What we agree on today is just the beginning of a process of bridging the gap and difference among all of us.

CNN: Transcript of Mahmoud Abbas' speech at Egypt summit

The tax gap is the difference between the total tax that should be paid in the UK economy if the law operated as parliament intended, there was no tax evasion and people paid their taxes when due.

FORBES: Closing The Tax Gap Is In The Interests Of Every Honest Business

The gap refers to the difference between state pension provision and the level of pension regarded as necessary to live on by the OECD.

BBC: Pension provision still falling, says ONS