Université de Fribourg

The signed distance measure in fuzzy statistical analysis : Some theoretical, empirical and programming advances

Berkachy, Rédina ; Donzé, Laurent (Dir.)

Thèse de doctorat : Université de Fribourg, 2020.

This thesis intends to present some advances in fuzzy statistical analyses. A particular distance between fuzzy numbers called the signed distance, seems to be appealing because of its directional property. It has the ability of describing the direction of travel between two fuzzy numbers. In addition, it has been often used as a fuzzy ranking tool or a defuzzification operator. Despite the...

Université de Fribourg

The effect of firms reporting to the Carbon disclosure project on their CO2 emissions. : An empirical study based on the synthetic control approach

Wyncoll, Adéla ; Donzé, Laurent (Dir.)

Thèse de doctorat : Université de Fribourg, 2017.

Whoever is not “green” is not “in”. That’s the latest trend of the market. This environmental movement pushes the companies to review their policies and assure a sustainable development by reducing their Carbon Dioxide (CO2) emissions and use of natural resources or in general show an eco-friendly behaviour. The objective of our work is to assess the pertinence of green policy...

Université de Fribourg

Four essays on statistical problems of hedonic methods : an application to single-family houses

Schöni, Olivier ; Donzé, Laurent (Dir.)

Thèse de doctorat : Université de Fribourg, 2013.

Over the last ten years, the hedonic approach has been acknowledged as the most appropriate method for addressing the valuation of goods that have a non-constant quality. This thesis is structured in four independent papers that investigate statistical problems related to this approach. The aim is to improve actual knowledge in the hedonic field through an empirical or theoretical approach, and...