Publications associées à Social Entrepreneurship : Societal Wealth Creation Under Conditions of Near-Knightian Uncertainty

Beyond scientific excellence: International mobility and the entrepreneurial activities of academic scientists

Valentina Tartari, Wolf-Hendrik Peter Uhlbach

As the international mobility of academic scientists is ever increasing, its effects on outcomes beyond research productivity deserve more attention. In this paper, we therefore investigate to what extent academics with different international mobility exp ...

ELSEVIER2022

Scale effects on efficiency and profitability in the Swiss banking sector

Andreas Fuster

This paper analyzes efficiency and profitability in the Swiss banking sector over the period 1997–2019. We find strong evidence for scale economies: for most banks in the sample, efficiency and profitability increase with bank size. Using an instrumental v ...

2022

Efficiency Optimisation of Slotless Magnetic Bearing Machines

Yves Perriard, Leopoldo Rossini, Guzmán Borque Gallego, Douglas Martins Araujo

Efficiency is one of the key performance indexes in the design of electric motors. When considering fully active magnetic bearing machines, this aspect gain further relevance due to the necessity of actively controlling all the remaining degrees of freedom ...

2021

Informational frictions in financial markets

Erik Hapnes

This thesis consists of three chapters on informational frictions in financial markets. The chapters analyze problems related to markets' ability to guide real investment, and what drives liquidity. Both problems are important to ensure efficient resource ...

EPFL2021

Numerical investigation on the volute cutwater for pumps running in turbine mode

Elena Vagnoni, Alessandro Morabito

The hydropower sector has recently raised the interest in pump as turbine (PaT) that can be a valid trade-off between capital cost and performance in micro-scale installations. Nevertheless, the modest efficiency of PaTs often restricts their exploitation. ...

Pergamon-Elsevier Science Ltd2021

Creating New Ventures: A Review and Research Agenda

Marc Gruber

Creating new ventures is one of the most central topics to entrepreneurship and is a critical step from which many theories of management, organizational behavior, and strategic management build. Therefore, this review and proposed research agenda are rele ...

SAGE PUBLICATIONS INC2020

Entrepreneurship across Sociocultural Contexts: Empirical and Theoretical Perspectives

Shirah Eden Foy

Entrepreneurship is a highly contextualized process. Yet, the vast majority of entrepreneurship research has focused on Western contexts, yielding a skewed picture of global entrepreneurial behavior. Moreover, theories of mainstream psychology explaining t ...

EPFL2020

For Their Own Good and For the Good of Others: Identity Duality in New Venture Evaluation and Investor Decision-Making

Nettra Danette Pan

Organizing is a managerial process which demands a sense of purpose. When stories about "who we are" and "what we do" are salient and coherent (Voss, Cable & Voss, 2006), organizations can better plan, explain and justify collective action (Whetten & Macke ...

EPFL2018

Entrepreneurial Behavior: A Reconceptualization and Extension Based on Identity Theory

Marc Gruber

Research summaryEntrepreneurial behavior is core to our understanding of entrepreneurship. Yet, research progress is hindered because most studies adopt a traditional perspective of the construct that is embedded in economic rationality and focused on for- ...

Wiley2017

Coming Full Circle Why Social and Institutional Dimensions Matter for the Circular Economy

François Richard Vuille, Vincent Moreau

In light of the environmental consequences of linear production and consumption processes, the circular economy (CE) is gaining momentum as a concept and practice, promoting closed material cycles by focusing on multiple strategies from material recycling ...

Massachusetts Institute of Technology Press2017

Combining Structural and Timing Errors in Overclocked Inexact Speculative Adders

Christian Enz, Vincent Frédéric Camus, Xun Jiao, Mattia Cacciotti, Yu Jiang

Worst-case design is used in IoT devices and high performance data centers to ensure reliability, leading to a power efficiency loss. Recently, approximate computing has been proposed to trade off accuracy for efficiency. In this paper, we use Inexact Spec ...

Ieee2017

An Inexact Ultra-low Power Bio-signal Processing Architecture With Lightweight Error Recovery

David Atienza Alonso, Ruben Braojos Lopez, Soumya Subhra Basu, Giovanni Ansaloni, Loris Gérard Duch

The energy efficiency of digital architectures is tightly linked to the voltage level (Vdd) at which they operate. Aggressive voltage scaling is therefore mandatory when ultra-low power processing is required. Nonetheless, the lowest admissible Vdd is ofte ...

Assoc Computing Machinery2017

A mixed standard/custom design strategy to minimize cost and maximize efficiency for picohydro power potential harvesting

François Avellan, Cécile Münch-Alligné, Elena Vagnoni, Loïc Andolfatto

Harvesting the numerous small scale hydroelectric potential is a way to increase the sustainable hydraulic energy production in developed countries. The condition to meet economical profitability with pico power stations - below 25 kW - is to minimize the ...

2015

Efficiency of a highway use reservation system for morning commute

Wei Liu

This paper examines the design and efficiency of a highway use reservation system where commuters need reservations to access a highway facility at specific times. We show that, by accommodating reservation requests to the level that the highway capacity a ...

Pergamon-Elsevier Science Ltd2015

Weight and Efficiency Optimized DC/DC Converter Based on Multiple Interleaved Channels

Alfred Rufer, Yannick Louvrier

Today, energy saving is one of the main objectives for engineers. In the case of mobile applications, energy can be saved by two different ways: decreasing the total masse of the system and increasing the efficiency of the overall system. This paper presen ...

2012

From Minds to Markets: How Human Capital Endowments Shape Market Opportunity Identification of Technology Start-Ups

Marc Gruber, James David Thompson

The resource-based view suggests that firms' heterogeneous resource endowments are important for explaining interfirm performance differences. To date, however, the literature provides little insight on the factors that shape the identification of markets ...

Sage Publications Inc2012

Snakes With an Ellipse-Reproducing Property

Philippe Thévenaz, Michaël Unser, Chandra Sekhar Seelamantula, Ricard Delgado Gonzalo

We present a new class of continuously defined parametric snakes using a special kind of exponential splines as basis functions. We have enforced our bases to have the shortest possible support subject to some design constraints to maximize efficiency. Whi ...

IEEE2012

Weight and Efficiency Optimized DC/DC Converter based on Multiple Interleaved Channels

Alfred Rufer, Yannick Louvrier

Today, energy saving is one of the main objectives for engineers. In the case of mobile applications, energy can be saved by two different ways. First, decreasing the total masse of the system, and second, increasing the efficiency of the overall system. T ...

2011

Base case process development for energy efficiency improvement, application to a Kraft pulping mill. Part II: Benchmarking analysis

François Maréchal

A new procedure for benchmarking analysis has been developed to evaluate the energy efficiency of a chemical process. Benchmarking is performed to identify process inefficiencies before developing energy enhancement measures. The new procedure combines typ ...

2011

Étude et optimisation d'un convertisseur DC/DC à canaux multiples entrelacés

Yannick Louvrier

In a context in which economy and ecology follow historically opposed trajectories, renewable energies appear as an interesting compromise. However, the energy production from these emerging technologies is well below that of their ancestors, and their cos ...

EPFL2010