Incremental contracts are one step down from a full central contract and are appearance based.
There are bound to be questions about the value of Vaughan's central contract as well.
In September, he lost his central contract with the England and Wales Cricket Board.
The central contract states that the ECB have the ability to decide where and when contacted players will play.
"Kevin has signed a central contract today, " Clarke told a media conference.
Modi also said England paceman Steve Harmison, who has a central contract but is currently out of favour, would be a welcome addition to the start-up league.
With Ian Bell keeping his contract, Eoin Morgan is the only player of the team who featured in England's last Test not to get a central contract.
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Kaneria had criticised his central contract demotion from category B to C in his online column, but later blamed a newspaper for publishing his words out of context.
"I got a central contract at 20 when I had only played 10 first-class games, which probably wasn't enough to warrant a place in the England team, " he told BBC Sport.
Vaughan stood down as captain in August after a poor run of form and was dropped for the recent tour of India, although he retained his central contract with the England and Wales Cricket Board.
Although he was briefly recalled to the squad that summer, he was overlooked for the 10-wicket defeat by South Africa at Headingley, his home ground, in favour of the uncapped Darren Pattinson - and lost his central England contract in September 2008.
The 40-year-old central defender is out of contract with the Scottish champions at the end of the season.
While the central issue involves an arbitration contract, this case is really about the economics of class actions, which allow lawyers to bundle together hundreds or millions of small claims into a very powerful weapon to induce companies to settle on their terms.
The Santander Central Hispano bank has forecast the economy could contract by 40% in the first quarter of 2003 and the central bank has put annual inflation at 33.8% in January, the highest in five years.
He even has a five-year contract with the Malaysian Central Bank run non-profit, International Center for Leadership in Finance, to train 210 IR managers per year on how to come up with a road map for the organization.
The federal-funds futures contract is also betting that the central bank will not be able to ease much further, despite Mr Greenspan's hints to the contrary.
They lost the contract to provide technical assistance to its central bank.
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In a statement on Monday, Charles Hurst said the vehicle had not been supplied for anyone individual and that the tyre contract was awarded by the government's central procurement agency rather than directly by the Fire Service.
And he hit out at the PCB when he was not given one of the 15 central contracts in January, refusing to sign a special retainer contract on offer instead.
Meanwhile, the French central bank has said it expects the country's economy to contract in the third quarter.
These included Stoke completing a deal for keeper Begovic on a four-and-a-half-year contract, striker David Nugent's loan deal being extended at Burnley, while Tottenham re-signed central defender Younes Kaboul.
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