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Paper money, Par of exchange, Paradox of value, Payne-Aldrich tariff, Personal taxes, Picketing, Piece work, Plato, Police state, Political, money, aspects of labor, aspect of railroads, Population, agricultural and rural, and immigration, Postal savings, Power, Precious metals as money, Premium plans, Price, standard, common market, Prices, general level, changes in, rising, and international trade, and monopoly, Profit sharing, Profits from monopoly, Progressive taxes, see graduation, Promoters of monopoly, Property, private, taxes on, tax on, concept, Property tax, general, Protection, "true principle" of, Protective, tariff, policy of, tariffs, prevalence of, railroad rates, Public finance, view of trade unions, and labor legislation, inspection, ownership, Public utility commissions, Public utilities, monopolistic nature of,