Free trade was finally introduced by Sir Robert Peel in his “controversial” 1845 budget act, influenced greatly by the Manchester School, a group of northern industrialist who came to believe that tariffs were stifling British industry. Their judgement was by no means wrong, as import duties on raw material made them more expensive less foreign countries were willing to trade than they would be otherwise. This was also keeping production costs too high the British businesses and reducing their sales, hence corrupting the economy. In Peel’s budget of 1842 and 1843, Peel demolished large number of the remaining duties, so that after 1845, duties on over 600 articles had been removed completely. By 1853, the attack on tariffs had initiated yet again. Gladstone’s 1853 budget abolished nearly all remaining duties on partially manufactured goods, food and nearly all remaining duties on fully manufactured goods, effecting over 350 separate articles. The 1860 budget continued this trend; only 48 import duties on articles left once duties were abolished on a further 375 articles. This was restricted down further in 1864 when Gladstone reduced the duty on sugar and halved the duty on tea. This provided a great stimulus to the British economy and industry. The 1860 Cobden Treaty alone produced a three-fold increase in trade with France by 1880.
Nevertheless, with the benefit of hindsight, you can clearly see that there were other causes for such a period of success in both industry and agriculture.
Firstly, Britain was still enjoying the advantage of being the first nation to industrialize and competition from abroad was limited. The US were having tremendous difficulty in supplying their own rapid increase of population and was held back by the Civil War of 1861-5; Germany did not become unified until 1871 so both of these countries were interdependent on British manufacturing exports. Secondly, the population growth increased the demand for such manufactured products domestically. Britain saw population increase from 27.4 million in 1851 to 31.5 million in 1871, which acted as a stimulus to industry.
One major factor which contributed to the boom was the spread of railways. The decade saw immense investments in railway building. In 1843 there was only 2000 miles of track, but this soon resulted in the construction of a further 5000 miles of track by 1850, and in 1873 a total of 14,510 miles of track was opened. The industry employed large amounts of labour which were spending their wages on item such as clothing and housing which was being pumped back into the economy and helped the growth of domestic demand. In addition, the industry also encouraged technological developments in the iron and steel as vast amounts were demanded for construction. The demand for coal grew, as did the demand for service from mechanical and civil engineers. Most important of all, railways made it possible to transport manufactured goods to the ports much moor quickly.
One last factor which also contributed to the boom of British industry was the vast sums of capital available for investment. Banking and credit facilities became more reliable after the Bank Charter in 1844. Even investments abroad helped the demand of British manufactured goods, as railways and factory projects were implemented overseas; the foreigners were able to buy British goods.
Motives for the prosperity in agriculture differ slightly. James Caird, a farmer, wrote the famous pamphlet “high farming” explaining his ideas how farmers should respond to the threat of foreign competition once the Corn Laws were abolished in 1843. He believed the answer was to maintain their land more intensively, using the latest techniques and inventions to increase yield at the lowest price possible. “High farming” resulted in much higher productivity. Farmers begun to use clay piping to improve drainage, and Britain saw an increase in mix farmer, ranging from crops and wheat, to cattle, sheep and pigs. Overall profit for farmers doubled, even farm labourers were becoming slightly better off as far as wages, housing and food were concerned.
Another factor for varying fortunes in agriculture is the rapid growth in population, increasing the demand for farmers’ products, which consequently meant higher prices and profits. This was also a result from very little competition from abroad. In addition, the railway boom enabled livestock to be transported quickly and cheaply over long distances. This allowed farmers to sell into new markets. Finally, even the weather was kind to the farmers and gave mostly good summers and harvest between 1850 and 1873.
In conclusion, you can see that free trade did help the British industry, by allowing cheap raw materials to businesses meaning cheaper products for consumers. This stimulated the economy and made British businesses more efficient from foreign competitors. However, you can only assume that free trade would not be as positive on agriculture, as farmers faced much competition from cheaper products abroad, and to an extend, you could say that there were weaknesses in British Agriculture. There was still a great deal of conservatism in farming, large amounts of investments were often had a poor return, and there was still insecurity of tenure for tenant farmers.
There were other factors, arguably more important than free trade, for the varying fortunes in both British industry and agriculture. Large increase in population meant demand rose substantially, the railway boom stimulated jobs, provided more money for citizens, helped technical developments in steel and iron industry and enabled farmers to sell in new markets.
Therefore, the validity of this view is weak, as there are many more factors contributing the varying fortunes of industry and agriculture.