Restatement of the I-O Coefficient Stability Problem

Journal of Economic Structures

The Official Journal of the Pan-Pacific Association of Input-Output Studies (PAPAIOS)

Table 5 ADF and PP tests for ${sca}_{i}$

Variable	Exogenous	ADF		PP
Variable	Exogenous	t-statistic	Prob.	t-statistic	Prob.
${sca}_{1}$	Constant, linear trend	−4.54901	0.009	−4.52912	0.0094
${sca}_{2}$	Constant	−2.02573	0.274	−2.00889	0.2809
${sca}_{3}$	Constant	−3.98533	0.0073	−2.00269	0.2833
${sca}_{4}$	Constant, linear trend	−4.79669	0.0072	−2.85646	0.1956
${sca}_{5}$	Constant, linear trend	−6.12916	0.0005	−3.86767	0.0339
${sca}_{6}$	Constant, linear trend	−5.45292	0.0026	−3.4261	0.0761
${sca}_{7}$	Constant	−4.76606	0.0018	−2.99545	0.0525
${sca}_{8}$	Constant	−5.00001	0.0008	−7.99152	0
${sca}_{9}$	Constant	−4.47988	0.0028	−2.81411	0.0741
${sca}_{10}$	Constant, linear trend	−4.43914	0.012	−7.71446	0