one of three dimensions of the supply chain network design; the number of tiers in the supply chain, representing the total number of levels through which goods and services must pass from the earliest to end stages of the chain
A passive activity loss for the tax year is the excess of your passive activity deductions over your passive activity gross income. What are the passive activity limitations? Your passive activity losses are limited to the amount of your passive activity income for the taxable year.
If your rental expenses exceed rental income your loss may be limited. The amount of loss you can deduct may be limited by the passive activity loss rules and the at-risk rules. See Form 8582, Passive Activity Loss Limitations, and Form 6198, At-Risk Limitations, to determine if your loss is limited.