
Originally Posted by
Keyser Soze
Most modern economics is done based on “fag packet” assumptions. Examples:
1. Gordon Brown: We’ll borrow to “invest” (Brown code language for “current spend”) on the assumption of “Growth”. Growth which never matched his predictions post 2005, hence the debt spiral.
2. Starmer’s assumptions is also supposing “growth” at assumed levels. Those levels are untested and impossible to know. So we should base them on a GDP level less than current, to be cautious. Any upside is a gain. This is just basic, prudent, financial planning assumptions
3. The OBR and Treasury equally make such assumptions on growth. 40-50% of the time they are crap, and based on crude linear analysis, which any baboon armed with a spreadsheet and a GCSE could knock up.
4. Liz Truss was all about changing direction and making mostly Laffer Curve assumptions on corporation tax rates, which again are unknowable. Keynesians say Laffer Curve theory is rubbish, because they have a natural envy of tax cuts on high earners. It is political. Laffer Curve proponents (such as Patrick Minford) argue that it will work, because it worked under Reagan and Thatcher. But that was because corporation tax rates were coming down from an egregiously, evil, glutenous, and envious 1970s high level set by Wilson, Heath and Callaghan - it stimulated inward investment and creates a broader tax base.
Truss’s idea would have likely failed, but not because of Keynesians were right, and not because Minford’ is wrong. Empirical analysis (free of doctrine/ideology) shows that The Laffer Curve does work, but only at a certain point in the cycle (recession or post-recession) and only when pulling it down from much higher corporation tax rate bounds. That has been statistically proven, althought the IFS and BBC still preach the same outdated guff. At the time, as it now, it would not work because the tax rates are already low, and Ireland is already a tax competitor. The marginal gains would be questionable