brendan: an index hour, we have got alan krueger on to talk jobs but also some work he did with uber looking at the sharing economy. carlthe nature of work changed enough to also change the way wages and unemployment work? carl: well the nature of work is continually changing. union membership declining since the 1960's, the different industries that are driving the economy have changed over that time. we are much less dependent on the manufacturing sector for employment. inventory management has become much more efficient, so all of these things have changed, which is why it is hard to draw parallels to cycles from the 1950's, 1960's, and 1970's, and is probably more instructive to look back to maybe 1990's, and more importantly the 2001 to 2007 sector. olivia: the rise of the part-time economy, the sharing economy, the uber economy is why we still see slacken wage? josh: it is possible -- joe: it is possible. this was a fertile ground for them to rise because there was all this labor slacken opportunity. it will be a while before we know anything about what the real impact on the economy is, but i think it makes sense