David Maradan

• PhD
• Lecturer at Haute école de gestion de Genève | ecosys SA | Fribourg University | Swiss Distance University

The COVID-19 pandemic had unprecedented consequences on businesses and, in particular, small and medium enterprises (SMEs). The aim of this paper is to empirically study the impact of the COVID-19 sanitary crisis on Swiss SMEs two years after the onset of the pandemic. Using a sample of 149 SMEs operating in the French-speaking region of Switzerlan...

Economic theory assumes that willingness to pay (WTP) increases with the quantity of the consumed good. This implies that there should be a scope effect in contingent valuation studies. However, in previous issues of Ecological Economics, several authors criticized the contingent valuation (CV) method for the absence of such effect or its inadequac...

This paper analyzes the demand for recreation in Swiss forests using the individual travel cost method. We apply a two-steps approach, i.e., a hurdle zero-truncated negative binomial model, that allows accounting for a large number of non-visitors caused by the off-site phone survey and over-dispersion. Given the national scale of the survey, we gr...

The objective of the assessment of UNEP-UNDP is to determine to what extent the Rubaya green village demonstration project has been successful in raising the well-being of the beneficiaries while, at the same time, ensuring the sustainable use of natural resources and social cohesion. To answer the previous question, a cost-benefit and replication...

Les auteurs mènent une évaluation contingente sur un échantillon représentatif de la population pour estimer la disponibilité à payer (DAP) pour un programme de création de nouvelles réserves forestières en Suisse. Le scénario prévoit des restrictions d’accès aux zones forestières en question, raison pour laquelle l’analyse porte essentiellement su...

Les auteurs mènent une évaluation contingente sur un échantillon représentatif de la population pour estimer la disponibilité à payer (DAP) pour un programme de création de nouvelles réserves forestières en Suisse. Le scénario prévoit des restrictions d’accès aux zones forestières en question, raison pour laquelle l’analyse porte essentiellement su...

Background: The 2009 A/H1N1 influenza pandemic generated additional data and triggered new studies that opened debate over the optimal strategy for handling a pandemic. The lessons-learned documents from the World Health Organization show the need for a cost estimation of the pandemic response during the risk-assessment phase. Several years after...

The forest seen from the inhabitants of Geneva: perception and economic values of the forest This article analyses the perception, behavior and relation of the population in the Canton of Geneva (Switzerland) with respect to forests. The results are based on a survey conducted in winter 2014. We observe that the Geneva population uses the forest le...

In this paper, we test for scope effects in Contingent Valuation applying different distributional assumptions for WTP, a non-parametric estimation and an estimation based on an open-ended format. Mean WTP is sensitive to the distributional assumption, but so is the scope effect. The nonparametric model, without conditions on the distribution, is t...

The objective of this review study is to improve the proficiency of cost calculation and forecasting in pandemic risk management. The 2009 A/H1N1 influenza pandemic has generated additional data and triggered new studies that open debate over the optimal strategy for handling a pandemic. A point of improvement for the risk analysis of such crises t...

Le présent rapport est le résultat de l’étude économico-environnementale sectorielle conduite par le Consortium sba-Ecosys-CEDRES. Il s’inscrit dans le cadre du projet Initiative Pauvreté Environnement (IPE, PNUD/PNUE) mis en œuvre au Burkina Faso sous l’égide du Conseil National pour l’Environnement et le Développement Durable (CONEDD) / Ministère...

Le présent rapport est le résultat de l’étude économico-environnementale conduit par le Consortium sba-Ecosys-CEDRES à travers un mandat du PNUD-PNUE. Il s’inscrit dans le cadre du projet Initiative Pauvreté Environnement (IPE) mis en oeuvre au Burkina Faso sous l’égide du Conseil National pour l’Environnement et le Développement Durable (CONEDD) /...

Au cours de ces dernières années, notre planète est restée marquée par des modifications environnementales impressionnantes qui menacent le développement durable. Comparativement aux pays du Nord, en Afrique, le problème se pose en termes d’activités agricoles par le biais de la dégradation continue des terres (désertification, érosion, surexploita...

A new Master Program in environmental technology and management has been developed in the framework of the Swiss-Jordanian cooperation, to ensure sustainable knowledge transfer in environmental management, technology, and economics. The areas represented in this program are cleaner production, hazardous substances management, and meso-economic anal...

Les analyses économiques de l’environnement permettent d’évaluer en termes monétaires les impacts environnementaux d’activités économiques. Depuis 1997, le secteur du ciment au Maroc recourt à ce type d’analyses (Ecosys & sba, 2004, 2007, 2008) afin de rendre compte des bénéfices environnementaux résultant de l’investissement de plus de 1 milliards...

In this paper, we assess the economic efficiency of Swiss water utilities. To reach this aim, we accessed a new and unexploited database, which counts 330 water utilities, representing about 55% of the drinking water distributed in Switzerland. The database spans over six years (2000-2005) and offers information on the type of the water production...

In a global environment, many authors affirm that integrated management tools (ERP) are indispensable to the SME. What is the situation of the Swiss SME in relation to the adoption of ERP and how do they react ? What is the profile of the Swiss SME that utilizes an ERP ? Our research is empirical. The statistical analysis of the answers from approx...

Thèse sc. écon. Genève. Literaturverz. Université, Genève

This paper examines how the marginal CO2 abatement costs vary throughout stages of economic development, and how these variations may be related to the Environmental Kuznets Curve (EKC) hypothesis. By assuming the existence of a technological link between production of desirable outputs and pollution, shadow prices of carbon emissions are estimated...

Macro-economic studies related to the cost of environmental degradation in the Middle East and North Africa region have been performed by the World Bank. Meso-economic analyses of industrial sectors in Arab countries are based on economic appraisals of the environmental costs and benefits of industrial production (cement, electricity) and urban com...

Due to persistent environmental problems, the industry worldwide is improving its capacity at capturing the economic value of the environment in order to integrate environmental remediation criteria into its decision making process. In- deed, uncontrolled environmental damages constitute as many foregone benefits. Therefore, estimating and controll...

Emternalities are a figurative counterpart to economic externalities. They represent and are a measure of the "envi-ronmental fraction" that is embodied in economic products but which is not captured by commercial markets. In contrast, externalities stand for and dimension the "environmental consequences" of economic production and con-sumption tha...