In bulk orders of, say, 10 metric tons of silk, standard high quality silk runs about $50 to $65/kilo. A premium quality silk runs $70 to $100. Silk is costly to produce. It takes a lot of mulberry leaves for each silkworm, and processing and reeling the cocoons is not cheap. There are any number of reasons why tv sets are cheaper now than in the past. Silk production has already benefited from automation. Production costs will not decline to the same extent that you report in TV sets. If you compare the cost of donuts in 1954 with the cost today, you wouldn't see anything like the cost differentials you are reporting for TV sets. This isn't even an 'apples to oranges' kind of comparison. It's like 'screwdrivers to apples.'
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