In order to keep a balanced butthole, it's crucial that you never shit more than you piss. Shitting too much creates disequilibriating urethral pressures, while overpissing creates intolerable bung-side pressures. While Presinold Bungold Reagan was a major proponent of bung-side economics, it never worked out and the neoliberal strat remained GOATed among the Shittycago Boy-led consensus.
Proponents of MMT (Modern bowel Movement Theory) however hold a different hypothesis. Replacing the Balanced Butthole hypothesis, they argue the excreter has more levers to pull on than assumed by neoliberal excretometry. Namely, fiber consumption, pre/probiotics, and (to a lesser extent in certain systems like market socialism and imperialist social democracy) prostate stimulation. Under their model, MMT excretometrists argue that while bungside forces do affect need-to-piss (NtP), gross displaced piss (GDP) is the main measure of economic health and operates largely independently of bungside forces. They criticize the neoliberal model of fecal density intensity (FDI) which assumes a fixed, zero-sum relationship between fecal volume stored and piss volume; store more piss by shitting more shit. Instead, they suggest GDP can be increased by increasing pissing frequency, fluid intake, and even aesthetics of the piss trough.^1^ This covers direct growth of GDP.
MMT excretometrists also account for the second-order effects of bungside forces. Furthering their rejection of neoliberalism, they highlight the diet-agnostic effects of DIRECT prostate stimulation on reducing fecal volume. Other innovations include diet-proscribing policies such as higher fiber intake (such as through Beanis) and wholesale bans on shit expanders and removeders like cheese, dairy, and excessive treat consumption---destroying the neoliberal excretomists principal of fixed FDI.
Furthermore, so-called piss pills (diuretics in advanced theoretical works) such as spiroanalactone can directly increase NtP.
Consequently, it is possible to significantly boost GDP without a concomittant rise in shitting. You can piss more than you shit!
^1^ Interestingly, they find outdoors pissing and especially opportunities for prairie and secluded tree pissing induce the greatest growth in GDP
Note: trickle-down is commonly mistaken to mean post-piss dribling when in fact the technical language specifically refers to the case of wet bungal incontinence.