This value prevents symmetrical groups of players of different sizes from being treated equally. We use efficiency, additivity, the null player property, and two new properties to give an axiomatic characterization. The first property, called joint productivity, is a fairness property within components...
Your silver Washington quarters value has a base price of $5.08 . With the value of silver in the $30.23 per ounce range, updated 1/13/2025 . A step by step method is presented to judge collector quality and identify the silver Washington quarters worth more. ...
2.1.1795 Part 4 Section 19.1.2.6, formulas (Set of Formulas) 2.1.1796 Part 4 Section 19.1.2.7, group (Shape Group) 2.1.1797 Part 4 Section 19.1.2.8, h (Shape Handle) 2.1.1798 Part 4 Section 19.1.2.9, handles (Set of Handles) 2.1.1799 Part 4 Section 19.1.2.10, ima...
Whatwouldmake a 1971-S penny rare would be a very high-quality coin, or one that had an interesting error. Look for doubling on the letters of “United States of America” and “Liberty”. Coins with this error are far rarer and can be valuable....
Interestingly, collectors highly appreciate these pieces and are often prepared to set aside serious money to get one of them. It is the same with1986 Lincoln pennies. You can find coins struck this year with three typical errors, but finding those with a weird look doesn’t mean you have ...
it was far from my idea of a fun Saturday, but I wanted that internship. When I was later offered the internship, I realized my sacrifice hadn’t gone unnoticed. The company appreciated my demonstrated interest, curiosity and determination enough that it set me apart from the other applicants...
A coalition structure is a partition of the set of players such that the cooperation is possible only if the players belong to the same element of the partition. They introduced the concept of value for games with coalition structure. In this case, the final coalitions are the elements of ...
Therefore, the monetary metal theory, the nominal theory of money and other related theories came into being successively. The monetary metal theory was first put forward by mercantilism. British economist Stafford (1554–1612) stressed that only gold and silver were the real wealth of a country,...
made from 90% silverin 1964but later reduced to 40% silver. From 1971, it was made from a copper-nickel mixture. In 1975, Congress allowed the use of 40% silver for proof halves during the bicentennial. More than 69 million Kennedy Half Dollars were mintedin 1979and are easy to find ...
South Africa also issues bullion coins with the classic Krugerrand design in two other precious metals now: Silver Krugerrands and Platinum Krugerrands. This allows collectors of the South African coin series to diversify their investment with platinum coins and silver coins. 2017 Platinum Krugerrand ...