A lenders requirements regarding how information about income and assets must be provided by the applicant and how it will be used by the lender. The following categories have evolved in the market. Full Documentation: Both income and assets are disclosed and verified, and income is used in determining the applicant's ability to repay the mortgage. Formal verification requires the borrower's employer to verify employment and the borrower's bank to verify deposits. In some cases, in order to save time, lenders will accept copies of the borrower's original bank statements, W-2s, and paycheck stubs. At one time, full documentation was the rule and it remains the standard. In recent years, however, other documentation programs have grown in importance. They make it possible for consumers who are unable to meet standard requirements to qualify for a loan nonetheless. Stated Income-Verified Assets: Income is disclosed and the source of the income is verified, but the amount is not verified. Assets are verified and must meet an adequacy standard such as, for example, six months of stated income and two months of expected monthly housing expense. Stated Income-Stated Assets: Both income and assets are disclosed but not verified. However, the source of the borrower's income is verified. No Ratio: Income is disclosed and verified but not used in qualifying the borrower. The standard rule that the borrower's housing expense cannot exceed some specified percent of income, is ignored. Assets are disclosed and verified. No Income: Income is not disclosed, but assets are disclosed and verified and must meet an adequacy standard. Stated Assets or No Asset Verification: Assets are disclosed but not verified, income is disclosed, verified, and used to qualify the applicant. No Asset: Assets are not disclosed, but income is disclosed, verified, and used to qualify the applicant. No Income-No Assets: Neither income nor assets are disclosed. While these categories are fairly well established in the market, there are numerous differences between individual lenders in the details. For example, under a stated income program lenders may or may not require that applicants sign a form authorizing the lender to request the applicant's tax returns from the IRS in the event the borrower defaults. Similarly, lenders differ in the amount of assets they require. The proliferation of different documentation programs reflects a realization by lenders that many consumers with the potential for home ownership were shut out of the market by excessively rigid documentation requirements. It also dawned on lenders that documentation could be viewed as a risk factor that could be priced or offset by other risk factors.