Search results for "Mathematica"

Hyperbolic discount curves: a reply to Ainslie

2013

Published version of an article in the journal: Theory and Decision. Also available from the publisher at: http://dx.doi.org/10.1007/s11238-013-9361-8 Ainslie (Theory and Decision, 73, 3-34, 2012) challenges our interpretation of the properties of hyperbolic discount curves in an iterated prisoners' dilemma (IPD) model. In this reply, we discuss the emergence of hyperbolic discount functions in the behavioral economics literature and evaluate their properties. Furthermore, we present a summarized version of our IPD model and evaluate Ainslie's points of contention.

On a stochastic disease model with vaccination

2006

We propose a stochastic disease model where vaccination is included and such that the immunity isn’t permanent. The existence, uniqueness and positivity of the solution and the stability of disease free equilibrium is studied. The numerical simulation is done.

Nonstandard Uniserial Modules Over Valuation Domains

1987

Knowledge management in franchising : a research agenda

2019

PurposeThis paper aims to offer a comprehensive systematic review of knowledge management (KM) in franchising literature over the past 29 years.Design/methodology/approachBy means of bibliometric citation analysis, ISI Web of Science (WoS) database is used to analyze articles from 1990-2018. A total of 169 articles by 369 authors across 40 countries published in 113 journals from 200 institutions were clustered and examined through HistCites and VOSviewer.FindingsThe exploration of KM in franchising is associated with 3 factors: governance structure; performance outcome; and franchise network growth. The findings also reveal that KM in franchising is still an emerging discipline encompassin…

Dynamic business modeling for sustainability: Exploring a system dynamics perspective to develop sustainable business models

2019

In the last decade, business models for sustainability have gained increasing attraction by corporate sustainability scholars with international conferences and scientific journals encouraging the development of the debate on their design, use and innovation processes. Capitalizing on the basic principles, requirements, and methodological limitations found in the literature on sustainability‐oriented business model design, this paper aims to conceptualize a dynamic business modeling for sustainability approach, which combines an adapted sustainable business model canvas and system dynamics modeling. To this end, the paper also illustrates the key operating principles of the proposed approac…

An Empirical Research on the Impacts of organisational decisions’ locus, tasks structure rules, knowledge, and IT function’s value on ERP system succ…

2014

This research examined the impacts of organisational decisions’ locus, tasks structure, rules and procedures, organisational actors’ information technology (IT) skills/knowledge and IT department’s or function’s value perceptions on enterprise resource planning (ERP) system success. While such antecedent factors matter in the discourse, research on their impacts on ERP success is rare. To increase understanding in the area, we proposed a research model and developed pertinent hypotheses that included the above-mentioned factors. Using a cross-sectional field survey, we collected data from 165 firms in three European countries. Data analysis was performed using the partial least squares (PLS…

Innovation and Entrepreneurial Ecosystems: Structure, Boundaries, and Dynamics

2019

Recognizing the broader dimensions of entrepreneurial and innovation activities, holistic and inclusive networked approaches pave the way to co-creation activities that are essential for achieving sustainability in food systems. Recent studies have started to deepen what are the critical enablers for creating thriving entrepreneurial and innovation ecosystems. Networks that include firms, institutions, and several other relevant stakeholders in knowledge spillovers enable to produce more social and economic value through co-creation processes. However, due to the unique complexity within ecosystems, there is no standardized framework or strategy to develop entrepreneurial or innovation ecos…

Lead Poisoning in France around 1840: Managing Proofs and Uncertainties in Laboratories, Courtrooms, and Workplaces.

2021

This article reviews one of the most famous cases of lead poisoning in France, the Ponchon affair, which occurred in 1843 during a crucial period for French toxicology. The trial attracted public attention and inflamed controversy among medical and legal experts. The debate involved toxicological methods and their reliability, and gave rise to more general questions about the value of expert evidence, the way it was presented in court, and its relationship to other forms of legal evidence. I begin with a general overview of lead poisoning and toxicological research on lead compounds around 1840. I then discuss different toxicological proofs employed for detecting or preventing lead poisonin…

Piero Sraffa's lectures on the advanced theory of value 1928–31 and the rediscovery of the classical approach

2005

Abstract Sraffa's Lectures on the Advanced Theory of Value 1928–1931 and his two preparatory Notes of summer and November 1927 provide a wealth of material, up to now unpublished, for a reconstruction of the early stage of his inquiry into the cognate fields of pure economic theory and its history. The three manuscripts show that in the late 1920s Sraffa rejected the Marshallian constant-cost interpretation of classical economics, an interpretation to which he had adhered in his 1925 and 1926 papers. Moreover, in the Lectures, Sraffa presents for the first time his own interpretation of classical economics based on the concepts of surplus, physical real costs and asymmetric treatment of dis…

Method and analysis in Piero Sraffa's 1925 critique of Marshallian economics

2000

This paper provides an analysis of the logical structure and analytical content of Piero Sraffa's 1925 Italian paper, ‘Sulle relazioni fra costo e quantita prodotta’. It shows that Sraffa's criticism of the supply side of Marshall's theory of value in a competitive partial equilibrium model involves analytical and methodological issues. Endorsing an agressive methodology Sraffa logically reconstructs Marshall's model on variable returns to determine its empirical domain. He demonstrates that the latter encompasses only the empirically irrelevant cases of specific factor industries and specific external economies industries and that it cannot be generalized to non-specific factor industries …