University of Chicago economist Christian Broda opines because the affluent tend to consume more goods and services that typically have less competition, this means their prices are less elastic than goods and services who are subject to greater competition. Please identify at least one good and one service that has relatively lower competition and how their prices reflected this decreased level of competition. Please do the same for at least one good and one service where there is expensive competition and this high degree of competition is reflected by lower prices. Use concrete examples.