Gabriel indicates that he is willing to give up $10,000 in salary to take a job in Chicago; $1,000 for each additional week of vacation; and $2,500 to get his preferred industry, consulting. In essence, Gabriel has equated the value of incremental levels of salary to incremental levels of the three other issues. Put differently, he has priced out the various tradeoffs, or using slightly different language, has determined the marginal rates of substitution between one numerical issue (usually monetary) and all the other issues