So far, Bloomberg has kept everyone guessing over his intentions but media reports have suggested that he would not be dependent on donations as he could easily spend USD one billion on his own if he so decides.

Bloomberg, whose worth has been estimated by Forbes magazine at about USD 12 billion, had spent around USD 70 million of his own money on campaign in 2001 when he first successfully ran the office of Mayor and USD 84 million during re-election in 2005.

Though Bloomberg denies that he would run, his aides are aggressively laying the groundwork for him and constantly assessing his chances.

What has sparked fresh speculation was his joining Democrat and Republicans elder statesmen to pressure major party candidates to renounce partisan gridlock.

The Times also said that Bloomberg had been more candid with friends and associates about his interest in running.

Despite public denials, the mayor has privately suggested several scenarios in which he might be a viable candidate, the paper added.