Positive and negative convexity

[johntavv]

I undrstand the below:
a callable bond with less negative convexity (compared to a callable bond with more negative convexity) has greater price appreciation when rates decline.
But why does the below occur:
a callable bond with less positive convexity (compared to a callable bond with more positive convexity) has greater price appreciation when rates decline.
Are the positive and negative convexity having the same effect on the callable bond?

 

[S2000magician]

The second part’s wrong.
Where’d you read that?

 

[johntavv]

S2000magician wrote:
The second part’s wrong.
Where’d you read that?

So should it be:
a callable bond with less positive convexity (compared to a callable bond with more positive convexity) has less price appreciation when rates decline.

 

[AmruthSundarkumar]

Yes.