. >> reporter: few nor now he's renting the home and getting a 5% home but lanier, pulte and more are rushing to cash in, even employing the multigenerational floor plans and designs the chinese buyers want. and cash is king, a seemingly limitless amount. >> the price they are looking, it doesn't matter, 800, 1 million, 1.5. whatever, they like it -- they will, they will purchase it. >> reporter: while education and investment are the primary drivers, quality of life doesn't hurt, either. many of the buyers we spoke to said they like the climate and the lack of pollution in california and the political stability doesn't hurt, either. as for where all that cash is coming from, nobody wanted to talk about that. for "nightly business report", i'm diana olick in washington. >>> and to read more about what is driving the new boom for home builders head to nbr.com. >>> still ahead, ever wonder how the world's largest retailer makes sure the shelves stay stocked on black friday? we got a rare look inside walmart's very complex operation. >>> are you seeing more adds on your mobile phone or h