Unit 1.4.4 - Shifts in a PPCThis section of the Cambridge IGCSE Economics (0455) syllabus requires students to understand the causes and consequences of shifts in a PPC in terms of an economy’s growth.It is possible for an economy"s PPC to shift over time. An outwards shift of the PPC represents economic growth, whereas an inwards shift represents a prolonged economic recession. Economic growth (as illustrated in the...