Uncertain Productivity Growth
2 THEORETICAL FRAMEWORK
2 Theoretical Framework
Several assumptions are introduced in order to elaborate essential effects of uncertain productivity
growth on the choice of the optimal market entry mode.1
Consider a risk neutral investor who can serve a new foreign market with a specific product brand
Xi either through exports, produced in the home country or through a new foreign affiliate plant
(horizontal FDI), located in the destination country. These two market entry modes represent
investment strategies which are substituting channels to sell Xi on the new market. The final
decision on how to enter the foreign market is based on the comparison of the export investment
value VE with the alternative FDI strategy value VF . The investment horizon is assumed to be
infinite and market entry can be postponed without any negative effects on revenues.
2.1 Demand Side
The destination country’s utility function is assumed to be given by
Ut(Qt,Yt) =QtγYt1-γ (1)
with Qt = X Xiρt , 0 < ρ < 1, 0 < γ < 1,
i=1
where Qt represents a differentiated product with nt varieties. Xit is the consumed amount of
brand i only produced by the considered investor. ρ represents the degree of substitution between
any two brands of Qt . Yt is a homogeneous composite good, freely traded and therefore, used as
numeraire good with a normalized fixed world market price, equal to unity. The foreign household
maximizes utility subject to the budget constraint
nt
Xitpit+Yt 5ξt (2)
i=1
where ξt represents the foreign country’s total expenditure and pit the price of variety i in t. The
1 The term uncertainty will be used in an interchangeable manner with the term risk. In a concise way, risk refers
to a known probability distribution whereas uncertainty is referring to events in which the numerical probabilities
cannot be specified. In this paper I do not follow this distinction.
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