Express the Following Expressions in Terms of Growth Rates:
(A) $y _ { t } = \bar { A } k _ { t } ^ { 1 / 3 } l _ { t } ^ { 2 / 3 }$

Essay

Express the following expressions in terms of growth rates:
(a) $y _ { t } = \bar { A } k _ { t } ^ { 1 / 3 } l _ { t } ^ { 2 / 3 }$
(b) $z _ { t } = k _ { t } ^ { \alpha } l _ { t } ^ { - \alpha }$
(c) $c _ { t } = y _ { t } ^ { 2 } w _ { t } ^ { \xi }$