15 What point is made in the first paragraph?
　　A Interest in commodity markets has decreased.
　　B Overall levels of expertise have improved.
　　C Opportunities to exploit your knowledge were limited in the past.
　　D External market forces have meant knowledge is underpriced.
　　16 What are we told about the current impact of the internet in the second paragraph?
　　A Publishers benefit from their exploitation of the internet.
　　B The internet has made it easier to analyse business trends.
　　C It is difficult to calculate the true economic value of the internet.
　　D The internet facilitates the development of the knowledge economy.
　　17 In the third paragraph, what does the writer say about knowledge?
　　A Acquiring knowledge can be expensive.
　　B The most valuable knowledge concerns IT.
　　C Trading knowledge raises issues of security.
　　D New businesses find it hard to trade in knowledge.
　　18 What point is made about knowledge in the fourth paragraph?
　　A It provides specialist information.
　　B Its appeal lies in its exclusivity.
　　C It can generate new ideas.
　　D Its value accumulates.
　　19 Which application of knowledge does the writer regard as particularly useful?
　　A analysing manufacturing trends
　　B introducing compatible parties
　　C interpreting time constraints
　　D advising on legislation
　　20 What key feature is provided by Indicater.com?
　　A approaches that reflect the providers' own experience
　　B access to appropriately trained potential employees
　　C advice which directly benefits the bottom line
　　D advertising which is carefully targeted