"I have two simple messages to speculators: Turkey to maintain sound macroeconomic policies," Mehmet Simsek tweeted late Tuesday, adding: "Capital controls are out of the question."
A country can use capital controls to order its banks to impose strict limits on daily withdrawals and foreign country transfers of cash.
"[Turkey’s] banking sector is well capitalized and has strong asset quality," Simsek also tweeted.
The country's top economic officials have been trying to reassure investors that Friday’s failed coup will not cause permanent damage to the economy.
Turkey's Central Bank acted on Sunday by cutting commission on daily liquidity options for banks to zero and provided unlimited liquidity to maintain financial markets following the coup bid.
It also said it would increase the daily foreign exchange auction limit from $50 million if necessary.
“Our country’s macroeconomic fundamentals remain solid. We are taking all the necessary measures.” Simsek said on Sunday.
Economy Minister Nihat Zeybekci also tweeted that the economic foundations of the country were “solid”.
“Despite all undemocratic attempts, our economy will continue to function flawlessly,” he added.
Timothy Ash, a London-based strategist at Nomura International, told Anadolu Agency on Wednesday that economic growth in Turkey will possibly be affected by the failed coup.
But Ash said that Turkish growth has been remarkably resilient so far, a reflection of underlying strengths such as a sound banking system, strong public finances and demographics.
GDP increased by 4.8 percent in the first quarter of 2016 compared to the same period last year, making Turkey one of the fastest growing economies in Europe and among OECD members.
Ash said that global investors are nervous: "I think the rating, and application of the rule of law is important for these investors," he said.
"These investors want to see domestic political tensions and security risks moderate. It is also important that the central bank and the finance ministry show prudence in terms of policy.
"I think it would be good to see a recommitment to Simsek's structural reform agenda with some specific long-awaited reform laws on investment and the economy rolled out," Ash added.
Andy Birch, senior economist at IHS Global Insight, said the medium- and long-term economic outlooks have not been significantly impacted but in the short-term, economic growth will suffer.
"Investment activity in the third quarter will likely be weaker than it would have been otherwise, as potential investors wait until the fallout of the actions – market instability, shifting government policies – are clearer," Birch told Anadolu Agency.
"While we do not anticipate there will be a complete evaporation of foreign investors into the country, gross inflows will drop significantly in July and August. Top officials have been aggressively attempting to calm investor worries, but until the course of government policy is better known, investment will shift away from the country."
National Security Council meeting
Shares in Borsa Istanbul, the country's main stock exchange, were down by 7.1 percent, led by the banking sector on Monday following Friday's coup attempt.
However, on Tuesday it down only one percent, with a 6.4 billion Turkish lira trading volume ($2.1 billion). The downturn was again led by the banking sector index, which fell two percent.
Borsa Istanbul's BIST-100 index was up 0.42 percent at the opening of the daily session on Wednesday. The benchmark index increased 323.16 points to open at 76,500.98.
The Turkish lira weakened by 1.82 to a dollar rate of 3.01 from the previous session’s close of 2.96. On Wednesday morning, it was trading around 3.02 to the dollar after rating agency Moody’s revelations that the country's investment grade rating was under review.
In the coup’s aftermath, President Recep Tayyip Erdogan confirmed on Monday the government would convene a National Security Council meeting on Wednesday and would announce an important decision afterwards.