Final answer:
A changing economy, poor predictions of revenues and expenditures, changed leadership, and altered salience of public problems can all lead to the need for adopting or changing a budget. These factors impact financial planning and resource allocation by the government.
Step-by-step explanation:
A changing economy, poor predictions of revenues and expenditures, changed leadership, and altered salience of public problems are all situations that may require a budget to adopt or change from the budget that was originally passed. These factors can have significant impacts on the financial planning and allocation of resources by the government at various levels. For example, in a changing economy, if there is a downturn, the government may need to adjust its budget to account for reduced revenues and increased spending on programs like unemployment benefits. Similarly, poor predictions of revenues and expenditures can lead to budget shortfalls, requiring adjustments.
Changed leadership can bring different priorities and policy changes, which may necessitate changes in the budget. Additionally, the salience of public problems can shift over time, leading to changes in budget allocations to address emerging issues.