Like a Roth IRA, you can contribute up to $5,000 per year, although if you earn less than $5,000 in a year youâre allowed to contibute 100% of your earned income (whichever is less). If youâre over the age of 50, you can make catch-up contributions of $1,000 for years 2009 and 2010.oth IRAs. For Roth IRAs, you can contribute $5,000 per year if youâre under the age of 50 and as much as $6,000 annually if youâre over the age of 50.
Glossary of game theory terms. Zero Sum. A zero sum game is a special case of a constant sum game in which all outcomes involve a sum of all player's payoffs of 0. Hence, a gain for one participant is always at the expense of another, such as in most sporting events.
The lowest theoretical temperature is absolute zero, at which the thermal motion of all fundamental particles in matter reaches a minimum. Although classically described as motionless, particles still possess a finite zero-point energy in the quantum mechanical description.