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Within the construction industry, "leverage" often alludes to the concept of using a relatively small initial investment, or resources such as machinery, time, or manpower, to gain a high return. This generally references the strategic procurement and deployment of resources or borrowed capital to increase the potential return of an investment. Leverage is particularly strategic in construction management, as it allows contractors to undertake larger projects than they could otherwise afford, enhancing their potential profit. For instance, the acquisition of a construction crane may require a significant upfront investment, but allow for much more effective work on high-rise projects, enabling the contractor to command a higher price for the job. Therefore, the term "leverage" refers to optimizing resources or borrowed funds to increase efficiency, achieve greater scale and amplify profits in construction ventures.

A Change Order in construction essentially refers to a modification to the original construction contract. These can occur due to unforeseen circumstances, changes requested by the client, or any errors or omissions found in the initial contract. They can include alterations in construction methods, designs, materials, and site conditions, impacting the scheduled tasks and the project's cost. Change orders are documented formally and require official approval before being executed. This mechanism ensures transparency amongst all parties involved, preventing disputes during the project life-cycle. It's important to manage them carefully to prevent project delays and budget overruns.

Fixed costs, in the context of the construction industry, are the expenses that a contractor has to pay regardless of the level or volume of building activity. These costs, also known as overhead costs, remain constant and do not change with the fluctuations in work demand or project size. They typically include items such as rent or mortgages for office space, salaries for permanent staff, insurances, property tax, machinery depreciation, among other expenditures. The ability to manage fixed costs effectively is vital for a construction company's profitability and viability, as they represent a substantial portion of the total expenses.