Here&#x27;s a link to the slides that she used for the NBER talks. I&#x27;ve flipped through them and there seems to be some references to working papers (that Googling should be able to surface):<p><a href="https:&#x2F;&#x2F;onedrive.live.com&#x2F;?cid=351055fdce7d0ff1&amp;id=351055FDCE7D0FF1%21330395&amp;ithint=folder,pdf&amp;authkey=!ACqeqfcqAxdediE" rel="nofollow">https:&#x2F;&#x2F;onedrive.live.com&#x2F;?cid=351055fdce7d0ff1&amp;id=351055FDC...</a>