Economic factors influence, but often the key is in setting up the campaign itself. For lawyers and related fields, the
ppc marketing for law firms approach works. Specific keyword processing, filtering of junk traffic, adjusting geo and time of impressions. It's important not to chase the number of clicks, but to build a campaign for specific requests of potential clients who are really ready to pay. Plus, adding call tracking helps to filter out channels where the budget is being drained.