Advisor to the Prime Minister on Finance Shaukat Tarin has said economically the country has suffered a great deal due to war on terror. Talking to a foreign news agency on Monday, Tarin said the government would seek the support of International Monetary Fund (IMF) to strengthen its economy. He said the IMF's support would be sought in securing a loan of $4.5b since the country was facing economic challenges. Tarin said after getting new tranche of loan from IMF, total amount of country's loan would exceed 12 billion dollars. He said the government was taking steps to boost investors confidence and attract more investment. APP adds: He said the country's economy has persistently been showing positive signs, despite global recessionary trends. Talking to a private TV channel, he said due to the prudent policies, the country's economy would improve further within a next five to six months. Extraneous efforts are underway to decrease inflation that will ensure a definite decrease in prices, he said. He said international recession would not affect Pakistan economy, growth rate and it is expected to remain at 3.5 per cent next year also. He said reforms would be introduced in tax system besides simplifying tax collection process. He said tax base would be further expanded and tax collecting network would be made more efficient. He said some time is needed to implement all these reforms. Tax to GDP ratio would also be enhanced from 10 to 15 per cent (of the GDP) within a period of next five to seven years, he added. Responding to a query, he said Pakistan has been enduring multiple losses due to war on terror.