Research Article

Enhancing Countries’ Fitness with Recommender Systems on the International Trade Network

Table 2

The top five recommended products by HeatS algorithms for three randomly selected countries in different tiers.

Tier Country Recommended products (top 5)

Low tierVanuatuSugars, beet and cane, raw, solid
Natural rubber latex; natural rubber and gums
Jute, other textile bast fibers, raw, processed but not spun
Ores and concentrates of uranium and thorium
Nuts edible, fresh or dried
TongaManila hemp, raw or processed but not spun
Coconut (copra) oil
Cocoa beans, raw, roasted
Waxes of animal or vegetable origin
Palm nuts and kernels
DominicaPotassium salts, natural, crude
Distilled alcoholic beverages
Surveying, navigational, compasses, etc., instruments, nonelectrical
Figs, fresh or dried
Beer made from malt

Middle tierNorwayCrustaceans and molluscs, fresh, chilled, frozen, salted
Asbestos
Radio-active chemical elements, isotopes etc.
Ships, boats and other vessels
Iron ore agglomerates
MauritiusFabrics, woven
Fish, dried, salted or in brine; smoked fish
Articles of apparel, clothing accessories of plastic or rubber
Household appliances, decorative article, etc., of base metal
Headgear and fitting thereof
KyrgyzstanMeat of sheep and goats, fresh, chilled or frozen
Iron ore and concentrates, not agglomerated
Coffee green, roasted; coffee substitutes containing coffee
Cut flowers and foliage
Railway or tramway sleepers (ties) of wood

Top tierGermanyPhotographic and cinematographic apparatus and equipment
Organo-sulfur compounds
Parts of the pumps and compressor
Orthopedic appliances, hearing aids, artificial parts of the body
Phenols and phenol-alcohols, and their derivatives
ItalyDigital central storage units, separately consigned
Children’s toys, indoor games, etc.
Optical instruments and apparatus
Fabrics of glass fiber (including narrow, pile fabrics, lace, etc.)
Printing presses
SwitzerlandElectro-medical equipment
Chemical products and preparations
Parts of steam power units
Spectacles and spectacle frames
Other chemical derivatives of cellulose; vulcanized fiber