Skyler starts doing the books for Walter’s drug income and is ready to learn how the money gets laundered. She doesn’t think Saul’s setup is legitimate enough to get past the IRS so she wants to talk to him directly. It turns out that Saul’s ideas seem ludicrous to her. One unintended consequence of policies that outlaw the production/distribution/consumption of drugs is the creation of money-laundering operations such as “Ice Station Zebra Associates”. Walter uses this “company” to launder the money he earns from manufacturing methamphetamine.
See more: government regulation, market power, price ceilings, quotas, rational model of crime, underground economy, unintended consequences
The Economics of Breaking Bad 