Final answer:
The decrease in accounts receivable has a positive effect on cash flow by improving the company's liquidity and overall cash flow.
Step-by-step explanation:
The decrease in accounts receivable has a positive effect on cash flow as it represents a decrease in the amount of money owed to the company by its customers. When accounts receivable decreases, it means that the company has received cash for goods or services that were initially sold on credit. This increase in cash inflow improves the company's liquidity and overall cash flow.