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 6 ADF and PP tests for ${sra}_{i}$

Variable	Exogenous	ADF		PP
Variable	Exogenous	t-statistic	Prob.	t-statistic	Prob.
${sra}_{1}$	Constant, linear trend	−3.06826	0.1399	−1.59124	0.1031
${sra}_{2}$	Constant	−2.94275	0.0581	−2.91376	0.0614
${sra}_{3}$	Constant	−3.51945	0.0183	−3.51945	0.0183
${sra}_{4}$	Constant	−2.6057	0.1083	−2.6057	0.1083
${sra}_{5}$	Constant, linear trend	−2.28894	0.4194	−2.54869	0.3041
${sra}_{6}$	None	−2.36343	0.0209	−2.17192	0.0319
${sra}_{7}$	Constant, linear trend	−4.96559	0.0044	−2.84798	0.1981
${sra}_{8}$	Constant, linear trend	−2.34672	0.3929	−1.90162	0.6163
${sra}_{9}$	Constant	−2.91805	0.0609	−2.91805	0.0609
${sra}_{10}$	Constant	−1.22677	0.6415	−1.28041	0.6175