TECHNICAL NOTE STATEMENT OF STOCKS AND FLOWS
STATEMENT OF STOCKS AND FLOWS
1 The international GFS standard as promulgated by the International Monetary Fund recommends that opening and closing 'stock' values be reconciled with all 'flows' occurring throughout the year. The standard is based on an analytical framework in which all changes in the values of stocks from one year to the next can be fully explained by the flows that have occurred during that year.
2 Institutional units hold assets (financial and non-financial) and incur liabilities (which by definition are financial). The level of these assets and liabilities at any point in time is the stock. The difference between assets and liabilities is net worth, which is a measure of the 'wealth' of units or of government. Anything which causes a change in these stocks of assets and liabilities is a flow. Flows are disaggregated into transactions and 'other economic flows'. A transaction is, for the most part, an interaction between two units by mutual agreement, whereas an 'other economic flow' is a change in the volume or value of a stock of a unit not resulting from a transaction.
3 By definition, the value of a stock at the end of a period is the sum of the stock at the beginning of the period and all the flows affecting that stock which took place during the period, i.e. S1 = S0 + F1 ,where S0 and S1 represent the values of a specific stock at the beginning and end of an accounting period, and F1 represents the net value of all flows during the period relevant to that particular stock.
4 Statistics on transactions giving rise to revenues and expenses are currently published as part of the GFS operating statement. Revenues are defined as transactions which increase net worth whereas expenses are transactions which decrease net worth. The difference between revenues and expenses, therefore, represents the change in net worth due to transactions. This equates to the GFS net operating balance.
5 Other economic flows can be further disaggregated into movements in asset/liability values resulting from price changes ('revaluations') and those resulting from volume changes ('other volume changes').
6 Revaluations result from changes to the value of the assets and liabilities whilst held. Revaluations can accrue to financial assets such as bonds and bills, shares and other forms of equity, as well as non-financial assets such as land and buildings.
7 Other volume changes refer to events that include:
- the recognition or de-recognition of assets or liabilities on the balance sheet - e.g. when resources become economically exploitable, or when an asset is no longer providing an economic benefit, and so is removed from the balance sheet.
- changes in the quantity or quality of the existing asset - these typically result from catastrophic losses through natural disasters, changes in the volume of natural assets such as fish or forest stocks, creation, discovery, cancellation or seizure of assets, or quality differences arising from events such as a change in the expected life of the asset.
- changes in the classification of assets - these usually arise when the use of an asset changes, e.g. if the use of a parcel of public land changes from recreational use to industrial use.
8 The net effect of all revaluations and other volume changes occurring through the year represents the change in net worth due to other economic flows.
9 Since the values of stocks at the end of a year must be equal to their values at the start of a year, plus all transactions and other economic flows affecting them during the year, it follows that the total change in net worth during a given year is equal to the change in net worth due to transactions, plus the change in net worth arising from other economic flows.
10 When working with actual reported data, it is often assumed that the difference between opening and closing net worth and the change in net worth due to transactions is attributable to the change in net worth due to other economic flows (i.e. other economic flows is effectively used as a balancing item). However, to ensure data quality it is necessary to independently collect and calculate the change in net worth due to other economic flows. In situations where the reported data do not add through, it is not necessarily the case that the data quality issue is in the other economic flows component of the framework. Where data quality is high throughout the reported data set, the three independently reported components (i.e. change in net worth as derived via the balance sheet, change in net worth due to transactions, and change in net worth due to other economic flows) will be consistent with each other.
11 The Commonwealth Government publishes a statement of other economic flows for the general government sector. This statement outlines all revaluations and other volume changes occurring throughout the year, which allows a full reconciliation of stocks and flows. This information allows the ABS to disaggregate other economic flows into price and volume effects. While some states also publish a statement of other economic flows, the majority currently do not. For local government, information on the components of other economic flows are also generally unavailable. Accordingly, the ABS does not have enough information on which to disaggregate other economic flows into its two components across the state and local levels of government.
Commonwealth General Government - Statement of Stocks and Flows
12 The statement of stocks and flows for the Commonwealth general government sector is presented in Table 1. During 2006-07 the net worth of the Commonwealth general government sector increased by $13,383 million. This was the result of a $19,279 million GFS net operating balance (which reflects the change in net worth due to transactions) combined with a change in net worth due to other economic flows of -$5,896 million. The change in other economic flows was largely the result of -$6,262 million in revaluations. The key contributors to this were revaluations in advances paid (-$4,372 million), investments, loans and placements (-$3,903 million) and unfunded superannuation and other employee entitlements ($5,144 million). In 2006-07, there was $366 million of assets recognised for the first time which contribute to the change in net worth as other volume changes.
TABLE 1. COMMONWEALTH , General Government - Statement of Stocks and Flows |
|  |
 |  |  | Opening Stocks as at June 2006 | Transactions | Revaluations | Other Volume changes | Closing Stocks
as at June 2007 |  |
 |  |  | $m | $m | $m | $m | $m |  |
|  |
Assets |  |  |  |  |  |  |
 | Financial assets |  |  |  |  |  |  |
 |  | Cash and deposits | 2 177 | -822 | -248 | - | 1 107 |  |
 |  | Advances paid | 25 502 | 1 505 | -4 372 | - | 22 635 |  |
 |  | Investments, loans and placements | 47 754 | 26 919 | -3 903 | - | 70 770 |  |
 |  | Other non-equity assets | 31 444 | - | 7 376 | - | 38 820 |  |
 |  | Equity | 44 186 | -8 908 | -1 115 | - | 34 163 |  |
 |  | Total | 151 063 | 18 694 | -2 262 | - | 167 495 |  |
 | Non-financial assets |  |  |  |  |  |  |
 |  | Land and fixed assets | 45 379 | 1 397 | 453 | 366 | 47 595 |  |
 |  | Other non-financial assets | 220 | 811 | -760 | - | 271 |  |
 |  | Total | 45 599 | 2 207 | -306 | 366 | 47 866 |  |
Total | 196 662 | 20 901 | -2 567 | 366 | 215 362 |  |
Liabilities |  |  |  |  |  |  |
 | Deposits held | 2 836 | 4 | 79 | - | 2 919 |  |
 | Advances received | - | - | - | - | - |  |
 | Borrowing | 63 415 | -889 | -76 | - | 62 450 |  |
 | Unfunded superannuation and other employee entitlements | 105 983 | - | 5 144 | - | 111 127 |  |
 | Other provisions | 6 421 | - | 687 | - | 7 108 |  |
 | Other non-equity liabilities | 28 193 | 2 508 | -2 139 | - | 28 562 |  |
 | Total | 206 849 | 1 623 | 3 694 | - | 212 166 |  |
GFS Net worth | -10 187 | 19 279 | -6 262 | 366 | 3 196 |  |
Net debt | -9 182 | . . | . . | . . | -29 144 |  |
Net financial worth | -55 786 | . . | . . | . . | -44 671 |  |
|  |
. . not applicable |
- nil or rounded to zero (including null cells) |
State and Local General Government - Statement of Stocks and Flows
13 Both the state and local tables (Table 2 and Table 3 respectively) highlight the significance of other economic flows. Though the net worth of state governments increased by $51,600 million during 2006-07, only $6,776 million of this increase can be attributed to transactions. The remainder ($44,824 million) is the result of other economic flows. The largest contributors were land and fixed assets ($26,197 million) and equity ($13,316 million). The increase in land and fixed assets in part reflects strong increases in land prices in 2006-07.
14 In 2006-07, the net worth of local government increased by $15,975 million. Only $3,173 million of this increase can be attributed to transactions. $12,802 million of the change in net worth is the result of other economic flows, which is mostly driven by increases in the value of land and fixed assets.
TABLE 2. STATE, General Government - Statement of Stocks and Flows |
|  |
 |  |  | Opening Stocks as at June 2006 | Transactions | Other Economic Flows | Closing Stocks
as at June 2007 |  |
 |  |  | $m | $m | $m | $m |  |
|  |
Assets |  |  |  |  |  |
 | Financial assets |  |  |  |  |  |
 |  | Cash and deposits | 10 045 | 208 | 34 | 10 287 |  |
 |  | Advances paid | 5 296 | -297 | 1 107 | 6 106 |  |
 |  | Investments, loans and placements | 46 778 | -2 174 | -698 | 43 906 |  |
 |  | Other non-equity assets | 17 754 | 163 | 3 465 | 21 382 |  |
 |  | Equity | 170 199 | 1 272 | 13 316 | 184 787 |  |
 |  | Total | 250 072 | -828 | 17 224 | 266 468 |  |
 | Non-financial assets |  |  |  |  |  |
 |  | Land and fixed assets | 298 213 | 5 239 | 26 197 | 329 649 |  |
 |  | Other non-financial assets | 4 009 | 538 | 417 | 4 964 |  |
 |  | Total | 302 221 | 5 777 | 26 614 | 334 612 |  |
Total | 552 294 | 4 949 | 43 838 | 601 081 |  |
Liabilities |  |  |  |  |  |
 | Deposits held | 1 553 | 46 | -5 | 1 594 |  |
 | Advances received | 3 110 | -60 | 299 | 3 349 |  |
 | Borrowing | 25 886 | 912 | 1 144 | 27 942 |  |
 | Unfunded superannuation and other employee entitlements | 88 930 | -106 | -6 922 | 81 902 |  |
 | Other provisions | 9 316 | - | -350 | 8 966 |  |
 | Other non-equity liabilities | 15 649 | -2 618 | 4 847 | 17 878 |  |
 | Total | 144 444 | -1 827 | -986 | 141 631 |  |
GFS Net worth | 407 850 | 6 776 | 44 824 | 459 450 |  |
Net debt | -31 570 | . . | . . | -27 414 |  |
Net financial worth | 105 628 | . . | . . | 124 837 |  |
|  |
. . not applicable |
- nil or rounded to zero (including null cells) |
TABLE 3. LOCAL , General Government - Statement of Stocks and Flows |
|  |
 |  |  | Opening Stocks
as at June 2006 | Transactions | Other Economic Flows | Closing Stocks
as at June 2007 |  |
 |  |  | $m | $m | $m | $m |  |
|  |
Assets |  |  |  |  |  |
 | Financial assets |  |  |  |  |  |
 |  | Cash and deposits | 4 996 | 115 | 462 | 5 573 |  |
 |  | Advances paid | 6 | -4 | 3 | 5 |  |
 |  | Investments, loans and placements | 5 360 | 344 | 383 | 6 087 |  |
 |  | Other non-equity assets | 1 918 | 251 | -12 | 2 157 |  |
 |  | Equity | 1 401 | 52 | 196 | 1 649 |  |
 |  | Total | 13 681 | 758 | 1 033 | 15 472 |  |
 | Non-financial assets |  |  |  |  |  |
 |  | Land and fixed assets | 195 943 | 2 965 | 11 842 | 210 750 |  |
 |  | Other non-financial assets | 1 508 | 499 | -295 | 1 712 |  |
 |  | Total | 197 451 | 3 464 | 11 547 | 212 462 |  |
Total | 211 133 | 4 222 | 12 579 | 227 934 |  |
Liabilities |  |  |  |  |  |
 | Deposits held | 396 | 15 | 14 | 425 |  |
 | Advances received | 433 | 2 | 34 | 469 |  |
 | Borrowing | 5 085 | 378 | 71 | 5 534 |  |
 | Unfunded superannuation and other employee entitlements | 1 990 | 98 | -11 | 2 077 |  |
 | Other provisions | 335 | -22 | 82 | 395 |  |
 | Other non-equity liabilities | 2 256 | 578 | -415 | 2 419 |  |
 | Total | 10 494 | 1 049 | -224 | 11 319 |  |
GFS Net worth | 200 639 | 3 173 | 12 802 | 216 614 |  |
Net debt | -4 449 | . . | . . | -5 237 |  |
Net financial worth | 3 187 | . . | . . | 4 152 |  |
|  |
. . not applicable |
Further information
15 For more information on the statement of stocks and flows, refer to Table 2.1 in
Australian System of Government Finance Statistics: Concepts, Sources and Methods (cat no 5514.0) and Chapter 4 of the
International Monetary Fund's Government Finance Statistics Manual 2001