Marcelo Tyszler

Royal Tropical Institute | KIT · Sustainable Economic Development

Policies encouraging shifts towards more plant-based diets can lead to shortfalls in micronutrients typically present in animal products (B-vitamins, vitamin D, calcium, iodine, iron, selenium, zinc, and long-chain omega-3 fatty acids). We modelled the effect of fortifying foods with these critical micronutrients, with the aim of achieving nutritio...

Background: To keep global warming <1.5°C as recommended by the Intergovernmental Panel on Climate Change (IPCC), eating patterns must change. However, future diets should be modeled at a national level and respect cultural acceptability. Objectives: We aimed to identify diets among Dutch adults satisfying nutritional and selected environmental...

This study aims to contribute to the cocoa sector’s body of knowledge by demystifying current trends, and providing a solid evidence base to test common assumptions and beliefs.

Objective: To quantify the performance of food products in a sustainable diet based on the balance of their contribution to nutrient intake and environmental impact, within the context of the Dutch diet. Design: While fixing the quantity of a specific food group at different levels, optimized diets that met nutrient requirements and stayed as close...

Background: The Sustainable Development Goals strongly focus on equity. Goal 5 explicitly aims to empower all women and girls, reinforcing the need to have a reliable indicator to track progress. Our objective was to develop a novel women's empowerment indicator from widely available data sources, broadening opportunities for monitoring and resear...

Objective To find diets optimised on nutrition and environmental impact close to the current Dutch diet and to identify the most effective and acceptable options for mitigating environmental impact. Design Linear programming was used to optimise diets of Dutch men and women aged 9–69 years, divided into ten age–gender groups. The analysis included...

This White Paper defines empowerment of women and girls as 'the expansion of choice and strengthening of voice through the transformation of power relations, so women and girls have more control over their lives and futures'. Empowerment is both a process and an outcome. This White Paper presents a conceptual model on women and girls' empowerment,...

The connection between the economy and vote choice continues to garner interest both in the academic and popular press. To isolate the effects of economic considerations, we develop a laboratory experiment that allows us to vary these considerations at three levels: the individual, community, and national economy. Choices by policymakers directly a...

Purpose Eating healthier or vegetarian and vegan diets are suggested options to reduce the environmental impact of the current diet. In this paper, we demonstrate a method that is able to identify diets with reduced environmental impact and are more similar to the current diet than predetermined scenarios. All diets were adequate and consisted of c...

We theoretically and experimentally study voter behavior in a setting characterized by plurality rule and mandatory voting. Voters choose from three options. We are interested in the occurrence of strategic voting in an environment where Condorcet cycles may occur and focus on how information about the preference distribution affects strategic beha...

Background: This study aims to find diets with low price and low climate impact, yet fulfilling all nutritional requirements. Methods: Optimization by linear programming. The program constrains 33 nutrients to fulfill Dutch dietary requirements. In a second cycle, the upper boundary for climate impact through greenhouse gas emissions (GHGE) is set...

By using data from a voluntary contribution mechanism experiment with heterogeneous endowments and asymmetric information, we estimate a quantal response equilibrium (QRE) model to assess the relative importance of efficiency concerns versus noise in accounting for subjects overcontribution in public good games. In the benchmark specification, homo...

To evaluate the greenhouse gas emission (GHGE) of diets in Dutch girls, boys, women and men and to explore associations with diet composition. Descriptive analyses for the total population as well as stratified for gender, age and dietary environmental load. The Netherlands. Dutch children and adults aged 7-69 years (n 3818). The GHGE of daily diet...

Agri-footprint is a new life cycle inventory database that focuses on the agriculture and food sector. The goal of this database is to support life cycle assessment practitioners to perform high quality assessments. The database contains a methodologically consistent dataset for a large number of crops, crop products, animal systems and animal prod...

Purpose In this article, we present an innovative way of deriving comparable functional systems for comparative life cycle assessments (LCAs) of food products. We define the functional unit as the contribution of one or more foods to the nutrient composition of a weekly diet and, after a product substitution, employ a product system expansion appro...

Food choices influence health status, but also have a great impact on the environment. The production of animal-derived foods has a high environmental burden, whereas the burden of refined carbohydrates, vegetables and fruit is low. The aim of this study was to investigate the associations of greenhouse gas emission (GHGE) and land use of usual die...

Er is een studie uitgevoerd naar de duurzaamheid van enkele Europese eiwitbronnen ter vervanging van sojaschroot van Zuid-Amerikaanse herkomst. Op basis van data uit de literatuur en de systematiek van het programma FeedPrint zijn de nutritionele waarde en de carbon footprint (CFP) van deze eiwitbronnen vastgesteld. Deze eiwitbronnen zijn ingereken...

We study strategic voting in a setting where voters choose from three options and Condorcet cycles may occur. We introduce in the electorate heterogeneity in preference intensity by allowing voters to differ in the extent to which they value the three options. Three information conditions are tested: uninformed, in which voters know only their own...

Voting is likely the tool most strongly associated with the idea of democratic decisions, be it at national or local elections, decisions within a parliament, committees, juries or even at company boards. In turn, the outcomes of voting processes potentially affect a large constituency. Therefore, understanding voter behavior is of major interest i...

We theoretically and experimentally study voter behavior in a setting characterized by plurality rule and mandatory voting, where voters choose from three options. We are interested in the occurrence of strategic voting in an environment where Condorcet cycles may occur. In particular, we focus on how information about the distribution of preferenc...

I study voter behavior in a setting characterized by majority rule and mandatory voting, where voters choose from three options. Because of the possibility of Arrow's cycle, strategic behavior may emerge. In particular, I focus on how information contained in election poll results affects voter's choices. By normalizing the utilities of the best an...

I extend Sutter's (2003) experimental study on the strategic use of fiscal deficit by adding a panel structure to his design. The results strengthen Sutter's conclusions. Panel estimates are strong and with the expected signs. Generally, the results support the political-economic theory applied to fiscal deficits. In particular, the impact of polar...

Este artigo se propõe a conhecer, analisar e sistematizar, crítica e estrategicamente, o que diferencia os empreendimentos sociais que atuam por meio da arte para obter mudança social, a partir de um estudo qualitativo. A parte inicial aborda a fundamentação teórica, enfocando prioritariamente o conceito de empreendedorismo social. Em seguida, o ar...

This article results from a qualitative study intended to understand, analyze and systematize, both critically and strategically, what differentiates social organizations that use art to achieve social change. Initially, it presents the theoretical framework focusing primarily the concept of social organizations. Next, it narrows the analysis to th...

The Brazilian Laws of Fiscal Incentives to Cultural Investment were created in the beginnings of the decade of 1990, making governmental funds provided through tax revenues available for cultural investment. The main features of these laws are related to fiscal incentives in the form of tax credit. Depending on the law and article used it is possib...

Com o crescente uso das teorias e métodos vindos das áreas de economia regional e urbana, economia e econometria espacial na fronteira entre as áreas de economia e políticas públicas, estudar esse arcabouço teórico e metodológico torna-se relevante no campo da análise de políticas públicas. O objetivo geral dessa dissertação é discutir de modo crít...