growth, i.e. incentives on savings and investment, and labor growth, incentives on migration
of the qualified labor force. Different views may exist about the future trend GDP growth of
the Uruguayan economy, and the views may change over time.
Given that Uruguay is a debtor country, we estimate the relevant real interest rate on
the basis of an indicator for the real return on global assets and a representative risk spread
for Uruguay. The real global rate of return in the long run is estimated on the basis of the
average annual growth rate of JPM Global Bond and MSCI all countries indices, both in real
terms. We assume an equal weight for both indices to represent a global portfolio and its
historical average real return in the long run of it is to be considered the global real interest
rate that will prevail in the future. Our estimation indicates a global long run real interest rate
of 4.65 percent. However that is not the relevant rate for the Uruguayan public sector that
borrows at that rate plus a risk spread. To estimate the relevant Uruguayan spread we
compare the actual returns of the Uruguayan debt (actual real interest rates) with the historic
global rate of return, yielding an average spread of 1.1 percent. Thus the Uruguayan log run
real interest rate on debt was estimated at 5.75 percent.
Again, as in the case of the real growth rate, the estimate for the interest rate of the
Uruguayan debt over the long term is subject to discussions and different views. The one
presented is our best guess with the information and expertise available, but the spread of he
Uruguayan debt is endogenous and in the future will reflect the risk that markets give to its
repayment. A virtuous cycle of lower deficit, lower debt, and lower spread is possible, but
also is possible a vicious one of higher deficit, debt and spread. A repeated assessment of the
debt risk is required to estimate the future values of the spread.
Given that it is not possible to determine a single horizon and a single debt target that
would be appropriate for Uruguay we present a table considering a range of possibilities for a
given value of the discount ratio psi, which was estimated at 1.549 percent. For the time
horizon we consider a wide range from 5 to 50 years, considering as a minimum the period of
one Uruguayan government, and as a maximum the period of ten governments. To set a
target for such a long period, a very solid political consensus should be developed to back the
structural fiscal policy. For the future public wealth target we also considered a relatively
large range of options, from -50 percent of GDP similar to the existing level of public debt, to
+10 percent of GDP similar to the public sector wealth accumulated by Chile at the end of
2009, before the earthquake.