Final answer:
The statement is false because it is difficult to precisely gauge and plan for segments based on cultural or lifestyle indicators in the global market, as these factors are complex and vary greatly across different regions.
Step-by-step explanation:
To determine whether the size of segments in the international environment based on cultural or lifestyle indicators are typically easy to gauge and to factor into overall planning is false.
Factors like cultural differences, consumer spending, and urbanization can influence the measure and planning of segments. For instance, cultural differences can create perceptual variances that make it challenging to accurately assess segments.
Additionally, the rate of urbanization and consumer spending patterns differ widely from region to region, and these indicators often correlate with a country's stage in the development index. By considering tools such as Rostow's Demographic Transition Model (DTM) and the Human Development Index (HDI), one can gain insights into patterns of population growth and economic development.
However, this information may not always be easily translated into precise market segment sizes due to the complexity and variability of cultural factors.