The model consists of the following five equations: (1) a supply function, (2) a demand function, (3) a stock equation, (4) the SMDC function, and (5) the SMUC function.
(5) SMUC is the average duration of unfinished cases, and SMDC is the average trial time of disposed cases.
Its elasticities are around 1 (equations [a], [e], [f]), which means that a 10% increase of SMUC will increase SMDC by the same percentage.
(However, in the long run the effect is the reverse, for it will increase STKIJN and thereby SMUC, and then it has the effect of increasing SMDC.) The negative sign of SIS/IN is theoretically relevant.
Then the econometric model is simplified to the following five equations (10)u(14), and five endogenous variables: DJS, SJS, SMDC, SMUC, STK
(12) SMUC Function (Table 7, equation [f]): log(SMUC) = 1.060 log(STK/JN)
Then in equilibrium, SMDC must be 8.1 months from equation (11), and SMUC is 13.2 months from equation (13).
i (average trial time): 1.58 (=18.9/12) year (18.9 is the average months of SMUC)
It will shorten the average trial time of disposed cases (SMDC) from 13.2 to 8.1 months, and the average duration of unfinished cases (SMUC) from 18.9 to 13.2 months.
SMUC: Average Trial Time of Unfinished Cases by Simple Mean
WADC: the weighted average of trial time of disposed cases, SMDC: the simple mean of trial time of disposed cases, SMUC: the simple mean of trial time of unfinished cases, and RACJ: the ratio of the number of unfinished civil cases in district courts to the total number of judges of all courts.