Political scientists elisabeth gerber finds that citizen groups are most effective at whereas business, trade associations, and professional associations are more effective at a. supporting public opinion; lobbying state legislatures b. sponsoring ballot measures; lobbying state legislatures c. lobbying state legislatures; sponsoring ballot measures d. supporting state legislatures; lobbying u. s. congress

Political scientists elisabeth gerber discover that citizen groups are most effective at sponsoring ballot measures whereas business, trade associations and professional associations are more effective at lobbying state legislatures. In addition, the administration process act and negotiated rule-making act play significant roles in introductory up the bureaucratic process to interest group impact by cheering federal agencies to consult affected interests or investors.