In a maximum of two lines each, give an explanation to the following statements:

1. The higher the elasticity of supply in the labor market, the closer would budgetary expenditure be as a proxy for the social cost of a project.
2. Whenever an input is in fixed supply, budgetary expenditure underestimates the social cost of a project.
3. Comparing proposed projects with the status quo often simplifies the prediction of projects'impacts.
4. Monetization ofprojects' impacts frequently refers to shadow pricing.
5. While comparing projects with unequal time frames, evaluation via the equivalent annual net benefit method may be simpler than via the roll-over method.
6. If a given international company want to evaluate a project that entails interaction in the markets of two different countries, benefits and costs should better be evaluated in real prices.