The West tried to crush Russia's economy. Why hasn't it worked?

Why haven't the international penalties knocked Russia out of Ukraine? The answer often comes down to two factors: political will and technical ability. Legal, financial and even military resources are required to enforce the various punishments — whether that's fending off lawsuits from Russian citizens whose money is frozen or staffing inspectors at commercial ports. But the countries pursuing the campaign don't always have the same focus, finances or rules, making enforcement lopsided across allies. Politics further complicate the equation: It's hard for one government to pressure another to stop buying Russian products if it needs that country's cooperation on…