What technique did Google use to preserve its "evil-free" culture when going public with an initial public offering in 2004?

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Google used a "Dutch auction" to preserve its "evil-free" culture when going public with an initial public offering in 2004. In a Dutch auction, buyers submit bids that state the number of shares they want and the price they are willing to pay. The price then starts high and is progressively lowered until all the shares are sold. This allowed Google to avoid underpricing its shares and deter flipping, while also giving a wider range of investors an opportunity to participate in the IPO.

What Technique Did Google Use to Preserve Its "Evil-Free" Culture