extent to which KBIs differ from other industries in what concerns some of the stylised facts and regularities of industry dynamics usually found in the literature. In particular, we analyse the patterns and the determinants of firm entry and post-entry performance (measured in terms of survival of new firms), comparing KBIs groups with the remaining industries, using data for the Portuguese economy in the second half of the 1990s. We find that KBIs and the firms within them show some signs of distinctiveness in their dynamics as compared to the general case. In particular, on average, KBIs firms have higher survival chances, and entry within the KBIs groups is less responsive to incentives.knowledge-based industries; market entry; firm survival
BigO: A public health decision support system for measuring obesogenic behaviors of children in relation to their local environment
Obesity is a complex disease and its prevalence depends on multiple factors
related to the local socioeconomic, cultural and urban context of individuals.
Many obesity prevention strategies and policies, however, are horizontal
measures that do not depend on context-specific evidence. In this paper we
present an overview of BigO (http://bigoprogram.eu), a system designed to
collect objective behavioral data from children and adolescent populations as
well as their environment in order to support public health authorities in
formulating effective, context-specific policies and interventions addressing
childhood obesity. We present an overview of the data acquisition, indicator
extraction, data exploration and analysis components of the BigO system, as
well as an account of its preliminary pilot application in 33 schools and 2
clinics in four European countries, involving over 4,200 participants.Comment: Accepted version to be published in 2020, 42nd Annual International
Conference of the IEEE Engineering in Medicine and Biology Society (EMBC),
Montreal, Canad
The Exploitation of Web Navigation Data: Ethical Issues and Alternative Scenarios
Nowadays, the users' browsing activity on the Internet is not completely
private due to many entities that collect and use such data, either for
legitimate or illegal goals. The implications are serious, from a person who
exposes unconsciously his private information to an unknown third party entity,
to a company that is unable to control its information to the outside world. As
a result, users have lost control over their private data in the Internet. In
this paper, we present the entities involved in users' data collection and
usage. Then, we highlight what are the ethical issues that arise for users,
companies, scientists and governments. Finally, we present some alternative
scenarios and suggestions for the entities to address such ethical issues.Comment: 11 pages, 1 figur
Breaking the habit: measuring and predicting departures from routine in individual human mobility
Researchers studying daily life mobility patterns have recently shown that humans are typically highly predictable in their movements. However, no existing work has examined the boundaries of this predictability, where human behaviour transitions temporarily from routine patterns to highly unpredictable states. To address this shortcoming, we tackle two interrelated challenges. First, we develop a novel information-theoretic metric, called instantaneous entropy, to analyse an individual’s mobility patterns and identify temporary departures from routine. Second, to predict such departures in the future, we propose the first Bayesian framework that explicitly models breaks from routine, showing that it outperforms current state-of-the-art predictor
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