Table 1 Variable definitions.

From: Digital financial development and inefficient investment: a study based on the dual perspectives of resource and governance effects

Types

Name

Symbol

Definitions

Dependent variable

Inefficient investment

INVEFF

As mentioned earlier, the absolute value of the regression residuals

Overinvestment

OVER

As mentioned earlier, the absolute value of residuals >0

Underinvestment

UNDER

As mentioned earlier, the absolute value of residuals <0

Independent variable

Digital inclusive finance

DWF

Municipal-level Digital Financial Inclusion Index

Control variables

Firm size

Size

Natural logarithm of total assets at the end of the year

Financial leverage

Lev

Total liabilities divided by total assets at the end of the year

Firm performance

ROA

The ratio of net profits to the total assets

Ownership concentration

Top1

Number of shares held by the largest shareholder divided by the total number of shares of the firm

Board size

Board

The natural log of the number of directors on the board

Number of firm four committees

Comnum

The number of audits, strategy, remuneration, and nomination committees established.

State ownership

State

Take the value of one when a firm’s ultimate controlling shareholder is government and 0 otherwise.

Listing age

Age

The natural log of [listing years + 1]

Cash ratio

Cash

The ratio of cash flow generated from the firm’s operating activities to total assets

Stock returns

Ret

Annual return on firm stock considering reinvestment of cash dividends

Percentage of fixed assets

PPE

Firm fixed assets divided by total assets