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David Card, Joshua Angrist, and Guido Imbens win a Nobel Prize for revolutionizing how economics is done.

David Card, Joshua Angrist, and Guido Imbens win a Nobel Prize for revolutionizing how economics is done.

David Card, Joshua Angrist, and Guido Imbens win a Nobel Prize for revolutionizing how economics is done.

David Card, Joshua Angrist, and Guido Imbens win a Nobel Prize for revolutionizing how economics is done.

David Card, Joshua Angrist, and Guido Imbens win a Nobel Prize for revolutionizing how economics is done.

<p><span>Good morning.  To open, I have to note that my remarks are my own and do not reflect the views of the Commission or my fellow Commissioners.</span></p>

Of virus around you. when you have a lot of virus in a community, you need to have a lot of these layers in place. very important. kids should not be going to school when they are symptomatic. that happened here, it seems like. and we also know that masks are very important for protecting the individual but also masks work best when everybody around you is also masked. think about -- there was this case study reported by the cdc out of california where an unvaccinated, un-masked teacher went to ...

But its another thing to prove it to a jury to -- by what we call a preponderance of the evidence in a court. >> so, dr. wen, when you look at this -- at this wisconsin school -- you know, where are the breakdowns in -- in the possible protections that they couldve had in place? >> there are so many. so, lets talk about the layers of protection. so think about this as its really cold outside, and you want to wear multiple layers to keep you warm. its similar when you have a lot of virus around y...

An analysis of the gendered dynamics in the class struggle in the 1970s US service sector.

10/11/21 Photonics Online Newsletter