Another measure of correlation between binary variables

Question

There are several measures of association (or contingency or correlation) between two binary variables $p$ and $q$, among others

• Pearson's phi coefficient
  

• Cramér's V

I wonder how the following number $\kappa$ relates to known measures, if it is statistically interesting, and under which name it is (possibly) discussed:

$$\kappa = 1 - \frac{2}{N}|p \triangle q|$$

with $|p \triangle q|$ the number of samples having property $p$ or property $q$ but not both (exclusive OR, symmetric difference), $N$ the total number of samples. Like the phi coefficient, $\kappa = ± 1$ indicates perfect agreement or disagreement, and $\kappa = 0$ indicates no relationship

Answer 1

From the MSE companion site CrossValidated I learned that this measure is called Hamann similarity. Thanks to user ttnphns.