The following information is for a public good.Pa and Pb are the prices that individuals A and B are willing to pay for the last unit of a public good, rather than do without it.These people are the only two members of society.Suppose the government has already produced 4 units of this public good.The amount individual B is willing to voluntarily pay for the 4th unit is: 
Definitions:
Reliability Estimate
A measure of the consistency of a psychological test or assessment tool across time, items, and raters, indicating its stability and dependability.
Alternate Forms
A method of assessing reliability by administering different versions of an assessment tool to the same group of people and comparing the results.
Publisher's Attempt
Efforts by a publishing entity to produce and distribute content, such as books, articles, or software.
Reliability
How consistently and stably a measurement instrument yields results across different instances.
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