So use the booklet. Memorize its layout. But more importantly, interrogate it. That is the difference between a calculator and an economist.
At first glance, the IB Economics HL Formula Booklet appears to be a simple appendix: a collection of 20-odd equations, constants, and abbreviations. Many students treat it as a memory crutch for elasticity and profit calculations. But this is a misunderstanding. The booklet is, in fact, a distilled philosophy of the neoclassical paradigm—a formal language for translating human behavior into measurable variables. ib economics hl formula booklet