Developing countries in competition for foreign investment

This study analyzes the competition for foreign direct investment (FDI) among countries at different stages of development. It is assumed that domestic companies in a more-developed country use more capital in production and that wages in a less-developed country are lower. Countries can compete for FDI by increasing the supply of public inputs in the economy, in addition to (or instead of) offering subsidies or tax reliefs to foreign investors. The results reveal that if governments of competing countries are not allowed to discriminate between domestic and foreign firms, there may be situations in which a less-developed economy will attract FDI depending on the labor cost differential and the responsiveness of foreign investor's and domestic companies' output to changes in the supply of public inputs. If tax discrimination between domestic and foreign firms is permitted, both countries will optimally raise the supply of public inputs, but the more-developed country will always win the foreign investment despite higher labor costs. Thus, governments of less-developed countries may have an incentive to work on an international agreement to disallow tax discrimination.     

Functional Foods and the Young

Factors such as raised consciousness about human health, development of the food industry, and medicine and branches of natural science studying the relation between nutrition and health have led to the popularization of foods with proven health effects. Such foods are called functional foods. Although there is growing interest in functional foods, there are several groups of consumers that are, more than others, interested in functional foods. To examine buying behavior and attitudes toward functional food of young consumers (18–30 years old) and to determine the most interested consumers, we conducted a survey using a self-administered questionnaire on a sample of 570 Croatian students. The majority of the respondents purchase functional foods, usually in supermarkets. Apart from taste, the most important functional food attribute is price/quality ratio. Respondents are buying functional foods because they believe that those foods are healthier and safer than other products. Examined market segments were based on respondents’ attitudes toward functional foods. The results of this research could be used in planning further development of the functional foods market for young consumers.     

Markov decision processes under model uncertainty

We introduce a general framework for Markov decision problems under model uncertainty in a discrete-time infinite horizon setting. By providing a dynamic programming principle, we obtain a local-to-global paradigm, namely solving a local, that is, a one time-step robust optimization problem leads to an optimizer of the global (i.e., infinite time-steps) robust stochastic optimal control problem, as well as to a corresponding worst-case measure. Moreover, we apply this framework to portfolio optimization involving data of the . We present two different types of ambiguity sets; one is fully data-driven given by a Wasserstein-ball around the empirical measure, the second one is described by a parametric set of multivariate normal distributions, where the corresponding uncertainty sets of the parameters are estimated from the data. It turns out that in scenarios where the market is volatile or bearish, the optimal portfolio strategies from the corresponding robust optimization problem outperforms the ones without model uncertainty, showcasing the importance of taking model uncertainty into account.