Figure 5: Geographical distribution of included papers
Source : authors
The stratification also shows a marked predominance of publications
originating from developed countries. Regarding the classifications of
countries based on their level of development created by the
International Monetary Fund (IMF) (Nielsen, 2011), there are no
publications from underdeveloped countries and only two papers come from
developing countries (Brazil and India).
Stage 2.4: synthesizing
data
\label{stage-2.4-synthesizing-data}
Stage 2.4 is responsible for the synthesis of data. Therefore, Table 2
presents all types of identified vehicles that are being used as
alternatives to trucks in the last mile distribution, as well as the
barriers, opportunities and benefits (economic, environmental and
social) related to their use.
Table 2: Synthesis of the systematic literature review results.