_________ एक फर्म द्वारा उपयोग किए जाने वाले दीर्घकालिक पूंजी के विभिन्न स्रोतों का एक संयोजन है।

Which of the following statements regarding capital structure are correct? 1. Capital structure refers to the combination of debt and equity used by a firm. 2. Higher debt leverage increases the financial risk of a company. 3. Capital structure never affects firm value under any real-world economic condition.

Identify the validity of the following statement: 'Managers cannot precisely estimate the optimal capital structure, but they often establish a target capital structure. An issuer's actual capital structure may temporarily differ from its target based on business and financial market conditions.'