1 Introduce the activity. Q1: How to make a suggestion? 2. Alone or in pairs, learners match the remaining functions to the actual words. 3. Check their answers and then elicit alternatives for each function
1 Stationarity and unit Root testing WHy do we need to test for Non-Stationarity? The stationarity or otherwise of a series can strongly influence its behaviour and properties -e.g. persistence of shocks will be infinite for nonstationary series Spurious regressions. If two variables are trending over