What a journey! It had cry and laughter, boredom and adventure, weakness and strength, and lots of WOW! I've learned so much, on all kinds of teachings, and in interaction with great people that I was lucky to have along my journey. So many that it is not possible to name everyone involved in creating this doctoral dissertation. It could go as far as reaching Buddha. Because, guess what: everything is related! I want, however, to acknowledge some great people that were particularly present during these last five years.My mom, Maria Isabel Antunes, is the strongest and most loving woman I know. She has the power to communicate with anyone, from all languages. She only uses her motivation, a few Portuguese words just for the beauty, and if you're lucky, a superb traditional Portuguese dish. My 2x-cousin and buddy 4ever, Gabriela Farinha, the sharpest woman I know. Her unconditional support and always wise advice, besides helping me get rid of my troubles, also taught me to do the same: to be there for my beloved ones. My Dutch handsome prince, Jorrit Kuiper, the most loving partner I could ever dream of. He has enriched my journey with lots of care and fun. I have learned greatly from his practicality, as an exemplar Dutch, and his marvellous cooking, way beyond Dutch standards! My brother, João Farinha Fernandes, the most brilliant economist. He is solid like a rock, strong like a lion, protective as a big brother. I'm deeply thankful for his support so many times along the journey. The Pandilha, a group of fun loyal loving friends that live in my heart and to whom I can reach at any time, always.