Dependent variables Dependent variables include budgetary variables, meaning deficits and
debts, and nominal or cyclically adjusted data.
The debt ratio, either gross (without effect of the inflation) or net, is used as a wider measure of government actions rather than measure of government deficit. Nevertheless, government generally set their yearly budget aims in flow terms (deficits) rather than in stock terms (debts). This is partly because
stock markets variables are harder to target as circumstances outside direct government control (e.g. economic growth, exchange rate changes and asset price changes) affect stock variables more than flow variables. Concerning the
nominal or
cyclically adjusted data, the latter is preferable measure of the policy-related part of the budget and reduces the mutual partiality that may originate from the interaction between economic growth and budgets. However, there are serious warnings in estimating
cyclically adjusted balances, especially defining trend/potential output.
Welfare level has quite straightforward effect on budget balance, if it is supposed that low
welfare states have higher budget deficits due to need to finance catching-up expenditures. However,
Greece and
Japan are considered as developed countries, but their debt is one of the highest in the world and any significant increase of
interest rates would lead to huge financial problems, therefore this assumption is quite problematic.
Political variables The economic institutions, among them those, which apply fiscal policy, are directly influenced by
de jure (under the law) political power. Form of the state budget can be influenced by political instability (higher frequency of elections), political orientation of those possessing political power or by the way of doing budgetary process (degree of cooperation between authorities), which is examined in a field called
political economy.
Election year has significant effect on budget balance, because before and after the elections, there is a tendency called
political business cycle, referring to the fact that politicians tend to spend more money before and after the elections to please the voters. Due to it, there is a negative correlation between political stability and budget balance meaning the less political stability, the less balanced budget.
Government composition index refers to the political ideology of the government. It is generally supposed that
left-wing parties are more-expenditure and deficit-prone than the
right-wing parties. On the other hand, left-wing parties tend to set more "socially just"
progressive tax rates, which in most cases increase tax revenues, therefore budget deficit is not that much higher than during the government of right-wing parties.
Type of government means if the government is single party or a
coalition. A single party government does not have to deal with ideology disagreements like the coalition type of government. It is considered to be more active in enforcing new laws or measures and has more balanced budgets.
Fiscal governance is variable, that measures if the major budgetary powers have been allocated to the Minister of Finance ("delegation"), if the role of the Minister of Finance is to enforce pre-existing deal between other ministers ("commitment"), if spending decisions are made without discussion with other ministers ("fiefdom") or if it is a combination of delegation and commitment (typology based on ).
Dummy variables Dummy variables are variables used mainly in Econometrics and Statistics to categorize data can only take one of two values (mostly 0 or 1). Here, it refers to events unique only for some parts of the world.
Run-up to EMU refers to the consolidation measures about the fiscal policy in European countries to qualify to the
European monetary union (EMU), which were supposed to control government overspending. However, these criteria concerning maximum debt-to-GDP ratio and budget deficit are not evident to have some changing effect on budgets and debts of member states.
Country-specific and year dummies relate to unusual economic events, which have significant effect on state budget balance, country-specific dummies for example to the German unification in 1990 and year dummies to macroeconomic shocks not fully reflected in the variables, like
oil shocks in 1970s or
11 September terrorist attacks. ==Potential policy solutions for unintended deficits==