Question
Consider an OLG economy. Every period, a constant mass (normalised to 1) of young individuals is born and live for two periods. Individuals have preferences
Consider an OLG economy. Every period, a constant mass (normalised to 1) of young
individuals is born and live for two periods. Individuals have preferences over leisure,
t
l
, when
young and consumption,
1t
c
, when old. These preferences are represented by the lifetime utility
function
1
ln (1 )ln
tt t
Uml mc
, where (0,1)m . When young, individuals have a unit of
time which they can devote to either leisure or to activities that promote the formation of human
capital. These are denoted by
t
e while human capital evolves according to
1
ttt
hAeh
( 0A ,
01). When old, individuals supply their human capital to perfectly competitive firms, who
employ a technology that is linear in effective labour in order to produce final goods, i.e.,
11tt
y h
( 0 ), and use their labour income to purchase consumption goods.
Question 1
Solve an individual's maximisation problem and find the optimal allocation of time between
leisure and learning activities. Provide intuition for your result.
Question 2
Analyse the dynamics of human capital. What are the parameter conditions necessary for the
economy to sustain a positive growth rate in the long-run?
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