| Factor | No | Variable | Var | Frequency | Source | Notes | |||||
| Construction insolvency | 01 | Company insolvency | C | Quarterly | Department of Trade and Industry | ||||||
| Profitability | 02 | Return on capital invested | P | Annually | Derived from UK National Accounts | ||||||
| Cash flow problems | 03 | Working capital requirements | W | Annually | UK National Accounts | ||||||
| Cash flow problems | 04 | Bank borrowing by UK construction | F | Quarterly | Financial Statistics | ||||||
| Domino theory | 05 | Overall insolvency statistics | Lt-4 | Quarterly | Department of Trade and Industry | Lagged four quarters | |||||
| Credit availability | 06 | Velocity of circulation of money | V | Quarterly | Financial Statistics | Relevant prior to 1980 | |||||
| Cost of credit | 07 | Interest rate | R | Periodic changes | Economic Trends | Relevant from 1980 | |||||
| Fluctuating demand | 08 | Change in construction output | DQ | Quarterly | Housing and Construction Statistics | ||||||
Table No 3: Variables used in statistical tests