Simple categories matching marketable:

• commodity,
• voucher,
• material,
• security,
• instrument,
• obligation,
• skill,
• legume,
• property,
• resource,
• metal,
• product,
• component,
• assets,
• package,
• output,
• byproduct,
• training,
• capital,

Members with property marketable:

• sausage_casing,
• scarf,
• municipal_bond,
• bond,
• fruit,
• timber,
• condensate,
• product,
• stenography,
• physical_security,
• construction_technique,
• cement,
• accounting,
• equity,
• note,
• oil,
• forest_product,
• charcoal,
• toy,
• landscaping_mulch,
• copper,
• clothing,
• mortgage,
• certificate,
• printing_skill,
• crop,
• oil_reserves,
• money-market_funds,
• shelter,
• share,
• silver,
• loan,
• food_crop,
• financial_literacy,
• clean_stone,
• debenture,
• cash,
• natural_sand,
• independent_study,
• security,
• vacant_land,
• municipal_security,
• real_estate,
• canadian_bond,
• fill_material,
• communication_skill,
• fuel_wood,
• real_property,
• treasury,
• natural_gas,
• electrolytic_iron,
• raw_memory,
• work_ethic,
• corporate_bond,
• gold,
• sba_loan,
• enterprise_bond,
• creativity,
• private_equity,
• wool,
• property,
• diamond,
• gem,
• investment,
• stock,
• student_loan,
• leadership,
• timber_reserves,
• durian_fruit,
• black_cowpea,
• lint,
• road_stone,
• hairdressing,
• water,
• car,
• steel,
• coppice_product,
• science,
• wood_product,
• web_design,
• crumb_rubber,
• straight_bond,
• residential_mortgage,
• reading_spectacles,
• common_stock,
• language,
• instructional_design,
• bullion,
• warrant,
• interpersonal_skill,
• ability,
• analytical_study,
• shell,
• investment_security,
• land,
• wood_carving,
• mutual_funds,
• computer_literacy,
• book,
• deposit,
• fiber,