I figured executive boards are usually very small, 6-12 people and don't need reserves.
Edit: Should all be working now, but only if you reset your airline. Happiness is affected by salary and reserve level, and attrition is affected by happiness. As of now the industry averages are very sensitive, that's because not all airlines are represented in the average calculations. Once the game reset takes place it'll be much more accurate.
Right now none of these numbers do anything, if you have low happiness it will have no effect. Tomorrow I will work on implementing the 'Employee Training' cost, which will be directly affected by your attrition rate.
Edit: Should all be working now, but only if you reset your airline. Happiness is affected by salary and reserve level, and attrition is affected by happiness. As of now the industry averages are very sensitive, that's because not all airlines are represented in the average calculations. Once the game reset takes place it'll be much more accurate.
Right now none of these numbers do anything, if you have low happiness it will have no effect. Tomorrow I will work on implementing the 'Employee Training' cost, which will be directly affected by your attrition rate.
I am the developer of Airline Enterprise