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. 2021 Aug 21;29:104631. doi: 10.1016/j.rinp.2021.104631

Table 8.

Criteria of the estimates in the bivariate HAR( $p, q$ ) model on joint cumulative confirmed $C C_{t}$ and cumulative deaths $C D_{t}$ cases.

Bivariate	$C C_{t}$					$C D_{t}$
$(p, q)$	( $j = 1$ )					( $j = 2$ )
	RMSE $_{s d}$	MAE $_{s d}$	R $^{2}$	AIC	BIC	RMSE $_{s d}$	MAE $_{s d}$	R $^{2}$	AIC	BIC
$(2, 2)$	0.00686	0.00367	1.00	−2293^a	−2278^a	0.00954	0.00684	1.00	−2080^a	−2034^a
$(3, 3)$	0.00654	0.00359	1.00	−2270	−2247	0.00917	0.00662^a	1.00	−2057	−2034^a
$(3, 4)$	0.00662	0.00366	1.00	−2210	−2184	0.00924	0.00675	1.00	−2004	−1978
$(4, 3)$	0.00647^a	0.00352^a	1.00	−2224	−2198	0.00911	0.00666	1.00	−2013	−1987
$(4, 4)$	0.00647^a	0.00357	1.00	−2222	−2192	0.00910^a	0.00667	1.00	−2011	−1982

^a

Denotes the best.