https://blog.google/products/adsense/our-move-to-a-first-price-auction/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+blogspot%2FMKuf+%28The+Keyword+%7C+Official+Google+Blog%29
AdSense for Content is announcing the intention to move its auction to first price to simplify the ad selling and buying experience.
first price auctionmovingadsense