Was bedeutet eine negative Kovarianz?


Negative Kovarianz ist ein Hinweis darauf, dass die Bewegung in einer Variablen der Bewegung der anderen Variablen entgegengesetzt ist.


If X is moving upwards, Y is moving downwards
if X is moving downwards, Y is moving upwards.
. For example, when price is high, demand is less and when price is less, demand is more.
Here, the movement in the two variables are of opposite direction.
On the other hand, the more you prepare, the better your grade in the exam. Here both the variables move in the same direction.