Sentence:  This wave of "financial innovation" led to rapid growth in subprime lending, which was enhanced on the demand side by the housing boom and general asset price bubble. While the party lasted everyone was <WSD>happy</WSD>. Mortgage lenders were <WSD>happy</WSD> to lend and keep subprime loans off their books via securitization. Issuers of ABSs were <WSD>happy</WSD> to get their commissions. Borrowers were <WSD>happy</WSD> to get loans without scrutiny. Investors were <WSD>happy</WSD> to acquire assets that were "risk-free" and offered a return of hundreds of basis points over that offered by US Treasuries. 
Meaning of the word marked with <WSD> tags:  Content, satisfied (with or to do something); having no objection (to something).