Cobweb of calculations no way to value CBC

Apparently there's no better bargain than the CBC. A Deloitte & Touche LLP study says the broadcaster's $1.7-billion budget adds $3.7 billion to the Canadian economy, $1.3 billion more than any other possible use of the money. Clearly the CBC couldn't have found a better bargain than this report. But for the rest of us, the crucial question is, how do they know that?

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ColumnsJohn Robson