What happens when government increases expenditure but keeps the tax rate constant?

When the government increases expenditure while keeping the tax rate constant, it typically leads to a higher budget deficit if the additional spending is not matched by an increase in revenue. This can result in increased borrowing or higher national debt. In the short term, such spending may stimulate economic growth, but if sustained without adjustments, it could lead to inflationary pressures and concerns about fiscal sustainability. Ultimately, the long-term effects depend on how the increased expenditure is allocated and its impact on economic productivity.