The impact of liquidity risk of banks on European and BRICS countries
GDP = a + b* Risk + u
Data: Europe + BRICS for years 2000 - 2015
What is the impact of risk on GDP?: Ans: b <- applies to all countries in your sample.
(1) Separate the sample.
GDP = a1 + b1* Risk + u1 using Europe
GDP = a2 + b2* Risk + u2 using BRICS
What is the impact of risk on GDP?: Ans: b1 if Europe, but b2 if BRICS
(2) Including an interaction:
GDP = a + c1 * Risk + c2 * Risk * 1(BRICS) + u
1(BRICS) dummy: 1 if BRICS, 0 if non-BRICS
If BRICS … GDP = a + (c1 + c2) * Risk + u
If Europe … GDP = a + c1 * Risk + u