This ECO100 economics assignment provides detailed solutions to three problem-solving questions. It covers the production possibilities frontier (PPF) with a graphical representation of car and bicycle production in Newland, explaining how technology and trade can increase production. The assignment also analyzes market equilibrium using supply and demand functions, calculating consumer and producer surplus, and evaluating the impact of price changes. Furthermore, it discusses the effects of online video rentals on the DVD market and explores price elasticity concepts. The document includes relevant diagrams and numerical calculations to support the analysis. Desklib provides access to similar solved assignments and past papers for students.