| Review of competition: mobile access and call origination - 11 April 2003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Contents
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|
% shares |
Vodafone |
O2 |
T -Mobile |
Orange |
|
Subscriber numbers |
24.5 |
23.9 |
24.9 |
26.7 |
|
Volume of retail call minutes |
29.7 |
20.6 |
21.9 |
27.7 |
|
Retail revenues |
33.1 |
21.9 |
18.7 |
26.3 |
Source: Oftel Market Information, published April 2003
3.33 The revenue figures given in table 3.1 include SMS revenues. The impact of excluding SMS revenues would be minimal, the main effect being to transfer one per cent of revenue share from T-Mobile and O2 combined, to Vodafone and Orange combined.
Market share trends
3.34 It is important also to look at the trends in market shares. For subscriber numbers, Figure 3.2 below shows the shares over time.
Figure 3.2 Trends in shares of mobile subscribers

Source: Oftel Market Information
3.35 Traffic volume shares (see Annex E, Figure E.1) have become broadly reflective of subscriber shares, although Vodafone and Orange generate a higher call volume per subscriber. over time.
3.36 Figure 3.3 shows how revenue shares have changed. These revenue figures illustrate considerable change in the market:
3.37 Differences in subscriber and traffic profiles lead to unequal shares in retail revenue. Oftel estimates that each post-paid subscriber generates on average about five times more revenue than each pre-pay customer. In general business subscribers will use post-paid packages: Oftel's November 2002 surveys showed that 79 per cent of business mobile customers used post-pay, whereas 72 per cent of residential customers used prepay. The relative volume of premium services, such as international calls and international roaming (mobile use abroad) is also important.
Figure 3.3 Trends in shares of mobile retail revenue

Source: Oftel Market Information
3.38 The following information helps in interpreting the revenue market shares:
Concentration
3.39 Concentration measures combine the market shares of some or all of the firms in a market into a single measure. They can reflect both the absolute size of the shares of the leading firms and how unequally the market shares are distributed between them. Table 3.2 below compares the UK mobile market with the five other largest Western European markets, in terms of the Herfindahl-Hirschman Index (HHI) measure of concentration.
Table 3.2 Mobile market concentration in Western Europe, February 2003
|
|
UK |
Germany |
Italy |
France |
Spain |
Netherlands |
|
Number of networks |
4 |
4 |
3 |
3 |
3 |
5 |
|
HHI score |
2500 |
3400 |
3700 |
3900 |
4100 |
2800 |
Source: Mobile Communications, 4 March 2003. Italy has three mobile network operators as Wind is absorbing Blu's subscribers.
3.40 The HHI measures the sum of the squares of each network's market share - in this case in terms of subscriber figures (as this enables comparison with abroad). The HHI increases as both the number of firms diminishes and as market shares become more divergent. A monopoly would result in a value of the HHI of 10,000. A low value of the HHI would be consistent with an effectively competitive market.
3.41 The US Department of Justice and Federal Trade Commission Horizontal Merger Guidelines contain explicit thresholds defined in terms of the HHI. While it should be emphasised that these thresholds are for use in merger appraisal and not strictly evaluations of dominance, they provide a general indication of degrees of concentration beyond which competition is not likely to be effective.
3.42 A market with an HHI less than 1000 is considered ‘unconcentrated’, a market with an HHI between 1000 and 1800 is considered moderately concentrated and a market with an HHI greater than 1800 is regarded as ‘highly concentrated’. All the markets in the above table would therefore be regarded as highly concentrated for the purposes of the US Guidelines. This means that a merger would be subject to detailed scrutiny for possible adverse effects on competition, but it does not mean that the market is characterised by single or collective dominance. The UK is clearly the least concentrated market of those listed. Also, the figures above do not consider the existence of service providers or the new entrant, '3', although their inclusion would not currently bring the UK HHI below 1800.
Conclusion
3.43 The Director's initial conclusion is that the analysis of market share statistics does not provide strong support for a finding of collective dominance, because none of the measures of market shares have remained static. Both Vodafone’s and O2's revenue market shares have been steadily eroding over time, whilst those of T-Mobile and Orange have increased. Vodafone's and O2's lead on revenue and subscribers have fallen, such that Orange has overtaken Vodafone on subscriber numbers and O2 on both measures. This pattern of change in market shares is not indicative of collective dominance between two, three or four players.
3.44 It is also worth noting that although market concentration in subscriber terms would be regarded as high by most competition authorities, it has fallen over time and is likely to fall further with the entry of '3' as the fifth mobile network operator. Concentration in the UK market is low relative to other major European mobile markets.
Market maturity
3.45 Market maturity, particularly any evidence of stagnant or moderate demand side growth, is important because in a mature market there may be less incentive to compete aggressively. This situation would tend to create more favourable conditions for the adoption of co-ordinated behaviour, as there would be less incentive for existing players to compete to attract new customers, and less scope for successful market entry.
3.46 The latest Oftel figures show that about 70 per cent of UK residential consumers own a mobile phone. Penetration growth has slowed. Penetration grew by four per cent in 2002, having grown by ten per cent in 2001 (source: Mobile Communications).
3.47 An insight into the scope for further penetration growth can be gained by considering the customer segments that offer more scope for growth. Oftel's most recent consumer survey shows how penetration declines rapidly with age among consumers over 45. Over three-quarters of under 55s in the UK have a mobile (Oftel survey, Consumers' use of mobile telephony, November 2002). This compares to penetration of 61 per cent in the 55-64 age group, and only 43 per cent in the 65-74 age group. However, penetration figures for the year to November 2002 do not suggest rapid growth among the older age groups, and certainly not sufficient growth to increase overall penetration significantly.
3.48 On the other hand, comparison with other European countries indicates that there is potential for more growth in UK penetration. For example, penetration is about five per cent higher in Finland, eight per cent higher in Norway and ten per cent higher in Italy. Whilst there are some issues of comparability between countries these figures still seem to suggest some scope for growth in the UK.
3.49 An assessment against these criteria can look at growth in usage as well as growth in the number of subscribers. Oftel's market information statistics show that in July-September 2002, call volumes were up by 17 per cent on the previous year's figures. For the same period, the volume of SMS messages was up by 37 per cent. SMS is just one example of how the mobile sector is evolving at the level of individual services. As well as the volume of SMS messages sent, the proportion of consumers using SMS is also rising strongly. Looking forward, the market definition in mobile is likely to continue to evolve, as newer services become an increasingly important basis for competition. Such services include picture messaging and GPRS services, still in relatively early stages of growth, and the 3G data services that have just been introduced.
3.50 In conclusion, in some respects the high penetration indicates that this market can be considered to be mature, certainly if voice services alone are considered. However, even in voice, international comparisons suggest that further penetration growth is possible. More importantly, the nature of the market will change over time, as newer services become more important. As long as newer services continue to be generated, offering an incentive to compete for customers, the relative maturity of voice services should not significantly constrain the level of competition.
Technological maturity and advantages
3.51 In general high technological maturity can limit the dynamism of competition as there is less ability for individual mobile network operators, including new entrants, to change the nature of competition. Stable technological conditions are likely to facilitate the development of a common policy and the detection of deviations from that policy.
3.52 This section considers the degree of technological maturity, and whether any mobile network operators have particular technological advantages. Further technological issues are considered in Annex F.
3.53 The UK mobile market mainly uses GSM, a worldwide open standard (there are others such as TETRA in the UK, and CDMA2000). The ubiquity of this technology, and the ability to source equipment from many suppliers, would seem to make the likelihood of any UK mobile network operator having a technological competitive advantage small, and transitory. The technology is also mature. The same is true for '2.5G' services such as GPRS.
3.54 Looking at newer technologies, the impact of 3G technology is uncertain as it is not mature. The impact of wireless local area networks (WLANs) is also uncertain but likely to be limited in geographic scope.
3.55 In conclusion, Oftel considers that mobile voice technology is mature and that there is no sustained technical advantage for any of the mobile network operators. This would tend to make it easier to maintain a co-ordinated position in this market. The role and impact of new technologies is however less clear. As with market maturity, the evolving nature of the services upon which mobile network operators seek to compete will tend to limit the degree to which technological similarity constrains competition. As technology evolves, it is possible for mobile network operators to succeed on the basis of a series of temporary advantages in applying new technologies rather than a specific sustained technological advantage.
Pricing and profitability
Profits
3.56 In an effectively competitive market, Oftel would expect prices to reflect efficiently incurred costs including the cost of capital. The cost of capital is the minimum return on capital employed ('ROCE') necessary to encourage investment in a business. ROCEs that persistently and significantly exceed the cost of capital could indicate that prices charged by that particular mobile network operator are higher than would be found in an effectively competitive market.
3.57 It has been argued that Oftel should not be assessing overall profits when assessing the profitability of calls and access, because the overall profit figure includes returns for services such as call termination, which is a separate economic market. Oftel does not however accept that data on profitability at the aggregate level is irrelevant to an analysis of competitive conditions in the market for call origination and access.
3.58 As explained in the last mobile market review, although call termination is a discrete market, there is likely to be an economic relationship between the two markets, which means that pricing and profitability in one market will impact on pricing and profitability in the other market. The mobile network operators have themselves argued this, in claiming that 'swings and roundabouts' link the two markets. The 'swings and roundabouts' argument implies that a significant proportion of profits made on call termination is competed away in the outgoing calls and access market. Oftel believes that only if the access and call origination market were perfectly competitive would termination profits be fully offset by reductions in access or outgoing call prices. In circumstances other than perfect competition, a wide range of outcomes is possible, with varying proportions of the profits made in one market competed away in the other.
3.59 Oftel does not consider that the mobile access and call origination market is perfectly competitive. It does however consider that there is likely to be some relationship between the level of termination charges and the level of retail charges, but not such a precise and mechanical relationship as implied by the textbook model of perfect competition. This implies that it is reasonable to consider profits for the different mobile services together in this market analysis. This is consistent with the approach that Oftel has taken in the past.
3.60 Table 3.3 below provides ROCE figures for the UK mobile networks, including the most recently available figures. These ROCE figures are 'end to end' figures, i.e. they include returns for the wholesale and retail level. This is important in the assessment of competitive conditions at the wholesale level for two reasons. Firstly, if operators are exploiting dominance or joint dominance at either retail or wholesale level this is likely to show up in retail prices which are higher than they would be in a competitive market. Indeed, if competition between operators is sufficient for retail prices and hence end-to-end profits to be at the competitive level, it is not necessary to be concerned with how any profits are divided between retail and wholesale levels. Secondly, profitability at the retail level is likely to also give an indication of the competitive conditions at the wholesale level. This is because, any market power is most likely to arise from barriers to entry at the network level. Oftel believes that the margins available to retail service providers (ie the difference between retail prices and the wholesale charges levied by network operators) are likely to be relatively low so that end-to-end profitability is likely to be a good indicator of wholesale level profitability. The reporting years of the mobile networks vary so the periods covered are not directly comparable, but the trends are clear.
Table 3.3 Return on Capital Employed of the UK mobile network operators
|
Year ending |
3-97 |
3-98 |
3-99 |
3-2000 |
3-2001 |
3-2002 |
|
Vodafone |
|
92.3% |
76.0% |
53.2% |
50.1% |
45.2% |
|
O2 |
|
20.4% |
11.9% |
8.8% |
6.7% |
7.5% |
|
Year ending |
12-97 |
12-98 |
12-99 |
12-2000 |
12-2001 |
12-2002 |
|
T-Mobile |
|
|
-22.9% |
-35.4% |
-16.8% |
|
|
Orange |
-7.1% |
4.6% |
4.6% |
9.9% |
18.7% |
|
Source: mobile network operators. Note that these figures are calculated on a Historic Cost Accounting (HCA) basis.
3.61 During the Competition Commission's inquiry into mobile call termination charges, Vodafone proposed a number of adjustments to Oftel's/Nera's method of calculating ROCE, which if applied to Vodafone's latest profits would reduce its ROCE to 29 per cent. Oftel did not accept that Vodafone had demonstrated that these were valid, but in any case, it seems clear that Vodafone's profitability would still be well above its cost of capital. The average cost of capital for mobile network operators has been calculated by the Competition Commission at 11.25 per cent in real terms.
3.62 Since the last review of the broad outgoing mobile sector, Vodafone’s ROCE has eroded marginally, and Orange's has nearly doubled. O2’s profit has marginally increased. Overall the industry is marginally more profitable than before.
3.63 Although Vodafone's profits remain high, the widely varying levels of profitability between the mobile network operators, and the significant changes in relative profitability, do not support a finding of collective dominance in present circumstances. Moreover, the Competition Commission, in the report of its inquiry into mobile call termination charges said (paragraph 2.161):
"when deciding whether persistently high profit levels are an indicator of ineffective competition, it is necessary to consider the circumstances in which such returns are earned. Vodafone's returns have been earned in a period when the mobile phone market has been expanding extremely rapidly…In the circumstances we do not conclude that Vodafone's high profit levels…demonstrate, in themselves, ineffective competition."
Pricing
3.64 This retail indicator is important, because it gives an indication of competitive conditions at the retail level. This in turn is useful in assessing the competitive conditions at the wholesale level.
3.65 Oftel's analysis of tariff changes over the last year indicates continuing innovation in retail tariffs. For example, all mobile network operators have extended the range of contract tariffs on which the bundled minutes include cross-network calls. Bundles of cross-network minutes can now also be purchased as add-ons to many contract tariffs. All mobile network operators have extended the degree to which their contract tariffs can be tailored to the needs of individual subscribers. Pre-pay tariffs have also shown innovation, with a greater range of charges according to usage patterns. The mobile network operators also offer different choices for pre-pay. For example not all tariffs have different peak and off-peak rates, and one mobile network operator currently charges the same amount to call any mobile network operator. There has also been innovation in payment terms, with the ability to buy handsets by installments. This arguably indicates that there are continuing changes in tariffs, with an increasing range of tariffs and more variation between mobile network operators.
3.66 There are two main measures of pricing available to assess the relative prices of different mobile network operators. The first is simply a top-level division of total call revenues divided by total minutes. This is provided in table 3.4 below. The analysis shows that the average pence per minute call prices are somewhat higher for Vodafone and O2 than for Orange, which has a further, smaller price advantage over T-Mobile. However, the most notable change in the last year has been a significant fall in Vodafone's relative price advantage. This tends not to support any finding of single dominance for Vodafone.
Table 3.4 Average retail prices: total revenues divided by total minutes

3.67 The second measure of prices used by Oftel is a price model developed and maintained by Oftel that calculates the optimal price available with each mobile network operator for a range of customer types. By comparing mobile network operator prices for the same usage profiles, this model adjusts for the differences in subscriber profiles between the mobile network operators, for example the significant differences in the level of corporate business.
3.68 Oftel does not publish mobile network operator-specific prices from this model, Figures 3.4 and 3.5 below show anonymous versions of the price indices, covering the period from April 2001 to December 2002.
Figure 3.4 Oftel price index for post-paid packages (including handset)

Figure 3.5 Oftel price index for prepaid packages (including handset

3.69 Oftel's in-house price modelling work shows that:
3.70 In conclusion, Oftel's information on both price measures indicates a degree of change in relative prices that does not appear to be consistent with collective dominance. Also, the change in Vodafone's relative pricing position does not indicate that it has single dominance. Given the relatively low entry barriers at the retail level, this movement of retail prices is likely to be reflective of that at the wholesale level. This further implies that wholesale prices are also not likely to be consistent with collective dominance.
3.71 Concern has been expressed about retail international roaming prices and off-net prices. Both are part of the retail cluster of services examined in this review. Prices for both may be affected by future competition and by potential regulatory action in the separate wholesale international roaming market and the voice call termination market (on each individual network).
Initial T-Mobile conclusions on pricing and profitability
3.72 The variations and changes in the networks' levels of profits, and the changes in relative prices, do not support a finding of collective dominance at the wholesale and retail levels. Overall prices are still on a downward trend, and tariff models continue to exhibit change, although costs are converging as network traffic grows. Overall, the indicators on pricing and profitability do not support a finding of collective dominance.
Low elasticity of demand
3.73 This is relevant to the analysis of collective dominance because there is less incentive on mobile network operators to reduce price to undercut competitors when customer demand does not change much in response to price changes. This in turn strengthens the case for a common strategy. The elasticity of demand is measured at the retail level, but retail consumer behavior is relevant to competitive conditions at the wholesale level, because the demand for wholesale products is a derived demand from the retail level. So if the elasticity of demand is very low at the retail level, this would be reflected in wholesale prices, which is relevant to the assessment of collective dominance at the wholesale level. Oftel has split the analysis of elasticity of demand into two aspects: customers’ ability to access and use information, and barriers to switching. These are discussed below.
Customers’ ability to access & use information
3.74 The evidence against this criterion is contradictory. On the one hand, consumer surveys suggest continuing problems in accessing and using comparative information. When asked to name the best mobile provider on a range of different aspects of mobile service (Consumers' use of mobile telephony, November 2002), between a third and two-thirds of consumers answered 'don't know'. Most of the rest named their own provider as the best on each aspect. When naming the worst provider in the same survey three-quarters or more answered 'don’t know'.
3.75 Research from the previous quarter's Oftel survey (Consumers' use of mobile telephony, August 2002) indicates that consumers think that there are differences between providers, up to 30 per cent thinking that providers differ by 'a lot' across a range of options. At least as many thought that providers differed by 'a little' on each aspect. One interpretation of these two surveys is that whilst many consumers think that there are some differences, they are not so sure who is best.
3.76 It may be that more comparative information would help. In Oftel's August 2002 survey, 44 per cent of mobile customers said that they were very or fairly likely to use comparative information on at least some of a variety of measures of network quality and customer service quality. Up to about half of these consumers also indicated that they would find more information useful on each of the measures.
3.77 One aspect of awareness that Oftel has looked at before is awareness of charges for using mobiles abroad (Consumers' use of mobile telephony, November 2002). A key feature of mobile use abroad is that users pay to receive incoming calls. However, only 28 per cent of all mobile users are aware of this, and even a quarter of those frequently using their mobiles abroad don't know that they pay for incoming calls.
3.78 However, there is other evidence that suggests that consumer awareness is not so much of an issue in practice:
3.79 Whether or not the reason for not switching arises from problems with consumer awareness, Oftel surveys do suggest that there is only likely to be a modest degree of responsiveness by consumers to changes in price, at least in the short term. This would tend to imply that price-cutting is less likely to take place, which would strengthen the potential for collective dominance. However, the changes in market share and price levels noted above suggest that consumers do respond to changes in price and other factors. The evidence on this criterion is therefore ambiguous.
Barriers to switching
3.80 Vigorous switching at the retail level increases retail competition. It will also impact positively on wholesale competition since demand for wholesale products is derived from that for retail products.
3.81 Just over a quarter of residential consumers say they have ever switched their mobile provider (Consumers' use of mobile telephony, February 2003). The level of switching has risen slightly despite falling handset subsidies since Spring 2001. About ten per cent of consumers currently switch annually (Consumers' use of mobile telephony, August 2002). About a third of switchers have switched more than once (Consumers' use of mobile telephony, February 2003).
3.82 In various Oftel surveys, most residential consumers state that they do not switch their mobile provider due to a lack of interest, a lack of need, or satisfaction with their current provider. It is possible that these results stem partly from weaknesses in consumers' perceptions of the alternative providers. Oftel has found continued weaknesses in tariff awareness among a large proportion of customers. Surveys showing that mobile providers are not seen by customers as being very different from each other, and that an average 34 per cent saving is needed in order to switch mobile provider, suggest that mobile customers would need to perceive significantly greater differences than they currently do for switching figures to be much affected.
3.83 Oftel has assessed various possible contractual/procedural barriers to switching in the past. On number portability, the process has continued to improve. Over two million ports have now been completed in the UK, and the number of ports in January 2003 was over 50 per cent higher than the figure for January 2002. Oftel has also assessed the impact of locking handsets to one mobile provider, in a review of its policy that was completed in November 2002. That review concluded that awareness of 'SIM locking' policies was low and should be improved by mobile providers, but that given the general attitudes to and extent of switching there may be only a limited impact from changing the policies themselves, certainly not without better consumer awareness as a precondition. As for the extent of the SIM locking barriers themselves, three of the four mobile network operators' policies have been relaxed since the last mobile market review ended in September 2001, and the mobile network operator whose policy has not changed already charged the lowest unlocking fee of the four mobile network operators at that time.
3.84 In conclusion, whilst some barriers to switching remain, they are being reduced over time. Survey evidence does not suggest that customer's reasons for not switching are strongly associated with the barriers. This criterion does not therefore provide strong support for any finding of collective dominance.
Absence of or low countervailing buying power
3.85 The assessment of countervailing buyer power can be divided into the power of retail customers and the power of the various intermediaries through which mobile network operators sell their services. This is relevant to the assessment of market power at the wholesale level, because, the presence of significant countervailing buyer power at the retail level has the effect of dampening market power at the wholesale level.
3.86 Dealing first with retail customers, very few are large enough to have significant buyer power. Mobile network operators have provided details to Oftel that indicate that only a limited share of the mobile network operators' revenue is accounted for by customers with more than a few hundred connections. The importance of any buying power exerted by direct retail customers of the mobile network operators is therefore likely to be limited relative to the overall customer base.
3.87 However confidential data provided by the mobile network operators indicates that most of their sales are not made directly to retail customers through the networks' own retail outlets. This suggests potential for countervailing power from dealers, distributors and independent retailers. The buyer power in this relationship would be exercised in negotiations over the level of connection payments made by mobile network operators to retailers (as well as the level of in-store promotion by retailers). Connection payments are subject to negotiation because independent mobile retailers can buy handsets from manufacturers and connect them to different networks, or to independent service providers (some of which are even owned by the retailer). This can benefit consumers because higher connection payments enable retailers to compete with each other by lowering retail prices to consumers. A simple form of the relationship between mobile network operators, customers and independent retailers is shown in Figure 3.6 below. The relationships can of course be more complex. For example, retailers may also sell the services of independent mobile service providers, and the degree to which handsets are bought separately may differ between retailers.
Figure 3.6

3.88 Retailers' bargaining power is supported by the brand strength of handset manufacturers. There are a limited number of large handset manufacturers, and Nokia alone accounts for about half of UK handset sales. Customer loyalty to handset brands makes it difficult for mobile network operators to avoid using popular brands or even specific popular handsets to supply their services. Mobile network operators are trying to supply more services through operator-specific handsets, but this is still at an early stage.
3.89 The mobile network operators claim that large retailers can have significant buyer power because of their strong high street presence. The Carphone Warehouse for example is a strong independent retailer, accounting for about a quarter of UK mobile connections. The Link and Phones4U are other major independent retailers dealing in both contract and pre-pay phones. Other large retail chains such as Dixons, Argos, Woolworths and the major supermarkets are major retailers of pre-pay phones.
3.90 The buyer power of these parties would be expected to increase according to the quantity and quality (ie revenue earning capability) of their customer base. Those with a higher proportion of contract customers would tend to be in the best position to exert power because contract customers spend more and represent a closer customer relationship. The existence of several large independent retailers selling contract phones potentially indicates a notable degree of buyer power. The sheer size of some of the retailers who are focused on pre-pay phones would also be expected to give them a degree of buyer power.
3.91 Oftel has asked mobile network operators and retailers to provide details concerning the bargaining power involved in their relationship. The information received suggests that large independent retailers are able to exercise significant bargaining power:
3.92 Looking forward, the fall in handset subsidies and a trend to more advanced services might reduce the relative importance of retailers focused mainly on pre-pay products. But if the concentration among independent retailers continues, their bargaining power should develop accordingly.
3.93 Of course, all the mobile network operators are well-recognised consumer brands, and the large mobile retailers depend on their relationships with the mobile network operators. The mobile network operators' high reach to a variety of retail outlets indicates their own negotiating power. But the relationship with larger retailers seems to be co-dependent. This is likely to diminish the potential for collective dominance as it would tend to increase the competition between mobile network operators rather than support the maintenance of a co-ordinated strategy.
Similar cost structures
3.94 Similar cost structures at the wholesale level will tend to dampen price competition in an oligopolistic market. This is because, for a given price level, similar costs will produce similar levels of profit, and this will facilitate the enforcement of a common pricing strategy. In addition cost homogeneity generally facilitates the detection of secret price cutting, since where costs are homogenous it is harder to claim that a price cut is not a deliberate attempt to depart from a common strategy.
3.95 Oftel shares the view of the Competition Commission on the relative costs of GSM 1800 and GSM 900 networks. Using economic depreciation, the costs of an 1800 network can be expected to be higher based on lower utilisation in the past, but the costs of the two types of network are essentially the same when analysed using accounting depreciation. Vodafone and O2 operate on GSM 900 networks, which have historically been lower cost networks for urban areas compared to the GSM 1800 networks used by T-Mobile and Orange. However, as network traffic is growing this cost advantage is diminishing.
3.96 In this chapter, some advantages are noted against other SMP criteria that impact on the relative costs borne by each mobile network operator. These advantages include economies of scale and the cost of raising capital. However, these advantages seem to be neither substantial nor inherently sustainable. Overall there do not seem to be significant differences in cost structures. This situation would tend to support the potential for maintenance of a co-ordinated position in the market.
Transparency
3.97 This criterion concerns the ability of mobile network operators to see what they are each charging, thus supporting the potential for maintenance of a co-ordinated outcome because competitors are able to discern any deviation from that outcome.
3.98 At the retail level, prices for most customers are fully published. Large customers who may obtain bespoke deals with undisclosed prices account for low shares of revenues and connections. At the wholesale level, information from the mobile network operators suggests that transparency of wholesale charges is not common. Vodafone has told Oftel that it publishes detailed information at wholesale as well as retail level, but Orange & T-Mobile have stated that they do not publish wh