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How well does the “Law of One Price” operate across countries? Interest in this question has been stimulated by the Monetary Aproach to the Balance of Payments (Frenkel and Johnson (1975)) which uses the law to determine the price of traded goods in open economies.

This paper aims to propose that a Neave-Worthington Match Test for Ordered Alternatives is a simple, non-parametric test that can be used to consider Gibrat’s law. Whether the law, that states that the proportional rate of growth is independent of absolute size, is supported by regional house price growth rates is considered. The Match Test is further used to test the applicability of beta-convergence and dual economy models to a house price context.

The Match Test relates an actual rank order with an expected one. Gibrat’s law implies house price growth rates are independent of the absolute price levels. Beta-convergence posits that growth rates are inversely related to the initial price level. With a divergent system, there is a direct relationship between size-order and growth rates. As such, the Match Test is used to test alternative models of size-growth relationship.

Rather than convergence, there is a tendency to diverge across the UK, but not in Eire. That said, the size of growth shocks is related to price level on the upswing of a price cycle, but not in the down. Assigning the high-priced regions of the two islands into core and the rest into a periphery, total matching is dominated by the capital cities’ growth. The sigma-convergence observed in British house prices is likely to be associated with slower beta-divergence, not a convergent system. The law of Gibrat is not found to apply in a regional house price context.

This work only covers two countries and nineteen regions. Gibrat’s law in regional house prices may be better examined using a multi-country analysis.

As the law of Gibrat is not found to apply in a regional house price context and core-regions appearing to dislocated, this has interesting implications for growth trend analysis and the claim of cointegration, which should be explored further. In particular, the level-growth relationship in the cyclical price upswing points to a ratcheting of differentials between high and low house price regions. The common trends in the long run may result from corrective periodic crashes. Not an ideal mechanism for policymakers.

To the best of the author’s knowledge, this paper makes a novel use of the Neave-Worthington test in the realm of regional convergence-divergence and in the first consideration of the law of Gibrat in a house price context across two countries.

This study examines whether the law of one price (LOP) or price convergence holds during the COVID-19 pandemic for essential food items in India.

The authors use the daily retail price data of 22 essential food items from 103 Indian markets for two years (2019 as pre-COVID and 2020 as COVID period). Pesaran's (2007) second-generation panel unit-root test has been used to examine the price convergence of essential food commodities across various markets of different zones in the pre-COVID and COVID periods.

The authors find a tendency toward the convergence of prices across the spatially segregated markets for essential products. But, during the COVID period, there is a weak or no convergence of prices for essential food items. Hence, the LOP does not hold during the pandemic, indicating massive price deviations for food items across Indian markets. This has severe implications for food security as enormous price increases in some markets have been evidenced during the pandemic.

The study calls for immediate policy adoption to restore the disrupted supply chain of essential food items. Along with that, the public authority should strictly prohibit black marketing and unlawful hoarding of essential food items. In addition, farmers should be provided direct cash benefits for restoring their farming activities.

This paper is first study to examine that hypothesis of LOP in the context of COVID crisis.

This work presents evidence that cross‐isted stocks (ADRs) are traded in markets that are not completely integrated, and it is the presence of high frequency arbitrage activity that forces these stock pairs to be most commonly in relative equilibrium. A Threshold Autoregressive (TAR) model tests the hypothesis that the reversion to equilibrium of the price discrepancy series is a nonlinear function that has nontrivial thresholds, and that large price discrepancies are relatively short‐lived. The TAR specification models the neutralization of arbitrage forces with thresholds that separate outer regions where large discrepancies have a strong reversion to equilibrium from a central region where transaction costs significantly mitigate this reversion.

To understand the new non-linear pricing in E-commerce. The present paper aims to put forth an idea of using tie-in agreement in the electronic commerce market in the name of trust in India. According to the Indian antitrust law, tie-in agreement is not allowed to use as compulsory in an offer to the buyer. This means that a tie-in agreement cannot be a compulsion or only an option to the buyer. This means it can be an extra option.

The paper shows that using this logic the sellers are giving two options simultaneously to the buyer: (1) a commodity with a tie-in agreement and (2) the same commodity without a tie-in agreement. Therefore, there are two price mechanisms that are present. Now it is the decision of the buyer to choose between the two. These two price mechanisms create a new variable called trust. If the buyer selects the first option, then that buyer will not be treated as a trustworthy buyer, but in the second case, the buyer would be treated as a trustworthy or the affianced buyer. Therefore, the buyer would be leaning toward the second option. The paper proves that in the second option it would be difficult to minimize the consumer expenditure. As a result, there would be a situation of non-linear pricing in the name of trust which is hidden in the offer. The present work gives both theoretical models and empirical justifications.

We find that E-wallet is often used when a consumer orders food online but offline cash payment is preferred. Therefore, the offer does matter for the consumer. Hence, the offer can be used to make a tie-in arrangement. Therefore, even if there is a tie-in arrangement in online food servicing applications, the Competition Commission of India can restrict such practices as for illegal tying, the firm has to have the monopoly power in one market and there should be compulsory tie-arrangement in another market. But it does not mean that E-wallet tie-arrangement cannot be ignored as the monopoly power in the online food servicing market can influence the market share in the E-wallet market. Tie-in arrangement is also important, as the consumer has to spend more under cashback offer conditions which reduce the long-run gain of consumers.

The paper considered trust as a new element in forming non-linear pricing. This is new to this literature.

This paper aims to make a preliminary estimate of the degree of integration in the US product market (widely acknowledged to be the most integrated among geographically large economies) as an upper bound of spatial integration that is practically achievable in markets covering fairly large territories.

The approach takes the form of an econometric model derived from the fact that local price of a tradable good should not be dependent on local demand under the law of “one price is a tool to measure market integration”. It is applied to data on the cost of a grocery basket and prices for three individual goods in 2000 across 29 US cities.

The regression results suggest that the US market is not perfectly integrated. Thus, the estimated degree of its integration can be deemed, indeed, as a feasible maximum. Applying this benchmark to the European part of Russia in 2000, its degree of market integration turns out to be comparable – by the order of magnitude – with the feasible one. The roles of a few factors that could potentially cause segmentation of the US market are estimated.

The estimated degree of US market integration is crude because of the relatively small spatial sample. Further research has to substantially widen the spatial sample and estimate integration of the US market across a number of points in time.

The paper suggests a realistic benchmark standard for judging the extent of market integration in various (geographically large) economies.

This paper documents a strong violation of the law of one price surrounding a large rights issue.

If prices are right, the relation between the prices of shares and rights follows the outcome of a simple calculation.

In the case of Royal Imtech N.V. in 2014, prices deviated sharply and persistently from the theoretical prediction. Throughout the term of the rights, investors were buying shares at prices that were many times what they should have been given the price of the rights. Short-selling constraints in the form of high recall risk and lacking stock lending supply are the most likely explanation for the failure of arbitrage as a safeguard of market efficiency. Still, it remains remarkable that investors were buying large volumes of shares at highly inflated prices in the presence of a cheap, perfect substitute.

The mispricing was special not just because of its severity but also because unlike previously documented cases there was no fundamental risk and no material noise trader risk.

This paper aims to study the dynamics of bitcoin prices in Brazil, a large emerging economy with an unregulated bitcoin market.

First, this study tests if the Law of One Price (LOOP) is valid for bitcoin prices in Brazil, conducting tests with data from three Brazilian exchanges. Next, this study documents bitcoin price dynamics in the short run by studying the price discovery mechanism in these exchanges. This study uses Information Share and Component Share, combining the two measures to obtain an Information Leadership Share (ILS) measure.

This study finds a common trend within bitcoin prices among a set of exchanges, with cointegration tests between the price series indicating that LOOP is valid in Brazilian markets in the long run. ILS indicated that, for closing prices, the most liquid exchange (Foxbit) leads discovery, whereas the least liquid (Local Bitcoin) lags, with Mercado Bitcoin in the middle both in terms of discovery and liquidity. Finally, this study provides evidence that the price variation in the market that leads price discovery can be used to construct an arbitrage in another exchange.

This research brings the first evidence of a price discovery mechanism for exchanges in Brazilian Reais. Although LOOP is valid in the long run, price leadership in bitcoin markets potentially create arbitrage opportunities in the short run. This study contributes to the growing literature of bitcoin prices with novel evidence from a large emerging economy.

This paper examines and dissects eight popular conjectures about exchange rates. The conjectures are: there exists a systematic linkage between economic fundamentals and exchange rates; flexible exchange rates are unstable due to destabilising speculation; flexible exchange rates are excessively volatile; the foreign exchange market is efficient; purchasing power parity holds; volatile exchange rates are harmful to trade; depreciating exchange rates trigger a “vicious” inflationary circle; and countries with current account deficits have depreciating exchange rates. The main message is that there is weak theoretical and empirical support for the majority of the conjectures. Only one proposition, relative PPP has strong empirical support but its policy relevance is weakened by the difficulty of interpreting departures from PPP. The remaining group for which there is inconclusive support presents the greatest challenge to research and policy as it includes the first conjecture.

In November 1999, the Japanese Fair Trade Commission took legal action against participants in bids for oil delivery work ordered by the Self-Defense Forces. Then, in September 2000, the Korean Fair Trade Commission took legal action against participants in bids for oil delivery work ordered by the Korean Ministry of National Defense. These actions were not related, though there are similarities between the cases, each of which involves oil delivery companies obtaining special procurement privileges through deals with national security authorities. Study of these cases led to speculation as why the industry is conductive to collusion. According to the study three important results were recognized: Several measures in the plan for Japanese and Korean procurement reform were then analyzed. The implementation can clarify issues that are important for eradicating the participantsyʼ incentives for collusion.