But, if forecasts are biased, fiscal rules will not constrain budget deficits.&#160;In any given year, governments can forecast that their growth rates, tax revenues, and budget balances will improve in subsequent years, and then argue the following year that the shortfalls were unexpected.
但由于预测有失偏颇，财政规定就不会对预算赤字进行限制。在任何一年，政府都会预测本国增长率、税收收入及预算平衡将在未来几年有所上升，而在接下来的一年又会为自己辩护说那些不符合预期的差额是意外因素导致的。