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Names | Notation | Definition |
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Investment expenditure | INV | Ratio of capital expenditure to total assets. |
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Investment efficiency | ABSINV | ABSINV is the absolute value of the residual term of regression in which the newly increased investment in the current period is the dependent variable, indicating the investment efficiency. The larger the value, the greater the deviation between the actual investment and the expected investment, which means lower investment efficiency. |
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Overinvestment | EXINV | EXINV is a residual term above 0, that is, the actual investment is greater than the expected investment, indicating overinvestment. The higher the value, the more severe of overinvestment. |
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Underinvestment | UNINV | UNINV is the residual term below 0, that is, the actual investment is below the expected investment, and its absolute value is used to measure the underinvestment. The higher the value, the more severe of underinvestment. |
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The dummy variable for debt restructuring | DRD | Represents the dummy variable for debt restructuring, which is equal to 1 if an enterprise carries out debt restructuring, otherwise it is 0. |
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The dummy variable for the period of debt restructuring | TIME | Represents a dummy variable for the period of debt restructuring, with a value equal to 0 for the period before debt restructuring and 1 for the period after debt restructuring. |
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Political connection | GI | If an enterprise’s CEO or chairman is or has been a government official, provincial, or ministerial politician, or military officer, the enterprise is considered politically connected, and the dummy variable equals 1, otherwise 0. |
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Strength of political connection | MI1 | It is divided into low, middle, and high levels based on the government index. If the strength of political connection is low, the dummy variable equals 1, otherwise 0. |
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Leverage ratio | LEV | Ratio of total liabilities to total assets. |
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Cash flow | CF | Balance of cash and cash equivalents at the end of the period. |
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Tobin’s Q | Q | (Market value of equity + total liabilities)/total assets |
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Equity balance | CSTR | Logarithmic sum of squares of shareholdings of the second to tenth largest shareholders. |
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Director independence | RID | Ratio of number of independent directors to total number of directors. |
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Regulators holdings | ESH | Management shareholding ratio. |
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Board size | BOARD | Total number of directors. |
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Listing time | AGE | Listing time of the enterprise. |
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Enterprise size | SIZE | Natural logarithm of total assets. |
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