Top Goldman Sachs Group Inc (GS.N) executives are determined to keep compensation costs under control. On Thursday, Goldman reported a 25 percent increase in quarterly revenue, but the money it set aside for compensation and benefits rose only 18 percent from the same period a year earlier. The amount of money it has set aside for compensation is more or less unchanged, as is the average compensation per employee, at around $320,000 for the first nine months of the year.