Consider the Solow growth model with government spending but without technological progress. Output \( Y \) is produced according to the production function \[ Y=F(K, N)=\sqrt{K N} \] where \( K \) is the capital stock that depreciates at the rate \( \delta \). Employment \( N \) is equal to one half of the total population \( L \) and grows at the rate \( n \). The government levies a lump-sum tax \( \tau>0 \) on each worker and collects \( T \equiv \tau N \) of the total fiscal revenues. Capital accumulation is financed solely from private saving, since the government spends all the tax revenues on public consumption and balances its budget, so \( T=G \). Private investment \( l \) and private consumption \( C \) absorb, correspondingly, constant fractions \( s \) and ( \( 1-s \) ) of disposable income. (a) [10 marks] What is the share of capital income in total income? (b) [10 marks] Derive analytically the balanced growth path conditions for capital, \( K \), and output per capita, \( y \). (c) [10 marks] Find the closed form algebraic solutions for all steady-state levels of capital per worker, \( k \). (d) [10 marks] Illustrate the steady-states graphically using the Solow diagram.
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