Scripture Trump's manuals and talks, which can always be invalidated by a claim that they aren't ratified by the spirit.
No scripture is of private interpretation, hence published doctrine Trump's.
Not seeing anything in your link about "captialism" or "free market society."
You see price or wage controls anywhere? I guarantee you haven't read anything on the page I link to, until now:
“They had all things common.” The phrase “they had all things common” ( Acts 4:32 ; see also Acts 2:44 ; 3 Nephi 26:19 ; 4 Nephi 1:3 ) is used to characterize those who lived the law of consecration in ancient times. Some have speculated that the term common suggests a type of communalism or “Christian Communism.” This interpretation is in error. The Prophet Joseph Smith taught the true nature of having all things common: “I preached on the stand about one hour on the 2nd chapter of Acts , designing to show the folly of common stock [holding property in common]. In Nauvoo every one is steward over his own [property].” ( History of the Church, 6:37–38.)
Each stewardship is considered private property (see Reading L-4 ), and the residues and surpluses consecrated for the storehouse became the “common property of the whole church” ( D&C 82:18 ). It is referred to as the “common property” because the covenant members of the order had access to it, according to their just “wants” and “needs,” including the need to improve their stewardship (see D&C 82:17–18 ).
The word equal is frequently used in the revelations in the Doctrine and Covenants: “In . . . temporal things you shall be equal” ( D&C 70:14 ); “for if ye are not equal in earthly things ye cannot be equal in obtaining heavenly things” ( D&C 78:6 ); “appoint unto this people their portions, every man equal according to his family, according to his circumstances and his wants and needs” ( D&C 51:3 ). The Lord gave His definition of the term equal: “And you are to be equal, or in other words, you are to have equal claims on the properties, for the benefit of managing the concerns of your stewardships, every man according to his wants and his needs, inasmuch as his wants are just” ( D&C 82:17 ).
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“This procedure [of providing deeds] preserved in every man the right of private ownership and management of his property. Indeed, the fundamental principle of the system was the private ownership of property. Each man owned his portion, or inheritance, or stewardship, with an absolute title, which, at his option, he could alienate [transfer], keep and operate, or otherwise treat as his own. The Church did not own all of the property, and life under the united order was not, and never will be, a communal life, as the Prophet Joseph himself said.