Economic goods and economic activities. Characteristics of "azienda" (going concern). Classes of going concerns: business and non-business entities. Business operations: acquisition of inputs and exchange of output, and related monetary values. Operations concerning lending capital, and related monetary values. Operations concerning equity, and related monetary values. Notion of income. Calculation of the income of the financial year under the accrual basis. Notion of capital. Calculation of the capital of a business at the end of the financial year. Classes of values within capital. Cash-flow and net-working-capital-flow from operations. Reclassification methods of the Income Statement. Operating profit. ROE. ROI and its components. Modigliani-Miller's leverage model. Legal and economic entity. Management and functional areas. Relations between the business and its environment: notion of strategy. Corporate governance and groups of entities. Characteristics of non-business private entities. Characteristics of governmental entities. Conclusion: economy, efficiency, and effectiveness of a going concern.