Having a Model That Controls for Fixed Effects Even When $\alpha$

question 13

True/False

Having a model that controls for fixed effects even when the fixed effects are 0 ( $\alpha$ _i=0 for all units) will not cause bias.
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Definitions:

Highway Train Combinations

Configurations of vehicles coupled together, often including a tractor unit and one or more trailers, used for transporting goods on highways.

Maximum Height

The tallest permissible or achievable height for a structure, vehicle, or component, often regulated for safety or operational reasons.

Highway Truck

A type of truck designed for long-distance transport, featuring characteristics suited for travel on highways such as higher speed capabilities and increased comfort features.

Trailer Flooring

The material or construction used on the floor of a trailer to offer durability, support, and resistance to elements and heavy loads.