Collections Friburgo

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La collezione friburghese raggruppa diverse collezioni specifiche che sono descritte nelle singole sezioni, come per esempio i quotidiani friburghesi o le opere di consultazione friburghesi. Essa comprende anche la versione digitalizzata di documenti posseduti dalla BCU Friburgo che sono parte del patrimonio friburghese.

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Université de Fribourg

Bounds on direct and indirect effects under treatment/mediator endogeneity and outcome attrition

Huber, Martin ; Lafférs, Lukáš

(Working Papers SES ; 514)

Causal mediation analysis aims at disentangling a treatment effect into an indirect mechanism operating through an intermediate outcome or mediator, as well as the direct effect of the treatment on the outcome of interest. However, the evaluation of direct and indirect effects is frequently complicated by non-ignorable selection into the treatment and/or mediator, even after controlling for...

Université de Fribourg

Causal mediation analysis with double machine learning

Farbmacher, Helmut ; Huber, Martin ; Langen, Henrika ; Spindler, Martin

(Working Papers SES ; 515)

This paper combines causal mediation analysis with double machine learning to control for observed confounders in a data-driven way under a selection-on- observables assumption in a high-dimensional setting. We consider the average indirect effect of a binary treatment operating through an intermediate variable (or mediator) on the causal path between the treatment and the outcome, as well as...

Université de Fribourg

The causalweight package for causal inference in R

Bodory, Hugo ; Huber, Martin

(Working Papers SES ; 493)

We describe R package “causalweight” for causal inference based on inverse probability weighting (IPW). The “causalweight” package offers a range of semiparametric methods for treatment or impact evaluation and mediation analysis, which incorporates intermediate outcomes for investigating causal mechanisms. Depending on the method, identification relies on selection on observables ...

Université de Fribourg

A cautionary tale about control variables in IV estimation

Deuchert, Eva ; Huber, Martin

(Working Papers SES ; 453)

Many instrumental variable (IV) regressions include control variables to justify (conditional) independence of the instrument and the potential outcomes. The plausibility of conditional IV independence crucially depends on the timing when the control variables are determined. This paper systemically works through different IV models and discusses the (conditions for the) satisfaction of...

Université de Fribourg

The challenge of dual career expatriate management in a specific host national environment: An exploratory study of expatriate and spouse adjustment in Switzerland based MNCs

Ravasi, Claudio ; Salamin, Xavier ; Davoine, Eric

(Working Papers SES ; 447)

The number of expatriates from global firms has been continuously increasing over the past decades as multinational companies still view expatriation as an important tool for sharing and transferring knowledge, controlling subsidiaries and developing workforce competencies. Expatriate management is still a costly and complex task for multinational companies. Adjustment, which has been defined as...

Université de Fribourg

Chancen kultureller Diversifizierung für Verbände

Gmür, Markus

In: Verbands-Management, 2013, vol. 39, no. 3, p. 17-25

Vereine, Verbände und Hilfswerke beklagen ein abnehmendes Interesse an ehrenamtlichem Engagement und aktiver Mitgliedschaft. Als Ursache dafür werden häufig veränderte Werthaltungen als Folge einer umfassenden Individualisierung in der heutigen Gesellschaft genannt. In diesem Beitrag wird hingegen am Beispiel der Schweiz die These vertreten, dass die meisten Verbände der zunehmenden ...

Université de Fribourg

Chasing dividends during the COVID-19 pandemic

Eugster, Nicolas ; Ducret, Romain ; Isakov, Dušan ; Weisskopf, Jean-Philippe

(Working Papers SES ; 520)

This paper investigates the impact of the COVID-19 pandemic on the trading behavior of investors around ex-dividend dates in Europe. The sudden decrease in the number of companies paying dividends reduced the opportunities to capture dividends. The firms that have maintained dividend payments during the pandemic thus attracted more interest than before. This led to a doubling in the magnitude...

Université de Fribourg

COG-FPOM: adapted fuzzy pay-off method for real options valuation : application in the abandonment decision of petroleum producing fields

Borges, R.E.P. ; Meier, Andreas

(Internal working papers DIUF ; 17-01)

This paper presents the COG-FPOM, a model based on the Fuzzy Pay-Off Method (FPOM). The FPOM is a scenario-based real option valuation method that uses fuzzy numbers as possibility distributions. The paper shows an unexpected result generated by the original FPOM, in which the real option would have a negative value. It further analyses its reasons and suggests a way to overcome it, by using the...