Estimating Trade Misinvoicing from Bilateral Trade Statistics: The Devil is in the Details

Trade misinvoicing, an important channel of illicit financial flows, is frequently estimated by the partner-country trade data comparison method. However, this method relies on a critical but incorrect assumption that the trade statistics in partner countries exhibit no misinvoicing. This study proves that the assumption of no misinvoicing in partner countries cannot be supported, raising serious doubts about the reliability of the method and a possibility that inappropriate policy decisions may be made based on the erroneous estimates of trade misinvoicing. We introduce an alternative method to estimate trade misinvoicing which does not rely on the trade statistics of partner countries.     

Tariff evasion in global trade data

ABSTRACT

We find evidence of pervasive tariff evasion in the global data on trade from 1988 to 2015. Using over 35 million observations of data on import and export flows at the HS6 product category level, we find evidence of substantial underreporting of imports relative to export data on average and particularly when tariffs on product categories are high. These effects are stronger in more corrupt destination countries, as measured by the World Bank's Worldwide Governance Indicators [World Bank. 2016. Worldwide Governance Indicators. September 25, 2016]. In addition, evidence of tariff evasion increases significantly in economic downturns. We document these patterns in the global data and explore the welfare effects of this evasion by (1) putting a lower bound on the extent to which there are revenue losses from tariff evasion, and by (2) estimating the effects of corruption as measured by this indicator on global trade in a simple gravity model. We estimate that in total, revenue losses from tariff evasion are currently likely to exceed 400 to 670 million USD globally per year, and find that the effects of corruption on trade flows are ambiguous overall but change from weakly positive (‘grease the wheels’) to largely negative over the years in our sample.     

Estimating Trade Mis-invoicing from China： 2000-2005

An examination of available data reveals large trade misinvoicing between China and its trade partners. The analysis finds a net trade misinvoicing of US$287.6bn between 2000 and 2005, while the full magnitude of unrecorded trade is estimated at US$1.4tn. China needs to establish more effective management of its international trade flows. At the same time, the international community needs to provide more effective governance mechanisms to address trade misinvoicing.     

The Use of Prior Information in Very Robust Regression for Fraud Detection

Misinvoicing is a major tool in fraud including money laundering. We develop a method of detecting the patterns of outliers that indicate systematic mis‐pricing. As the data only become available year by year, we develop a combination of very robust regression and the use of ‘cleaned’ prior information from earlier years, which leads to early and sharp indication of potentially fraudulent activity that can be passed to legal agencies to institute prosecution. As an example, we use yearly imports of a specific seafood into the European Union. This is only one of over one million annual data sets, each of which can currently potentially contain 336 observations. We provide a solution to the resulting big data problem, which requires analysis with the minimum of human intervention.     

Trade Flows Versus Capital Flows: Are China’s Trade Surpluses Overestimated?

China has received massive foreign capital inflows after experiencing capital flight earlier in the last decade. The present paper offers estimates of capital inflows into China through the misinvoicing of trade after having outlined a model describing how trade prices could be manipulated by firms. In fact, the widely perceived undervalued Yuan has fueled expectations of a future revaluation of the Chinese currency. In a panel gravity modeling framework, we show that, China’s export and import prices for some commodities are sensitive to the non-deliverable forward exchange rate for the RMB in Hong Kong. In light of the evolution of this rate, which has rather systemically reflected anticipated revaluation of the Chinese currency, it is contended that the persistent Chinese trade imbalances may actually camouflage hidden ‘hot money’ inflows. Our findings provide evidence for export over-invoicing and import under-invoicing.     

“Post‐Truth,” “Alternative Facts” and “Fakenomics”

South African companies are accused of hoarding profits to accumulate large amounts of “idle” cash, as well as of being the perpetrators of massive illegal capital flight. This paper argues that much of the claimed corporate cash is either offshore or belongs to banks. It reminds that bank deposits increase when companies borrow, not when they retain profits. It shows, too, that measures of massive capital flight actually reflect data errors. Exaggerating, through faulty methodology the extent to which companies have cash or may be involved in illegal capital flight is unhelpful. It exacerbates already‐fraught government‐business relations, and complicates the search for solutions to South Africa's economic problems.