Any diversion from those four inputs leads to market uncertainty and reduced returns, or considering 1966-1982 and 1999 to the present, no gains at all.
Silvio Berlusconi, Italy's prime minister, leads a four-party ruling coalition that barely coalesces and scarcely rules.
The US Open champion leads the four-man event - for the season's Major winners - by five strokes.
Meanwhile, Silvio Berlusconi, the tycoon who leads a four-party coalition on the right, including the one-time separatists of the Northern League, the post-fascist National Alliance, his own Forza Italia and a little Christian Democratic offshoot, is grinning.
He now leads Lorenzo by four points, with Rossi a further five points adrift in third, but fourth-placed Pedrosa now looks to be out of the race after another painful crash which looked to aggravate the hip injury he sustained on Saturday.
Rovers, who had not won in the league since the opening day of the season and were knocked out of the Carling Cup by Aston Villa in midweek, had let leads slip in four previous games this season and looked certain to do so again in a remarkable finale.
Raikkonen is only four points behind Vettel, who leads with 89 after five races.
The U.S. and Costa Rica both have four points, but Costa Rica leads on goal difference.
The bank cites a slowdown in the price component of the PMI, which leads core inflation by four months, and signs that government policy to cool the economy is starting to work as positive signals.
"The first three cars were a little bit too fast for us and regarding looking after the tires, they did a better job, " said Vettel, who leads the championship by four points from Lotus's Kimi Raikkonen (who finished second on Sunday).
But greater eye contact, especially in intervals lasting four to five seconds, almost always leads to greater liking.
The youth of the founders (Brin is thirty-four and Page is thirty-five) leads to jokes that an adult like Schmidt, who is fifty-two, was essential to manage Google.
The church is offering a four-figure sum of money for information that leads to the return of the jewellery.
Corn ethanol's low power density is inherent in all biomass, which leads us to the second of the Four Imperatives.
Button has now triumphed in four of the five races so far this season and leads the title race with 41 points from Barrichello on 27 and Vettel with 23.
The latter leads this year's awards field, with four nominations in total.
Of Montgomerie's fellow Scots, Martin Laird leads the challenge and is also well-placed on four under, one behind McIlroy and Khan, with 10 holes still to play.
However, Loeb still leads nearest rival Solberg by 28 points in the championship with four rounds remaining after Britain.
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Rossi has now won four of the five races this season on the Gauloises Yamaha, and leads Melandri by 49 points in the overall standings.
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Cerrone contracts with four auto-referral Web sites, like Autobytel.com, which send her several hundred leads every month.
Howard leads a conservative coalition and has been in office since 1996, serving a lengthy four terms.
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On April 23rd Abdul Salam, a self-proclaimed prophet who leads another unorthodox group, al-Qiyadah al-Islamiah, was jailed for four years for blasphemy.
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It leads the pharmaceutical industry in new drug approvals for the past two years, with four brand-new drug molecules approved in 2001 and five approved in 2000.
The world's biggest automaker also promoted four non-Japanese managers to oversee regional businesses, including James Lentz, an American who already leads Toyota Motor Sales in the U.S. He will head the North American region.
The fact he's fought only four times since beating Ricky Hatton more than five years ago and has not fought in a year leads some in boxing to believe he may have as much trouble with ring rust as he has with Guerrero.
Roughly four-fifths of fusions succeed, but only two-thirds start down the path of development that leads to a new individual.
Across the span of four games in four cities, wild card playoff berths were on the line for underdogs to snatch from teams that lost large leads and who will watch the 2001 MLB postseason from the sofa.
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The McLaren driver leads Ferrari's Felipe Massa by one point ahead of the forthcoming Singapore Grand Prix, with just four races remaining.
"It's crazy, four guys within two-hundredths on one of the toughest downhills in the world, " said Svindal, who leads the downhill standings by 92 points from Paris and has a 114-point advantage in the overall competition.
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