Increasingly, lobbying groups are subject to transparency requirements, obliging them to provide detailed information about their business. We study the effect this transparency policy has on the nature of lobbying competition. Under mild conditions, mandated transparency leads to an increase in...

We develop a model of legislative lobbying where policy proposals are endogenous. We show that a policy proposer with preferences tilted towards one lobby may be induced by an increase in that interest group's size to propose policies geared towards the opposing lobby. Hence, a larger lobby size...