This results in either stimulative or inhibitive effects, resulting in overproduction or underproduction of hormones. Notably, he maintained a dialogue with John Maynard Keynes concerning stimulative fiscal policy. Republicans have countered the Bush tax cuts are stimulative and therefore do not require funding. Policies that help reduce mortgage debt or household leverage could therefore have stimulative effects. These receptors are linked to a stimulative or inhibitory regulative G-protein. In some plants, pollination or another stimulation is required for parthenocarpy, termed stimulative parthenocarpy. The above routes have had a stimulative effect. The incoming shell fire had a highly stimulative effect on the personnel at Battery Russell.