Construction workers frequently sponsor political lobbying in support of greater public spending on highways and public buildings. one reason for this is

1. restrict the supply of construction workers.
2. increase the elasticity of demand for construction workers.
3. increase the demand for construction workers.
4. increase the price of substitute inputs.

3. increase the demand for construction workers.

Explanation:

It would be in the interest of construction workers if there were many construction projects ongoing or in the pipeline. The projects creates employment opportunities for the workers. More projects will require more workers, which increases the demand for construction workers.

The purpose of lobbying for greater spending in highways and public buildings is, therefore, to create a continuous supply of work in the construction industry. The demand for workers increases when the government increases its spending on buildings and highways.

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