a recent paper by stanford economists paul romer and charles jones summarizes the state of growth econ. washington should note that among the six stylized facts are the importance of market scale and human capital for growth. most interesting is that population and per capita income growth have been accelerating over human history. since 1820, u.s. income per capita has grown by a rate that accelerates roughly 0.1% every decade. but you have to wonder, have we peaked? i'm tim kane. >> tom: just a reminder: you catch us online at nbr on pbs.org. there you'll find all the market data from the program, and you can watch any programs you may have missed. >> suzanne: finally, a new approach to selling newspapers. the publisher of the "philadelphia inquirer" and the "philadelphia daily news" is offering discounted tablet computers to new subscribers. they go on sale tomorrow for $99 with a two-year digital subscription to one or both papers. tom, the tablets will be offered first-come, first-served to those who buy the company's four apps. >> as a home town philadelphia girl i'm happy to see

i'd like to see ron paul and buddy romer get in there as a team. caller: i wanted to stick up for regulations. my uncle died of bess -- asbestos exposure. as early as the 20th century we knew asbestos could give you cancer. it took us until the 1980's and 1990's to regulate it because companies don't have to follow environmental standards. but the downside is that american people get cancer. cancer rates are 65% higher without regulations. in areas where they have natural gas, the rates of breast cancer are the highest in the country. i'm studying environmental law right now and in the early 20th century there was no regulations, the quality of the meat was so sub standard, people were getting sick. so they finally had to regulate the meat industry. "silent spring" was written about the affects these toxins have on mammals. host: ok. we'll have to leave it there. executive plans for growth. the piece says this "so far business leaders have been standing firm with executives using fewer firms for hiring. this according to meetings held by financial

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