How to develop your skills?
It is necessary to know the subject (cognitive) and to practice it (behavioural). These are two distinct, though complementary, processes that go together differently.
When we take action, we systematically mobilise two distinct - and complementary - psychological forces.
One is to question the benefits of future action (motivation) and the other is to consider possible obstacles in order to overcome them (volition).
There is often confusion between nudges and notifications.
The latter is, however, one type of nudge among hundreds - provided it is designed in the right way - and rather low value added!
The two disciplines are often confused.
Behavioural Economics is included in the Behavioural Sciences (although it is better known because it has been awarded a Nobel Prize).